diff options
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/media/common/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/Makefile | 6 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_core.c | 578 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_fops.c | 658 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_hlp.c | 1046 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_i2c.c | 421 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_vbi.c | 498 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_video.c | 1286 |
10 files changed, 1 insertions, 4505 deletions
diff --git a/drivers/media/common/Kconfig b/drivers/media/common/Kconfig index a2ae71270054..852b7d92fbdd 100644 --- a/drivers/media/common/Kconfig +++ b/drivers/media/common/Kconfig @@ -22,7 +22,6 @@ config VIDEO_TVEEPROM depends on I2C source "drivers/media/common/b2c2/Kconfig" -source "drivers/media/common/saa7146/Kconfig" source "drivers/media/common/siano/Kconfig" source "drivers/media/common/v4l2-tpg/Kconfig" source "drivers/media/common/videobuf2/Kconfig" diff --git a/drivers/media/common/Makefile b/drivers/media/common/Makefile index ad0b1e95fb12..d78a0df15478 100644 --- a/drivers/media/common/Makefile +++ b/drivers/media/common/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only -obj-y += b2c2/ saa7146/ siano/ v4l2-tpg/ videobuf2/ +obj-y += b2c2/ siano/ v4l2-tpg/ videobuf2/ # Please keep it alphabetically sorted by Kconfig name # (e. g. LC_ALL=C sort Makefile) diff --git a/drivers/media/common/saa7146/Kconfig b/drivers/media/common/saa7146/Kconfig deleted file mode 100644 index a0aa155e5d85..000000000000 --- a/drivers/media/common/saa7146/Kconfig +++ /dev/null @@ -1,10 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -config VIDEO_SAA7146 - tristate - depends on I2C && PCI - -config VIDEO_SAA7146_VV - tristate - depends on VIDEO_DEV - select VIDEOBUF_DMA_SG - select VIDEO_SAA7146 diff --git a/drivers/media/common/saa7146/Makefile b/drivers/media/common/saa7146/Makefile deleted file mode 100644 index 2a6337feaec8..000000000000 --- a/drivers/media/common/saa7146/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -saa7146-objs := saa7146_i2c.o saa7146_core.o -saa7146_vv-objs := saa7146_fops.o saa7146_video.o saa7146_hlp.o saa7146_vbi.o - -obj-$(CONFIG_VIDEO_SAA7146) += saa7146.o -obj-$(CONFIG_VIDEO_SAA7146_VV) += saa7146_vv.o diff --git a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c deleted file mode 100644 index e50fa0ff7c5d..000000000000 --- a/drivers/media/common/saa7146/saa7146_core.c +++ /dev/null @@ -1,578 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - saa7146.o - driver for generic saa7146-based hardware - - Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de> - -*/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <media/drv-intf/saa7146.h> -#include <linux/module.h> - -static int saa7146_num; - -unsigned int saa7146_debug; - -module_param(saa7146_debug, uint, 0644); -MODULE_PARM_DESC(saa7146_debug, "debug level (default: 0)"); - -#if 0 -static void dump_registers(struct saa7146_dev* dev) -{ - int i = 0; - - pr_info(" @ %li jiffies:\n", jiffies); - for (i = 0; i <= 0x148; i += 4) - pr_info("0x%03x: 0x%08x\n", i, saa7146_read(dev, i)); -} -#endif - -/**************************************************************************** - * gpio and debi helper functions - ****************************************************************************/ - -void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data) -{ - u32 value = 0; - - BUG_ON(port > 3); - - value = saa7146_read(dev, GPIO_CTRL); - value &= ~(0xff << (8*port)); - value |= (data << (8*port)); - saa7146_write(dev, GPIO_CTRL, value); -} - -/* This DEBI code is based on the saa7146 Stradis driver by Nathan Laredo */ -static inline int saa7146_wait_for_debi_done_sleep(struct saa7146_dev *dev, - unsigned long us1, unsigned long us2) -{ - unsigned long timeout; - int err; - - /* wait for registers to be programmed */ - timeout = jiffies + usecs_to_jiffies(us1); - while (1) { - err = time_after(jiffies, timeout); - if (saa7146_read(dev, MC2) & 2) - break; - if (err) { - pr_debug("%s: %s timed out while waiting for registers getting programmed\n", - dev->name, __func__); - return -ETIMEDOUT; - } - msleep(1); - } - - /* wait for transfer to complete */ - timeout = jiffies + usecs_to_jiffies(us2); - while (1) { - err = time_after(jiffies, timeout); - if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S)) - break; - saa7146_read(dev, MC2); - if (err) { - DEB_S("%s: %s timed out while waiting for transfer completion\n", - dev->name, __func__); - return -ETIMEDOUT; - } - msleep(1); - } - - return 0; -} - -static inline int saa7146_wait_for_debi_done_busyloop(struct saa7146_dev *dev, - unsigned long us1, unsigned long us2) -{ - unsigned long loops; - - /* wait for registers to be programmed */ - loops = us1; - while (1) { - if (saa7146_read(dev, MC2) & 2) - break; - if (!loops--) { - pr_err("%s: %s timed out while waiting for registers getting programmed\n", - dev->name, __func__); - return -ETIMEDOUT; - } - udelay(1); - } - - /* wait for transfer to complete */ - loops = us2 / 5; - while (1) { - if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S)) - break; - saa7146_read(dev, MC2); - if (!loops--) { - DEB_S("%s: %s timed out while waiting for transfer completion\n", - dev->name, __func__); - return -ETIMEDOUT; - } - udelay(5); - } - - return 0; -} - -int saa7146_wait_for_debi_done(struct saa7146_dev *dev, int nobusyloop) -{ - if (nobusyloop) - return saa7146_wait_for_debi_done_sleep(dev, 50000, 250000); - else - return saa7146_wait_for_debi_done_busyloop(dev, 50000, 250000); -} - -/**************************************************************************** - * general helper functions - ****************************************************************************/ - -/* this is videobuf_vmalloc_to_sg() from videobuf-dma-sg.c - make sure virt has been allocated with vmalloc_32(), otherwise the BUG() - may be triggered on highmem machines */ -static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages) -{ - struct scatterlist *sglist; - struct page *pg; - int i; - - sglist = kmalloc_array(nr_pages, sizeof(struct scatterlist), GFP_KERNEL); - if (NULL == sglist) - return NULL; - sg_init_table(sglist, nr_pages); - for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) { - pg = vmalloc_to_page(virt); - if (NULL == pg) - goto err; - BUG_ON(PageHighMem(pg)); - sg_set_page(&sglist[i], pg, PAGE_SIZE, 0); - } - return sglist; - - err: - kfree(sglist); - return NULL; -} - -/********************************************************************************/ -/* common page table functions */ - -void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt) -{ - int pages = (length+PAGE_SIZE-1)/PAGE_SIZE; - void *mem = vmalloc_32(length); - int slen = 0; - - if (NULL == mem) - goto err_null; - - if (!(pt->slist = vmalloc_to_sg(mem, pages))) - goto err_free_mem; - - if (saa7146_pgtable_alloc(pci, pt)) - goto err_free_slist; - - pt->nents = pages; - slen = dma_map_sg(&pci->dev, pt->slist, pt->nents, DMA_FROM_DEVICE); - if (0 == slen) - goto err_free_pgtable; - - if (0 != saa7146_pgtable_build_single(pci, pt, pt->slist, slen)) - goto err_unmap_sg; - - return mem; - -err_unmap_sg: - dma_unmap_sg(&pci->dev, pt->slist, pt->nents, DMA_FROM_DEVICE); -err_free_pgtable: - saa7146_pgtable_free(pci, pt); -err_free_slist: - kfree(pt->slist); - pt->slist = NULL; -err_free_mem: - vfree(mem); -err_null: - return NULL; -} - -void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt) -{ - dma_unmap_sg(&pci->dev, pt->slist, pt->nents, DMA_FROM_DEVICE); - saa7146_pgtable_free(pci, pt); - kfree(pt->slist); - pt->slist = NULL; - vfree(mem); -} - -void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt) -{ - if (NULL == pt->cpu) - return; - dma_free_coherent(&pci->dev, pt->size, pt->cpu, pt->dma); - pt->cpu = NULL; -} - -int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt) -{ - __le32 *cpu; - dma_addr_t dma_addr = 0; - - cpu = dma_alloc_coherent(&pci->dev, PAGE_SIZE, &dma_addr, GFP_KERNEL); - if (NULL == cpu) { - return -ENOMEM; - } - pt->size = PAGE_SIZE; - pt->cpu = cpu; - pt->dma = dma_addr; - - return 0; -} - -int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt, - struct scatterlist *list, int sglen ) -{ - __le32 *ptr, fill; - int nr_pages = 0; - int i,p; - - BUG_ON(0 == sglen); - BUG_ON(list->offset > PAGE_SIZE); - - /* if we have a user buffer, the first page may not be - aligned to a page boundary. */ - pt->offset = list->offset; - - ptr = pt->cpu; - for (i = 0; i < sglen; i++, list++) { -/* - pr_debug("i:%d, adr:0x%08x, len:%d, offset:%d\n", - i, sg_dma_address(list), sg_dma_len(list), - list->offset); -*/ - for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++) { - *ptr = cpu_to_le32(sg_dma_address(list) + p * 4096); - nr_pages++; - } - } - - - /* safety; fill the page table up with the last valid page */ - fill = *(ptr-1); - for(i=nr_pages;i<1024;i++) { - *ptr++ = fill; - } - -/* - ptr = pt->cpu; - pr_debug("offset: %d\n", pt->offset); - for(i=0;i<5;i++) { - pr_debug("ptr1 %d: 0x%08x\n", i, ptr[i]); - } -*/ - return 0; -} - -/********************************************************************************/ -/* interrupt handler */ -static irqreturn_t interrupt_hw(int irq, void *dev_id) -{ - struct saa7146_dev *dev = dev_id; - u32 isr; - u32 ack_isr; - - /* read out the interrupt status register */ - ack_isr = isr = saa7146_read(dev, ISR); - - /* is this our interrupt? */ - if ( 0 == isr ) { - /* nope, some other device */ - return IRQ_NONE; - } - - if (dev->ext) { - if (dev->ext->irq_mask & isr) { - if (dev->ext->irq_func) - dev->ext->irq_func(dev, &isr); - isr &= ~dev->ext->irq_mask; - } - } - if (0 != (isr & (MASK_27))) { - DEB_INT("irq: RPS0 (0x%08x)\n", isr); - if (dev->vv_data && dev->vv_callback) - dev->vv_callback(dev,isr); - isr &= ~MASK_27; - } - if (0 != (isr & (MASK_28))) { - if (dev->vv_data && dev->vv_callback) - dev->vv_callback(dev,isr); - isr &= ~MASK_28; - } - if (0 != (isr & (MASK_16|MASK_17))) { - SAA7146_IER_DISABLE(dev, MASK_16|MASK_17); - /* only wake up if we expect something */ - if (0 != dev->i2c_op) { - dev->i2c_op = 0; - wake_up(&dev->i2c_wq); - } else { - u32 psr = saa7146_read(dev, PSR); - u32 ssr = saa7146_read(dev, SSR); - pr_warn("%s: unexpected i2c irq: isr %08x psr %08x ssr %08x\n", - dev->name, isr, psr, ssr); - } - isr &= ~(MASK_16|MASK_17); - } - if( 0 != isr ) { - ERR("warning: interrupt enabled, but not handled properly.(0x%08x)\n", - isr); - ERR("disabling interrupt source(s)!\n"); - SAA7146_IER_DISABLE(dev,isr); - } - saa7146_write(dev, ISR, ack_isr); - return IRQ_HANDLED; -} - -/*********************************************************************************/ -/* configuration-functions */ - -static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent) -{ - struct saa7146_pci_extension_data *pci_ext = (struct saa7146_pci_extension_data *)ent->driver_data; - struct saa7146_extension *ext = pci_ext->ext; - struct saa7146_dev *dev; - int err = -ENOMEM; - - /* clear out mem for sure */ - dev = kzalloc(sizeof(struct saa7146_dev), GFP_KERNEL); - if (!dev) { - ERR("out of memory\n"); - goto out; - } - - /* create a nice device name */ - sprintf(dev->name, "saa7146 (%d)", saa7146_num); - - DEB_EE("pci:%p\n", pci); - - err = pci_enable_device(pci); - if (err < 0) { - ERR("pci_enable_device() failed\n"); - goto err_free; - } - - /* enable bus-mastering */ - pci_set_master(pci); - - dev->pci = pci; - - /* get chip-revision; this is needed to enable bug-fixes */ - dev->revision = pci->revision; - - /* remap the memory from virtual to physical address */ - - err = pci_request_region(pci, 0, "saa7146"); - if (err < 0) - goto err_disable; - - dev->mem = ioremap(pci_resource_start(pci, 0), - pci_resource_len(pci, 0)); - if (!dev->mem) { - ERR("ioremap() failed\n"); - err = -ENODEV; - goto err_release; - } - - /* we don't do a master reset here anymore, it screws up - some boards that don't have an i2c-eeprom for configuration - values */ -/* - saa7146_write(dev, MC1, MASK_31); -*/ - - /* disable all irqs */ - saa7146_write(dev, IER, 0); - - /* shut down all dma transfers and rps tasks */ - saa7146_write(dev, MC1, 0x30ff0000); - - /* clear out any rps-signals pending */ - saa7146_write(dev, MC2, 0xf8000000); - - /* request an interrupt for the saa7146 */ - err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED, - dev->name, dev); - if (err < 0) { - ERR("request_irq() failed\n"); - goto err_unmap; - } - - err = -ENOMEM; - - /* get memory for various stuff */ - dev->d_rps0.cpu_addr = dma_alloc_coherent(&pci->dev, SAA7146_RPS_MEM, - &dev->d_rps0.dma_handle, - GFP_KERNEL); - if (!dev->d_rps0.cpu_addr) - goto err_free_irq; - - dev->d_rps1.cpu_addr = dma_alloc_coherent(&pci->dev, SAA7146_RPS_MEM, - &dev->d_rps1.dma_handle, - GFP_KERNEL); - if (!dev->d_rps1.cpu_addr) - goto err_free_rps0; - - dev->d_i2c.cpu_addr = dma_alloc_coherent(&pci->dev, SAA7146_RPS_MEM, - &dev->d_i2c.dma_handle, GFP_KERNEL); - if (!dev->d_i2c.cpu_addr) - goto err_free_rps1; - - /* the rest + print status message */ - - pr_info("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x)\n", - dev->mem, dev->revision, pci->irq, - pci->subsystem_vendor, pci->subsystem_device); - dev->ext = ext; - - mutex_init(&dev->v4l2_lock); - spin_lock_init(&dev->int_slock); - spin_lock_init(&dev->slock); - - mutex_init(&dev->i2c_lock); - - dev->module = THIS_MODULE; - init_waitqueue_head(&dev->i2c_wq); - - /* set some sane pci arbitrition values */ - saa7146_write(dev, PCI_BT_V1, 0x1c00101f); - - /* TODO: use the status code of the callback */ - - err = -ENODEV; - - if (ext->probe && ext->probe(dev)) { - DEB_D("ext->probe() failed for %p. skipping device.\n", dev); - goto err_free_i2c; - } - - if (ext->attach(dev, pci_ext)) { - DEB_D("ext->attach() failed for %p. skipping device.\n", dev); - goto err_free_i2c; - } - /* V4L extensions will set the pci drvdata to the v4l2_device in the - attach() above. So for those cards that do not use V4L we have to - set it explicitly. */ - pci_set_drvdata(pci, &dev->v4l2_dev); - - saa7146_num++; - - err = 0; -out: - return err; - -err_free_i2c: - dma_free_coherent(&pci->dev, SAA7146_RPS_MEM, dev->d_i2c.cpu_addr, - dev->d_i2c.dma_handle); -err_free_rps1: - dma_free_coherent(&pci->dev, SAA7146_RPS_MEM, dev->d_rps1.cpu_addr, - dev->d_rps1.dma_handle); -err_free_rps0: - dma_free_coherent(&pci->dev, SAA7146_RPS_MEM, dev->d_rps0.cpu_addr, - dev->d_rps0.dma_handle); -err_free_irq: - free_irq(pci->irq, (void *)dev); -err_unmap: - iounmap(dev->mem); -err_release: - pci_release_region(pci, 0); -err_disable: - pci_disable_device(pci); -err_free: - kfree(dev); - goto out; -} - -static void saa7146_remove_one(struct pci_dev *pdev) -{ - struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev); - struct saa7146_dev *dev = to_saa7146_dev(v4l2_dev); - struct { - void *addr; - dma_addr_t dma; - } dev_map[] = { - { dev->d_i2c.cpu_addr, dev->d_i2c.dma_handle }, - { dev->d_rps1.cpu_addr, dev->d_rps1.dma_handle }, - { dev->d_rps0.cpu_addr, dev->d_rps0.dma_handle }, - { NULL, 0 } - }, *p; - - DEB_EE("dev:%p\n", dev); - - dev->ext->detach(dev); - - /* shut down all video dma transfers */ - saa7146_write(dev, MC1, 0x00ff0000); - - /* disable all irqs, release irq-routine */ - saa7146_write(dev, IER, 0); - - free_irq(pdev->irq, dev); - - for (p = dev_map; p->addr; p++) - dma_free_coherent(&pdev->dev, SAA7146_RPS_MEM, p->addr, - p->dma); - - iounmap(dev->mem); - pci_release_region(pdev, 0); - pci_disable_device(pdev); - kfree(dev); - - saa7146_num--; -} - -/*********************************************************************************/ -/* extension handling functions */ - -int saa7146_register_extension(struct saa7146_extension* ext) -{ - DEB_EE("ext:%p\n", ext); - - ext->driver.name = ext->name; - ext->driver.id_table = ext->pci_tbl; - ext->driver.probe = saa7146_init_one; - ext->driver.remove = saa7146_remove_one; - - pr_info("register extension '%s'\n", ext->name); - return pci_register_driver(&ext->driver); -} - -int saa7146_unregister_extension(struct saa7146_extension* ext) -{ - DEB_EE("ext:%p\n", ext); - pr_info("unregister extension '%s'\n", ext->name); - pci_unregister_driver(&ext->driver); - return 0; -} - -EXPORT_SYMBOL_GPL(saa7146_register_extension); -EXPORT_SYMBOL_GPL(saa7146_unregister_extension); - -/* misc functions used by extension modules */ -EXPORT_SYMBOL_GPL(saa7146_pgtable_alloc); -EXPORT_SYMBOL_GPL(saa7146_pgtable_free); -EXPORT_SYMBOL_GPL(saa7146_pgtable_build_single); -EXPORT_SYMBOL_GPL(saa7146_vmalloc_build_pgtable); -EXPORT_SYMBOL_GPL(saa7146_vfree_destroy_pgtable); -EXPORT_SYMBOL_GPL(saa7146_wait_for_debi_done); - -EXPORT_SYMBOL_GPL(saa7146_setgpio); - -EXPORT_SYMBOL_GPL(saa7146_i2c_adapter_prepare); - -EXPORT_SYMBOL_GPL(saa7146_debug); - -MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); -MODULE_DESCRIPTION("driver for generic saa7146-based hardware"); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c deleted file mode 100644 index e9a15de6126e..000000000000 --- a/drivers/media/common/saa7146/saa7146_fops.c +++ /dev/null @@ -1,658 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <media/drv-intf/saa7146_vv.h> -#include <linux/module.h> - -/****************************************************************************/ -/* resource management functions, shamelessly stolen from saa7134 driver */ - -int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - if (fh->resources & bit) { - DEB_D("already allocated! want: 0x%02x, cur:0x%02x\n", - bit, vv->resources); - /* have it already allocated */ - return 1; - } - - /* is it free? */ - if (vv->resources & bit) { - DEB_D("locked! vv->resources:0x%02x, we want:0x%02x\n", - vv->resources, bit); - /* no, someone else uses it */ - return 0; - } - /* it's free, grab it */ - fh->resources |= bit; - vv->resources |= bit; - DEB_D("res: get 0x%02x, cur:0x%02x\n", bit, vv->resources); - return 1; -} - -void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - BUG_ON((fh->resources & bits) != bits); - - fh->resources &= ~bits; - vv->resources &= ~bits; - DEB_D("res: put 0x%02x, cur:0x%02x\n", bits, vv->resources); -} - - -/********************************************************************************/ -/* common dma functions */ - -void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q, - struct saa7146_buf *buf) -{ - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - DEB_EE("dev:%p, buf:%p\n", dev, buf); - - videobuf_waiton(q, &buf->vb, 0, 0); - videobuf_dma_unmap(q->dev, dma); - videobuf_dma_free(dma); - buf->vb.state = VIDEOBUF_NEEDS_INIT; -} - - -/********************************************************************************/ -/* common buffer functions */ - -int saa7146_buffer_queue(struct saa7146_dev *dev, - struct saa7146_dmaqueue *q, - struct saa7146_buf *buf) -{ - assert_spin_locked(&dev->slock); - DEB_EE("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf); - - BUG_ON(!q); - - if (NULL == q->curr) { - q->curr = buf; - DEB_D("immediately activating buffer %p\n", buf); - buf->activate(dev,buf,NULL); - } else { - list_add_tail(&buf->vb.queue,&q->queue); - buf->vb.state = VIDEOBUF_QUEUED; - DEB_D("adding buffer %p to queue. (active buffer present)\n", - buf); - } - return 0; -} - -void saa7146_buffer_finish(struct saa7146_dev *dev, - struct saa7146_dmaqueue *q, - int state) -{ - assert_spin_locked(&dev->slock); - DEB_EE("dev:%p, dmaq:%p, state:%d\n", dev, q, state); - DEB_EE("q->curr:%p\n", q->curr); - - /* finish current buffer */ - if (NULL == q->curr) { - DEB_D("aiii. no current buffer\n"); - return; - } - - q->curr->vb.state = state; - q->curr->vb.ts = ktime_get_ns(); - wake_up(&q->curr->vb.done); - - q->curr = NULL; -} - -void saa7146_buffer_next(struct saa7146_dev *dev, - struct saa7146_dmaqueue *q, int vbi) -{ - struct saa7146_buf *buf,*next = NULL; - - BUG_ON(!q); - - DEB_INT("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi); - - assert_spin_locked(&dev->slock); - if (!list_empty(&q->queue)) { - /* activate next one from queue */ - buf = list_entry(q->queue.next,struct saa7146_buf,vb.queue); - list_del(&buf->vb.queue); - if (!list_empty(&q->queue)) - next = list_entry(q->queue.next,struct saa7146_buf, vb.queue); - q->curr = buf; - DEB_INT("next buffer: buf:%p, prev:%p, next:%p\n", - buf, q->queue.prev, q->queue.next); - buf->activate(dev,buf,next); - } else { - DEB_INT("no next buffer. stopping.\n"); - if( 0 != vbi ) { - /* turn off video-dma3 */ - saa7146_write(dev,MC1, MASK_20); - } else { - /* nothing to do -- just prevent next video-dma1 transfer - by lowering the protection address */ - - // fixme: fix this for vflip != 0 - - saa7146_write(dev, PROT_ADDR1, 0); - saa7146_write(dev, MC2, (MASK_02|MASK_18)); - - /* write the address of the rps-program */ - saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle); - /* turn on rps */ - saa7146_write(dev, MC1, (MASK_12 | MASK_28)); - -/* - printk("vdma%d.base_even: 0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1)); - printk("vdma%d.base_odd: 0x%08x\n", 1,saa7146_read(dev,BASE_ODD1)); - printk("vdma%d.prot_addr: 0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1)); - printk("vdma%d.base_page: 0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1)); - printk("vdma%d.pitch: 0x%08x\n", 1,saa7146_read(dev,PITCH1)); - printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1)); -*/ - } - del_timer(&q->timeout); - } -} - -void saa7146_buffer_timeout(struct timer_list *t) -{ - struct saa7146_dmaqueue *q = from_timer(q, t, timeout); - struct saa7146_dev *dev = q->dev; - unsigned long flags; - - DEB_EE("dev:%p, dmaq:%p\n", dev, q); - - spin_lock_irqsave(&dev->slock,flags); - if (q->curr) { - DEB_D("timeout on %p\n", q->curr); - saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR); - } - - /* we don't restart the transfer here like other drivers do. when - a streaming capture is disabled, the timeout function will be - called for the current buffer. if we activate the next buffer now, - we mess up our capture logic. if a timeout occurs on another buffer, - then something is seriously broken before, so no need to buffer the - next capture IMHO... */ -/* - saa7146_buffer_next(dev,q); -*/ - spin_unlock_irqrestore(&dev->slock,flags); -} - -/********************************************************************************/ -/* file operations */ - -static int fops_open(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_dev *dev = video_drvdata(file); - struct saa7146_fh *fh = NULL; - int result = 0; - - DEB_EE("file:%p, dev:%s\n", file, video_device_node_name(vdev)); - - if (mutex_lock_interruptible(vdev->lock)) - return -ERESTARTSYS; - - DEB_D("using: %p\n", dev); - - /* check if an extension is registered */ - if( NULL == dev->ext ) { - DEB_S("no extension registered for this device\n"); - result = -ENODEV; - goto out; - } - - /* allocate per open data */ - fh = kzalloc(sizeof(*fh),GFP_KERNEL); - if (NULL == fh) { - DEB_S("cannot allocate memory for per open data\n"); - result = -ENOMEM; - goto out; - } - - v4l2_fh_init(&fh->fh, vdev); - - file->private_data = &fh->fh; - fh->dev = dev; - - if (vdev->vfl_type == VFL_TYPE_VBI) { - DEB_S("initializing vbi...\n"); - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - result = saa7146_vbi_uops.open(dev,file); - if (dev->ext_vv_data->vbi_fops.open) - dev->ext_vv_data->vbi_fops.open(file); - } else { - DEB_S("initializing video...\n"); - result = saa7146_video_uops.open(dev,file); - } - - if (0 != result) { - goto out; - } - - if( 0 == try_module_get(dev->ext->module)) { - result = -EINVAL; - goto out; - } - - result = 0; - v4l2_fh_add(&fh->fh); -out: - if (fh && result != 0) { - kfree(fh); - file->private_data = NULL; - } - mutex_unlock(vdev->lock); - return result; -} - -static int fops_release(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - - DEB_EE("file:%p\n", file); - - mutex_lock(vdev->lock); - - if (vdev->vfl_type == VFL_TYPE_VBI) { - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - saa7146_vbi_uops.release(dev,file); - if (dev->ext_vv_data->vbi_fops.release) - dev->ext_vv_data->vbi_fops.release(file); - } else { - saa7146_video_uops.release(dev,file); - } - - v4l2_fh_del(&fh->fh); - v4l2_fh_exit(&fh->fh); - module_put(dev->ext->module); - file->private_data = NULL; - kfree(fh); - - mutex_unlock(vdev->lock); - - return 0; -} - -static int fops_mmap(struct file *file, struct vm_area_struct * vma) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - struct videobuf_queue *q; - int res; - - switch (vdev->vfl_type) { - case VFL_TYPE_VIDEO: { - DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n", - file, vma); - q = &fh->video_q; - break; - } - case VFL_TYPE_VBI: { - DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n", - file, vma); - if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT) - return -ENODEV; - q = &fh->vbi_q; - break; - } - default: - BUG(); - } - - if (mutex_lock_interruptible(vdev->lock)) - return -ERESTARTSYS; - res = videobuf_mmap_mapper(q, vma); - mutex_unlock(vdev->lock); - return res; -} - -static __poll_t __fops_poll(struct file *file, struct poll_table_struct *wait) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - struct videobuf_buffer *buf = NULL; - struct videobuf_queue *q; - __poll_t res = v4l2_ctrl_poll(file, wait); - - DEB_EE("file:%p, poll:%p\n", file, wait); - - if (vdev->vfl_type == VFL_TYPE_VBI) { - if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT) - return res | EPOLLOUT | EPOLLWRNORM; - if( 0 == fh->vbi_q.streaming ) - return res | videobuf_poll_stream(file, &fh->vbi_q, wait); - q = &fh->vbi_q; - } else { - DEB_D("using video queue\n"); - q = &fh->video_q; - } - - if (!list_empty(&q->stream)) - buf = list_entry(q->stream.next, struct videobuf_buffer, stream); - - if (!buf) { - DEB_D("buf == NULL!\n"); - return res | EPOLLERR; - } - - poll_wait(file, &buf->done, wait); - if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) { - DEB_D("poll succeeded!\n"); - return res | EPOLLIN | EPOLLRDNORM; - } - - DEB_D("nothing to poll for, buf->state:%d\n", buf->state); - return res; -} - -static __poll_t fops_poll(struct file *file, struct poll_table_struct *wait) -{ - struct video_device *vdev = video_devdata(file); - __poll_t res; - - mutex_lock(vdev->lock); - res = __fops_poll(file, wait); - mutex_unlock(vdev->lock); - return res; -} - -static ssize_t fops_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - int ret; - - switch (vdev->vfl_type) { - case VFL_TYPE_VIDEO: -/* - DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun", - file, data, (unsigned long)count); -*/ - return saa7146_video_uops.read(file,data,count,ppos); - case VFL_TYPE_VBI: -/* - DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n", - file, data, (unsigned long)count); -*/ - if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) { - if (mutex_lock_interruptible(vdev->lock)) - return -ERESTARTSYS; - ret = saa7146_vbi_uops.read(file, data, count, ppos); - mutex_unlock(vdev->lock); - return ret; - } - return -EINVAL; - default: - BUG(); - } -} - -static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - int ret; - - switch (vdev->vfl_type) { - case VFL_TYPE_VIDEO: - return -EINVAL; - case VFL_TYPE_VBI: - if (fh->dev->ext_vv_data->vbi_fops.write) { - if (mutex_lock_interruptible(vdev->lock)) - return -ERESTARTSYS; - ret = fh->dev->ext_vv_data->vbi_fops.write(file, data, count, ppos); - mutex_unlock(vdev->lock); - return ret; - } - return -EINVAL; - default: - BUG(); - } -} - -static const struct v4l2_file_operations video_fops = -{ - .owner = THIS_MODULE, - .open = fops_open, - .release = fops_release, - .read = fops_read, - .write = fops_write, - .poll = fops_poll, - .mmap = fops_mmap, - .unlocked_ioctl = video_ioctl2, -}; - -static void vv_callback(struct saa7146_dev *dev, unsigned long status) -{ - u32 isr = status; - - DEB_INT("dev:%p, isr:0x%08x\n", dev, (u32)status); - - if (0 != (isr & (MASK_27))) { - DEB_INT("irq: RPS0 (0x%08x)\n", isr); - saa7146_video_uops.irq_done(dev,isr); - } - - if (0 != (isr & (MASK_28))) { - u32 mc2 = saa7146_read(dev, MC2); - if( 0 != (mc2 & MASK_15)) { - DEB_INT("irq: RPS1 vbi workaround (0x%08x)\n", isr); - wake_up(&dev->vv_data->vbi_wq); - saa7146_write(dev,MC2, MASK_31); - return; - } - DEB_INT("irq: RPS1 (0x%08x)\n", isr); - saa7146_vbi_uops.irq_done(dev,isr); - } -} - -static const struct v4l2_ctrl_ops saa7146_ctrl_ops = { - .s_ctrl = saa7146_s_ctrl, -}; - -int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) -{ - struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler; - struct v4l2_pix_format *fmt; - struct v4l2_vbi_format *vbi; - struct saa7146_vv *vv; - int err; - - err = v4l2_device_register(&dev->pci->dev, &dev->v4l2_dev); - if (err) - return err; - - v4l2_ctrl_handler_init(hdl, 6); - v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, - V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); - v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, - V4L2_CID_CONTRAST, 0, 127, 1, 64); - v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, - V4L2_CID_SATURATION, 0, 127, 1, 64); - v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - if (hdl->error) { - err = hdl->error; - v4l2_ctrl_handler_free(hdl); - v4l2_device_unregister(&dev->v4l2_dev); - return err; - } - dev->v4l2_dev.ctrl_handler = hdl; - - vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL); - if (vv == NULL) { - ERR("out of memory. aborting.\n"); - v4l2_ctrl_handler_free(hdl); - v4l2_device_unregister(&dev->v4l2_dev); - return -ENOMEM; - } - ext_vv->vid_ops = saa7146_video_ioctl_ops; - ext_vv->vbi_ops = saa7146_vbi_ioctl_ops; - ext_vv->core_ops = &saa7146_video_ioctl_ops; - - DEB_EE("dev:%p\n", dev); - - /* set default values for video parts of the saa7146 */ - saa7146_write(dev, BCS_CTRL, 0x80400040); - - /* enable video-port pins */ - saa7146_write(dev, MC1, (MASK_10 | MASK_26)); - - /* save per-device extension data (one extension can - handle different devices that might need different - configuration data) */ - dev->ext_vv_data = ext_vv; - - vv->d_clipping.cpu_addr = - dma_alloc_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM, - &vv->d_clipping.dma_handle, GFP_KERNEL); - if( NULL == vv->d_clipping.cpu_addr ) { - ERR("out of memory. aborting.\n"); - kfree(vv); - v4l2_ctrl_handler_free(hdl); - v4l2_device_unregister(&dev->v4l2_dev); - return -ENOMEM; - } - - saa7146_video_uops.init(dev,vv); - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - saa7146_vbi_uops.init(dev,vv); - - vv->ov_fb.fmt.width = vv->standard->h_max_out; - vv->ov_fb.fmt.height = vv->standard->v_max_out; - vv->ov_fb.fmt.pixelformat = V4L2_PIX_FMT_RGB565; - vv->ov_fb.fmt.bytesperline = 2 * vv->ov_fb.fmt.width; - vv->ov_fb.fmt.sizeimage = vv->ov_fb.fmt.bytesperline * vv->ov_fb.fmt.height; - vv->ov_fb.fmt.colorspace = V4L2_COLORSPACE_SRGB; - - fmt = &vv->video_fmt; - fmt->width = 384; - fmt->height = 288; - fmt->pixelformat = V4L2_PIX_FMT_BGR24; - fmt->field = V4L2_FIELD_ANY; - fmt->colorspace = V4L2_COLORSPACE_SMPTE170M; - fmt->bytesperline = 3 * fmt->width; - fmt->sizeimage = fmt->bytesperline * fmt->height; - - vbi = &vv->vbi_fmt; - vbi->sampling_rate = 27000000; - vbi->offset = 248; /* todo */ - vbi->samples_per_line = 720 * 2; - vbi->sample_format = V4L2_PIX_FMT_GREY; - - /* fixme: this only works for PAL */ - vbi->start[0] = 5; - vbi->count[0] = 16; - vbi->start[1] = 312; - vbi->count[1] = 16; - - timer_setup(&vv->vbi_read_timeout, NULL, 0); - - vv->ov_fb.capability = V4L2_FBUF_CAP_LIST_CLIPPING; - vv->ov_fb.flags = V4L2_FBUF_FLAG_PRIMARY; - dev->vv_data = vv; - dev->vv_callback = &vv_callback; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_vv_init); - -int saa7146_vv_release(struct saa7146_dev* dev) -{ - struct saa7146_vv *vv = dev->vv_data; - - DEB_EE("dev:%p\n", dev); - - v4l2_device_unregister(&dev->v4l2_dev); - dma_free_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM, - vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle); - v4l2_ctrl_handler_free(&dev->ctrl_handler); - kfree(vv); - dev->vv_data = NULL; - dev->vv_callback = NULL; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_vv_release); - -int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev, - char *name, int type) -{ - int err; - int i; - - DEB_EE("dev:%p, name:'%s', type:%d\n", dev, name, type); - - vfd->fops = &video_fops; - if (type == VFL_TYPE_VIDEO) - vfd->ioctl_ops = &dev->ext_vv_data->vid_ops; - else - vfd->ioctl_ops = &dev->ext_vv_data->vbi_ops; - vfd->release = video_device_release_empty; - vfd->lock = &dev->v4l2_lock; - vfd->v4l2_dev = &dev->v4l2_dev; - vfd->tvnorms = 0; - for (i = 0; i < dev->ext_vv_data->num_stds; i++) - vfd->tvnorms |= dev->ext_vv_data->stds[i].id; - strscpy(vfd->name, name, sizeof(vfd->name)); - vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | - V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; - vfd->device_caps |= dev->ext_vv_data->capabilities; - if (type == VFL_TYPE_VIDEO) - vfd->device_caps &= - ~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT); - else - vfd->device_caps &= - ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_AUDIO); - video_set_drvdata(vfd, dev); - - err = video_register_device(vfd, type, -1); - if (err < 0) { - ERR("cannot register v4l2 device. skipping.\n"); - return err; - } - - pr_info("%s: registered device %s [v4l2]\n", - dev->name, video_device_node_name(vfd)); - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_register_device); - -int saa7146_unregister_device(struct video_device *vfd, struct saa7146_dev *dev) -{ - DEB_EE("dev:%p\n", dev); - - video_unregister_device(vfd); - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_unregister_device); - -static int __init saa7146_vv_init_module(void) -{ - return 0; -} - - -static void __exit saa7146_vv_cleanup_module(void) -{ -} - -module_init(saa7146_vv_init_module); -module_exit(saa7146_vv_cleanup_module); - -MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); -MODULE_DESCRIPTION("video4linux driver for saa7146-based hardware"); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/common/saa7146/saa7146_hlp.c b/drivers/media/common/saa7146/saa7146_hlp.c deleted file mode 100644 index 6c9946a402ee..000000000000 --- a/drivers/media/common/saa7146/saa7146_hlp.c +++ /dev/null @@ -1,1046 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/export.h> -#include <media/drv-intf/saa7146_vv.h> - -static void calculate_output_format_register(struct saa7146_dev* saa, u32 palette, u32* clip_format) -{ - /* clear out the necessary bits */ - *clip_format &= 0x0000ffff; - /* set these bits new */ - *clip_format |= (( ((palette&0xf00)>>8) << 30) | ((palette&0x00f) << 24) | (((palette&0x0f0)>>4) << 16)); -} - -static void calculate_hps_source_and_sync(struct saa7146_dev *dev, int source, int sync, u32* hps_ctrl) -{ - *hps_ctrl &= ~(MASK_30 | MASK_31 | MASK_28); - *hps_ctrl |= (source << 30) | (sync << 28); -} - -static void calculate_hxo_and_hyo(struct saa7146_vv *vv, u32* hps_h_scale, u32* hps_ctrl) -{ - int hyo = 0, hxo = 0; - - hyo = vv->standard->v_offset; - hxo = vv->standard->h_offset; - - *hps_h_scale &= ~(MASK_B0 | 0xf00); - *hps_h_scale |= (hxo << 0); - - *hps_ctrl &= ~(MASK_W0 | MASK_B2); - *hps_ctrl |= (hyo << 12); -} - -/* helper functions for the calculation of the horizontal- and vertical - scaling registers, clip-format-register etc ... - these functions take pointers to the (most-likely read-out - original-values) and manipulate them according to the requested - changes. -*/ - -/* hps_coeff used for CXY and CXUV; scale 1/1 -> scale 1/64 */ -static struct { - u16 hps_coeff; - u16 weight_sum; -} hps_h_coeff_tab [] = { - {0x00, 2}, {0x02, 4}, {0x00, 4}, {0x06, 8}, {0x02, 8}, - {0x08, 8}, {0x00, 8}, {0x1E, 16}, {0x0E, 8}, {0x26, 8}, - {0x06, 8}, {0x42, 8}, {0x02, 8}, {0x80, 8}, {0x00, 8}, - {0xFE, 16}, {0xFE, 8}, {0x7E, 8}, {0x7E, 8}, {0x3E, 8}, - {0x3E, 8}, {0x1E, 8}, {0x1E, 8}, {0x0E, 8}, {0x0E, 8}, - {0x06, 8}, {0x06, 8}, {0x02, 8}, {0x02, 8}, {0x00, 8}, - {0x00, 8}, {0xFE, 16}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, - {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, - {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, - {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0x7E, 8}, - {0x7E, 8}, {0x3E, 8}, {0x3E, 8}, {0x1E, 8}, {0x1E, 8}, - {0x0E, 8}, {0x0E, 8}, {0x06, 8}, {0x06, 8}, {0x02, 8}, - {0x02, 8}, {0x00, 8}, {0x00, 8}, {0xFE, 16} -}; - -/* table of attenuation values for horizontal scaling */ -static u8 h_attenuation[] = { 1, 2, 4, 8, 2, 4, 8, 16, 0}; - -/* calculate horizontal scale registers */ -static int calculate_h_scale_registers(struct saa7146_dev *dev, - int in_x, int out_x, int flip_lr, - u32* hps_ctrl, u32* hps_v_gain, u32* hps_h_prescale, u32* hps_h_scale) -{ - /* horizontal prescaler */ - u32 dcgx = 0, xpsc = 0, xacm = 0, cxy = 0, cxuv = 0; - /* horizontal scaler */ - u32 xim = 0, xp = 0, xsci =0; - /* vertical scale & gain */ - u32 pfuv = 0; - - /* helper variables */ - u32 h_atten = 0, i = 0; - - if ( 0 == out_x ) { - return -EINVAL; - } - - /* mask out vanity-bit */ - *hps_ctrl &= ~MASK_29; - - /* calculate prescale-(xspc)-value: [n .. 1/2) : 1 - [1/2 .. 1/3) : 2 - [1/3 .. 1/4) : 3 - ... */ - if (in_x > out_x) { - xpsc = in_x / out_x; - } - else { - /* zooming */ - xpsc = 1; - } - - /* if flip_lr-bit is set, number of pixels after - horizontal prescaling must be < 384 */ - if ( 0 != flip_lr ) { - - /* set vanity bit */ - *hps_ctrl |= MASK_29; - - while (in_x / xpsc >= 384 ) - xpsc++; - } - /* if zooming is wanted, number of pixels after - horizontal prescaling must be < 768 */ - else { - while ( in_x / xpsc >= 768 ) - xpsc++; - } - - /* maximum prescale is 64 (p.69) */ - if ( xpsc > 64 ) - xpsc = 64; - - /* keep xacm clear*/ - xacm = 0; - - /* set horizontal filter parameters (CXY = CXUV) */ - cxy = hps_h_coeff_tab[( (xpsc - 1) < 63 ? (xpsc - 1) : 63 )].hps_coeff; - cxuv = cxy; - - /* calculate and set horizontal fine scale (xsci) */ - - /* bypass the horizontal scaler ? */ - if ( (in_x == out_x) && ( 1 == xpsc ) ) - xsci = 0x400; - else - xsci = ( (1024 * in_x) / (out_x * xpsc) ) + xpsc; - - /* set start phase for horizontal fine scale (xp) to 0 */ - xp = 0; - - /* set xim, if we bypass the horizontal scaler */ - if ( 0x400 == xsci ) - xim = 1; - else - xim = 0; - - /* if the prescaler is bypassed, enable horizontal - accumulation mode (xacm) and clear dcgx */ - if( 1 == xpsc ) { - xacm = 1; - dcgx = 0; - } else { - xacm = 0; - /* get best match in the table of attenuations - for horizontal scaling */ - h_atten = hps_h_coeff_tab[( (xpsc - 1) < 63 ? (xpsc - 1) : 63 )].weight_sum; - - for (i = 0; h_attenuation[i] != 0; i++) { - if (h_attenuation[i] >= h_atten) - break; - } - - dcgx = i; - } - - /* the horizontal scaling increment controls the UV filter - to reduce the bandwidth to improve the display quality, - so set it ... */ - if ( xsci == 0x400) - pfuv = 0x00; - else if ( xsci < 0x600) - pfuv = 0x01; - else if ( xsci < 0x680) - pfuv = 0x11; - else if ( xsci < 0x700) - pfuv = 0x22; - else - pfuv = 0x33; - - - *hps_v_gain &= MASK_W0|MASK_B2; - *hps_v_gain |= (pfuv << 24); - - *hps_h_scale &= ~(MASK_W1 | 0xf000); - *hps_h_scale |= (xim << 31) | (xp << 24) | (xsci << 12); - - *hps_h_prescale |= (dcgx << 27) | ((xpsc-1) << 18) | (xacm << 17) | (cxy << 8) | (cxuv << 0); - - return 0; -} - -static struct { - u16 hps_coeff; - u16 weight_sum; -} hps_v_coeff_tab [] = { - {0x0100, 2}, {0x0102, 4}, {0x0300, 4}, {0x0106, 8}, {0x0502, 8}, - {0x0708, 8}, {0x0F00, 8}, {0x011E, 16}, {0x110E, 16}, {0x1926, 16}, - {0x3906, 16}, {0x3D42, 16}, {0x7D02, 16}, {0x7F80, 16}, {0xFF00, 16}, - {0x01FE, 32}, {0x01FE, 32}, {0x817E, 32}, {0x817E, 32}, {0xC13E, 32}, - {0xC13E, 32}, {0xE11E, 32}, {0xE11E, 32}, {0xF10E, 32}, {0xF10E, 32}, - {0xF906, 32}, {0xF906, 32}, {0xFD02, 32}, {0xFD02, 32}, {0xFF00, 32}, - {0xFF00, 32}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, - {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, - {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, - {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x817E, 64}, - {0x817E, 64}, {0xC13E, 64}, {0xC13E, 64}, {0xE11E, 64}, {0xE11E, 64}, - {0xF10E, 64}, {0xF10E, 64}, {0xF906, 64}, {0xF906, 64}, {0xFD02, 64}, - {0xFD02, 64}, {0xFF00, 64}, {0xFF00, 64}, {0x01FE, 128} -}; - -/* table of attenuation values for vertical scaling */ -static u16 v_attenuation[] = { 2, 4, 8, 16, 32, 64, 128, 256, 0}; - -/* calculate vertical scale registers */ -static int calculate_v_scale_registers(struct saa7146_dev *dev, enum v4l2_field field, - int in_y, int out_y, u32* hps_v_scale, u32* hps_v_gain) -{ - int lpi = 0; - - /* vertical scaling */ - u32 yacm = 0, ysci = 0, yacl = 0, ypo = 0, ype = 0; - /* vertical scale & gain */ - u32 dcgy = 0, cya_cyb = 0; - - /* helper variables */ - u32 v_atten = 0, i = 0; - - /* error, if vertical zooming */ - if ( in_y < out_y ) { - return -EINVAL; - } - - /* linear phase interpolation may be used - if scaling is between 1 and 1/2 (both fields used) - or scaling is between 1/2 and 1/4 (if only one field is used) */ - - if (V4L2_FIELD_HAS_BOTH(field)) { - if( 2*out_y >= in_y) { - lpi = 1; - } - } else if (field == V4L2_FIELD_TOP - || field == V4L2_FIELD_ALTERNATE - || field == V4L2_FIELD_BOTTOM) { - if( 4*out_y >= in_y ) { - lpi = 1; - } - out_y *= 2; - } - if( 0 != lpi ) { - - yacm = 0; - yacl = 0; - cya_cyb = 0x00ff; - - /* calculate scaling increment */ - if ( in_y > out_y ) - ysci = ((1024 * in_y) / (out_y + 1)) - 1024; - else - ysci = 0; - - dcgy = 0; - - /* calculate ype and ypo */ - ype = ysci / 16; - ypo = ype + (ysci / 64); - - } else { - yacm = 1; - - /* calculate scaling increment */ - ysci = (((10 * 1024 * (in_y - out_y - 1)) / in_y) + 9) / 10; - - /* calculate ype and ypo */ - ypo = ype = ((ysci + 15) / 16); - - /* the sequence length interval (yacl) has to be set according - to the prescale value, e.g. [n .. 1/2) : 0 - [1/2 .. 1/3) : 1 - [1/3 .. 1/4) : 2 - ... */ - if ( ysci < 512) { - yacl = 0; - } else { - yacl = ( ysci / (1024 - ysci) ); - } - - /* get filter coefficients for cya, cyb from table hps_v_coeff_tab */ - cya_cyb = hps_v_coeff_tab[ (yacl < 63 ? yacl : 63 ) ].hps_coeff; - - /* get best match in the table of attenuations for vertical scaling */ - v_atten = hps_v_coeff_tab[ (yacl < 63 ? yacl : 63 ) ].weight_sum; - - for (i = 0; v_attenuation[i] != 0; i++) { - if (v_attenuation[i] >= v_atten) - break; - } - - dcgy = i; - } - - /* ypo and ype swapped in spec ? */ - *hps_v_scale |= (yacm << 31) | (ysci << 21) | (yacl << 15) | (ypo << 8 ) | (ype << 1); - - *hps_v_gain &= ~(MASK_W0|MASK_B2); - *hps_v_gain |= (dcgy << 16) | (cya_cyb << 0); - - return 0; -} - -/* simple bubble-sort algorithm with duplicate elimination */ -static int sort_and_eliminate(u32* values, int* count) -{ - int low = 0, high = 0, top = 0; - int cur = 0, next = 0; - - /* sanity checks */ - if( (0 > *count) || (NULL == values) ) { - return -EINVAL; - } - - /* bubble sort the first @count items of the array @values */ - for( top = *count; top > 0; top--) { - for( low = 0, high = 1; high < top; low++, high++) { - if( values[low] > values[high] ) - swap(values[low], values[high]); - } - } - - /* remove duplicate items */ - for( cur = 0, next = 1; next < *count; next++) { - if( values[cur] != values[next]) - values[++cur] = values[next]; - } - - *count = cur + 1; - - return 0; -} - -static void calculate_clipping_registers_rect(struct saa7146_dev *dev, struct saa7146_fh *fh, - struct saa7146_video_dma *vdma2, u32* clip_format, u32* arbtr_ctrl, enum v4l2_field field) -{ - struct saa7146_vv *vv = dev->vv_data; - __le32 *clipping = vv->d_clipping.cpu_addr; - - int width = vv->ov.win.w.width; - int height = vv->ov.win.w.height; - int clipcount = vv->ov.nclips; - - u32 line_list[32]; - u32 pixel_list[32]; - int numdwords = 0; - - int i = 0, j = 0; - int cnt_line = 0, cnt_pixel = 0; - - int x[32], y[32], w[32], h[32]; - - /* clear out memory */ - memset(&line_list[0], 0x00, sizeof(u32)*32); - memset(&pixel_list[0], 0x00, sizeof(u32)*32); - memset(clipping, 0x00, SAA7146_CLIPPING_MEM); - - /* fill the line and pixel-lists */ - for(i = 0; i < clipcount; i++) { - int l = 0, r = 0, t = 0, b = 0; - - x[i] = vv->ov.clips[i].c.left; - y[i] = vv->ov.clips[i].c.top; - w[i] = vv->ov.clips[i].c.width; - h[i] = vv->ov.clips[i].c.height; - - if( w[i] < 0) { - x[i] += w[i]; w[i] = -w[i]; - } - if( h[i] < 0) { - y[i] += h[i]; h[i] = -h[i]; - } - if( x[i] < 0) { - w[i] += x[i]; x[i] = 0; - } - if( y[i] < 0) { - h[i] += y[i]; y[i] = 0; - } - if( 0 != vv->vflip ) { - y[i] = height - y[i] - h[i]; - } - - l = x[i]; - r = x[i]+w[i]; - t = y[i]; - b = y[i]+h[i]; - - /* insert left/right coordinates */ - pixel_list[ 2*i ] = min_t(int, l, width); - pixel_list[(2*i)+1] = min_t(int, r, width); - /* insert top/bottom coordinates */ - line_list[ 2*i ] = min_t(int, t, height); - line_list[(2*i)+1] = min_t(int, b, height); - } - - /* sort and eliminate lists */ - cnt_line = cnt_pixel = 2*clipcount; - sort_and_eliminate( &pixel_list[0], &cnt_pixel ); - sort_and_eliminate( &line_list[0], &cnt_line ); - - /* calculate the number of used u32s */ - numdwords = max_t(int, (cnt_line+1), (cnt_pixel+1))*2; - numdwords = max_t(int, 4, numdwords); - numdwords = min_t(int, 64, numdwords); - - /* fill up cliptable */ - for(i = 0; i < cnt_pixel; i++) { - clipping[2*i] |= cpu_to_le32(pixel_list[i] << 16); - } - for(i = 0; i < cnt_line; i++) { - clipping[(2*i)+1] |= cpu_to_le32(line_list[i] << 16); - } - - /* fill up cliptable with the display infos */ - for(j = 0; j < clipcount; j++) { - - for(i = 0; i < cnt_pixel; i++) { - - if( x[j] < 0) - x[j] = 0; - - if( pixel_list[i] < (x[j] + w[j])) { - - if ( pixel_list[i] >= x[j] ) { - clipping[2*i] |= cpu_to_le32(1 << j); - } - } - } - for(i = 0; i < cnt_line; i++) { - - if( y[j] < 0) - y[j] = 0; - - if( line_list[i] < (y[j] + h[j]) ) { - - if( line_list[i] >= y[j] ) { - clipping[(2*i)+1] |= cpu_to_le32(1 << j); - } - } - } - } - - /* adjust arbitration control register */ - *arbtr_ctrl &= 0xffff00ff; - *arbtr_ctrl |= 0x00001c00; - - vdma2->base_even = vv->d_clipping.dma_handle; - vdma2->base_odd = vv->d_clipping.dma_handle; - vdma2->prot_addr = vv->d_clipping.dma_handle+((sizeof(u32))*(numdwords)); - vdma2->base_page = 0x04; - vdma2->pitch = 0x00; - vdma2->num_line_byte = (0 << 16 | (sizeof(u32))*(numdwords-1) ); - - /* set clipping-mode. this depends on the field(s) used */ - *clip_format &= 0xfffffff7; - if (V4L2_FIELD_HAS_BOTH(field)) { - *clip_format |= 0x00000008; - } else { - *clip_format |= 0x00000000; - } -} - -/* disable clipping */ -static void saa7146_disable_clipping(struct saa7146_dev *dev) -{ - u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - - /* mask out relevant bits (=lower word)*/ - clip_format &= MASK_W1; - - /* upload clipping-registers*/ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); - - /* disable video dma2 */ - saa7146_write(dev, MC1, MASK_21); -} - -static void saa7146_set_clipping_rect(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - enum v4l2_field field = vv->ov.win.field; - struct saa7146_video_dma vdma2; - u32 clip_format; - u32 arbtr_ctrl; - - /* check clipcount, disable clipping if clipcount == 0*/ - if (vv->ov.nclips == 0) { - saa7146_disable_clipping(dev); - return; - } - - clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); - - calculate_clipping_registers_rect(dev, fh, &vdma2, &clip_format, &arbtr_ctrl, field); - - /* set clipping format */ - clip_format &= 0xffff0008; - clip_format |= (SAA7146_CLIPPING_RECT << 4); - - /* prepare video dma2 */ - saa7146_write(dev, BASE_EVEN2, vdma2.base_even); - saa7146_write(dev, BASE_ODD2, vdma2.base_odd); - saa7146_write(dev, PROT_ADDR2, vdma2.prot_addr); - saa7146_write(dev, BASE_PAGE2, vdma2.base_page); - saa7146_write(dev, PITCH2, vdma2.pitch); - saa7146_write(dev, NUM_LINE_BYTE2, vdma2.num_line_byte); - - /* prepare the rest */ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); - - /* upload clip_control-register, clipping-registers, enable video dma2 */ - saa7146_write(dev, MC2, (MASK_05 | MASK_21 | MASK_03 | MASK_19)); - saa7146_write(dev, MC1, (MASK_05 | MASK_21)); -} - -static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, enum v4l2_field field) -{ - struct saa7146_vv *vv = dev->vv_data; - - int source = vv->current_hps_source; - int sync = vv->current_hps_sync; - - u32 hps_v_scale = 0, hps_v_gain = 0, hps_ctrl = 0, hps_h_prescale = 0, hps_h_scale = 0; - - /* set vertical scale */ - hps_v_scale = 0; /* all bits get set by the function-call */ - hps_v_gain = 0; /* fixme: saa7146_read(dev, HPS_V_GAIN);*/ - calculate_v_scale_registers(dev, field, vv->standard->v_field*2, height, &hps_v_scale, &hps_v_gain); - - /* set horizontal scale */ - hps_ctrl = 0; - hps_h_prescale = 0; /* all bits get set in the function */ - hps_h_scale = 0; - calculate_h_scale_registers(dev, vv->standard->h_pixels, width, vv->hflip, &hps_ctrl, &hps_v_gain, &hps_h_prescale, &hps_h_scale); - - /* set hyo and hxo */ - calculate_hxo_and_hyo(vv, &hps_h_scale, &hps_ctrl); - calculate_hps_source_and_sync(dev, source, sync, &hps_ctrl); - - /* write out new register contents */ - saa7146_write(dev, HPS_V_SCALE, hps_v_scale); - saa7146_write(dev, HPS_V_GAIN, hps_v_gain); - saa7146_write(dev, HPS_CTRL, hps_ctrl); - saa7146_write(dev, HPS_H_PRESCALE,hps_h_prescale); - saa7146_write(dev, HPS_H_SCALE, hps_h_scale); - - /* upload shadow-ram registers */ - saa7146_write(dev, MC2, (MASK_05 | MASK_06 | MASK_21 | MASK_22) ); -} - -/* calculate the new memory offsets for a desired position */ -static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int w_height, enum v4l2_field field, u32 pixelformat) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pixelformat); - - int b_depth = vv->ov_fmt->depth; - int b_bpl = vv->ov_fb.fmt.bytesperline; - /* The unsigned long cast is to remove a 64-bit compile warning since - it looks like a 64-bit address is cast to a 32-bit value, even - though the base pointer is really a 32-bit physical address that - goes into a 32-bit DMA register. - FIXME: might not work on some 64-bit platforms, but see the FIXME - in struct v4l2_framebuffer (videodev2.h) for that. - */ - u32 base = (u32)(unsigned long)vv->ov_fb.base; - - struct saa7146_video_dma vdma1; - - /* calculate memory offsets for picture, look if we shall top-down-flip */ - vdma1.pitch = 2*b_bpl; - if ( 0 == vv->vflip ) { - vdma1.base_even = base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even + (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_even + (w_height * (vdma1.pitch / 2)); - } - else { - vdma1.base_even = base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even - (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_odd - (w_height * (vdma1.pitch / 2)); - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - - if ( 0 != vv->vflip ) { - vdma1.pitch *= -1; - } - - vdma1.base_page = sfmt->swap; - vdma1.num_line_byte = (vv->standard->v_field<<16)+vv->standard->h_pixels; - - saa7146_write_out_dma(dev, 1, &vdma1); -} - -static void saa7146_set_output_format(struct saa7146_dev *dev, unsigned long palette) -{ - u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - - /* call helper function */ - calculate_output_format_register(dev,palette,&clip_format); - - /* update the hps registers */ - saa7146_write(dev, CLIP_FORMAT_CTRL, clip_format); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); -} - -/* select input-source */ -void saa7146_set_hps_source_and_sync(struct saa7146_dev *dev, int source, int sync) -{ - struct saa7146_vv *vv = dev->vv_data; - u32 hps_ctrl = 0; - - /* read old state */ - hps_ctrl = saa7146_read(dev, HPS_CTRL); - - hps_ctrl &= ~( MASK_31 | MASK_30 | MASK_28 ); - hps_ctrl |= (source << 30) | (sync << 28); - - /* write back & upload register */ - saa7146_write(dev, HPS_CTRL, hps_ctrl); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); - - vv->current_hps_source = source; - vv->current_hps_sync = sync; -} -EXPORT_SYMBOL_GPL(saa7146_set_hps_source_and_sync); - -int saa7146_enable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - saa7146_set_window(dev, vv->ov.win.w.width, vv->ov.win.w.height, vv->ov.win.field); - saa7146_set_position(dev, vv->ov.win.w.left, vv->ov.win.w.top, vv->ov.win.w.height, vv->ov.win.field, vv->ov_fmt->pixelformat); - saa7146_set_output_format(dev, vv->ov_fmt->trans); - saa7146_set_clipping_rect(fh); - - /* enable video dma1 */ - saa7146_write(dev, MC1, (MASK_06 | MASK_22)); - return 0; -} - -void saa7146_disable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - - /* disable clipping + video dma1 */ - saa7146_disable_clipping(dev); - saa7146_write(dev, MC1, MASK_22); -} - -void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) -{ - int where = 0; - - if( which < 1 || which > 3) { - return; - } - - /* calculate starting address */ - where = (which-1)*0x18; - - saa7146_write(dev, where, vdma->base_odd); - saa7146_write(dev, where+0x04, vdma->base_even); - saa7146_write(dev, where+0x08, vdma->prot_addr); - saa7146_write(dev, where+0x0c, vdma->pitch); - saa7146_write(dev, where+0x10, vdma->base_page); - saa7146_write(dev, where+0x14, vdma->num_line_byte); - - /* upload */ - saa7146_write(dev, MC2, (MASK_02<<(which-1))|(MASK_18<<(which-1))); -/* - printk("vdma%d.base_even: 0x%08x\n", which,vdma->base_even); - printk("vdma%d.base_odd: 0x%08x\n", which,vdma->base_odd); - printk("vdma%d.prot_addr: 0x%08x\n", which,vdma->prot_addr); - printk("vdma%d.base_page: 0x%08x\n", which,vdma->base_page); - printk("vdma%d.pitch: 0x%08x\n", which,vdma->pitch); - printk("vdma%d.num_line_byte: 0x%08x\n", which,vdma->num_line_byte); -*/ -} - -static int calculate_video_dma_grab_packed(struct saa7146_dev* dev, struct saa7146_buf *buf) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_video_dma vdma1; - - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); - - int width = buf->fmt->width; - int height = buf->fmt->height; - int bytesperline = buf->fmt->bytesperline; - enum v4l2_field field = buf->fmt->field; - - int depth = sfmt->depth; - - DEB_CAP("[size=%dx%d,fields=%s]\n", - width, height, v4l2_field_names[field]); - - if( bytesperline != 0) { - vdma1.pitch = bytesperline*2; - } else { - vdma1.pitch = (width*depth*2)/8; - } - vdma1.num_line_byte = ((vv->standard->v_field<<16) + vv->standard->h_pixels); - vdma1.base_page = buf->pt[0].dma | ME1 | sfmt->swap; - - if( 0 != vv->vflip ) { - vdma1.prot_addr = buf->pt[0].offset; - vdma1.base_even = buf->pt[0].offset+(vdma1.pitch/2)*height; - vdma1.base_odd = vdma1.base_even - (vdma1.pitch/2); - } else { - vdma1.base_even = buf->pt[0].offset; - vdma1.base_odd = vdma1.base_even + (vdma1.pitch/2); - vdma1.prot_addr = buf->pt[0].offset+(vdma1.pitch/2)*height; - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - if ( vv->last_field == V4L2_FIELD_TOP ) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - - if( 0 != vv->vflip ) { - vdma1.pitch *= -1; - } - - saa7146_write_out_dma(dev, 1, &vdma1); - return 0; -} - -static int calc_planar_422(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3) -{ - int height = buf->fmt->height; - int width = buf->fmt->width; - - vdma2->pitch = width; - vdma3->pitch = width; - - /* fixme: look at bytesperline! */ - - if( 0 != vv->vflip ) { - vdma2->prot_addr = buf->pt[1].offset; - vdma2->base_even = ((vdma2->pitch/2)*height)+buf->pt[1].offset; - vdma2->base_odd = vdma2->base_even - (vdma2->pitch/2); - - vdma3->prot_addr = buf->pt[2].offset; - vdma3->base_even = ((vdma3->pitch/2)*height)+buf->pt[2].offset; - vdma3->base_odd = vdma3->base_even - (vdma3->pitch/2); - } else { - vdma3->base_even = buf->pt[2].offset; - vdma3->base_odd = vdma3->base_even + (vdma3->pitch/2); - vdma3->prot_addr = (vdma3->pitch/2)*height+buf->pt[2].offset; - - vdma2->base_even = buf->pt[1].offset; - vdma2->base_odd = vdma2->base_even + (vdma2->pitch/2); - vdma2->prot_addr = (vdma2->pitch/2)*height+buf->pt[1].offset; - } - - return 0; -} - -static int calc_planar_420(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3) -{ - int height = buf->fmt->height; - int width = buf->fmt->width; - - vdma2->pitch = width/2; - vdma3->pitch = width/2; - - if( 0 != vv->vflip ) { - vdma2->prot_addr = buf->pt[2].offset; - vdma2->base_even = ((vdma2->pitch/2)*height)+buf->pt[2].offset; - vdma2->base_odd = vdma2->base_even - (vdma2->pitch/2); - - vdma3->prot_addr = buf->pt[1].offset; - vdma3->base_even = ((vdma3->pitch/2)*height)+buf->pt[1].offset; - vdma3->base_odd = vdma3->base_even - (vdma3->pitch/2); - - } else { - vdma3->base_even = buf->pt[2].offset; - vdma3->base_odd = vdma3->base_even + (vdma3->pitch); - vdma3->prot_addr = (vdma3->pitch/2)*height+buf->pt[2].offset; - - vdma2->base_even = buf->pt[1].offset; - vdma2->base_odd = vdma2->base_even + (vdma2->pitch); - vdma2->prot_addr = (vdma2->pitch/2)*height+buf->pt[1].offset; - } - return 0; -} - -static int calculate_video_dma_grab_planar(struct saa7146_dev* dev, struct saa7146_buf *buf) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_video_dma vdma1; - struct saa7146_video_dma vdma2; - struct saa7146_video_dma vdma3; - - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); - - int width = buf->fmt->width; - int height = buf->fmt->height; - enum v4l2_field field = buf->fmt->field; - - BUG_ON(0 == buf->pt[0].dma); - BUG_ON(0 == buf->pt[1].dma); - BUG_ON(0 == buf->pt[2].dma); - - DEB_CAP("[size=%dx%d,fields=%s]\n", - width, height, v4l2_field_names[field]); - - /* fixme: look at bytesperline! */ - - /* fixme: what happens for user space buffers here?. The offsets are - most likely wrong, this version here only works for page-aligned - buffers, modifications to the pagetable-functions are necessary...*/ - - vdma1.pitch = width*2; - vdma1.num_line_byte = ((vv->standard->v_field<<16) + vv->standard->h_pixels); - vdma1.base_page = buf->pt[0].dma | ME1; - - if( 0 != vv->vflip ) { - vdma1.prot_addr = buf->pt[0].offset; - vdma1.base_even = ((vdma1.pitch/2)*height)+buf->pt[0].offset; - vdma1.base_odd = vdma1.base_even - (vdma1.pitch/2); - } else { - vdma1.base_even = buf->pt[0].offset; - vdma1.base_odd = vdma1.base_even + (vdma1.pitch/2); - vdma1.prot_addr = (vdma1.pitch/2)*height+buf->pt[0].offset; - } - - vdma2.num_line_byte = 0; /* unused */ - vdma2.base_page = buf->pt[1].dma | ME1; - - vdma3.num_line_byte = 0; /* unused */ - vdma3.base_page = buf->pt[2].dma | ME1; - - switch( sfmt->depth ) { - case 12: { - calc_planar_420(vv,buf,&vdma2,&vdma3); - break; - } - case 16: { - calc_planar_422(vv,buf,&vdma2,&vdma3); - break; - } - default: { - return -1; - } - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - vdma2.base_odd = vdma2.prot_addr; - vdma2.pitch /= 2; - vdma3.base_odd = vdma3.prot_addr; - vdma3.pitch /= 2; - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - vdma2.base_odd = vdma2.prot_addr; - vdma2.pitch /= 2; - vdma3.base_odd = vdma3.prot_addr; - vdma3.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - vdma2.base_odd = vdma2.base_even; - vdma2.base_even = vdma2.prot_addr; - vdma2.pitch /= 2; - vdma3.base_odd = vdma3.base_even; - vdma3.base_even = vdma3.prot_addr; - vdma3.pitch /= 2; - } - - if( 0 != vv->vflip ) { - vdma1.pitch *= -1; - vdma2.pitch *= -1; - vdma3.pitch *= -1; - } - - saa7146_write_out_dma(dev, 1, &vdma1); - if( (sfmt->flags & FORMAT_BYTE_SWAP) != 0 ) { - saa7146_write_out_dma(dev, 3, &vdma2); - saa7146_write_out_dma(dev, 2, &vdma3); - } else { - saa7146_write_out_dma(dev, 2, &vdma2); - saa7146_write_out_dma(dev, 3, &vdma3); - } - return 0; -} - -static void program_capture_engine(struct saa7146_dev *dev, int planar) -{ - struct saa7146_vv *vv = dev->vv_data; - int count = 0; - - unsigned long e_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_E_FID_A : CMD_E_FID_B; - unsigned long o_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_O_FID_A : CMD_O_FID_B; - - /* wait for o_fid_a/b / e_fid_a/b toggle only if rps register 0 is not set*/ - WRITE_RPS0(CMD_PAUSE | CMD_OAN | CMD_SIG0 | o_wait); - WRITE_RPS0(CMD_PAUSE | CMD_OAN | CMD_SIG0 | e_wait); - - /* set rps register 0 */ - WRITE_RPS0(CMD_WR_REG | (1 << 8) | (MC2/4)); - WRITE_RPS0(MASK_27 | MASK_11); - - /* turn on video-dma1 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_06 | MASK_22); /* => mask */ - WRITE_RPS0(MASK_06 | MASK_22); /* => values */ - if( 0 != planar ) { - /* turn on video-dma2 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_05 | MASK_21); /* => mask */ - WRITE_RPS0(MASK_05 | MASK_21); /* => values */ - - /* turn on video-dma3 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_04 | MASK_20); /* => mask */ - WRITE_RPS0(MASK_04 | MASK_20); /* => values */ - } - - /* wait for o_fid_a/b / e_fid_a/b toggle */ - if ( vv->last_field == V4L2_FIELD_INTERLACED ) { - WRITE_RPS0(CMD_PAUSE | o_wait); - WRITE_RPS0(CMD_PAUSE | e_wait); - } else if ( vv->last_field == V4L2_FIELD_TOP ) { - WRITE_RPS0(CMD_PAUSE | (vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? MASK_10 : MASK_09)); - WRITE_RPS0(CMD_PAUSE | o_wait); - } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) { - WRITE_RPS0(CMD_PAUSE | (vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? MASK_10 : MASK_09)); - WRITE_RPS0(CMD_PAUSE | e_wait); - } - - /* turn off video-dma1 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_22 | MASK_06); /* => mask */ - WRITE_RPS0(MASK_22); /* => values */ - if( 0 != planar ) { - /* turn off video-dma2 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_05 | MASK_21); /* => mask */ - WRITE_RPS0(MASK_21); /* => values */ - - /* turn off video-dma3 */ - WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS0(MASK_04 | MASK_20); /* => mask */ - WRITE_RPS0(MASK_20); /* => values */ - } - - /* generate interrupt */ - WRITE_RPS0(CMD_INTERRUPT); - - /* stop */ - WRITE_RPS0(CMD_STOP); -} - -void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next) -{ - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); - struct saa7146_vv *vv = dev->vv_data; - u32 vdma1_prot_addr; - - DEB_CAP("buf:%p, next:%p\n", buf, next); - - vdma1_prot_addr = saa7146_read(dev, PROT_ADDR1); - if( 0 == vdma1_prot_addr ) { - /* clear out beginning of streaming bit (rps register 0)*/ - DEB_CAP("forcing sync to new frame\n"); - saa7146_write(dev, MC2, MASK_27 ); - } - - saa7146_set_window(dev, buf->fmt->width, buf->fmt->height, buf->fmt->field); - saa7146_set_output_format(dev, sfmt->trans); - saa7146_disable_clipping(dev); - - if ( vv->last_field == V4L2_FIELD_INTERLACED ) { - } else if ( vv->last_field == V4L2_FIELD_TOP ) { - vv->last_field = V4L2_FIELD_BOTTOM; - } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) { - vv->last_field = V4L2_FIELD_TOP; - } - - if( 0 != IS_PLANAR(sfmt->trans)) { - calculate_video_dma_grab_planar(dev, buf); - program_capture_engine(dev,1); - } else { - calculate_video_dma_grab_packed(dev, buf); - program_capture_engine(dev,0); - } - -/* - printk("vdma%d.base_even: 0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1)); - printk("vdma%d.base_odd: 0x%08x\n", 1,saa7146_read(dev,BASE_ODD1)); - printk("vdma%d.prot_addr: 0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1)); - printk("vdma%d.base_page: 0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1)); - printk("vdma%d.pitch: 0x%08x\n", 1,saa7146_read(dev,PITCH1)); - printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1)); - printk("vdma%d => vptr : 0x%08x\n", 1,saa7146_read(dev,PCI_VDP1)); -*/ - - /* write the address of the rps-program */ - saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle); - - /* turn on rps */ - saa7146_write(dev, MC1, (MASK_12 | MASK_28)); -} diff --git a/drivers/media/common/saa7146/saa7146_i2c.c b/drivers/media/common/saa7146/saa7146_i2c.c deleted file mode 100644 index df9ebe2a168c..000000000000 --- a/drivers/media/common/saa7146/saa7146_i2c.c +++ /dev/null @@ -1,421 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <media/drv-intf/saa7146_vv.h> - -static u32 saa7146_i2c_func(struct i2c_adapter *adapter) -{ - /* DEB_I2C("'%s'\n", adapter->name); */ - - return I2C_FUNC_I2C - | I2C_FUNC_SMBUS_QUICK - | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE - | I2C_FUNC_SMBUS_READ_BYTE_DATA | I2C_FUNC_SMBUS_WRITE_BYTE_DATA; -} - -/* this function returns the status-register of our i2c-device */ -static inline u32 saa7146_i2c_status(struct saa7146_dev *dev) -{ - u32 iicsta = saa7146_read(dev, I2C_STATUS); - /* DEB_I2C("status: 0x%08x\n", iicsta); */ - return iicsta; -} - -/* this function runs through the i2c-messages and prepares the data to be - sent through the saa7146. have a look at the specifications p. 122 ff - to understand this. it returns the number of u32s to send, or -1 - in case of an error. */ -static int saa7146_i2c_msg_prepare(const struct i2c_msg *m, int num, __le32 *op) -{ - int h1, h2; - int i, j, addr; - int mem = 0, op_count = 0; - - /* first determine size of needed memory */ - for(i = 0; i < num; i++) { - mem += m[i].len + 1; - } - - /* worst case: we need one u32 for three bytes to be send - plus one extra byte to address the device */ - mem = 1 + ((mem-1) / 3); - - /* we assume that op points to a memory of at least - * SAA7146_I2C_MEM bytes size. if we exceed this limit... - */ - if ((4 * mem) > SAA7146_I2C_MEM) { - /* DEB_I2C("cannot prepare i2c-message\n"); */ - return -ENOMEM; - } - - /* be careful: clear out the i2c-mem first */ - memset(op,0,sizeof(__le32)*mem); - - /* loop through all messages */ - for(i = 0; i < num; i++) { - - addr = i2c_8bit_addr_from_msg(&m[i]); - h1 = op_count/3; h2 = op_count%3; - op[h1] |= cpu_to_le32( (u8)addr << ((3-h2)*8)); - op[h1] |= cpu_to_le32(SAA7146_I2C_START << ((3-h2)*2)); - op_count++; - - /* loop through all bytes of message i */ - for(j = 0; j < m[i].len; j++) { - /* insert the data bytes */ - h1 = op_count/3; h2 = op_count%3; - op[h1] |= cpu_to_le32( (u32)((u8)m[i].buf[j]) << ((3-h2)*8)); - op[h1] |= cpu_to_le32( SAA7146_I2C_CONT << ((3-h2)*2)); - op_count++; - } - - } - - /* have a look at the last byte inserted: - if it was: ...CONT change it to ...STOP */ - h1 = (op_count-1)/3; h2 = (op_count-1)%3; - if ( SAA7146_I2C_CONT == (0x3 & (le32_to_cpu(op[h1]) >> ((3-h2)*2))) ) { - op[h1] &= ~cpu_to_le32(0x2 << ((3-h2)*2)); - op[h1] |= cpu_to_le32(SAA7146_I2C_STOP << ((3-h2)*2)); - } - - /* return the number of u32s to send */ - return mem; -} - -/* this functions loops through all i2c-messages. normally, it should determine - which bytes were read through the adapter and write them back to the corresponding - i2c-message. but instead, we simply write back all bytes. - fixme: this could be improved. */ -static int saa7146_i2c_msg_cleanup(const struct i2c_msg *m, int num, __le32 *op) -{ - int i, j; - int op_count = 0; - - /* loop through all messages */ - for(i = 0; i < num; i++) { - - op_count++; - - /* loop through all bytes of message i */ - for(j = 0; j < m[i].len; j++) { - /* write back all bytes that could have been read */ - m[i].buf[j] = (le32_to_cpu(op[op_count/3]) >> ((3-(op_count%3))*8)); - op_count++; - } - } - - return 0; -} - -/* this functions resets the i2c-device and returns 0 if everything was fine, otherwise -1 */ -static int saa7146_i2c_reset(struct saa7146_dev *dev) -{ - /* get current status */ - u32 status = saa7146_i2c_status(dev); - - /* clear registers for sure */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, I2C_TRANSFER, 0); - - /* check if any operation is still in progress */ - if ( 0 != ( status & SAA7146_I2C_BUSY) ) { - - /* yes, kill ongoing operation */ - DEB_I2C("busy_state detected\n"); - - /* set "ABORT-OPERATION"-bit (bit 7)*/ - saa7146_write(dev, I2C_STATUS, (dev->i2c_bitrate | MASK_07)); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - - /* clear all error-bits pending; this is needed because p.123, note 1 */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - } - - /* check if any error is (still) present. (this can be necessary because p.123, note 1) */ - status = saa7146_i2c_status(dev); - - if ( dev->i2c_bitrate != status ) { - - DEB_I2C("error_state detected. status:0x%08x\n", status); - - /* Repeat the abort operation. This seems to be necessary - after serious protocol errors caused by e.g. the SAA7740 */ - saa7146_write(dev, I2C_STATUS, (dev->i2c_bitrate | MASK_07)); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - - /* clear all error-bits pending */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - - /* the data sheet says it might be necessary to clear the status - twice after an abort */ - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - msleep(SAA7146_I2C_DELAY); - } - - /* if any error is still present, a fatal error has occurred ... */ - status = saa7146_i2c_status(dev); - if ( dev->i2c_bitrate != status ) { - DEB_I2C("fatal error. status:0x%08x\n", status); - return -1; - } - - return 0; -} - -/* this functions writes out the data-byte 'dword' to the i2c-device. - it returns 0 if ok, -1 if the transfer failed, -2 if the transfer - failed badly (e.g. address error) */ -static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int short_delay) -{ - u32 status = 0, mc2 = 0; - int trial = 0; - unsigned long timeout; - - /* write out i2c-command */ - DEB_I2C("before: 0x%08x (status: 0x%08x), %d\n", - *dword, saa7146_read(dev, I2C_STATUS), dev->i2c_op); - - if( 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags)) { - - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, I2C_TRANSFER, le32_to_cpu(*dword)); - - dev->i2c_op = 1; - SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17); - SAA7146_IER_ENABLE(dev, MASK_16|MASK_17); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - - timeout = HZ/100 + 1; /* 10ms */ - timeout = wait_event_interruptible_timeout(dev->i2c_wq, dev->i2c_op == 0, timeout); - if (timeout == -ERESTARTSYS || dev->i2c_op) { - SAA7146_IER_DISABLE(dev, MASK_16|MASK_17); - SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17); - if (timeout == -ERESTARTSYS) - /* a signal arrived */ - return -ERESTARTSYS; - - pr_warn("%s %s [irq]: timed out waiting for end of xfer\n", - dev->name, __func__); - return -EIO; - } - status = saa7146_read(dev, I2C_STATUS); - } else { - saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate); - saa7146_write(dev, I2C_TRANSFER, le32_to_cpu(*dword)); - saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - - /* do not poll for i2c-status before upload is complete */ - timeout = jiffies + HZ/100 + 1; /* 10ms */ - while(1) { - mc2 = (saa7146_read(dev, MC2) & 0x1); - if( 0 != mc2 ) { - break; - } - if (time_after(jiffies,timeout)) { - pr_warn("%s %s: timed out waiting for MC2\n", - dev->name, __func__); - return -EIO; - } - } - /* wait until we get a transfer done or error */ - timeout = jiffies + HZ/100 + 1; /* 10ms */ - /* first read usually delivers bogus results... */ - saa7146_i2c_status(dev); - while(1) { - status = saa7146_i2c_status(dev); - if ((status & 0x3) != 1) - break; - if (time_after(jiffies,timeout)) { - /* this is normal when probing the bus - * (no answer from nonexisistant device...) - */ - pr_warn("%s %s [poll]: timed out waiting for end of xfer\n", - dev->name, __func__); - return -EIO; - } - if (++trial < 50 && short_delay) - udelay(10); - else - msleep(1); - } - } - - /* give a detailed status report */ - if ( 0 != (status & (SAA7146_I2C_SPERR | SAA7146_I2C_APERR | - SAA7146_I2C_DTERR | SAA7146_I2C_DRERR | - SAA7146_I2C_AL | SAA7146_I2C_ERR | - SAA7146_I2C_BUSY)) ) { - - if ( 0 == (status & SAA7146_I2C_ERR) || - 0 == (status & SAA7146_I2C_BUSY) ) { - /* it may take some time until ERR goes high - ignore */ - DEB_I2C("unexpected i2c status %04x\n", status); - } - if( 0 != (status & SAA7146_I2C_SPERR) ) { - DEB_I2C("error due to invalid start/stop condition\n"); - } - if( 0 != (status & SAA7146_I2C_DTERR) ) { - DEB_I2C("error in data transmission\n"); - } - if( 0 != (status & SAA7146_I2C_DRERR) ) { - DEB_I2C("error when receiving data\n"); - } - if( 0 != (status & SAA7146_I2C_AL) ) { - DEB_I2C("error because arbitration lost\n"); - } - - /* we handle address-errors here */ - if( 0 != (status & SAA7146_I2C_APERR) ) { - DEB_I2C("error in address phase\n"); - return -EREMOTEIO; - } - - return -EIO; - } - - /* read back data, just in case we were reading ... */ - *dword = cpu_to_le32(saa7146_read(dev, I2C_TRANSFER)); - - DEB_I2C("after: 0x%08x\n", *dword); - return 0; -} - -static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *msgs, int num, int retries) -{ - int i = 0, count = 0; - __le32 *buffer = dev->d_i2c.cpu_addr; - int err = 0; - int short_delay = 0; - - if (mutex_lock_interruptible(&dev->i2c_lock)) - return -ERESTARTSYS; - - for(i=0;i<num;i++) { - DEB_I2C("msg:%d/%d\n", i+1, num); - } - - /* prepare the message(s), get number of u32s to transfer */ - count = saa7146_i2c_msg_prepare(msgs, num, buffer); - if ( 0 > count ) { - err = -EIO; - goto out; - } - - if ( count > 3 || 0 != (SAA7146_I2C_SHORT_DELAY & dev->ext->flags) ) - short_delay = 1; - - do { - /* reset the i2c-device if necessary */ - err = saa7146_i2c_reset(dev); - if ( 0 > err ) { - DEB_I2C("could not reset i2c-device\n"); - goto out; - } - - /* write out the u32s one after another */ - for(i = 0; i < count; i++) { - err = saa7146_i2c_writeout(dev, &buffer[i], short_delay); - if ( 0 != err) { - /* this one is unsatisfying: some i2c slaves on some - dvb cards don't acknowledge correctly, so the saa7146 - thinks that an address error occurred. in that case, the - transaction should be retrying, even if an address error - occurred. analog saa7146 based cards extensively rely on - i2c address probing, however, and address errors indicate that a - device is really *not* there. retrying in that case - increases the time the device needs to probe greatly, so - it should be avoided. So we bail out in irq mode after an - address error and trust the saa7146 address error detection. */ - if (-EREMOTEIO == err && 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags)) - goto out; - DEB_I2C("error while sending message(s). starting again\n"); - break; - } - } - if( 0 == err ) { - err = num; - break; - } - - /* delay a bit before retrying */ - msleep(10); - - } while (err != num && retries--); - - /* quit if any error occurred */ - if (err != num) - goto out; - - /* if any things had to be read, get the results */ - if ( 0 != saa7146_i2c_msg_cleanup(msgs, num, buffer)) { - DEB_I2C("could not cleanup i2c-message\n"); - err = -EIO; - goto out; - } - - /* return the number of delivered messages */ - DEB_I2C("transmission successful. (msg:%d)\n", err); -out: - /* another bug in revision 0: the i2c-registers get uploaded randomly by other - uploads, so we better clear them out before continuing */ - if( 0 == dev->revision ) { - __le32 zero = 0; - saa7146_i2c_reset(dev); - if( 0 != saa7146_i2c_writeout(dev, &zero, short_delay)) { - pr_info("revision 0 error. this should never happen\n"); - } - } - - mutex_unlock(&dev->i2c_lock); - return err; -} - -/* utility functions */ -static int saa7146_i2c_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, int num) -{ - struct v4l2_device *v4l2_dev = i2c_get_adapdata(adapter); - struct saa7146_dev *dev = to_saa7146_dev(v4l2_dev); - - /* use helper function to transfer data */ - return saa7146_i2c_transfer(dev, msg, num, adapter->retries); -} - - -/*****************************************************************************/ -/* i2c-adapter helper functions */ - -/* exported algorithm data */ -static const struct i2c_algorithm saa7146_algo = { - .master_xfer = saa7146_i2c_xfer, - .functionality = saa7146_i2c_func, -}; - -int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c_adapter, u32 bitrate) -{ - DEB_EE("bitrate: 0x%08x\n", bitrate); - - /* enable i2c-port pins */ - saa7146_write(dev, MC1, (MASK_08 | MASK_24)); - - dev->i2c_bitrate = bitrate; - saa7146_i2c_reset(dev); - - if (i2c_adapter) { - i2c_set_adapdata(i2c_adapter, &dev->v4l2_dev); - i2c_adapter->dev.parent = &dev->pci->dev; - i2c_adapter->algo = &saa7146_algo; - i2c_adapter->algo_data = NULL; - i2c_adapter->timeout = SAA7146_I2C_TIMEOUT; - i2c_adapter->retries = SAA7146_I2C_RETRIES; - } - - return 0; -} diff --git a/drivers/media/common/saa7146/saa7146_vbi.c b/drivers/media/common/saa7146/saa7146_vbi.c deleted file mode 100644 index bd442b984423..000000000000 --- a/drivers/media/common/saa7146/saa7146_vbi.c +++ /dev/null @@ -1,498 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <media/drv-intf/saa7146_vv.h> - -static int vbi_pixel_to_capture = 720 * 2; - -static int vbi_workaround(struct saa7146_dev *dev) -{ - struct saa7146_vv *vv = dev->vv_data; - - u32 *cpu; - dma_addr_t dma_addr; - - int count = 0; - int i; - - DECLARE_WAITQUEUE(wait, current); - - DEB_VBI("dev:%p\n", dev); - - /* once again, a bug in the saa7146: the brs acquisition - is buggy and especially the BXO-counter does not work - as specified. there is this workaround, but please - don't let me explain it. ;-) */ - - cpu = dma_alloc_coherent(&dev->pci->dev, 4096, &dma_addr, GFP_KERNEL); - if (NULL == cpu) - return -ENOMEM; - - /* setup some basic programming, just for the workaround */ - saa7146_write(dev, BASE_EVEN3, dma_addr); - saa7146_write(dev, BASE_ODD3, dma_addr+vbi_pixel_to_capture); - saa7146_write(dev, PROT_ADDR3, dma_addr+4096); - saa7146_write(dev, PITCH3, vbi_pixel_to_capture); - saa7146_write(dev, BASE_PAGE3, 0x0); - saa7146_write(dev, NUM_LINE_BYTE3, (2<<16)|((vbi_pixel_to_capture)<<0)); - saa7146_write(dev, MC2, MASK_04|MASK_20); - - /* load brs-control register */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); - /* BXO = 1h, BRS to outbound */ - WRITE_RPS1(0xc000008c); - /* wait for vbi_a or vbi_b*/ - if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { - DEB_D("...using port b\n"); - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_E_FID_B); - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_O_FID_B); -/* - WRITE_RPS1(CMD_PAUSE | MASK_09); -*/ - } else { - DEB_D("...using port a\n"); - WRITE_RPS1(CMD_PAUSE | MASK_10); - } - /* upload brs */ - WRITE_RPS1(CMD_UPLOAD | MASK_08); - /* load brs-control register */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); - /* BYO = 1, BXO = NQBIL (=1728 for PAL, for NTSC this is 858*2) - NumByte3 (=1440) = 288 */ - WRITE_RPS1(((1728-(vbi_pixel_to_capture)) << 7) | MASK_19); - /* wait for brs_done */ - WRITE_RPS1(CMD_PAUSE | MASK_08); - /* upload brs */ - WRITE_RPS1(CMD_UPLOAD | MASK_08); - /* load video-dma3 NumLines3 and NumBytes3 */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (NUM_LINE_BYTE3/4)); - /* dev->vbi_count*2 lines, 720 pixel (= 1440 Bytes) */ - WRITE_RPS1((2 << 16) | (vbi_pixel_to_capture)); - /* load brs-control register */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4)); - /* Set BRS right: note: this is an experimental value for BXO (=> PAL!) */ - WRITE_RPS1((540 << 7) | (5 << 19)); // 5 == vbi_start - /* wait for brs_done */ - WRITE_RPS1(CMD_PAUSE | MASK_08); - /* upload brs and video-dma3*/ - WRITE_RPS1(CMD_UPLOAD | MASK_08 | MASK_04); - /* load mc2 register: enable dma3 */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC1/4)); - WRITE_RPS1(MASK_20 | MASK_04); - /* generate interrupt */ - WRITE_RPS1(CMD_INTERRUPT); - /* stop rps1 */ - WRITE_RPS1(CMD_STOP); - - /* we have to do the workaround twice to be sure that - everything is ok */ - for(i = 0; i < 2; i++) { - - /* indicate to the irq handler that we do the workaround */ - saa7146_write(dev, MC2, MASK_31|MASK_15); - - saa7146_write(dev, NUM_LINE_BYTE3, (1<<16)|(2<<0)); - saa7146_write(dev, MC2, MASK_04|MASK_20); - - /* enable rps1 irqs */ - SAA7146_IER_ENABLE(dev,MASK_28); - - /* prepare to wait to be woken up by the irq-handler */ - add_wait_queue(&vv->vbi_wq, &wait); - set_current_state(TASK_INTERRUPTIBLE); - - /* start rps1 to enable workaround */ - saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle); - saa7146_write(dev, MC1, (MASK_13 | MASK_29)); - - schedule(); - - DEB_VBI("brs bug workaround %d/1\n", i); - - remove_wait_queue(&vv->vbi_wq, &wait); - __set_current_state(TASK_RUNNING); - - /* disable rps1 irqs */ - SAA7146_IER_DISABLE(dev,MASK_28); - - /* stop video-dma3 */ - saa7146_write(dev, MC1, MASK_20); - - if(signal_pending(current)) { - - DEB_VBI("aborted (rps:0x%08x)\n", - saa7146_read(dev, RPS_ADDR1)); - - /* stop rps1 for sure */ - saa7146_write(dev, MC1, MASK_29); - - dma_free_coherent(&dev->pci->dev, 4096, cpu, dma_addr); - return -EINTR; - } - } - - dma_free_coherent(&dev->pci->dev, 4096, cpu, dma_addr); - return 0; -} - -static void saa7146_set_vbi_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next) -{ - struct saa7146_vv *vv = dev->vv_data; - - struct saa7146_video_dma vdma3; - - int count = 0; - unsigned long e_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_E_FID_A : CMD_E_FID_B; - unsigned long o_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_O_FID_A : CMD_O_FID_B; - -/* - vdma3.base_even = 0xc8000000+2560*70; - vdma3.base_odd = 0xc8000000; - vdma3.prot_addr = 0xc8000000+2560*164; - vdma3.pitch = 2560; - vdma3.base_page = 0; - vdma3.num_line_byte = (64<<16)|((vbi_pixel_to_capture)<<0); // set above! -*/ - vdma3.base_even = buf->pt[2].offset; - vdma3.base_odd = buf->pt[2].offset + 16 * vbi_pixel_to_capture; - vdma3.prot_addr = buf->pt[2].offset + 16 * 2 * vbi_pixel_to_capture; - vdma3.pitch = vbi_pixel_to_capture; - vdma3.base_page = buf->pt[2].dma | ME1; - vdma3.num_line_byte = (16 << 16) | vbi_pixel_to_capture; - - saa7146_write_out_dma(dev, 3, &vdma3); - - /* write beginning of rps-program */ - count = 0; - - /* wait for o_fid_a/b / e_fid_a/b toggle only if bit 1 is not set */ - - /* we don't wait here for the first field anymore. this is different from the video - capture and might cause that the first buffer is only half filled (with only - one field). but since this is some sort of streaming data, this is not that negative. - but by doing this, we can use the whole engine from videobuf-dma-sg.c... */ - -/* - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | e_wait); - WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | o_wait); -*/ - /* set bit 1 */ - WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC2/4)); - WRITE_RPS1(MASK_28 | MASK_12); - - /* turn on video-dma3 */ - WRITE_RPS1(CMD_WR_REG_MASK | (MC1/4)); - WRITE_RPS1(MASK_04 | MASK_20); /* => mask */ - WRITE_RPS1(MASK_04 | MASK_20); /* => values */ - - /* wait for o_fid_a/b / e_fid_a/b toggle */ - WRITE_RPS1(CMD_PAUSE | o_wait); - WRITE_RPS1(CMD_PAUSE | e_wait); - - /* generate interrupt */ - WRITE_RPS1(CMD_INTERRUPT); - - /* stop */ - WRITE_RPS1(CMD_STOP); - - /* enable rps1 irqs */ - SAA7146_IER_ENABLE(dev, MASK_28); - - /* write the address of the rps-program */ - saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle); - - /* turn on rps */ - saa7146_write(dev, MC1, (MASK_13 | MASK_29)); -} - -static int buffer_activate(struct saa7146_dev *dev, - struct saa7146_buf *buf, - struct saa7146_buf *next) -{ - struct saa7146_vv *vv = dev->vv_data; - buf->vb.state = VIDEOBUF_ACTIVE; - - DEB_VBI("dev:%p, buf:%p, next:%p\n", dev, buf, next); - saa7146_set_vbi_capture(dev,buf,next); - - mod_timer(&vv->vbi_dmaq.timeout, jiffies+BUFFER_TIMEOUT); - return 0; -} - -static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,enum v4l2_field field) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - int err = 0; - int lines, llength, size; - - lines = 16 * 2 ; /* 2 fields */ - llength = vbi_pixel_to_capture; - size = lines * llength; - - DEB_VBI("vb:%p\n", vb); - - if (0 != buf->vb.baddr && buf->vb.bsize < size) { - DEB_VBI("size mismatch\n"); - return -EINVAL; - } - - if (buf->vb.size != size) - saa7146_dma_free(dev,q,buf); - - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - - buf->vb.width = llength; - buf->vb.height = lines; - buf->vb.size = size; - buf->vb.field = field; // FIXME: check this - - saa7146_pgtable_free(dev->pci, &buf->pt[2]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); - - err = videobuf_iolock(q,&buf->vb, NULL); - if (err) - goto oops; - err = saa7146_pgtable_build_single(dev->pci, &buf->pt[2], - dma->sglist, dma->sglen); - if (0 != err) - return err; - } - buf->vb.state = VIDEOBUF_PREPARED; - buf->activate = buffer_activate; - - return 0; - - oops: - DEB_VBI("error out\n"); - saa7146_dma_free(dev,q,buf); - - return err; -} - -static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) -{ - int llength,lines; - - lines = 16 * 2 ; /* 2 fields */ - llength = vbi_pixel_to_capture; - - *size = lines * llength; - *count = 2; - - DEB_VBI("count:%d, size:%d\n", *count, *size); - - return 0; -} - -static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_VBI("vb:%p\n", vb); - saa7146_buffer_queue(dev, &vv->vbi_dmaq, buf); -} - -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_VBI("vb:%p\n", vb); - saa7146_dma_free(dev,q,buf); -} - -static const struct videobuf_queue_ops vbi_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, -}; - -/* ------------------------------------------------------------------ */ - -static void vbi_stop(struct saa7146_fh *fh, struct file *file) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - unsigned long flags; - DEB_VBI("dev:%p, fh:%p\n", dev, fh); - - spin_lock_irqsave(&dev->slock,flags); - - /* disable rps1 */ - saa7146_write(dev, MC1, MASK_29); - - /* disable rps1 irqs */ - SAA7146_IER_DISABLE(dev, MASK_28); - - /* shut down dma 3 transfers */ - saa7146_write(dev, MC1, MASK_20); - - if (vv->vbi_dmaq.curr) - saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE); - - videobuf_queue_cancel(&fh->vbi_q); - - vv->vbi_streaming = NULL; - - del_timer(&vv->vbi_dmaq.timeout); - del_timer(&vv->vbi_read_timeout); - - spin_unlock_irqrestore(&dev->slock, flags); -} - -static void vbi_read_timeout(struct timer_list *t) -{ - struct saa7146_vv *vv = from_timer(vv, t, vbi_read_timeout); - struct file *file = vv->vbi_read_timeout_file; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - - DEB_VBI("dev:%p, fh:%p\n", dev, fh); - - vbi_stop(fh, file); -} - -static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv) -{ - DEB_VBI("dev:%p\n", dev); - - INIT_LIST_HEAD(&vv->vbi_dmaq.queue); - - timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0); - vv->vbi_dmaq.dev = dev; - - init_waitqueue_head(&vv->vbi_wq); -} - -static int vbi_open(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = fh->dev->vv_data; - - u32 arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); - int ret = 0; - - DEB_VBI("dev:%p, fh:%p\n", dev, fh); - - ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS); - if (0 == ret) { - DEB_S("cannot get vbi RESOURCE_DMA3_BRS resource\n"); - return -EBUSY; - } - - /* adjust arbitrition control for video dma 3 */ - arbtr_ctrl &= ~0x1f0000; - arbtr_ctrl |= 0x1d0000; - saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); - saa7146_write(dev, MC2, (MASK_04|MASK_20)); - - videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops, - &dev->pci->dev, &dev->slock, - V4L2_BUF_TYPE_VBI_CAPTURE, - V4L2_FIELD_SEQ_TB, // FIXME: does this really work? - sizeof(struct saa7146_buf), - file, &dev->v4l2_lock); - - vv->vbi_read_timeout.function = vbi_read_timeout; - vv->vbi_read_timeout_file = file; - - /* initialize the brs */ - if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { - saa7146_write(dev, BRS_CTRL, MASK_30|MASK_29 | (7 << 19)); - } else { - saa7146_write(dev, BRS_CTRL, 0x00000001); - - if (0 != (ret = vbi_workaround(dev))) { - DEB_VBI("vbi workaround failed!\n"); - /* return ret;*/ - } - } - - /* upload brs register */ - saa7146_write(dev, MC2, (MASK_08|MASK_24)); - return 0; -} - -static void vbi_close(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = dev->vv_data; - DEB_VBI("dev:%p, fh:%p\n", dev, fh); - - if( fh == vv->vbi_streaming ) { - vbi_stop(fh, file); - } - saa7146_res_free(fh, RESOURCE_DMA3_BRS); -} - -static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status) -{ - struct saa7146_vv *vv = dev->vv_data; - spin_lock(&dev->slock); - - if (vv->vbi_dmaq.curr) { - DEB_VBI("dev:%p, curr:%p\n", dev, vv->vbi_dmaq.curr); - /* this must be += 2, one count for each field */ - vv->vbi_fieldcount+=2; - vv->vbi_dmaq.curr->vb.field_count = vv->vbi_fieldcount; - saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE); - } else { - DEB_VBI("dev:%p\n", dev); - } - saa7146_buffer_next(dev, &vv->vbi_dmaq, 1); - - spin_unlock(&dev->slock); -} - -static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - ssize_t ret = 0; - - DEB_VBI("dev:%p, fh:%p\n", dev, fh); - - if( NULL == vv->vbi_streaming ) { - // fixme: check if dma3 is available - // fixme: activate vbi engine here if necessary. (really?) - vv->vbi_streaming = fh; - } - - if( fh != vv->vbi_streaming ) { - DEB_VBI("open %p is already using vbi capture\n", - vv->vbi_streaming); - return -EBUSY; - } - - mod_timer(&vv->vbi_read_timeout, jiffies+BUFFER_TIMEOUT); - ret = videobuf_read_stream(&fh->vbi_q, data, count, ppos, 1, - file->f_flags & O_NONBLOCK); -/* - printk("BASE_ODD3: 0x%08x\n", saa7146_read(dev, BASE_ODD3)); - printk("BASE_EVEN3: 0x%08x\n", saa7146_read(dev, BASE_EVEN3)); - printk("PROT_ADDR3: 0x%08x\n", saa7146_read(dev, PROT_ADDR3)); - printk("PITCH3: 0x%08x\n", saa7146_read(dev, PITCH3)); - printk("BASE_PAGE3: 0x%08x\n", saa7146_read(dev, BASE_PAGE3)); - printk("NUM_LINE_BYTE3: 0x%08x\n", saa7146_read(dev, NUM_LINE_BYTE3)); - printk("BRS_CTRL: 0x%08x\n", saa7146_read(dev, BRS_CTRL)); -*/ - return ret; -} - -const struct saa7146_use_ops saa7146_vbi_uops = { - .init = vbi_init, - .open = vbi_open, - .release = vbi_close, - .irq_done = vbi_irq_done, - .read = vbi_read, -}; diff --git a/drivers/media/common/saa7146/saa7146_video.c b/drivers/media/common/saa7146/saa7146_video.c deleted file mode 100644 index 2296765079a4..000000000000 --- a/drivers/media/common/saa7146/saa7146_video.c +++ /dev/null @@ -1,1286 +0,0 @@ -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <media/drv-intf/saa7146_vv.h> -#include <media/v4l2-event.h> -#include <media/v4l2-ctrls.h> -#include <linux/module.h> -#include <linux/kernel.h> - -static int max_memory = 32; - -module_param(max_memory, int, 0644); -MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: 32Mb)"); - -#define IS_CAPTURE_ACTIVE(fh) \ - (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh)) - -#define IS_OVERLAY_ACTIVE(fh) \ - (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh)) - -/* format descriptions for capture and preview */ -static struct saa7146_format formats[] = { - { - .pixelformat = V4L2_PIX_FMT_RGB332, - .trans = RGB08_COMPOSED, - .depth = 8, - .flags = 0, - }, { - .pixelformat = V4L2_PIX_FMT_RGB565, - .trans = RGB16_COMPOSED, - .depth = 16, - .flags = 0, - }, { - .pixelformat = V4L2_PIX_FMT_BGR24, - .trans = RGB24_COMPOSED, - .depth = 24, - .flags = 0, - }, { - .pixelformat = V4L2_PIX_FMT_BGR32, - .trans = RGB32_COMPOSED, - .depth = 32, - .flags = 0, - }, { - .pixelformat = V4L2_PIX_FMT_RGB32, - .trans = RGB32_COMPOSED, - .depth = 32, - .flags = 0, - .swap = 0x2, - }, { - .pixelformat = V4L2_PIX_FMT_GREY, - .trans = Y8, - .depth = 8, - .flags = 0, - }, { - .pixelformat = V4L2_PIX_FMT_YUV422P, - .trans = YUV422_DECOMPOSED, - .depth = 16, - .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR, - }, { - .pixelformat = V4L2_PIX_FMT_YVU420, - .trans = YUV420_DECOMPOSED, - .depth = 12, - .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR, - }, { - .pixelformat = V4L2_PIX_FMT_YUV420, - .trans = YUV420_DECOMPOSED, - .depth = 12, - .flags = FORMAT_IS_PLANAR, - }, { - .pixelformat = V4L2_PIX_FMT_UYVY, - .trans = YUV422_COMPOSED, - .depth = 16, - .flags = 0, - } -}; - -/* unfortunately, the saa7146 contains a bug which prevents it from doing on-the-fly byte swaps. - due to this, it's impossible to provide additional *packed* formats, which are simply byte swapped - (like V4L2_PIX_FMT_YUYV) ... 8-( */ - -struct saa7146_format* saa7146_format_by_fourcc(struct saa7146_dev *dev, int fourcc) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(formats); i++) { - if (formats[i].pixelformat == fourcc) { - return formats+i; - } - } - - DEB_D("unknown pixelformat:'%4.4s'\n", (char *)&fourcc); - return NULL; -} - -static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f); - -int saa7146_start_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct v4l2_format fmt; - int ret = 0, err = 0; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - /* check if we have overlay information */ - if (vv->ov.fh == NULL) { - DEB_D("no overlay data available. try S_FMT first.\n"); - return -EAGAIN; - } - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D("streaming capture is active\n"); - return -EBUSY; - } - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh == fh) { - DEB_D("overlay is already active\n"); - return 0; - } - DEB_D("overlay is already active in another open\n"); - return -EBUSY; - } - - if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) { - DEB_D("cannot get necessary overlay resources\n"); - return -EBUSY; - } - - fmt.fmt.win = vv->ov.win; - err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt); - if (0 != err) { - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return -EBUSY; - } - vv->ov.win = fmt.fmt.win; - - DEB_D("%dx%d+%d+%d 0x%08x field=%s\n", - vv->ov.win.w.width, vv->ov.win.w.height, - vv->ov.win.w.left, vv->ov.win.w.top, - vv->ov_fmt->pixelformat, v4l2_field_names[vv->ov.win.field]); - - if (0 != (ret = saa7146_enable_overlay(fh))) { - DEB_D("enabling overlay failed: %d\n", ret); - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return ret; - } - - vv->video_status = STATUS_OVERLAY; - vv->video_fh = fh; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_start_preview); - -int saa7146_stop_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D("streaming capture is active\n"); - return -EBUSY; - } - - /* check if overlay is running at all */ - if ((vv->video_status & STATUS_OVERLAY) == 0) { - DEB_D("no active overlay\n"); - return 0; - } - - if (vv->video_fh != fh) { - DEB_D("overlay is active, but in another open\n"); - return -EBUSY; - } - - vv->video_status = 0; - vv->video_fh = NULL; - - saa7146_disable_overlay(fh); - - saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_stop_preview); - -/********************************************************************************/ -/* common pagetable functions */ - -static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *buf) -{ - struct pci_dev *pci = dev->pci; - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - struct scatterlist *list = dma->sglist; - int length = dma->sglen; - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); - - DEB_EE("dev:%p, buf:%p, sg_len:%d\n", dev, buf, length); - - if( 0 != IS_PLANAR(sfmt->trans)) { - struct saa7146_pgtable *pt1 = &buf->pt[0]; - struct saa7146_pgtable *pt2 = &buf->pt[1]; - struct saa7146_pgtable *pt3 = &buf->pt[2]; - __le32 *ptr1, *ptr2, *ptr3; - __le32 fill; - - int size = buf->fmt->width*buf->fmt->height; - int i,p,m1,m2,m3,o1,o2; - - switch( sfmt->depth ) { - case 12: { - /* create some offsets inside the page table */ - m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; - m2 = ((size+(size/4)+PAGE_SIZE)/PAGE_SIZE)-1; - m3 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; - o1 = size%PAGE_SIZE; - o2 = (size+(size/4))%PAGE_SIZE; - DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n", - size, m1, m2, m3, o1, o2); - break; - } - case 16: { - /* create some offsets inside the page table */ - m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; - m2 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; - m3 = ((2*size+PAGE_SIZE)/PAGE_SIZE)-1; - o1 = size%PAGE_SIZE; - o2 = (size+(size/2))%PAGE_SIZE; - DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n", - size, m1, m2, m3, o1, o2); - break; - } - default: { - return -1; - } - } - - ptr1 = pt1->cpu; - ptr2 = pt2->cpu; - ptr3 = pt3->cpu; - - /* walk all pages, copy all page addresses to ptr1 */ - for (i = 0; i < length; i++, list++) { - for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr1++) - *ptr1 = cpu_to_le32(sg_dma_address(list) - list->offset); - } -/* - ptr1 = pt1->cpu; - for(j=0;j<40;j++) { - printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); - } -*/ - - /* if we have a user buffer, the first page may not be - aligned to a page boundary. */ - pt1->offset = dma->sglist->offset; - pt2->offset = pt1->offset+o1; - pt3->offset = pt1->offset+o2; - - /* create video-dma2 page table */ - ptr1 = pt1->cpu; - for(i = m1; i <= m2 ; i++, ptr2++) { - *ptr2 = ptr1[i]; - } - fill = *(ptr2-1); - for(;i<1024;i++,ptr2++) { - *ptr2 = fill; - } - /* create video-dma3 page table */ - ptr1 = pt1->cpu; - for(i = m2; i <= m3; i++,ptr3++) { - *ptr3 = ptr1[i]; - } - fill = *(ptr3-1); - for(;i<1024;i++,ptr3++) { - *ptr3 = fill; - } - /* finally: finish up video-dma1 page table */ - ptr1 = pt1->cpu+m1; - fill = pt1->cpu[m1]; - for(i=m1;i<1024;i++,ptr1++) { - *ptr1 = fill; - } -/* - ptr1 = pt1->cpu; - ptr2 = pt2->cpu; - ptr3 = pt3->cpu; - for(j=0;j<40;j++) { - printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); - } - for(j=0;j<40;j++) { - printk("ptr2 %d: 0x%08x\n",j,ptr2[j]); - } - for(j=0;j<40;j++) { - printk("ptr3 %d: 0x%08x\n",j,ptr3[j]); - } -*/ - } else { - struct saa7146_pgtable *pt = &buf->pt[0]; - return saa7146_pgtable_build_single(pci, pt, list, length); - } - - return 0; -} - - -/********************************************************************************/ -/* file operations */ - -static int video_begin(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *fmt = NULL; - unsigned int resource; - int ret = 0, err = 0; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - if ((vv->video_status & STATUS_CAPTURE) != 0) { - if (vv->video_fh == fh) { - DEB_S("already capturing\n"); - return 0; - } - DEB_S("already capturing in another open\n"); - return -EBUSY; - } - - if ((vv->video_status & STATUS_OVERLAY) != 0) { - DEB_S("warning: suspending overlay video for streaming capture\n"); - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D("suspending video failed. aborting\n"); - return err; - } - } - - fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat); - /* we need to have a valid format set here */ - if (!fmt) - return -EINVAL; - - if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { - resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS; - } else { - resource = RESOURCE_DMA1_HPS; - } - - ret = saa7146_res_get(fh, resource); - if (0 == ret) { - DEB_S("cannot get capture resource %d\n", resource); - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - return -EBUSY; - } - - /* clear out beginning of streaming bit (rps register 0)*/ - saa7146_write(dev, MC2, MASK_27 ); - - /* enable rps0 irqs */ - SAA7146_IER_ENABLE(dev, MASK_27); - - vv->video_fh = fh; - vv->video_status = STATUS_CAPTURE; - - return 0; -} - -static int video_end(struct saa7146_fh *fh, struct file *file) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_dmaqueue *q = &vv->video_dmaq; - struct saa7146_format *fmt = NULL; - unsigned long flags; - unsigned int resource; - u32 dmas = 0; - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { - DEB_S("not capturing\n"); - return 0; - } - - if (vv->video_fh != fh) { - DEB_S("capturing, but in another open\n"); - return -EBUSY; - } - - fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat); - /* we need to have a valid format set here */ - if (!fmt) - return -EINVAL; - - if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { - resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS; - dmas = MASK_22 | MASK_21 | MASK_20; - } else { - resource = RESOURCE_DMA1_HPS; - dmas = MASK_22; - } - spin_lock_irqsave(&dev->slock,flags); - - /* disable rps0 */ - saa7146_write(dev, MC1, MASK_28); - - /* disable rps0 irqs */ - SAA7146_IER_DISABLE(dev, MASK_27); - - /* shut down all used video dma transfers */ - saa7146_write(dev, MC1, dmas); - - if (q->curr) - saa7146_buffer_finish(dev, q, VIDEOBUF_DONE); - - spin_unlock_irqrestore(&dev->slock, flags); - - vv->video_fh = NULL; - vv->video_status = 0; - - saa7146_res_free(fh, resource); - - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - return 0; -} - -static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - - strscpy((char *)cap->driver, "saa7146 v4l2", sizeof(cap->driver)); - strscpy((char *)cap->card, dev->ext->name, sizeof(cap->card)); - cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | - V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | - V4L2_CAP_DEVICE_CAPS; - cap->capabilities |= dev->ext_vv_data->capabilities; - return 0; -} - -static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - *fb = vv->ov_fb; - fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; - fb->flags = V4L2_FBUF_FLAG_PRIMARY; - return 0; -} - -static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *fb) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *fmt; - - DEB_EE("VIDIOC_S_FBUF\n"); - - if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) - return -EPERM; - - /* check args */ - fmt = saa7146_format_by_fourcc(dev, fb->fmt.pixelformat); - if (NULL == fmt) - return -EINVAL; - - /* planar formats are not allowed for overlay video, clipping and video dma would clash */ - if (fmt->flags & FORMAT_IS_PLANAR) - DEB_S("planar pixelformat '%4.4s' not allowed for overlay\n", - (char *)&fmt->pixelformat); - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh != fh) { - DEB_D("refusing to change framebuffer information while overlay is active in another open\n"); - return -EBUSY; - } - } - - /* ok, accept it */ - vv->ov_fb = *fb; - vv->ov_fmt = fmt; - - if (vv->ov_fb.fmt.bytesperline < vv->ov_fb.fmt.width) { - vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8; - DEB_D("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline); - } - return 0; -} - -static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) -{ - if (f->index >= ARRAY_SIZE(formats)) - return -EINVAL; - f->pixelformat = formats[f->index].pixelformat; - return 0; -} - -int saa7146_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct saa7146_dev *dev = container_of(ctrl->handler, - struct saa7146_dev, ctrl_handler); - struct saa7146_vv *vv = dev->vv_data; - u32 val; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - val = saa7146_read(dev, BCS_CTRL); - val &= 0x00ffffff; - val |= (ctrl->val << 24); - saa7146_write(dev, BCS_CTRL, val); - saa7146_write(dev, MC2, MASK_22 | MASK_06); - break; - - case V4L2_CID_CONTRAST: - val = saa7146_read(dev, BCS_CTRL); - val &= 0xff00ffff; - val |= (ctrl->val << 16); - saa7146_write(dev, BCS_CTRL, val); - saa7146_write(dev, MC2, MASK_22 | MASK_06); - break; - - case V4L2_CID_SATURATION: - val = saa7146_read(dev, BCS_CTRL); - val &= 0xffffff00; - val |= (ctrl->val << 0); - saa7146_write(dev, BCS_CTRL, val); - saa7146_write(dev, MC2, MASK_22 | MASK_06); - break; - - case V4L2_CID_HFLIP: - /* fixme: we can support changing VFLIP and HFLIP here... */ - if ((vv->video_status & STATUS_CAPTURE)) - return -EBUSY; - vv->hflip = ctrl->val; - break; - - case V4L2_CID_VFLIP: - if ((vv->video_status & STATUS_CAPTURE)) - return -EBUSY; - vv->vflip = ctrl->val; - break; - - default: - return -EINVAL; - } - - if ((vv->video_status & STATUS_OVERLAY) != 0) { /* CHECK: && (vv->video_fh == fh)) */ - struct saa7146_fh *fh = vv->video_fh; - - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } - return 0; -} - -static int vidioc_g_parm(struct file *file, void *fh, - struct v4l2_streamparm *parm) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - parm->parm.capture.readbuffers = 1; - v4l2_video_std_frame_period(vv->standard->id, - &parm->parm.capture.timeperframe); - return 0; -} - -static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - f->fmt.pix = vv->video_fmt; - return 0; -} - -static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - f->fmt.win = vv->ov.win; - return 0; -} - -static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - f->fmt.vbi = vv->vbi_fmt; - return 0; -} - -static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *fmt; - enum v4l2_field field; - int maxw, maxh; - int calc_bpl; - - DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh); - - fmt = saa7146_format_by_fourcc(dev, f->fmt.pix.pixelformat); - if (NULL == fmt) - return -EINVAL; - - field = f->fmt.pix.field; - maxw = vv->standard->h_max_out; - maxh = vv->standard->v_max_out; - - if (V4L2_FIELD_ANY == field) { - field = (f->fmt.pix.height > maxh / 2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_BOTTOM; - } - switch (field) { - case V4L2_FIELD_ALTERNATE: - vv->last_field = V4L2_FIELD_TOP; - maxh = maxh / 2; - break; - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - vv->last_field = V4L2_FIELD_INTERLACED; - maxh = maxh / 2; - break; - case V4L2_FIELD_INTERLACED: - vv->last_field = V4L2_FIELD_INTERLACED; - break; - default: - DEB_D("no known field mode '%d'\n", field); - return -EINVAL; - } - - f->fmt.pix.field = field; - f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; - if (f->fmt.pix.width > maxw) - f->fmt.pix.width = maxw; - if (f->fmt.pix.height > maxh) - f->fmt.pix.height = maxh; - - calc_bpl = (f->fmt.pix.width * fmt->depth) / 8; - - if (f->fmt.pix.bytesperline < calc_bpl) - f->fmt.pix.bytesperline = calc_bpl; - - if (f->fmt.pix.bytesperline > (2 * PAGE_SIZE * fmt->depth) / 8) /* arbitrary constraint */ - f->fmt.pix.bytesperline = calc_bpl; - - f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; - DEB_D("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n", - f->fmt.pix.width, f->fmt.pix.height, - f->fmt.pix.bytesperline, f->fmt.pix.sizeimage); - - return 0; -} - - -static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - struct v4l2_window *win = &f->fmt.win; - enum v4l2_field field; - int maxw, maxh; - - DEB_EE("dev:%p\n", dev); - - if (NULL == vv->ov_fb.base) { - DEB_D("no fb base set\n"); - return -EINVAL; - } - if (NULL == vv->ov_fmt) { - DEB_D("no fb fmt set\n"); - return -EINVAL; - } - if (win->w.width < 48 || win->w.height < 32) { - DEB_D("min width/height. (%d,%d)\n", - win->w.width, win->w.height); - return -EINVAL; - } - if (win->clipcount > 16) { - DEB_D("clipcount too big\n"); - return -EINVAL; - } - - field = win->field; - maxw = vv->standard->h_max_out; - maxh = vv->standard->v_max_out; - - if (V4L2_FIELD_ANY == field) { - field = (win->w.height > maxh / 2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_TOP; - } - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_ALTERNATE: - maxh = maxh / 2; - break; - case V4L2_FIELD_INTERLACED: - break; - default: - DEB_D("no known field mode '%d'\n", field); - return -EINVAL; - } - - win->field = field; - if (win->w.width > maxw) - win->w.width = maxw; - if (win->w.height > maxh) - win->w.height = maxh; - - return 0; -} - -static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f) -{ - struct saa7146_fh *fh = __fh; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int err; - - DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh); - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_EE("streaming capture is active\n"); - return -EBUSY; - } - err = vidioc_try_fmt_vid_cap(file, fh, f); - if (0 != err) - return err; - vv->video_fmt = f->fmt.pix; - DEB_EE("set to pixelformat '%4.4s'\n", - (char *)&vv->video_fmt.pixelformat); - return 0; -} - -static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f) -{ - struct saa7146_fh *fh = __fh; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int err; - - DEB_EE("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh); - err = vidioc_try_fmt_vid_overlay(file, fh, f); - if (0 != err) - return err; - vv->ov.win = f->fmt.win; - vv->ov.nclips = f->fmt.win.clipcount; - if (vv->ov.nclips > 16) - vv->ov.nclips = 16; - memcpy(vv->ov.clips, f->fmt.win.clips, - sizeof(struct v4l2_clip) * vv->ov.nclips); - - /* vv->ov.fh is used to indicate that we have valid overlay information, too */ - vv->ov.fh = fh; - - /* check if our current overlay is active */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } - return 0; -} - -static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - *norm = vv->standard->id; - return 0; -} - - /* the saa7146 supfhrts (used in conjunction with the saa7111a for example) - PAL / NTSC / SECAM. if your hardware does not (or does more) - -- override this function in your extension */ -/* - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *e = arg; - if (e->index < 0 ) - return -EINVAL; - if( e->index < dev->ext_vv_data->num_stds ) { - DEB_EE("VIDIOC_ENUMSTD: index:%d\n", e->index); - v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name); - return 0; - } - return -EINVAL; - } - */ - -static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - int found = 0; - int err, i; - - DEB_EE("VIDIOC_S_STD\n"); - - if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) { - DEB_D("cannot change video standard while streaming capture is active\n"); - return -EBUSY; - } - - if ((vv->video_status & STATUS_OVERLAY) != 0) { - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D("suspending video failed. aborting\n"); - return err; - } - } - - for (i = 0; i < dev->ext_vv_data->num_stds; i++) - if (id & dev->ext_vv_data->stds[i].id) - break; - if (i != dev->ext_vv_data->num_stds) { - vv->standard = &dev->ext_vv_data->stds[i]; - if (NULL != dev->ext_vv_data->std_callback) - dev->ext_vv_data->std_callback(dev, vv->standard); - found = 1; - } - - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - if (!found) { - DEB_EE("VIDIOC_S_STD: standard not found\n"); - return -EINVAL; - } - - DEB_EE("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name); - return 0; -} - -static int vidioc_overlay(struct file *file, void *fh, unsigned int on) -{ - int err; - - DEB_D("VIDIOC_OVERLAY on:%d\n", on); - if (on) - err = saa7146_start_preview(fh); - else - err = saa7146_stop_preview(fh); - return err; -} - -static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b) -{ - struct saa7146_fh *fh = __fh; - - if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_reqbufs(&fh->video_q, b); - if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_reqbufs(&fh->vbi_q, b); - return -EINVAL; -} - -static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) -{ - struct saa7146_fh *fh = __fh; - - if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_querybuf(&fh->video_q, buf); - if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_querybuf(&fh->vbi_q, buf); - return -EINVAL; -} - -static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) -{ - struct saa7146_fh *fh = __fh; - - if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_qbuf(&fh->video_q, buf); - if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_qbuf(&fh->vbi_q, buf); - return -EINVAL; -} - -static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) -{ - struct saa7146_fh *fh = __fh; - - if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK); - if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK); - return -EINVAL; -} - -static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) -{ - struct saa7146_fh *fh = __fh; - int err; - - DEB_D("VIDIOC_STREAMON, type:%d\n", type); - - err = video_begin(fh); - if (err) - return err; - if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_streamon(&fh->video_q); - if (type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_streamon(&fh->vbi_q); - return -EINVAL; -} - -static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) -{ - struct saa7146_fh *fh = __fh; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int err; - - DEB_D("VIDIOC_STREAMOFF, type:%d\n", type); - - /* ugly: we need to copy some checks from video_end(), - because videobuf_streamoff() relies on the capture running. - check and fix this */ - if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { - DEB_S("not capturing\n"); - return 0; - } - - if (vv->video_fh != fh) { - DEB_S("capturing, but in another open\n"); - return -EBUSY; - } - - err = -EINVAL; - if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - err = videobuf_streamoff(&fh->video_q); - else if (type == V4L2_BUF_TYPE_VBI_CAPTURE) - err = videobuf_streamoff(&fh->vbi_q); - if (0 != err) { - DEB_D("warning: videobuf_streamoff() failed\n"); - video_end(fh, file); - } else { - err = video_end(fh, file); - } - return err; -} - -const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, - .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, - .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, - .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, - .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, - - .vidioc_overlay = vidioc_overlay, - .vidioc_g_fbuf = vidioc_g_fbuf, - .vidioc_s_fbuf = vidioc_s_fbuf, - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_dqbuf = vidioc_dqbuf, - .vidioc_g_std = vidioc_g_std, - .vidioc_s_std = vidioc_s_std, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, - .vidioc_g_parm = vidioc_g_parm, - .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, -}; - -const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, - - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_dqbuf = vidioc_dqbuf, - .vidioc_g_std = vidioc_g_std, - .vidioc_s_std = vidioc_s_std, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, - .vidioc_g_parm = vidioc_g_parm, - .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, -}; - -/*********************************************************************************/ -/* buffer handling functions */ - -static int buffer_activate (struct saa7146_dev *dev, - struct saa7146_buf *buf, - struct saa7146_buf *next) -{ - struct saa7146_vv *vv = dev->vv_data; - - buf->vb.state = VIDEOBUF_ACTIVE; - saa7146_set_capture(dev,buf,next); - - mod_timer(&vv->video_dmaq.timeout, jiffies+BUFFER_TIMEOUT); - return 0; -} - -static void release_all_pagetables(struct saa7146_dev *dev, struct saa7146_buf *buf) -{ - saa7146_pgtable_free(dev->pci, &buf->pt[0]); - saa7146_pgtable_free(dev->pci, &buf->pt[1]); - saa7146_pgtable_free(dev->pci, &buf->pt[2]); -} - -static int buffer_prepare(struct videobuf_queue *q, - struct videobuf_buffer *vb, enum v4l2_field field) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - int size,err = 0; - - DEB_CAP("vbuf:%p\n", vb); - - /* sanity checks */ - if (vv->video_fmt.width < 48 || - vv->video_fmt.height < 32 || - vv->video_fmt.width > vv->standard->h_max_out || - vv->video_fmt.height > vv->standard->v_max_out) { - DEB_D("w (%d) / h (%d) out of bounds\n", - vv->video_fmt.width, vv->video_fmt.height); - return -EINVAL; - } - - size = vv->video_fmt.sizeimage; - if (0 != buf->vb.baddr && buf->vb.bsize < size) { - DEB_D("size mismatch\n"); - return -EINVAL; - } - - DEB_CAP("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n", - vv->video_fmt.width, vv->video_fmt.height, - size, v4l2_field_names[vv->video_fmt.field]); - if (buf->vb.width != vv->video_fmt.width || - buf->vb.bytesperline != vv->video_fmt.bytesperline || - buf->vb.height != vv->video_fmt.height || - buf->vb.size != size || - buf->vb.field != field || - buf->vb.field != vv->video_fmt.field || - buf->fmt != &vv->video_fmt) { - saa7146_dma_free(dev,q,buf); - } - - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - struct saa7146_format *sfmt; - - buf->vb.bytesperline = vv->video_fmt.bytesperline; - buf->vb.width = vv->video_fmt.width; - buf->vb.height = vv->video_fmt.height; - buf->vb.size = size; - buf->vb.field = field; - buf->fmt = &vv->video_fmt; - buf->vb.field = vv->video_fmt.field; - - sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); - - release_all_pagetables(dev, buf); - if( 0 != IS_PLANAR(sfmt->trans)) { - saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[1]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); - } else { - saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); - } - - err = videobuf_iolock(q,&buf->vb, &vv->ov_fb); - if (err) - goto oops; - err = saa7146_pgtable_build(dev,buf); - if (err) - goto oops; - } - buf->vb.state = VIDEOBUF_PREPARED; - buf->activate = buffer_activate; - - return 0; - - oops: - DEB_D("error out\n"); - saa7146_dma_free(dev,q,buf); - - return err; -} - -static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = fh->dev->vv_data; - - if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS) - *count = MAX_SAA7146_CAPTURE_BUFFERS; - - *size = vv->video_fmt.sizeimage; - - /* check if we exceed the "max_memory" parameter */ - if( (*count * *size) > (max_memory*1048576) ) { - *count = (max_memory*1048576) / *size; - } - - DEB_CAP("%d buffers, %d bytes each\n", *count, *size); - - return 0; -} - -static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_CAP("vbuf:%p\n", vb); - saa7146_buffer_queue(fh->dev, &vv->video_dmaq, buf); -} - -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_CAP("vbuf:%p\n", vb); - - saa7146_dma_free(dev,q,buf); - - release_all_pagetables(dev, buf); -} - -static const struct videobuf_queue_ops video_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, -}; - -/********************************************************************************/ -/* file operations */ - -static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv) -{ - INIT_LIST_HEAD(&vv->video_dmaq.queue); - - timer_setup(&vv->video_dmaq.timeout, saa7146_buffer_timeout, 0); - vv->video_dmaq.dev = dev; - - /* set some default values */ - vv->standard = &dev->ext_vv_data->stds[0]; - - /* FIXME: what's this? */ - vv->current_hps_source = SAA7146_HPS_SOURCE_PORT_A; - vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A; -} - - -static int video_open(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = file->private_data; - - videobuf_queue_sg_init(&fh->video_q, &video_qops, - &dev->pci->dev, &dev->slock, - V4L2_BUF_TYPE_VIDEO_CAPTURE, - V4L2_FIELD_INTERLACED, - sizeof(struct saa7146_buf), - file, &dev->v4l2_lock); - - return 0; -} - - -static void video_close(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = dev->vv_data; - struct videobuf_queue *q = &fh->video_q; - - if (IS_CAPTURE_ACTIVE(fh) != 0) - video_end(fh, file); - else if (IS_OVERLAY_ACTIVE(fh) != 0) - saa7146_stop_preview(fh); - - videobuf_stop(q); - /* hmm, why is this function declared void? */ -} - - -static void video_irq_done(struct saa7146_dev *dev, unsigned long st) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_dmaqueue *q = &vv->video_dmaq; - - spin_lock(&dev->slock); - DEB_CAP("called\n"); - - /* only finish the buffer if we have one... */ - if( NULL != q->curr ) { - saa7146_buffer_finish(dev,q,VIDEOBUF_DONE); - } - saa7146_buffer_next(dev,q,0); - - spin_unlock(&dev->slock); -} - -static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - ssize_t ret = 0; - - DEB_EE("called\n"); - - if ((vv->video_status & STATUS_CAPTURE) != 0) { - /* fixme: should we allow read() captures while streaming capture? */ - if (vv->video_fh == fh) { - DEB_S("already capturing\n"); - return -EBUSY; - } - DEB_S("already capturing in another open\n"); - return -EBUSY; - } - - ret = video_begin(fh); - if( 0 != ret) { - goto out; - } - - ret = videobuf_read_one(&fh->video_q , data, count, ppos, - file->f_flags & O_NONBLOCK); - if (ret != 0) { - video_end(fh, file); - } else { - ret = video_end(fh, file); - } -out: - /* restart overlay if it was active before */ - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - return ret; -} - -const struct saa7146_use_ops saa7146_video_uops = { - .init = video_init, - .open = video_open, - .release = video_close, - .irq_done = video_irq_done, - .read = video_read, -}; |