diff options
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/cx2341x.h | 2 | ||||
| -rw-r--r-- | include/media/ir-common.h | 1 | ||||
| -rw-r--r-- | include/media/ivtv.h | 65 | ||||
| -rw-r--r-- | include/media/saa7146.h | 1 | ||||
| -rw-r--r-- | include/media/saa7146_vv.h | 2 | ||||
| -rw-r--r-- | include/media/tuner-types.h | 4 | ||||
| -rw-r--r-- | include/media/tuner.h | 1 | ||||
| -rw-r--r-- | include/media/v4l2-chip-ident.h | 3 | ||||
| -rw-r--r-- | include/media/v4l2-dev.h | 16 | ||||
| -rw-r--r-- | include/media/v4l2-int-device.h | 278 | ||||
| -rw-r--r-- | include/media/videobuf-core.h (renamed from include/media/video-buf.h) | 181 | ||||
| -rw-r--r-- | include/media/videobuf-dma-sg.h | 122 | ||||
| -rw-r--r-- | include/media/videobuf-dvb.h (renamed from include/media/video-buf-dvb.h) | 0 | ||||
| -rw-r--r-- | include/media/videobuf-vmalloc.h | 41 |
14 files changed, 524 insertions, 193 deletions
diff --git a/include/media/cx2341x.h b/include/media/cx2341x.h index 38c12fed7535..af8071d7620d 100644 --- a/include/media/cx2341x.h +++ b/include/media/cx2341x.h @@ -91,7 +91,7 @@ int cx2341x_update(void *priv, cx2341x_mbox_func func, int cx2341x_ctrl_query(struct cx2341x_mpeg_params *params, struct v4l2_queryctrl *qctrl); const char **cx2341x_ctrl_get_menu(u32 id); -int cx2341x_ext_ctrls(struct cx2341x_mpeg_params *params, +int cx2341x_ext_ctrls(struct cx2341x_mpeg_params *params, int busy, struct v4l2_ext_controls *ctrls, unsigned int cmd); void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p); void cx2341x_log_status(struct cx2341x_mpeg_params *p, const char *prefix); diff --git a/include/media/ir-common.h b/include/media/ir-common.h index 9807a7c15830..7a785fa77212 100644 --- a/include/media/ir-common.h +++ b/include/media/ir-common.h @@ -140,6 +140,7 @@ extern IR_KEYTAB_TYPE ir_codes_budget_ci_old[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_asus_pc39[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_encore_enltv[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_tt_1500[IR_KEYTAB_SIZE]; +extern IR_KEYTAB_TYPE ir_codes_fusionhdtv_mce[IR_KEYTAB_SIZE]; #endif diff --git a/include/media/ivtv.h b/include/media/ivtv.h deleted file mode 100644 index 412b48ea8eda..000000000000 --- a/include/media/ivtv.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - Public ivtv API header - Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> - Copyright (C) 2004-2007 Hans Verkuil <hverkuil@xs4all.nl> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _LINUX_IVTV_H -#define _LINUX_IVTV_H - -/* ivtv knows several distinct output modes: MPEG streaming, - YUV streaming, YUV updates through user DMA and the passthrough - mode. - - In order to clearly tell the driver that we are in user DMA - YUV mode you need to call IVTV_IOC_DMA_FRAME with y_source == NULL - first (althrough if you don't then the first time - DMA_FRAME is called the mode switch is done automatically). - - When you close the file handle the user DMA mode is exited again. - - While in one mode, you cannot use another mode (EBUSY is returned). - - All this means that if you want to change the YUV interlacing - for the user DMA YUV mode you first need to do call IVTV_IOC_DMA_FRAME - with y_source == NULL before you can set the correct format using - VIDIOC_S_FMT. - - Eventually all this should be replaced with a proper V4L2 API, - but for now we have to do it this way. */ - -struct ivtv_dma_frame { - enum v4l2_buf_type type; /* V4L2_BUF_TYPE_VIDEO_OUTPUT */ - __u32 pixelformat; /* 0 == same as destination */ - void __user *y_source; /* if NULL and type == V4L2_BUF_TYPE_VIDEO_OUTPUT, - then just switch to user DMA YUV output mode */ - void __user *uv_source; /* Unused for RGB pixelformats */ - struct v4l2_rect src; - struct v4l2_rect dst; - __u32 src_width; - __u32 src_height; -}; - -#define IVTV_IOC_DMA_FRAME _IOW ('V', BASE_VIDIOC_PRIVATE+0, struct ivtv_dma_frame) - -/* These are the VBI types as they appear in the embedded VBI private packets. */ -#define IVTV_SLICED_TYPE_TELETEXT_B (1) -#define IVTV_SLICED_TYPE_CAPTION_525 (4) -#define IVTV_SLICED_TYPE_WSS_625 (5) -#define IVTV_SLICED_TYPE_VPS (7) - -#endif /* _LINUX_IVTV_H */ diff --git a/include/media/saa7146.h b/include/media/saa7146.h index 67703249b245..cd3ff2c29d5e 100644 --- a/include/media/saa7146.h +++ b/include/media/saa7146.h @@ -146,7 +146,6 @@ struct saa7146_dev /* from saa7146_i2c.c */ int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c_adapter, u32 bitrate); -int saa7146_i2c_transfer(struct saa7146_dev *saa, const struct i2c_msg *msgs, int num, int retries); /* from saa7146_core.c */ extern struct list_head saa7146_devices; diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h index cce20ed5cf6c..e49f7e156061 100644 --- a/include/media/saa7146_vv.h +++ b/include/media/saa7146_vv.h @@ -4,7 +4,7 @@ #include <linux/videodev.h> #include <media/v4l2-common.h> #include <media/saa7146.h> -#include <media/video-buf.h> +#include <media/videobuf-dma-sg.h> #define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */ #define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */ diff --git a/include/media/tuner-types.h b/include/media/tuner-types.h index e5ad3fcfe984..b201371416a0 100644 --- a/include/media/tuner-types.h +++ b/include/media/tuner-types.h @@ -79,6 +79,10 @@ struct tuner_params { /* Select 18% (or according to datasheet 0%) L standard PLL gating, vs the driver default of 36%. */ unsigned int default_pll_gating_18:1; + /* IF to use in radio mode. Tuners with a separate radio IF filter + seem to use 10.7, while those without use 33.3 for PAL/SECAM tuners + and 41.3 for NTSC tuners. 0 = 10.7, 1 = 33.3, 2 = 41.3 */ + unsigned int radio_if:2; /* Default tda9887 TOP value in dB for the low band. Default is 0. Range: -16:+15 */ signed int default_top_low:5; diff --git a/include/media/tuner.h b/include/media/tuner.h index 160381c72e4b..c03dceb92605 100644 --- a/include/media/tuner.h +++ b/include/media/tuner.h @@ -146,6 +146,7 @@ extern int tuner_debug; #define TDA9887_AUTOMUTE (1<<18) #define TDA9887_GATING_18 (1<<19) #define TDA9887_GAIN_NORMAL (1<<20) +#define TDA9887_RIF_41_3 (1<<21) /* radio IF1 41.3 vs 33.3 */ #ifdef __KERNEL__ diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index 09d16c4f00f7..8ae42c41dd08 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -65,6 +65,9 @@ enum { V4L2_IDENT_CX23415 = 415, V4L2_IDENT_CX23416 = 416, + /* module vp27smpx: just ident 2700 */ + V4L2_IDENT_VP27SMPX = 2700, + /* module wm8739: just ident 8739 */ V4L2_IDENT_WM8739 = 8739, diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 17f8f3a2f0a3..e75d5e6c4cea 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -23,8 +23,6 @@ #include <linux/videodev2.h> #endif -#include <linux/fs.h> - #define VIDEO_MAJOR 81 /* Minor device allocation */ #define MINOR_VFL_TYPE_GRABBER_MIN 0 @@ -88,8 +86,11 @@ struct video_device /* device ops */ const struct file_operations *fops; + /* sysfs */ + struct device class_dev; /* v4l device */ + struct device *dev; /* device parent */ + /* device info */ - struct device *dev; char name[32]; int type; /* v4l1 */ int type2; /* v4l2 */ @@ -334,7 +335,6 @@ void *priv; /* for videodev.c intenal usage -- please don't touch */ int users; /* video_exclusive_{open|close} ... */ struct mutex lock; /* ... helper function uses these */ - struct class_device class_dev; /* sysfs */ }; /* Class-dev to video-device */ @@ -362,18 +362,18 @@ extern int video_usercopy(struct inode *inode, struct file *file, static inline int __must_check video_device_create_file(struct video_device *vfd, - struct class_device_attribute *attr) + struct device_attribute *attr) { - int ret = class_device_create_file(&vfd->class_dev, attr); + int ret = device_create_file(&vfd->class_dev, attr); if (ret < 0) printk(KERN_WARNING "%s error: %d\n", __FUNCTION__, ret); return ret; } static inline void video_device_remove_file(struct video_device *vfd, - struct class_device_attribute *attr) + struct device_attribute *attr) { - class_device_remove_file(&vfd->class_dev, attr); + device_remove_file(&vfd->class_dev, attr); } #endif /* CONFIG_VIDEO_V4L1_COMPAT */ diff --git a/include/media/v4l2-int-device.h b/include/media/v4l2-int-device.h new file mode 100644 index 000000000000..066ebfc4f983 --- /dev/null +++ b/include/media/v4l2-int-device.h @@ -0,0 +1,278 @@ +/* + * include/media/v4l2-int-device.h + * + * V4L2 internal ioctl interface. + * + * Copyright (C) 2007 Nokia Corporation. + * + * Contact: Sakari Ailus <sakari.ailus@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef V4L2_INT_DEVICE_H +#define V4L2_INT_DEVICE_H + +#include <linux/module.h> +#include <media/v4l2-common.h> + +#define V4L2NAMESIZE 32 + +/* + * + * The internal V4L2 device interface core. + * + */ + +enum v4l2_int_type { + v4l2_int_type_master = 1, + v4l2_int_type_slave +}; + +struct v4l2_int_device; + +struct v4l2_int_master { + int (*attach)(struct v4l2_int_device *master, + struct v4l2_int_device *slave); + void (*detach)(struct v4l2_int_device *master); +}; + +typedef int (v4l2_int_ioctl_func)(struct v4l2_int_device *); +typedef int (v4l2_int_ioctl_func_0)(struct v4l2_int_device *); +typedef int (v4l2_int_ioctl_func_1)(struct v4l2_int_device *, void *); + +struct v4l2_int_ioctl_desc { + int num; + v4l2_int_ioctl_func *func; +}; + +struct v4l2_int_slave { + /* Don't touch master. */ + struct v4l2_int_device *master; + + char attach_to[V4L2NAMESIZE]; + + int num_ioctls; + struct v4l2_int_ioctl_desc *ioctls; +}; + +struct v4l2_int_device { + /* Don't touch head. */ + struct list_head head; + + struct module *module; + + char name[V4L2NAMESIZE]; + + enum v4l2_int_type type; + union { + struct v4l2_int_master *master; + struct v4l2_int_slave *slave; + } u; + + void *priv; +}; + +int v4l2_int_device_register(struct v4l2_int_device *d); +void v4l2_int_device_unregister(struct v4l2_int_device *d); + +int v4l2_int_ioctl_0(struct v4l2_int_device *d, int cmd); +int v4l2_int_ioctl_1(struct v4l2_int_device *d, int cmd, void *arg); + +/* + * + * Types and definitions for IOCTL commands. + * + */ + +/* Slave interface type. */ +enum v4l2_if_type { + /* + * Parallel 8-, 10- or 12-bit interface, used by for example + * on certain image sensors. + */ + V4L2_IF_TYPE_BT656, +}; + +enum v4l2_if_type_bt656_mode { + /* + * Modes without Bt synchronisation codes. Separate + * synchronisation signal lines are used. + */ + V4L2_IF_TYPE_BT656_MODE_NOBT_8BIT, + V4L2_IF_TYPE_BT656_MODE_NOBT_10BIT, + V4L2_IF_TYPE_BT656_MODE_NOBT_12BIT, + /* + * Use Bt synchronisation codes. The vertical and horizontal + * synchronisation is done based on synchronisation codes. + */ + V4L2_IF_TYPE_BT656_MODE_BT_8BIT, + V4L2_IF_TYPE_BT656_MODE_BT_10BIT, +}; + +struct v4l2_if_type_bt656 { + /* + * 0: Frame begins when vsync is high. + * 1: Frame begins when vsync changes from low to high. + */ + unsigned frame_start_on_rising_vs:1; + /* Use Bt synchronisation codes for sync correction. */ + unsigned bt_sync_correct:1; + /* Swap every two adjacent image data elements. */ + unsigned swap:1; + /* Inverted latch clock polarity from slave. */ + unsigned latch_clk_inv:1; + /* Hs polarity. 0 is active high, 1 active low. */ + unsigned nobt_hs_inv:1; + /* Vs polarity. 0 is active high, 1 active low. */ + unsigned nobt_vs_inv:1; + enum v4l2_if_type_bt656_mode mode; + /* Minimum accepted bus clock for slave (in Hz). */ + u32 clock_min; + /* Maximum accepted bus clock for slave. */ + u32 clock_max; + /* + * Current wish of the slave. May only change in response to + * ioctls that affect image capture. + */ + u32 clock_curr; +}; + +struct v4l2_ifparm { + enum v4l2_if_type if_type; + union { + struct v4l2_if_type_bt656 bt656; + } u; +}; + +/* IOCTL command numbers. */ +enum v4l2_int_ioctl_num { + /* + * + * "Proper" V4L ioctls, as in struct video_device. + * + */ + vidioc_int_enum_fmt_cap_num = 1, + vidioc_int_g_fmt_cap_num, + vidioc_int_s_fmt_cap_num, + vidioc_int_try_fmt_cap_num, + vidioc_int_queryctrl_num, + vidioc_int_g_ctrl_num, + vidioc_int_s_ctrl_num, + vidioc_int_g_parm_num, + vidioc_int_s_parm_num, + + /* + * + * Strictly internal ioctls. + * + */ + /* Initialise the device when slave attaches to the master. */ + vidioc_int_dev_init_num = 1000, + /* Delinitialise the device at slave detach. */ + vidioc_int_dev_exit_num, + /* Set device power state: 0 is off, non-zero is on. */ + vidioc_int_s_power_num, + /* Get slave interface parameters. */ + vidioc_int_g_ifparm_num, + /* Does the slave need to be reset after VIDIOC_DQBUF? */ + vidioc_int_g_needs_reset_num, + + /* + * + * VIDIOC_INT_* ioctls. + * + */ + /* VIDIOC_INT_RESET */ + vidioc_int_reset_num, + /* VIDIOC_INT_INIT */ + vidioc_int_init_num, + /* VIDIOC_INT_G_CHIP_IDENT */ + vidioc_int_g_chip_ident_num, + + /* + * + * Start of private ioctls. + * + */ + vidioc_int_priv_start_num = 2000, +}; + +/* + * + * IOCTL wrapper functions for better type checking. + * + */ + +#define V4L2_INT_WRAPPER_0(name) \ + static inline int vidioc_int_##name(struct v4l2_int_device *d) \ + { \ + return v4l2_int_ioctl_0(d, vidioc_int_##name##_num); \ + } \ + \ + static inline struct v4l2_int_ioctl_desc \ + vidioc_int_##name##_cb(int (*func) \ + (struct v4l2_int_device *)) \ + { \ + struct v4l2_int_ioctl_desc desc; \ + \ + desc.num = vidioc_int_##name##_num; \ + desc.func = (v4l2_int_ioctl_func *)func; \ + \ + return desc; \ + } + +#define V4L2_INT_WRAPPER_1(name, arg_type, asterisk) \ + static inline int vidioc_int_##name(struct v4l2_int_device *d, \ + arg_type asterisk arg) \ + { \ + return v4l2_int_ioctl_1(d, vidioc_int_##name##_num, \ + (void *)(unsigned long)arg); \ + } \ + \ + static inline struct v4l2_int_ioctl_desc \ + vidioc_int_##name##_cb(int (*func) \ + (struct v4l2_int_device *, \ + arg_type asterisk)) \ + { \ + struct v4l2_int_ioctl_desc desc; \ + \ + desc.num = vidioc_int_##name##_num; \ + desc.func = (v4l2_int_ioctl_func *)func; \ + \ + return desc; \ + } + +V4L2_INT_WRAPPER_1(enum_fmt_cap, struct v4l2_fmtdesc, *); +V4L2_INT_WRAPPER_1(g_fmt_cap, struct v4l2_format, *); +V4L2_INT_WRAPPER_1(s_fmt_cap, struct v4l2_format, *); +V4L2_INT_WRAPPER_1(try_fmt_cap, struct v4l2_format, *); +V4L2_INT_WRAPPER_1(queryctrl, struct v4l2_queryctrl, *); +V4L2_INT_WRAPPER_1(g_ctrl, struct v4l2_control, *); +V4L2_INT_WRAPPER_1(s_ctrl, struct v4l2_control, *); +V4L2_INT_WRAPPER_1(g_parm, struct v4l2_streamparm, *); +V4L2_INT_WRAPPER_1(s_parm, struct v4l2_streamparm, *); + +V4L2_INT_WRAPPER_0(dev_init); +V4L2_INT_WRAPPER_0(dev_exit); +V4L2_INT_WRAPPER_1(s_power, int, ); +V4L2_INT_WRAPPER_1(g_ifparm, struct v4l2_ifparm, *); +V4L2_INT_WRAPPER_1(g_needs_reset, void, *); + +V4L2_INT_WRAPPER_0(reset); +V4L2_INT_WRAPPER_0(init); +V4L2_INT_WRAPPER_1(g_chip_ident, int, *); + +#endif diff --git a/include/media/video-buf.h b/include/media/videobuf-core.h index d6f079476db3..9fa09fb800a1 100644 --- a/include/media/video-buf.h +++ b/include/media/videobuf-core.h @@ -1,48 +1,26 @@ /* + * generic helper functions for handling video4linux capture buffers * - * generic helper functions for video4linux capture buffers, to handle - * memory management and PCI DMA. - * Right now, bttv, saa7134, saa7146 and cx88 use it. - * - * The functions expect the hardware being able to scatter gatter - * (i.e. the buffers are not linear in physical memory, but fragmented - * into PAGE_SIZE chunks). They also assume the driver does not need - * to touch the video data. - * - * device specific map/unmap/sync stuff now are mapped as file operations - * to allow its usage by USB and virtual devices. + * (c) 2007 Mauro Carvalho Chehab, <mchehab@infradead.org> * + * Highly based on video-buf written originally by: * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> * (c) 2006 Mauro Carvalho Chehab, <mchehab@infradead.org> * (c) 2006 Ted Walther and John Sokol * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * the Free Software Foundation; either version 2 */ -#include <linux/videodev2.h> #include <linux/poll.h> +#ifdef CONFIG_VIDEO_V4L1_COMPAT +#include <linux/videodev.h> +#endif +#include <linux/videodev2.h> #define UNSET (-1U) -/* --------------------------------------------------------------------- */ - -/* - * Return a scatterlist for some page-aligned vmalloc()'ed memory - * block (NULL on errors). Memory for the scatterlist is allocated - * using kmalloc. The caller must free the memory. - */ -struct scatterlist* videobuf_vmalloc_to_sg(unsigned char *virt, int nr_pages); - -/* - * Return a scatterlist for a an array of userpages (NULL on errors). - * Memory for the scatterlist is allocated using kmalloc. The caller - * must free the memory. - */ -struct scatterlist* videobuf_pages_to_sg(struct page **pages, int nr_pages, - int offset); struct videobuf_buffer; struct videobuf_queue; @@ -50,69 +28,6 @@ struct videobuf_queue; /* --------------------------------------------------------------------- */ /* - * A small set of helper functions to manage buffers (both userland - * and kernel) for DMA. - * - * videobuf_dma_init_*() - * creates a buffer. The userland version takes a userspace - * pointer + length. The kernel version just wants the size and - * does memory allocation too using vmalloc_32(). - * - * videobuf_dma_*() - * see Documentation/DMA-mapping.txt, these functions to - * basically the same. The map function does also build a - * scatterlist for the buffer (and unmap frees it ...) - * - * videobuf_dma_free() - * no comment ... - * - */ - -struct videobuf_dmabuf { - u32 magic; - - /* for userland buffer */ - int offset; - struct page **pages; - - /* for kernel buffers */ - void *vmalloc; - - /* Stores the userspace pointer to vmalloc area */ - void *varea; - - /* for overlay buffers (pci-pci dma) */ - dma_addr_t bus_addr; - - /* common */ - struct scatterlist *sglist; - int sglen; - int nr_pages; - int direction; -}; - -void videobuf_dma_init(struct videobuf_dmabuf *dma); -int videobuf_dma_init_user(struct videobuf_dmabuf *dma, int direction, - unsigned long data, unsigned long size); -int videobuf_dma_init_kernel(struct videobuf_dmabuf *dma, int direction, - int nr_pages); -int videobuf_dma_init_overlay(struct videobuf_dmabuf *dma, int direction, - dma_addr_t addr, int nr_pages); -int videobuf_dma_free(struct videobuf_dmabuf *dma); - -int videobuf_dma_map(struct videobuf_queue* q,struct videobuf_dmabuf *dma); -int videobuf_dma_sync(struct videobuf_queue* q,struct videobuf_dmabuf *dma); -int videobuf_dma_unmap(struct videobuf_queue* q,struct videobuf_dmabuf *dma); - - /*FIXME: these variants are used only on *-alsa code, where videobuf is - * used without queue - */ -int videobuf_pci_dma_map(struct pci_dev *pci,struct videobuf_dmabuf *dma); -int videobuf_pci_dma_unmap(struct pci_dev *pci,struct videobuf_dmabuf *dma); - -/* --------------------------------------------------------------------- */ - -/* * A small set of helper functions to manage video4linux buffers. * * struct videobuf_buffer holds the data structures used by the helper @@ -162,26 +77,33 @@ struct videobuf_buffer { unsigned int input; enum v4l2_field field; enum videobuf_state state; - struct videobuf_dmabuf dma; struct list_head stream; /* QBUF/DQBUF list */ - /* for mmap'ed buffers */ - enum v4l2_memory memory; - size_t boff; /* buffer offset (mmap + overlay) */ - size_t bsize; /* buffer size */ - unsigned long baddr; /* buffer addr (userland ptr!) */ - struct videobuf_mapping *map; - /* touched by irq handler */ struct list_head queue; wait_queue_head_t done; unsigned int field_count; struct timeval ts; -}; -typedef int (vb_map_sg_t)(void *dev,struct scatterlist *sglist,int nr_pages, - int direction); + /* Memory type */ + enum v4l2_memory memory; + + /* buffer size */ + size_t bsize; + + /* buffer offset (mmap + overlay) */ + size_t boff; + /* buffer addr (userland ptr!) */ + unsigned long baddr; + + /* for mmap'ed buffers */ + struct videobuf_mapping *map; + + /* Private pointer to allow specific methods to store their data */ + int privsize; + void *priv; +}; struct videobuf_queue_ops { int (*buf_setup)(struct videobuf_queue *q, @@ -193,14 +115,37 @@ struct videobuf_queue_ops { struct videobuf_buffer *vb); void (*buf_release)(struct videobuf_queue *q, struct videobuf_buffer *vb); +}; - /* Helper operations - device dependent. - * If null, videobuf_init defaults all to PCI handling - */ +#define MAGIC_QTYPE_OPS 0x12261003 + +/* Helper operations - device type dependent */ +struct videobuf_qtype_ops { + u32 magic; - vb_map_sg_t *vb_map_sg; - vb_map_sg_t *vb_dma_sync_sg; - vb_map_sg_t *vb_unmap_sg; + void* (*alloc) (size_t size); + int (*iolock) (struct videobuf_queue* q, + struct videobuf_buffer *vb, + struct v4l2_framebuffer *fbuf); + int (*mmap) (struct videobuf_queue *q, + unsigned int *count, + unsigned int *size, + enum v4l2_memory memory); + int (*sync) (struct videobuf_queue* q, + struct videobuf_buffer *buf); + int (*copy_to_user) (struct videobuf_queue *q, + char __user *data, + size_t count, + int nonblocking); + int (*copy_stream) (struct videobuf_queue *q, + char __user *data, + size_t count, + size_t pos, + int vbihack, + int nonblocking); + int (*mmap_free) (struct videobuf_queue *q); + int (*mmap_mapper) (struct videobuf_queue *q, + struct vm_area_struct *vma); }; struct videobuf_queue { @@ -215,6 +160,7 @@ struct videobuf_queue { enum v4l2_field last; /* for field=V4L2_FIELD_ALTERNATE */ struct videobuf_buffer *bufs[VIDEO_MAX_FRAME]; struct videobuf_queue_ops *ops; + struct videobuf_qtype_ops *int_ops; /* capture via mmap() + ioctl(QBUF/DQBUF) */ unsigned int streaming; @@ -229,28 +175,25 @@ struct videobuf_queue { void *priv_data; }; -void* videobuf_alloc(unsigned int size); int videobuf_waiton(struct videobuf_buffer *vb, int non_blocking, int intr); int videobuf_iolock(struct videobuf_queue* q, struct videobuf_buffer *vb, struct v4l2_framebuffer *fbuf); -/* Maps fops to PCI stuff */ -void videobuf_queue_pci(struct videobuf_queue* q); +void *videobuf_alloc(struct videobuf_queue* q); -void videobuf_queue_init(struct videobuf_queue *q, +void videobuf_queue_core_init(struct videobuf_queue *q, struct videobuf_queue_ops *ops, void *dev, spinlock_t *irqlock, enum v4l2_buf_type type, enum v4l2_field field, unsigned int msize, - void *priv); + void *priv, + struct videobuf_qtype_ops *int_ops); int videobuf_queue_is_busy(struct videobuf_queue *q); void videobuf_queue_cancel(struct videobuf_queue *q); enum v4l2_field videobuf_next_field(struct videobuf_queue *q); -void videobuf_status(struct v4l2_buffer *b, struct videobuf_buffer *vb, - enum v4l2_buf_type type); int videobuf_reqbufs(struct videobuf_queue *q, struct v4l2_requestbuffers *req); int videobuf_querybuf(struct videobuf_queue *q, struct v4l2_buffer *b); @@ -258,6 +201,10 @@ int videobuf_qbuf(struct videobuf_queue *q, struct v4l2_buffer *b); int videobuf_dqbuf(struct videobuf_queue *q, struct v4l2_buffer *b, int nonblocking); +#ifdef CONFIG_VIDEO_V4L1_COMPAT +int videobuf_cgmbuf(struct videobuf_queue *q, + struct video_mbuf *mbuf, int count); +#endif int videobuf_streamon(struct videobuf_queue *q); int videobuf_streamoff(struct videobuf_queue *q); diff --git a/include/media/videobuf-dma-sg.h b/include/media/videobuf-dma-sg.h new file mode 100644 index 000000000000..38105031db23 --- /dev/null +++ b/include/media/videobuf-dma-sg.h @@ -0,0 +1,122 @@ +/* + * helper functions for PCI DMA video4linux capture buffers + * + * The functions expect the hardware being able to scatter gatter + * (i.e. the buffers are not linear in physical memory, but fragmented + * into PAGE_SIZE chunks). They also assume the driver does not need + * to touch the video data. + * + * (c) 2007 Mauro Carvalho Chehab, <mchehab@infradead.org> + * + * Highly based on video-buf written originally by: + * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> + * (c) 2006 Mauro Carvalho Chehab, <mchehab@infradead.org> + * (c) 2006 Ted Walther and John Sokol + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 + */ + +#include <media/videobuf-core.h> + +/* --------------------------------------------------------------------- */ + +/* + * Return a scatterlist for some page-aligned vmalloc()'ed memory + * block (NULL on errors). Memory for the scatterlist is allocated + * using kmalloc. The caller must free the memory. + */ +struct scatterlist* videobuf_vmalloc_to_sg(unsigned char *virt, int nr_pages); + +/* + * Return a scatterlist for a an array of userpages (NULL on errors). + * Memory for the scatterlist is allocated using kmalloc. The caller + * must free the memory. + */ +struct scatterlist* videobuf_pages_to_sg(struct page **pages, int nr_pages, + int offset); + +/* --------------------------------------------------------------------- */ + +/* + * A small set of helper functions to manage buffers (both userland + * and kernel) for DMA. + * + * videobuf_dma_init_*() + * creates a buffer. The userland version takes a userspace + * pointer + length. The kernel version just wants the size and + * does memory allocation too using vmalloc_32(). + * + * videobuf_dma_*() + * see Documentation/DMA-mapping.txt, these functions to + * basically the same. The map function does also build a + * scatterlist for the buffer (and unmap frees it ...) + * + * videobuf_dma_free() + * no comment ... + * + */ + +struct videobuf_dmabuf { + u32 magic; + + /* for userland buffer */ + int offset; + struct page **pages; + + /* for kernel buffers */ + void *vmalloc; + + /* Stores the userspace pointer to vmalloc area */ + void *varea; + + /* for overlay buffers (pci-pci dma) */ + dma_addr_t bus_addr; + + /* common */ + struct scatterlist *sglist; + int sglen; + int nr_pages; + int direction; +}; + +struct videbuf_pci_sg_memory +{ + u32 magic; + + /* for mmap'ed buffers */ + struct videobuf_dmabuf dma; +}; + +void videobuf_dma_init(struct videobuf_dmabuf *dma); +int videobuf_dma_init_user(struct videobuf_dmabuf *dma, int direction, + unsigned long data, unsigned long size); +int videobuf_dma_init_kernel(struct videobuf_dmabuf *dma, int direction, + int nr_pages); +int videobuf_dma_init_overlay(struct videobuf_dmabuf *dma, int direction, + dma_addr_t addr, int nr_pages); +int videobuf_dma_free(struct videobuf_dmabuf *dma); + +int videobuf_dma_map(struct videobuf_queue* q,struct videobuf_dmabuf *dma); +int videobuf_dma_sync(struct videobuf_queue* q,struct videobuf_dmabuf *dma); +int videobuf_dma_unmap(struct videobuf_queue* q,struct videobuf_dmabuf *dma); +struct videobuf_dmabuf *videobuf_to_dma (struct videobuf_buffer *buf); + +void *videobuf_pci_alloc (size_t size); + +void videobuf_queue_pci_init(struct videobuf_queue* q, + struct videobuf_queue_ops *ops, + void *dev, + spinlock_t *irqlock, + enum v4l2_buf_type type, + enum v4l2_field field, + unsigned int msize, + void *priv); + + /*FIXME: these variants are used only on *-alsa code, where videobuf is + * used without queue + */ +int videobuf_pci_dma_map(struct pci_dev *pci,struct videobuf_dmabuf *dma); +int videobuf_pci_dma_unmap(struct pci_dev *pci,struct videobuf_dmabuf *dma); + diff --git a/include/media/video-buf-dvb.h b/include/media/videobuf-dvb.h index 8233cafdeef6..8233cafdeef6 100644 --- a/include/media/video-buf-dvb.h +++ b/include/media/videobuf-dvb.h diff --git a/include/media/videobuf-vmalloc.h b/include/media/videobuf-vmalloc.h new file mode 100644 index 000000000000..26a8958d23d1 --- /dev/null +++ b/include/media/videobuf-vmalloc.h @@ -0,0 +1,41 @@ +/* + * helper functions for vmalloc capture buffers + * + * The functions expect the hardware being able to scatter gatter + * (i.e. the buffers are not linear in physical memory, but fragmented + * into PAGE_SIZE chunks). They also assume the driver does not need + * to touch the video data. + * + * (c) 2007 Mauro Carvalho Chehab, <mchehab@infradead.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 + */ + +#include <media/videobuf-core.h> + +/* --------------------------------------------------------------------- */ + +struct videbuf_vmalloc_memory +{ + u32 magic; + + void *vmalloc; + + /* remap_vmalloc_range seems to need to run after mmap() on some cases */ + struct vm_area_struct *vma; +}; + +void videobuf_queue_vmalloc_init(struct videobuf_queue* q, + struct videobuf_queue_ops *ops, + void *dev, + spinlock_t *irqlock, + enum v4l2_buf_type type, + enum v4l2_field field, + unsigned int msize, + void *priv); + +void *videobuf_to_vmalloc (struct videobuf_buffer *buf); + +void videobuf_vmalloc_free (struct videobuf_buffer *buf); |