diff options
Diffstat (limited to 'drivers/media/video/saa7164/saa7164-fw.c')
| -rw-r--r-- | drivers/media/video/saa7164/saa7164-fw.c | 615 |
1 files changed, 615 insertions, 0 deletions
diff --git a/drivers/media/video/saa7164/saa7164-fw.c b/drivers/media/video/saa7164/saa7164-fw.c new file mode 100644 index 000000000000..6595dd67c5c3 --- /dev/null +++ b/drivers/media/video/saa7164/saa7164-fw.c @@ -0,0 +1,615 @@ +/* + * Driver for the NXP SAA7164 PCIe bridge + * + * Copyright (c) 2009 Steven Toth <stoth@kernellabs.com> + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/firmware.h> + +#include "saa7164.h" + +#define SAA7164_REV2_FIRMWARE "v4l-saa7164-1.0.2.fw" +#define SAA7164_REV2_FIRMWARE_SIZE 3978608 + +#define SAA7164_REV3_FIRMWARE "v4l-saa7164-1.0.3.fw" +#define SAA7164_REV3_FIRMWARE_SIZE 3978608 + +struct fw_header { + u32 firmwaresize; + u32 bslsize; + u32 reserved; + u32 version; +}; + +int saa7164_dl_wait_ack(struct saa7164_dev *dev, u32 reg) +{ + u32 timeout = SAA_DEVICE_TIMEOUT; + while ((saa7164_readl(reg) & 0x01) == 0) { + timeout -= 5; + if (timeout == 0) { + printk(KERN_ERR "%s() timeout (no d/l ack)\n", + __func__); + return -EBUSY; + } + /* TODO: Review this for efficiency, f/w load is slow */ + msleep(1); + } + + return 0; +} + +int saa7164_dl_wait_clr(struct saa7164_dev *dev, u32 reg) +{ + u32 timeout = SAA_DEVICE_TIMEOUT; + while (saa7164_readl(reg) & 0x01) { + timeout -= 5; + if (timeout == 0) { + printk(KERN_ERR "%s() timeout (no d/l clr)\n", + __func__); + return -EBUSY; + } + /* TODO: Review this for efficiency, f/w load is slow */ + msleep(1); + } + + return 0; +} + +/* TODO: move dlflags into dev-> and change to write/readl/b */ +/* TODO: Excessive levels of debug */ +int saa7164_downloadimage(struct saa7164_dev *dev, u8 *src, u32 srcsize, + u32 dlflags, u8 *dst, u32 dstsize) +{ + u32 reg, timeout, offset; + u8 *srcbuf = NULL; + int ret; + + u32 dlflag = dlflags; + u32 dlflag_ack = dlflag + 4; + u32 drflag = dlflag_ack + 4; + u32 drflag_ack = drflag + 4; + u32 bleflag = drflag_ack + 4; + + dprintk(DBGLVL_FW, + "%s(image=%p, size=%d, flags=0x%x, dst=%p, dstsize=0x%x)\n", + __func__, src, srcsize, dlflags, dst, dstsize); + + if ((src == 0) || (dst == 0)) { + ret = -EIO; + goto out; + } + + srcbuf = kzalloc(4 * 1048576, GFP_KERNEL); + if (NULL == srcbuf) { + ret = -ENOMEM; + goto out; + } + + if (srcsize > (4*1048576)) { + ret = -ENOMEM; + goto out; + } + + memcpy(srcbuf, src, srcsize); + + dprintk(DBGLVL_FW, "%s() dlflag = 0x%x\n", __func__, dlflag); + dprintk(DBGLVL_FW, "%s() dlflag_ack = 0x%x\n", __func__, dlflag_ack); + dprintk(DBGLVL_FW, "%s() drflag = 0x%x\n", __func__, drflag); + dprintk(DBGLVL_FW, "%s() drflag_ack = 0x%x\n", __func__, drflag_ack); + dprintk(DBGLVL_FW, "%s() bleflag = 0x%x\n", __func__, bleflag); + + reg = saa7164_readl(dlflag); + dprintk(DBGLVL_FW, "%s() dlflag (0x%x)= 0x%x\n", __func__, dlflag, reg); + if (reg == 1) + dprintk(DBGLVL_FW, + "%s() Download flag already set, please reboot\n", + __func__); + + /* Indicate download start */ + saa7164_writel(dlflag, 1); + ret = saa7164_dl_wait_ack(dev, dlflag_ack); + if (ret < 0) + goto out; + + /* Ack download start, then wait for wait */ + saa7164_writel(dlflag, 0); + ret = saa7164_dl_wait_clr(dev, dlflag_ack); + if (ret < 0) + goto out; + + /* Deal with the raw firmware, in the appropriate chunk size */ + for (offset = 0; srcsize > dstsize; + srcsize -= dstsize, offset += dstsize) { + + dprintk(DBGLVL_FW, "%s() memcpy %d\n", __func__, dstsize); + memcpy(dst, srcbuf + offset, dstsize); + + /* Flag the data as ready */ + saa7164_writel(drflag, 1); + ret = saa7164_dl_wait_ack(dev, drflag_ack); + if (ret < 0) + goto out; + + /* Wait for indication data was received */ + saa7164_writel(drflag, 0); + ret = saa7164_dl_wait_clr(dev, drflag_ack); + if (ret < 0) + goto out; + + } + + dprintk(DBGLVL_FW, "%s() memcpy(l) %d\n", __func__, dstsize); + /* Write last block to the device */ + memcpy(dst, srcbuf+offset, srcsize); + + /* Flag the data as ready */ + saa7164_writel(drflag, 1); + ret = saa7164_dl_wait_ack(dev, drflag_ack); + if (ret < 0) + goto out; + + saa7164_writel(drflag, 0); + timeout = 0; + while (saa7164_readl(bleflag) != SAA_DEVICE_IMAGE_BOOTING) { + if (saa7164_readl(bleflag) & SAA_DEVICE_IMAGE_CORRUPT) { + printk(KERN_ERR "%s() image corrupt\n", __func__); + ret = -EBUSY; + goto out; + } + + if (saa7164_readl(bleflag) & SAA_DEVICE_MEMORY_CORRUPT) { + printk(KERN_ERR "%s() device memory corrupt\n", + __func__); + ret = -EBUSY; + goto out; + } + + msleep(10); + if (timeout++ > 60) + break; + } + + printk(KERN_INFO "%s() Image downloaded, booting...\n", __func__); + + ret = saa7164_dl_wait_clr(dev, drflag_ack); + if (ret < 0) + goto out; + + printk(KERN_INFO "%s() Image booted successfully.\n", __func__); + ret = 0; + +out: + kfree(srcbuf); + return ret; +} + +/* TODO: Excessive debug */ +/* Load the firmware. Optionally it can be in ROM or newer versions + * can be on disk, saving the expense of the ROM hardware. */ +int saa7164_downloadfirmware(struct saa7164_dev *dev) +{ + /* u32 second_timeout = 60 * SAA_DEVICE_TIMEOUT; */ + u32 tmp, filesize, version, err_flags, first_timeout, fwlength; + u32 second_timeout, updatebootloader = 1, bootloadersize = 0; + const struct firmware *fw = NULL; + struct fw_header *hdr, *boothdr = NULL, *fwhdr; + u32 bootloaderversion = 0, fwloadersize; + u8 *bootloaderoffset = NULL, *fwloaderoffset; + char *fwname; + int ret; + + dprintk(DBGLVL_FW, "%s()\n", __func__); + + if (saa7164_boards[dev->board].chiprev == SAA7164_CHIP_REV2) { + fwname = SAA7164_REV2_FIRMWARE; + fwlength = SAA7164_REV2_FIRMWARE_SIZE; + } else { + fwname = SAA7164_REV3_FIRMWARE; + fwlength = SAA7164_REV3_FIRMWARE_SIZE; + } + + version = saa7164_getcurrentfirmwareversion(dev); + + if (version == 0x00) { + + second_timeout = 100; + first_timeout = 100; + err_flags = saa7164_readl(SAA_BOOTLOADERERROR_FLAGS); + dprintk(DBGLVL_FW, "%s() err_flags = %x\n", + __func__, err_flags); + + while (err_flags != SAA_DEVICE_IMAGE_BOOTING) { + dprintk(DBGLVL_FW, "%s() err_flags = %x\n", + __func__, err_flags); + msleep(10); + + if (err_flags & SAA_DEVICE_IMAGE_CORRUPT) { + printk(KERN_ERR "%s() firmware corrupt\n", + __func__); + break; + } + if (err_flags & SAA_DEVICE_MEMORY_CORRUPT) { + printk(KERN_ERR "%s() device memory corrupt\n", + __func__); + break; + } + if (err_flags & SAA_DEVICE_NO_IMAGE) { + printk(KERN_ERR "%s() no first image\n", + __func__); + break; + } + if (err_flags & SAA_DEVICE_IMAGE_SEARCHING) { + first_timeout -= 10; + if (first_timeout == 0) { + printk(KERN_ERR + "%s() no first image\n", + __func__); + break; + } + } else if (err_flags & SAA_DEVICE_IMAGE_LOADING) { + second_timeout -= 10; + if (second_timeout == 0) { + printk(KERN_ERR + "%s() FW load time exceeded\n", + __func__); + break; + } + } else { + second_timeout -= 10; + if (second_timeout == 0) { + printk(KERN_ERR + "%s() Unknown bootloader flags 0x%x\n", + __func__, err_flags); + break; + } + } + + err_flags = saa7164_readl(SAA_BOOTLOADERERROR_FLAGS); + } /* While != Booting */ + + if (err_flags == SAA_DEVICE_IMAGE_BOOTING) { + dprintk(DBGLVL_FW, "%s() Loader 1 has loaded.\n", + __func__); + first_timeout = SAA_DEVICE_TIMEOUT; + second_timeout = 60 * SAA_DEVICE_TIMEOUT; + second_timeout = 100; + + err_flags = saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS); + dprintk(DBGLVL_FW, "%s() err_flags2 = %x\n", + __func__, err_flags); + while (err_flags != SAA_DEVICE_IMAGE_BOOTING) { + dprintk(DBGLVL_FW, "%s() err_flags2 = %x\n", + __func__, err_flags); + msleep(10); + + if (err_flags & SAA_DEVICE_IMAGE_CORRUPT) { + printk(KERN_ERR + "%s() firmware corrupt\n", + __func__); + break; + } + if (err_flags & SAA_DEVICE_MEMORY_CORRUPT) { + printk(KERN_ERR + "%s() device memory corrupt\n", + __func__); + break; + } + if (err_flags & SAA_DEVICE_NO_IMAGE) { + printk(KERN_ERR "%s() no first image\n", + __func__); + break; + } + if (err_flags & SAA_DEVICE_IMAGE_SEARCHING) { + first_timeout -= 10; + if (first_timeout == 0) { + printk(KERN_ERR + "%s() no second image\n", + __func__); + break; + } + } else if (err_flags & + SAA_DEVICE_IMAGE_LOADING) { + second_timeout -= 10; + if (second_timeout == 0) { + printk(KERN_ERR + "%s() FW load time exceeded\n", + __func__); + break; + } + } else { + second_timeout -= 10; + if (second_timeout == 0) { + printk(KERN_ERR + "%s() Unknown bootloader flags 0x%x\n", + __func__, err_flags); + break; + } + } + + err_flags = + saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS); + } /* err_flags != SAA_DEVICE_IMAGE_BOOTING */ + + dprintk(DBGLVL_FW, "%s() Loader flags 1:0x%x 2:0x%x.\n", + __func__, + saa7164_readl(SAA_BOOTLOADERERROR_FLAGS), + saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS)); + + } /* err_flags == SAA_DEVICE_IMAGE_BOOTING */ + + /* It's possible for both firmwares to have booted, + * but that doesn't mean they've finished booting yet. + */ + if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) == + SAA_DEVICE_IMAGE_BOOTING) && + (saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS) == + SAA_DEVICE_IMAGE_BOOTING)) { + + + dprintk(DBGLVL_FW, "%s() Loader 2 has loaded.\n", + __func__); + + first_timeout = SAA_DEVICE_TIMEOUT; + while (first_timeout) { + msleep(10); + + version = + saa7164_getcurrentfirmwareversion(dev); + if (version) { + dprintk(DBGLVL_FW, + "%s() All f/w loaded successfully\n", + __func__); + break; + } else { + first_timeout -= 10; + if (first_timeout == 0) { + printk(KERN_ERR + "%s() FW did not boot\n", + __func__); + break; + } + } + } + } + version = saa7164_getcurrentfirmwareversion(dev); + } /* version == 0 */ + + /* Has the firmware really booted? */ + if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) == + SAA_DEVICE_IMAGE_BOOTING) && + (saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS) == + SAA_DEVICE_IMAGE_BOOTING) && (version == 0)) { + + printk(KERN_ERR + "%s() The firmware hung, probably bad firmware\n", + __func__); + + /* Tell the second stage loader we have a deadlock */ + saa7164_writel(SAA_DEVICE_DEADLOCK_DETECTED_OFFSET, + SAA_DEVICE_DEADLOCK_DETECTED); + + saa7164_getfirmwarestatus(dev); + + return -ENOMEM; + } + + dprintk(DBGLVL_FW, "Device has Firmware Version %d.%d.%d.%d\n", + (version & 0x0000fc00) >> 10, + (version & 0x000003e0) >> 5, + (version & 0x0000001f), + (version & 0xffff0000) >> 16); + + /* Load the firmwware from the disk if required */ + if (version == 0) { + + printk(KERN_INFO "%s() Waiting for firmware upload (%s)\n", + __func__, fwname); + + ret = request_firmware(&fw, fwname, &dev->pci->dev); + if (ret) { + printk(KERN_ERR "%s() Upload failed. " + "(file not found?)\n", __func__); + return -ENOMEM; + } + + printk(KERN_INFO "%s() firmware read %Zu bytes.\n", + __func__, fw->size); + + if (fw->size != fwlength) { + printk(KERN_ERR "xc5000: firmware incorrect size\n"); + ret = -ENOMEM; + goto out; + } + + printk(KERN_INFO "%s() firmware loaded.\n", __func__); + + hdr = (struct fw_header *)fw->data; + printk(KERN_INFO "Firmware file header part 1:\n"); + printk(KERN_INFO " .FirmwareSize = 0x%x\n", hdr->firmwaresize); + printk(KERN_INFO " .BSLSize = 0x%x\n", hdr->bslsize); + printk(KERN_INFO " .Reserved = 0x%x\n", hdr->reserved); + printk(KERN_INFO " .Version = 0x%x\n", hdr->version); + + /* Retreive bootloader if reqd */ + if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0)) + /* Second bootloader in the firmware file */ + filesize = hdr->reserved * 16; + else + filesize = (hdr->firmwaresize + hdr->bslsize) * + 16 + sizeof(struct fw_header); + + printk(KERN_INFO "%s() SecBootLoader.FileSize = %d\n", + __func__, filesize); + + /* Get bootloader (if reqd) and firmware header */ + if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0)) { + /* Second boot loader is required */ + + /* Get the loader header */ + boothdr = (struct fw_header *)(fw->data + + sizeof(struct fw_header)); + + bootloaderversion = + saa7164_readl(SAA_DEVICE_2ND_VERSION); + dprintk(DBGLVL_FW, "Onboard BootLoader:\n"); + dprintk(DBGLVL_FW, "->Flag 0x%x\n", + saa7164_readl(SAA_BOOTLOADERERROR_FLAGS)); + dprintk(DBGLVL_FW, "->Ack 0x%x\n", + saa7164_readl(SAA_DATAREADY_FLAG_ACK)); + dprintk(DBGLVL_FW, "->FW Version 0x%x\n", version); + dprintk(DBGLVL_FW, "->Loader Version 0x%x\n", + bootloaderversion); + + if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) == + 0x03) && (saa7164_readl(SAA_DATAREADY_FLAG_ACK) + == 0x00) && (version == 0x00)) { + + dprintk(DBGLVL_FW, "BootLoader version in " + "rom %d.%d.%d.%d\n", + (bootloaderversion & 0x0000fc00) >> 10, + (bootloaderversion & 0x000003e0) >> 5, + (bootloaderversion & 0x0000001f), + (bootloaderversion & 0xffff0000) >> 16 + ); + dprintk(DBGLVL_FW, "BootLoader version " + "in file %d.%d.%d.%d\n", + (boothdr->version & 0x0000fc00) >> 10, + (boothdr->version & 0x000003e0) >> 5, + (boothdr->version & 0x0000001f), + (boothdr->version & 0xffff0000) >> 16 + ); + + if (bootloaderversion == boothdr->version) + updatebootloader = 0; + } + + /* Calculate offset to firmware header */ + tmp = (boothdr->firmwaresize + boothdr->bslsize) * 16 + + (sizeof(struct fw_header) + + sizeof(struct fw_header)); + + fwhdr = (struct fw_header *)(fw->data+tmp); + } else { + /* No second boot loader */ + fwhdr = hdr; + } + + dprintk(DBGLVL_FW, "Firmware version in file %d.%d.%d.%d\n", + (fwhdr->version & 0x0000fc00) >> 10, + (fwhdr->version & 0x000003e0) >> 5, + (fwhdr->version & 0x0000001f), + (fwhdr->version & 0xffff0000) >> 16 + ); + + if (version == fwhdr->version) { + /* No download, firmware already on board */ + ret = 0; + goto out; + } + + if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0)) { + if (updatebootloader) { + /* Get ready to upload the bootloader */ + bootloadersize = (boothdr->firmwaresize + + boothdr->bslsize) * 16 + + sizeof(struct fw_header); + + bootloaderoffset = (u8 *)(fw->data + + sizeof(struct fw_header)); + + dprintk(DBGLVL_FW, "bootloader d/l starts.\n"); + printk(KERN_INFO "%s() FirmwareSize = 0x%x\n", + __func__, boothdr->firmwaresize); + printk(KERN_INFO "%s() BSLSize = 0x%x\n", + __func__, boothdr->bslsize); + printk(KERN_INFO "%s() Reserved = 0x%x\n", + __func__, boothdr->reserved); + printk(KERN_INFO "%s() Version = 0x%x\n", + __func__, boothdr->version); + ret = saa7164_downloadimage( + dev, + bootloaderoffset, + bootloadersize, + SAA_DOWNLOAD_FLAGS, + dev->bmmio + SAA_DEVICE_DOWNLOAD_OFFSET, + SAA_DEVICE_BUFFERBLOCKSIZE); + if (ret < 0) { + printk(KERN_ERR + "bootloader d/l has failed\n"); + goto out; + } + dprintk(DBGLVL_FW, + "bootloader download complete.\n"); + + } + + printk(KERN_ERR "starting firmware download(2)\n"); + bootloadersize = (boothdr->firmwaresize + + boothdr->bslsize) * 16 + + sizeof(struct fw_header); + + bootloaderoffset = + (u8 *)(fw->data + sizeof(struct fw_header)); + + fwloaderoffset = bootloaderoffset + bootloadersize; + + /* TODO: fix this bounds overrun here with old f/ws */ + fwloadersize = (fwhdr->firmwaresize + fwhdr->bslsize) * + 16 + sizeof(struct fw_header); + + ret = saa7164_downloadimage( + dev, + fwloaderoffset, + fwloadersize, + SAA_DEVICE_2ND_DOWNLOADFLAG_OFFSET, + dev->bmmio + SAA_DEVICE_2ND_DOWNLOAD_OFFSET, + SAA_DEVICE_2ND_BUFFERBLOCKSIZE); + if (ret < 0) { + printk(KERN_ERR "firmware download failed\n"); + goto out; + } + printk(KERN_ERR "firmware download complete.\n"); + + } else { + + /* No bootloader update reqd, download firmware only */ + printk(KERN_ERR "starting firmware download(3)\n"); + + ret = saa7164_downloadimage( + dev, + (u8 *)fw->data, + fw->size, + SAA_DOWNLOAD_FLAGS, + dev->bmmio + SAA_DEVICE_DOWNLOAD_OFFSET, + SAA_DEVICE_BUFFERBLOCKSIZE); + if (ret < 0) { + printk(KERN_ERR "firmware download failed\n"); + goto out; + } + printk(KERN_ERR "firmware download complete.\n"); + } + } + + ret = 0; + +out: + if (fw) + release_firmware(fw); + + return ret; +} |