diff options
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-cards.c | 168 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-core.c | 807 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-i2c.c | 443 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 1815 | ||||
| -rw-r--r-- | drivers/media/video/em28xx/em28xx.h | 479 | ||||
| -rw-r--r-- | drivers/media/video/tvp5150.c | 337 |
6 files changed, 3938 insertions, 111 deletions
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c new file mode 100644 index 00000000000..b6d89decfbd --- /dev/null +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -0,0 +1,168 @@ +/* + em2820-cards.c - driver for Empia EM2820/2840 USB video capture devices + + Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> + Ludovico Cavedon <cavedon@sssup.it> + Mauro Carvalho Chehab <mchehab@brturbo.com.br> + + Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> + + 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/init.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/usb.h> +#include <media/tuner.h> +#include "audiochip.h" +#include "tveeprom.h" +#include "msp3400.h" + +#include "em2820.h" + +enum em2820_board_entry { + EM2820_BOARD_TERRATEC_CINERGY_250, + EM2820_BOARD_PINNACLE_USB_2, + EM2820_BOARD_HAUPPAUGE_WINTV_USB_2, + EM2820_BOARD_MSI_VOX_USB_2 +}; + +struct em2820_board em2820_boards[] = { + [EM2820_BOARD_TERRATEC_CINERGY_250] = { + .name = "Terratec Cinergy 250 USB", + .vchannels = 3, + .norm = VIDEO_MODE_PAL, + .tuner_type = TUNER_LG_PAL_NEW_TAPC, + .tda9887_conf = TDA9887_PRESENT, + .has_tuner = 1, + .decoder = EM2820_SAA7113, + .input = {{ + .type = EM2820_VMUX_TELEVISION, + .vmux = 2, + .amux = 0, + },{ + .type = EM2820_VMUX_COMPOSITE1, + .vmux = 0, + .amux = 1, + },{ + .type = EM2820_VMUX_SVIDEO, + .vmux = 9, + .amux = 1, + }}, + }, + [EM2820_BOARD_PINNACLE_USB_2] = { + .name = "Pinnacle PCTV USB 2", + .vchannels = 3, + .norm = VIDEO_MODE_PAL, + .tuner_type = TUNER_LG_PAL_NEW_TAPC, + .tda9887_conf = TDA9887_PRESENT, + .has_tuner = 1, + .decoder = EM2820_SAA7113, + .input = {{ + .type = EM2820_VMUX_TELEVISION, + .vmux = 2, + .amux = 0, + },{ + .type = EM2820_VMUX_COMPOSITE1, + .vmux = 0, + .amux = 1, + },{ + .type = EM2820_VMUX_SVIDEO, + .vmux = 9, + .amux = 1, + }}, + }, + [EM2820_BOARD_HAUPPAUGE_WINTV_USB_2] = { + .name = "Hauppauge WinTV USB 2", + .vchannels = 3, + .norm = VIDEO_MODE_NTSC, + .tuner_type = TUNER_PHILIPS_FM1236_MK3, + .tda9887_conf = TDA9887_PRESENT|TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE, + .has_tuner = 1, + .decoder = EM2820_TVP5150, + .has_msp34xx = 1, + /*FIXME: S-Video not tested */ + .input = {{ + .type = EM2820_VMUX_TELEVISION, + .vmux = 0, + .amux = 0, + },{ + .type = EM2820_VMUX_SVIDEO, + .vmux = 2, + .amux = 1, + }}, + }, + [EM2820_BOARD_MSI_VOX_USB_2] = { + .name = "MSI VOX USB 2.0", + .vchannels = 3, + .norm = VIDEO_MODE_PAL, + .tuner_type = TUNER_PHILIPS_PAL, + .tda9887_conf = TDA9887_PRESENT|TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE, + .has_tuner = 1, + .decoder = EM2820_SAA7114, + .input = {{ + .type = EM2820_VMUX_TELEVISION, + .vmux = 2, + .amux = 0, + },{ + .type = EM2820_VMUX_COMPOSITE1, + .vmux = 0, + .amux = 1, + },{ + .type = EM2820_VMUX_SVIDEO, + .vmux = 9, + .amux = 1, + }}, + }, + { } /* Terminating entry */ +}; + +/* table of devices that work with this driver */ +struct usb_device_id em2820_id_table [] = { + /* Terratec Cinerhy 200 USB: em2800 nor supported, at the moment */ + /* { USB_DEVICE(0xeb1a, 0x2800), .driver_info = EM2800_BOARD_TERRATEC_CINERGY_200 }, */ + { USB_DEVICE(0x0ccd, 0x0036), .driver_info = EM2820_BOARD_TERRATEC_CINERGY_250 }, + { USB_DEVICE(0x2304, 0x0208), .driver_info = EM2820_BOARD_PINNACLE_USB_2 }, + { USB_DEVICE(0x2040, 0x4200), .driver_info = EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 }, + { USB_DEVICE(0xeb1a, 0x2820), .driver_info = EM2820_BOARD_MSI_VOX_USB_2 }, + { }, +}; + +void em2820_card_setup(struct em2820 *dev) +{ + /* request some modules */ + if (dev->model == EM2820_BOARD_HAUPPAUGE_WINTV_USB_2) { + struct tveeprom tv; +#ifdef CONFIG_MODULES + request_module("tveeprom"); +#endif + /* Call first TVeeprom */ + + tveeprom_hauppauge_analog(&dev->i2c_client, &tv, dev->eedata); + + dev->tuner_type= tv.tuner_type; + if (tv.audio_processor == AUDIO_CHIP_MSP34XX) { + dev->has_msp34xx=1; + } else dev->has_msp34xx=0; + } +} + +EXPORT_SYMBOL(em2820_boards); +EXPORT_SYMBOL(em2820_id_table); + +MODULE_DEVICE_TABLE (usb, em2820_id_table); diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c new file mode 100644 index 00000000000..a75a91da70e --- /dev/null +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -0,0 +1,807 @@ +/* + em2820-core.c - driver for Empia EM2820/2840 USB video capture devices + + Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> + Ludovico Cavedon <cavedon@sssup.it> + Mauro Carvalho Chehab <mchehab@brturbo.com.br> + + Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> + + 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/init.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/videodev.h> +#include <linux/usb.h> +#include <linux/vmalloc.h> + +#include "em2820.h" + +/* #define ENABLE_DEBUG_ISOC_FRAMES */ + +unsigned int core_debug = 0; +module_param(core_debug,int,0644); +MODULE_PARM_DESC(core_debug,"enable debug messages [core]"); + +#define em2820_coredbg(fmt, arg...) do {\ + if (core_debug) \ + printk(KERN_INFO "%s %s :"fmt, \ + dev->name, __FUNCTION__ , ##arg); } while (0) + +unsigned int reg_debug = 0; +module_param(reg_debug,int,0644); +MODULE_PARM_DESC(reg_debug,"enable debug messages [URB reg]"); + +#define em2820_regdbg(fmt, arg...) do {\ + if (reg_debug) \ + printk(KERN_INFO "%s %s :"fmt, \ + dev->name, __FUNCTION__ , ##arg); } while (0) + +unsigned int isoc_debug = 0; +module_param(isoc_debug,int,0644); +MODULE_PARM_DESC(core_debug,"enable debug messages [isoc transfers]"); + +#define em2820_isocdbg(fmt, arg...) do {\ + if (isoc_debug) \ + printk(KERN_INFO "%s %s :"fmt, \ + dev->name, __FUNCTION__ , ##arg); } while (0) + +static int alt = EM2820_PINOUT; +module_param(alt, int, 0644); +MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint"); + +/* ------------------------------------------------------------------ */ +/* debug help functions */ + +static const char *v4l1_ioctls[] = { + "0", "CGAP", "GCHAN", "SCHAN", "GTUNER", "STUNER", "GPICT", "SPICT", + "CCAPTURE", "GWIN", "SWIN", "GFBUF", "SFBUF", "KEY", "GFREQ", + "SFREQ", "GAUDIO", "SAUDIO", "SYNC", "MCAPTURE", "GMBUF", "GUNIT", + "GCAPTURE", "SCAPTURE", "SPLAYMODE", "SWRITEMODE", "GPLAYINFO", + "SMICROCODE", "GVBIFMT", "SVBIFMT" }; +#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls) + +static const char *v4l2_ioctls[] = { + "QUERYCAP", "1", "ENUM_PIXFMT", "ENUM_FBUFFMT", "G_FMT", "S_FMT", + "G_COMP", "S_COMP", "REQBUFS", "QUERYBUF", "G_FBUF", "S_FBUF", + "G_WIN", "S_WIN", "PREVIEW", "QBUF", "16", "DQBUF", "STREAMON", + "STREAMOFF", "G_PERF", "G_PARM", "S_PARM", "G_STD", "S_STD", + "ENUMSTD", "ENUMINPUT", "G_CTRL", "S_CTRL", "G_TUNER", "S_TUNER", + "G_FREQ", "S_FREQ", "G_AUDIO", "S_AUDIO", "35", "QUERYCTRL", + "QUERYMENU", "G_INPUT", "S_INPUT", "ENUMCVT", "41", "42", "43", + "44", "45", "G_OUTPUT", "S_OUTPUT", "ENUMOUTPUT", "G_AUDOUT", + "S_AUDOUT", "ENUMFX", "G_EFFECT", "S_EFFECT", "G_MODULATOR", + "S_MODULATOR" +}; +#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) + +void em2820_print_ioctl(char *name, unsigned int cmd) +{ + char *dir; + + switch (_IOC_DIR(cmd)) { + case _IOC_NONE: dir = "--"; break; + case _IOC_READ: dir = "r-"; break; + case _IOC_WRITE: dir = "-w"; break; + case _IOC_READ | _IOC_WRITE: dir = "rw"; break; + default: dir = "??"; break; + } + switch (_IOC_TYPE(cmd)) { + case 'v': + printk(KERN_DEBUG "%s: ioctl 0x%08x (v4l1, %s, VIDIOC%s)\n", + name, cmd, dir, (_IOC_NR(cmd) < V4L1_IOCTLS) ? + v4l1_ioctls[_IOC_NR(cmd)] : "???"); + break; + case 'V': + printk(KERN_DEBUG "%s: ioctl 0x%08x (v4l2, %s, VIDIOC_%s)\n", + name, cmd, dir, (_IOC_NR(cmd) < V4L2_IOCTLS) ? + v4l2_ioctls[_IOC_NR(cmd)] : "???"); + break; + default: + printk(KERN_DEBUG "%s: ioctl 0x%08x (???, %s, #%d)\n", + name, cmd, dir, _IOC_NR(cmd)); + } +} + +static void *rvmalloc(size_t size) +{ + void *mem; + unsigned long adr; + + size = PAGE_ALIGN(size); + + mem = vmalloc_32((unsigned long)size); + if (!mem) + return NULL; + + memset(mem, 0, size); + + adr = (unsigned long)mem; + while (size > 0) { + SetPageReserved(vmalloc_to_page((void *)adr)); + adr += PAGE_SIZE; + size -= PAGE_SIZE; + } + + return mem; +} + +static void rvfree(void *mem, size_t size) +{ + unsigned long adr; + + if (!mem) + return; + + size = PAGE_ALIGN(size); + + adr = (unsigned long)mem; + while (size > 0) { + ClearPageReserved(vmalloc_to_page((void *)adr)); + adr += PAGE_SIZE; + size -= PAGE_SIZE; + } + + vfree(mem); +} + +/* + * em2820_request_buffers() + * allocate a number of buffers + */ +u32 em2820_request_buffers(struct em2820 *dev, u32 count) +{ + const size_t imagesize = PAGE_ALIGN(dev->frame_size); /*needs to be page aligned cause the buffers can be mapped individually! */ + void *buff = NULL; + u32 i; + em2820_coredbg("requested %i buffers with size %i", count, imagesize); + if (count > EM2820_NUM_FRAMES) + count = EM2820_NUM_FRAMES; + + dev->num_frames = count; + while (dev->num_frames > 0) { + if ((buff = rvmalloc(dev->num_frames * imagesize))) + break; + dev->num_frames--; + } + + for (i = 0; i < dev->num_frames; i++) { + dev->frame[i].bufmem = buff + i * imagesize; + dev->frame[i].buf.index = i; + dev->frame[i].buf.m.offset = i * imagesize; + dev->frame[i].buf.length = dev->frame_size; + dev->frame[i].buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + dev->frame[i].buf.sequence = 0; + dev->frame[i].buf.field = V4L2_FIELD_NONE; + dev->frame[i].buf.memory = V4L2_MEMORY_MMAP; + dev->frame[i].buf.flags = 0; + } + return dev->num_frames; +} + +/* + * em2820_queue_unusedframes() + * add all frames that are not currently in use to the inbuffer queue + */ +void em2820_queue_unusedframes(struct em2820 *dev) +{ + unsigned long lock_flags; + u32 i; + + for (i = 0; i < dev->num_frames; i++) + if (dev->frame[i].state == F_UNUSED) { + dev->frame[i].state = F_QUEUED; + spin_lock_irqsave(&dev->queue_lock, lock_flags); + list_add_tail(&dev->frame[i].frame, &dev->inqueue); + spin_unlock_irqrestore(&dev->queue_lock, lock_flags); + } +} + +/* + * em2820_release_buffers() + * free frame buffers + */ +void em2820_release_buffers(struct em2820 *dev) +{ + if (dev->num_frames) { + rvfree(dev->frame[0].bufmem, + dev->num_frames * PAGE_ALIGN(dev->frame[0].buf.length)); + dev->num_frames = 0; + } +} + +/* + * em2820_read_reg_req() + * reads data from the usb device specifying bRequest + */ +int em2820_read_reg_req_len(struct em2820 *dev, u8 req, u16 reg, + char *buf, int len) +{ + int ret, byte; + + em2820_regdbg("req=%02x, reg=%02x ", req, reg); + + ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x0000, reg, buf, len, HZ); + + if (reg_debug){ + printk(ret < 0 ? " failed!\n" : "%02x values: ", ret); + for (byte = 0; byte < len; byte++) { + printk(" %02x", buf[byte]); + } + printk("\n"); + } + + return ret; +} + +/* + * em2820_read_reg_req() + * reads data from the usb device specifying bRequest + */ +int em2820_read_reg_req(struct em2820 *dev, u8 req, u16 reg) +{ + u8 val; + int ret; + + em2820_regdbg("req=%02x, reg=%02x:", req, reg); + + ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x0000, reg, &val, 1, HZ); + + if (reg_debug) + printk(ret < 0 ? " failed!\n" : "%02x\n", val); + + if (ret < 0) + return ret; + + return val; +} + +int em2820_read_reg(struct em2820 *dev, u16 reg) +{ + return em2820_read_reg_req(dev, USB_REQ_GET_STATUS, reg); +} + +/* + * em2820_write_regs_req() + * sends data to the usb device, specifying bRequest + */ +int em2820_write_regs_req(struct em2820 *dev, u8 req, u16 reg, char *buf, + int len) +{ + int ret; + + /*usb_control_msg seems to expect a kmalloced buffer */ + unsigned char *bufs = kmalloc(len, GFP_KERNEL); + + em2820_regdbg("req=%02x reg=%02x:", req, reg); + + if (reg_debug) { + int i; + for (i = 0; i < len; ++i) + printk (" %02x", (unsigned char)buf[i]); + printk ("\n"); + } + + if (!bufs) + return -ENOMEM; + memcpy(bufs, buf, len); + ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), req, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x0000, reg, bufs, len, HZ); + mdelay(5); /* FIXME: magic number */ + kfree(bufs); + return ret; +} + +int em2820_write_regs(struct em2820 *dev, u16 reg, char *buf, int len) +{ + return em2820_write_regs_req(dev, USB_REQ_GET_STATUS, reg, buf, len); +} + +/* + * em2820_write_reg_bits() + * sets only some bits (specified by bitmask) of a register, by first reading + * the actual value + */ +int em2820_write_reg_bits(struct em2820 *dev, u16 reg, u8 val, + u8 bitmask) +{ + int oldval; + u8 newval; + if ((oldval = em2820_read_reg(dev, reg)) < 0) + return oldval; + newval = (((u8) oldval) & ~bitmask) | (val & bitmask); + return em2820_write_regs(dev, reg, &newval, 1); +} + +/* + * em2820_write_ac97() + * write a 16 bit value to the specified AC97 address (LSB first!) + */ +int em2820_write_ac97(struct em2820 *dev, u8 reg, u8 * val) +{ + int ret; + u8 addr = reg & 0x7f; + if ((ret = em2820_write_regs(dev, AC97LSB_REG, val, 2)) < 0) + return ret; + if ((ret = em2820_write_regs(dev, AC97ADDR_REG, &addr, 1)) < 0) + return ret; + if ((ret = em2820_read_reg(dev, AC97BUSY_REG)) < 0) + return ret; + else if (((u8) ret) & 0x01) { + em2820_warn ("AC97 command still being exectuted: not handled properly!\n"); + } + return 0; +} + +int em2820_audio_analog_set(struct em2820 *dev) +{ + char s[2] = { 0x00, 0x00 }; + s[0] |= 0x1f - dev->volume; + s[1] |= 0x1f - dev->volume; + if (dev->mute) + s[1] |= 0x80; + return em2820_write_ac97(dev, MASTER_AC97, s); +} + + +int em2820_colorlevels_set_default(struct em2820 *dev) +{ + em2820_write_regs(dev, YGAIN_REG, "\x10", 1); /* contrast */ + em2820_write_regs(dev, YOFFSET_REG, "\x00", 1); /* brightness */ + em2820_write_regs(dev, UVGAIN_REG, "\x10", 1); /* saturation */ + em2820_write_regs(dev, UOFFSET_REG, "\x00", 1); + em2820_write_regs(dev, VOFFSET_REG, "\x00", 1); + em2820_write_regs(dev, SHARPNESS_REG, "\x00", 1); + + em2820_write_regs(dev, GAMMA_REG, "\x20", 1); + em2820_write_regs(dev, RGAIN_REG, "\x20", 1); + em2820_write_regs(dev, GGAIN_REG, "\x20", 1); + em2820_write_regs(dev, BGAIN_REG, "\x20", 1); + em2820_write_regs(dev, ROFFSET_REG, "\x00", 1); + em2820_write_regs(dev, GOFFSET_REG, "\x00", 1); + return em2820_write_regs(dev, BOFFSET_REG, "\x00", 1); +} + +int em2820_capture_start(struct em2820 *dev, int start) +{ + int ret; + /* FIXME: which is the best order? */ + /* video registers are sampled by VREF */ + if ((ret = em2820_write_reg_bits(dev, USBSUSP_REG, start ? 0x10 : 0x00, + 0x10)) < 0) + return ret; + /* enable video capture */ + return em2820_write_regs(dev, VINENABLE_REG, start ? "\x67" : "\x27", 1); +} + +int em2820_outfmt_set_yuv422(struct em2820 *dev) +{ + em2820_write_regs(dev, OUTFMT_REG, "\x34", 1); + em2820_write_regs(dev, VINMODE_REG, "\x10", 1); + return em2820_write_regs(dev, VINCTRL_REG, "\x11", 1); +} + +int em2820_accumulator_set(struct em2820 *dev, u8 xmin, u8 xmax, u8 ymin, + u8 ymax) +{ + em2820_coredbg("em2820 Scale: (%d,%d)-(%d,%d)\n", xmin, ymin, xmax, ymax); + + em2820_write_regs(dev, XMIN_REG, &xmin, 1); + em2820_write_regs(dev, XMAX_REG, &xmax, 1); + em2820_write_regs(dev, YMIN_REG, &ymin, 1); + return em2820_write_regs(dev, YMAX_REG, &ymax, 1); +} + +int em2820_capture_area_set(struct em2820 *dev, u8 hstart, u8 vstart, + u16 width, u16 height) +{ + u8 cwidth = width; + u8 cheight = height; + u8 overflow = (height >> 7 & 0x02) | (width >> 8 & 0x01); + + em2820_coredbg("em2820 Area Set: (%d,%d)\n", (width | (overflow & 2) << 7), + (height | (overflow & 1) << 8)); + + em2820_write_regs(dev, HSTART_REG, &hstart, 1); + em2820_write_regs(dev, VSTART_REG, &vstart, 1); + em2820_write_regs(dev, CWIDTH_REG, &cwidth, 1); + em2820_write_regs(dev, CHEIGHT_REG, &cheight, 1); + return em2820_write_regs(dev, OFLOW_REG, &overflow, 1); +} + +int em2820_scaler_set(struct em2820 *dev, u16 h, u16 v) +{ + u8 buf[2]; + buf[0] = h; + buf[1] = h >> 8; + em2820_write_regs(dev, HSCALELOW_REG, (char *)buf, 2); + buf[0] = v; + buf[1] = v >> 8; + em2820_write_regs(dev, VSCALELOW_REG, (char *)buf, 2); + /* when H and V mixershould be used? */ + /* return em2820_write_reg_bits(dev, COMPR_REG, (h ? 0x20 : 0x00) | (v ? 0x10 : 0x00), 0x30); */ + /* it seems that both H and V scalers must be active to work correctly */ + return em2820_write_reg_bits(dev, COMPR_REG, h + || v ? 0x30 : 0x00, 0x30); +} + +/* FIXME: this only function read values from dev */ +int em2820_resolution_set(struct em2820 *dev) +{ + int width, height; + width = norm_maxw(dev); + height = norm_maxh(dev) >> 1; + + em2820_outfmt_set_yuv422(dev); + em2820_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2); + em2820_capture_area_set(dev, 0, 0, width >> 2, height >> 2); + return em2820_scaler_set(dev, dev->hscale, dev->vscale); +} + + +/******************* isoc transfer handling ****************************/ + +#ifdef ENABLE_DEBUG_ISOC_FRAMES +static void em2820_isoc_dump(struct urb *urb, struct pt_regs *regs) +{ + int len = 0; + int ntrans = 0; + int i; + + printk(KERN_DEBUG "isocIrq: sf=%d np=%d ec=%x\n", + urb->start_frame, urb->number_of_packets, + urb->error_count); + for (i = 0; i < urb->number_of_packets; i++) { + unsigned char *buf = + urb->transfer_buffer + + urb->iso_frame_desc[i].offset; + int alen = urb->iso_frame_desc[i].actual_length; + if (alen > 0) { + if (buf[0] == 0x88) { + ntrans++; + len += alen; + } else if (buf[0] == 0x22) { + printk(KERN_DEBUG + "= l=%d nt=%d bpp=%d\n", + len - 4 * ntrans, ntrans, + ntrans == 0 ? 0 : len / ntrans); + ntrans = 1; + len = alen; + } else + printk(KERN_DEBUG "!\n"); + } + printk(KERN_DEBUG " n=%d s=%d al=%d %x\n", i, + urb->iso_frame_desc[i].status, + urb->iso_frame_desc[i].actual_length, + (unsigned int) + *((unsigned char *)(urb->transfer_buffer + + urb->iso_frame_desc[i]. + offset))); + } +} +#endif + +static inline int em2820_isoc_video(struct em2820 *dev,struct em2820_frame_t **f, + unsigned long *lock_flags, unsigned char buf) +{ + if (!(buf & 0x01)) { + if ((*f)->state == F_GRABBING) { + /*previous frame is incomplete */ + if ((*f)->fieldbytesused < dev->field_size) { + (*f)->state = F_ERROR; + em2820_isocdbg ("dropping incomplete bottom field (%i missing bytes)", + dev->field_size-(*f)->fieldbytesused); + } else { + (*f)->state = F_DONE; + (*f)->buf.bytesused = dev->frame_size; + } + } + if ((*f)->state == F_DONE || (*f)->state == F_ERROR) { + /* move current frame to outqueue and get next free buffer from inqueue */ + spin_lock_irqsave(&dev-> queue_lock, *lock_flags); + list_move_tail(&(*f)->frame, &dev->outqueue); + if (!list_empty(&dev->inqueue)) + (*f) = list_entry(dev-> inqueue.next, + struct em2820_frame_t,frame); + else + (*f) = NULL; + spin_unlock_irqrestore(&dev->queue_lock,*lock_flags); + } + if (!(*f)) { + em2820_isocdbg ("new frame but no buffer is free"); + return -1; + } + do_gettimeofday(&(*f)->buf.timestamp); + (*f)->buf.sequence = ++dev->frame_count; + (*f)->buf.field = V4L2_FIELD_INTERLACED; + (*f)->state = F_GRABBING; + (*f)->buf.bytesused = 0; + (*f)->top_field = 1; + (*f)->fieldbytesused = 0; + } else { + /* acquiring bottom field */ + if ((*f)->state == F_GRABBING) { + if (!(*f)->top_field) { + (*f)->state = F_ERROR; + em2820_isocdbg ("unexpected begin of bottom field; discarding it"); + } else if ((*f)-> fieldbytesused < dev->field_size - 172) { + (*f)->state = F_ERROR; + em2820_isocdbg ("dropping incomplete top field (%i missing bytes)", + dev->field_size-(*f)->fieldbytesused); + } else { + (*f)->top_field = 0; + (*f)->fieldbytesused = 0; + } + } + } + return (0); +} + +static inline void em2820_isoc_video_copy(struct em2820 *dev, + struct em2820_frame_t **f, unsigned char *buf, int len) +{ + void *fieldstart, *startwrite, *startread; + int linesdone, currlinedone, offset, lencopy,remain; + + if ((*f)->fieldbytesused + len > dev->field_size) + len =dev->field_size - (*f)->fieldbytesused; + remain = len; + startread = buf + 4; + if ((*f)->top_field) + fieldstart = (*f)->bufmem; + else + fieldstart = (*f)->bufmem + dev->bytesperline; + + linesdone = (*f)->fieldbytesused / dev->bytesperline; + currlinedone = (*f)->fieldbytesused % dev->bytesperline; + offset = linesdone * dev->bytesperline * 2 + currlinedone; + startwrite = fieldstart + offset; + lencopy = dev->bytesperline - currlinedone; + lencopy = lencopy > remain ? remain : lencopy; + + memcpy(startwrite, startread, lencopy); + remain -= lencopy; + + while (remain > 0) { + startwrite += lencopy + dev->bytesperline; + startread += lencopy; + if (dev->bytesperline > remain) + lencopy = remain; + else + lencopy = dev->bytesperline; + + memcpy(startwrite, startread, lencopy); + remain -= lencopy; + } + + (*f)->fieldbytesused += len; +} + +/* + * em2820_isoIrq() + * handles the incoming isoc urbs and fills the frames from our inqueue + */ +void em2820_isocIrq(struct urb *urb, struct pt_regs *regs) +{ + struct em2820 *dev = urb->context; + int i, status; + struct em2820_frame_t **f; + unsigned long lock_flags; + + if (!dev) + return; +#ifdef ENABLE_DEBUG_ISOC_FRAMES + if (isoc_debug>1) + em2820_isoc_dump(urb, regs); +#endif + + if (urb->status == -ENOENT) + return; + + f = &dev->frame_current; + + if (dev->stream == STREAM_INTERRUPT) { + dev->stream = STREAM_OFF; + if ((*f)) + (*f)->state = F_QUEUED; + em2820_isocdbg("stream interrupted"); + wake_up_interruptible(&dev->wait_stream); + } + + if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) + return; + + if (dev->stream == STREAM_ON && !list_empty(&dev->inqueue)) { + if (!(*f)) + (*f) = list_entry(dev->inqueue.next, + struct em2820_frame_t, frame); + + for (i = 0; i < urb->number_of_packets; i++) { + unsigned char *buf = urb->transfer_buffer + + urb->iso_frame_desc[i].offset; + int len = urb->iso_frame_desc[i].actual_length - 4; + + if (urb->iso_frame_desc[i].status) { + em2820_isocdbg("data error: [%d] len=%d, status=%d", i, + urb->iso_frame_desc[i].actual_length, + urb->iso_frame_desc[i].status); + continue; + } + if (urb->iso_frame_desc[i].actual_length <= 0) { + em2820_isocdbg("packet %d is empty",i); + continue; + } + if (urb->iso_frame_desc[i].actual_length > + dev->max_pkt_size) { + em2820_isocdbg("packet bigger than packet size"); + continue; + } + /*new frame */ + if (buf[0] == 0x22 && buf[1] == 0x5a) { + em2820_isocdbg("Video frame, length=%i!",len); + + if (em2820_isoc_video(dev,f,&lock_flags,buf[2])) + break; + } else if (buf[0]==0x33 && buf[1]==0x95 && buf[2]==0x00) { + em2820_isocdbg("VBI HEADER!!!"); + } + + /* actual copying */ + if ((*f)->state == F_GRABBING) { + em2820_isoc_video_copy(dev,f,buf, len); + } + } + } + + for (i = 0; i < urb->number_of_packets; i++) { + urb->iso_frame_desc[i].status = 0; + urb->iso_frame_desc[i].actual_length = 0; + } + + urb->status = 0; + if ((status = usb_submit_urb(urb, GFP_ATOMIC))) { + em2820_errdev("resubmit of urb failed (error=%i)\n", status); + dev->state |= DEV_MISCONFIGURED; + } + wake_up_interruptible(&dev->wait_frame); + return; +} + +/* + * em2820_uninit_isoc() + * deallocates the buffers and urbs allocated during em2820_init_iosc() + */ +void em2820_uninit_isoc(struct em2820 *dev) +{ + int i; + + for (i = 0; i < EM2820_NUM_BUFS; i++) { + if (dev->urb[i]) { + usb_kill_urb(dev->urb[i]); + usb_free_urb(dev->urb[i]); + } + dev->urb[i] = NULL; + if (dev->transfer_buffer[i]) + kfree(dev->transfer_buffer[i]); + dev->transfer_buffer[i] = NULL; + } + em2820_capture_start(dev, 0); +} + +/* + * em2820_init_isoc() + * allocates transfer buffers and submits the urbs for isoc transfer + */ +int em2820_init_isoc(struct em2820 *dev) +{ + /* change interface to 3 which allowes the biggest packet sizes */ + int i, errCode; + const int sb_size = EM2820_NUM_PACKETS * dev->max_pkt_size; + + /* reset streaming vars */ + dev->frame_current = NULL; + dev->frame_count = 0; + + /* allocate urbs */ + for (i = 0; i < EM2820_NUM_BUFS; i++) { + struct urb *urb; + int j, k; + /* allocate transfer buffer */ + dev->transfer_buffer[i] = kmalloc(sb_size, GFP_KERNEL); + if (!dev->transfer_buffer[i]) { + em2820_errdev + ("unable to allocate %i bytes for transfer buffer %i\n", + sb_size, i); + em2820_uninit_isoc(dev); + return -ENOMEM; + } + memset(dev->transfer_buffer[i], 0, sb_size); + urb = usb_alloc_urb(EM2820_NUM_PACKETS, GFP_KERNEL); + if (urb) { + urb->dev = dev->udev; + urb->context = dev; + urb->pipe = usb_rcvisocpipe(dev->udev, 0x82); + urb->transfer_flags = URB_ISO_ASAP; + urb->interval = 1; + urb->transfer_buffer = dev->transfer_buffer[i]; + urb->complete = em2820_isocIrq; + urb->number_of_packets = EM2820_NUM_PACKETS; + urb->transfer_buffer_length = sb_size; + for (j = k = 0; j < EM2820_NUM_PACKETS; + j++, k += dev->max_pkt_size) { + urb->iso_frame_desc[j].offset = k; + urb->iso_frame_desc[j].length = + dev->max_pkt_size; + } + dev->urb[i] = urb; + } else { + em2820_errdev("cannot alloc urb %i\n", i); + em2820_uninit_isoc(dev); + return -ENOMEM; + } + } + + /* submit urbs */ + for (i = 0; i < EM2820_NUM_BUFS; i++) { + errCode = usb_submit_urb(dev->urb[i], GFP_KERNEL); + if (errCode) { + em2820_errdev("submit of urb %i failed (error=%i)\n", i, + errCode); + em2820_uninit_isoc(dev); + return errCode; + } + } + + return 0; +} + +int em2820_set_alternate(struct em2820 *dev) +{ + int errCode, prev_alt = dev->alt; + dev->alt = alt; + if (dev->alt == 0) { + int i; + unsigned int min_pkt_size = dev->field_size / 137; /* FIXME: empiric magic number */ + em2820_coredbg("minimum isoc packet size: %u", min_pkt_size); + dev->alt = 7; + for (i = 1; i < EM2820_MAX_ALT; i += 2) /* FIXME: skip even alternate: why do they not work? */ + if (dev->alt_max_pkt_size[i] >= min_pkt_size) { + dev->alt = i; + break; + } + } + + if (dev->alt != prev_alt) { + dev->max_pkt_size = dev->alt_max_pkt_size[dev->alt]; + em2820_coredbg("setting alternate %d with wMaxPacketSize=%u", dev->alt, + dev->max_pkt_size); + errCode = usb_set_interface(dev->udev, 0, dev->alt); + if (errCode < 0) { + em2820_errdev + ("cannot change alternate number to %d (error=%i)\n", + dev->alt, errCode); + return errCode; + } + } + return 0; +} diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c new file mode 100644 index 00000000000..95f80a7615b --- /dev/null +++ b/drivers/media/video/em28xx/em28xx-i2c.c @@ -0,0 +1,443 @@ +/* + em2820-i2c.c - driver for Empia EM2820/2840 USB video capture devices + + Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> + Ludovico Cavedon <cavedon@sssup.it> + Mauro Carvalho Chehab <mchehab@brturbo.com.br> + + Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> + + 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/module.h> +#include <linux/kernel.h> +#include <linux/usb.h> +#include <linux/i2c.h> +#include <linux/videodev.h> +#include <media/tuner.h> +#include <linux/video_decoder.h> + +/* To be moved to compat.h */ +#if !defined(I2C_HW_B_EM2820) +#define I2C_HW_B_EM2820 I2C_HW_B_BT848 +#endif + +#include "em2820.h" + +/* ----------------------------------------------------------- */ + +static unsigned int i2c_scan = 0; +module_param(i2c_scan, int, 0444); +MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time"); + +static unsigned int i2c_debug = 0; +module_param(i2c_debug, int, 0644); +MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]"); + +#define dprintk(fmt, args...) if (i2c_debug) do {\ + printk(KERN_DEBUG "%s: %s: " fmt "\n",\ + dev->name, __FUNCTION__ , ##args); } while (0) +#define dprintk1(fmt, args...) if (i2c_debug) do{ \ + printk(KERN_DEBUG "%s: %s: " fmt, \ + dev->name, __FUNCTION__ , ##args); } while (0) +#define dprintk2(fmt, args...) if (i2c_debug) do {\ + printk(fmt , ##args); } while (0) + +/* + * i2c_send_bytes() + * untested for more than 4 bytes + */ +static int i2c_send_bytes(void *data, unsigned char addr, char *buf, short len, + int stop) +{ + int wrcount = 0; + struct em2820 *dev = (struct em2820 *)data; + + wrcount = dev->em2820_write_regs_req(dev, stop ? 2 : 3, addr, buf, len); + + return wrcount; +} + +/* + * i2c_recv_byte() + * read a byte from the i2c device + */ +static int i2c_recv_bytes(struct em2820 *dev, unsigned char addr, char *buf, + int len) +{ + int ret; + ret = dev->em2820_read_reg_req_len(dev, 2, addr, buf, len); + if (ret < 0) { + em2820_warn("reading i2c device failed (error=%i)\n", ret); + return ret; + } + if (dev->em2820_read_reg(dev, 0x5) != 0) + return -ENODEV; + return ret; +} + +/* + * i2c_check_for_device() + * check if there is a i2c_device at the supplied address + */ +static int i2c_check_for_device(struct em2820 *dev, unsigned char addr) +{ + char msg; + int ret; + msg = addr; + + ret = dev->em2820_read_reg_req(dev, 2, addr); + if (ret < 0) { + em2820_warn("reading from i2c device failed (error=%i)\n", ret); + return ret; + } + if (dev->em2820_read_reg(dev, 0x5) != 0) + return -ENODEV; + return 0; +} + +/* + * em2820_i2c_xfer() + * the main i2c transfer function + */ +static int em2820_i2c_xfer(struct i2c_adapter *i2c_adap, + struct i2c_msg msgs[], int num) +{ + struct em2820 *dev = i2c_adap->algo_data; + int addr, rc, i, byte; + + if (num <= 0) + return 0; + for (i = 0; i < num; i++) { + addr = msgs[i].addr << 1; + dprintk1("%s %s addr=%x len=%d:", + (msgs[i].flags & I2C_M_RD) ? "read" : "write", + i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len); + if (!msgs[i].len) { /* no len: check only for device presence */ + rc = i2c_check_for_device(dev, addr); + if (rc < 0) { + dprintk2(" no device\n"); + return rc; + } + + } + if (msgs[i].flags & I2C_M_RD) { + /* read bytes */ + + rc = i2c_recv_bytes(dev, addr, msgs[i].buf, + msgs[i].len); + if (i2c_debug) { + for (byte = 0; byte < msgs[i].len; byte++) { + printk(" %02x", msgs[i].buf[byte]); + } + } + } else { + /* write bytes */ + if (i2c_debug) { + for (byte = 0; byte < msgs[i].len; byte++) + printk(" %02x", msgs[i].buf[byte]); + } + rc = i2c_send_bytes(dev, addr, msgs[i].buf, msgs[i].len, + i == num - 1); + if (rc < 0) + goto err; + } + if (i2c_debug) + printk("\n"); + } + + return num; + err: + dprintk2(" ERROR: %i\n", rc); + return rc; +} + +static int em2820_i2c_eeprom(struct em2820 *dev, unsigned char *eedata, int len) +{ + unsigned char buf, *p = eedata; + struct em2820_eeprom *em_eeprom = (void *)eedata; + int i, err, size = len, block; + + dev->i2c_client.addr = 0xa0 >> 1; + buf = 0; + if (1 != (err = i2c_master_send(&dev->i2c_client, &buf, 1))) { + printk(KERN_INFO "%s: Huh, no eeprom present (err=%d)?\n", + dev->name, err); + return -1; + } + while (size > 0) { + if (size > 16) + block = 16; + else + block = size; + + if (block != + (err = i2c_master_recv(&dev->i2c_client, p, block))) { + printk(KERN_WARNING + "%s: i2c eeprom read error (err=%d)\n", + dev->name, err); + return -1; + } + size -= block; + p += block; + } + for (i = 0; i < len; i++) { + if (0 == (i % 16)) + printk(KERN_INFO "%s: i2c eeprom %02x:", dev->name, i); + printk(" %02x", eedata[i]); + if (15 == (i % 16)) + printk("\n"); + } + + printk(KERN_INFO "EEPROM ID= 0x%08x\n", em_eeprom->id); + printk(KERN_INFO "Vendor/Product ID= %04x:%04x\n", em_eeprom->vendor_ID, + em_eeprom->product_ID); + + switch (em_eeprom->chip_conf >> 4 & 0x3) { + case 0: + printk(KERN_INFO "No audio on board.\n"); + break; + case 1: + printk(KERN_INFO "AC97 audio (5 sample rates)\n"); + break; + case 2: + printk(KERN_INFO "I2S audio, sample rate=32k\n"); + break; + case 3: + printk(KERN_INFO "I2S audio, 3 sample rates\n"); + break; + } + + if (em_eeprom->chip_conf & 1 << 3) + printk(KERN_INFO "USB Remote wakeup capable\n"); + + if (em_eeprom->chip_conf & 1 << 2) + printk(KERN_INFO "USB Self power capable\n"); + + switch (em_eeprom->chip_conf & 0x3) { + case 0: + printk(KERN_INFO "500mA max power\n"); + break; + case 1: + printk(KERN_INFO "400mA max power\n"); + break; + case 2: + printk(KERN_INFO "300mA max power\n"); + break; + case 3: + printk(KERN_INFO "200mA max power\n"); + break; + } + + return 0; +} + +/* ----------------------------------------------------------- */ + +/* + * algo_control() + */ +static int algo_control(struct i2c_adapter *adapter, + unsigned int cmd, unsigned long arg) +{ + return 0; +} + +/* + * functionality() + */ +static u32 functionality(struct i2c_adapter *adap) +{ + return I2C_FUNC_SMBUS_EMUL; +} + +#ifndef I2C_PEC +static void inc_use(struct i2c_adapter *adap) +{ + MOD_INC_USE_COUNT; +} + +static void dec_use(struct i2c_adapter *adap) +{ + MOD_DEC_USE_COUNT; +} +#endif + +static int em2820_set_tuner(int check_eeprom, struct i2c_client *client) +{ + struct em2820 *dev = client->adapter->algo_data; + + struct tuner_setup tun_setup; + + /* tuner */ + if (dev->has_tuner) { + tun_setup.mode_mask = T_ANALOG_TV | T_RADIO; + tun_setup.type = dev->tuner_type; + tun_setup.addr = dev->tuner_addr; + + em2820_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup); + } + return (0); +} + +/* + * attach_inform() + * gets called when a device attaches to the i2c bus + * does some basic configuration + */ +static int attach_inform(struct i2c_client *client) +{ + struct em2820 *dev = client->adapter->algo_data; + + dprintk("address %x", client->addr << 1); + switch (client->addr << 1) { + case 0x68: + em2820_i2c_call_clients(dev, TDA9887_SET_CONFIG, &dev->tda9887_conf); + break; + case 0x4a: + dprintk1("attach_inform: saa7113 detected.\n"); + break; + case 0xa0: + dprintk1("attach_inform: eeprom detected.\n"); + break; + case 0x80: + case 0x88: + dprintk1("attach_inform: msp34xx detected.\n"); + break; + case 0xb8: + case 0xba: + dprintk1("attach_inform: tvp5150 detected.\n"); + break; + default: + dev->tuner_addr = client->addr; + em2820_set_tuner(-1, client); + } + + return 0; +} + +static struct i2c_algorithm em2820_algo = { + .name = "em2820", + .id = I2C_HW_B_EM2820, + .master_xfer = em2820_i2c_xfer, + .algo_control = algo_control, + .functionality = functionality, +}; + +static struct i2c_adapter em2820_adap_template = { +#ifdef I2C_PEC + .owner = THIS_MODULE, +#else + .inc_use = inc_use, + .dec_use = dec_use, +#endif +#ifdef I2C_CLASS_TV_ANALOG + .class = I2C_CLASS_TV_ANALOG, +#endif + .name = "em2820", + .id = I2C_HW_B_EM2820, + .algo = &em2820_algo, + .client_register = attach_inform, +}; + +static struct i2c_client em2820_client_template = { + .name = "em2820 internal", + .flags = I2C_CLIENT_ALLOW_USE, +}; + +/* ----------------------------------------------------------- */ + +/* + * i2c_devs + * incomplete list of known devices + */ +static char *i2c_devs[128] = { + [0x4a >> 1] = "saa7113h", + [0x60 >> 1] = "remote IR sensor", + [0x86 >> 1] = "tda9887", + [0x80 >> 1] = "msp34xx", + [0x88 >> 1] = "msp34xx", + [0xa0 >> 1] = "eeprom", + [0xb8 >> 1] = "tvp5150a", + [0xba >> 1] = "tvp5150a", + [0xc0 >> 1] = "tuner (analog)", + [0xc2 >> 1] = "tuner (analog)", + [0xc4 >> 1] = "tuner (analog)", + [0xc6 >> 1] = "tuner (analog)", +}; + +/* + * do_i2c_scan() + * check i2c address range for devices + */ +static void do_i2c_scan(char *name, struct i2c_client *c) +{ + unsigned char buf; + int i, rc; + + for (i = 0; i < 128; i++) { + c->addr = i; + rc = i2c_master_recv(c, &buf, 0); + if (rc < 0) + continue; + printk(KERN_INFO "%s: found device @ 0x%x [%s]", name, + i << 1, i2c_devs[i] ? i2c_devs[i] : "???"); + } +} + +/* + * em2820_i2c_call_clients() + * send commands to all attached i2c devices + */ +void em2820_i2c_call_clients(struct em2820 *dev, unsigned int cmd, void *arg) +{ + BUG_ON(NULL == dev->i2c_adap.algo_data); + i2c_clients_command(&dev->i2c_adap, cmd, arg); +} + +/* + * em2820_i2c_register() + * register i2c bus + */ +int em2820_i2c_register(struct em2820 *dev) +{ + BUG_ON(!dev->em2820_write_regs || !dev->em2820_read_reg); + BUG_ON(!dev->em2820_write_regs_req || !dev->em2820_read_reg_req); + dev->i2c_adap = em2820_adap_template; + dev->i2c_adap.dev.parent = &dev->udev->dev; + strcpy(dev->i2c_adap.name, dev->name); + dev->i2c_adap.algo_data = dev; + i2c_add_adapter(&dev->i2c_adap); + + dev->i2c_client = em2820_client_template; + dev->i2c_client.adapter = &dev->i2c_adap; + + em2820_i2c_eeprom(dev, dev->eedata, sizeof(dev->eedata)); + + if (i2c_scan) + do_i2c_scan(dev->name, &dev->i2c_client); + return 0; +} + +/* + * em2820_i2c_unregister() + * unregister i2c_bus + */ +int em2820_i2c_unregister(struct em2820 *dev) +{ + i2c_del_adapter(&dev->i2c_adap); + return 0; +} diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c new file mode 100644 index 00000000000..a000131a8f5 --- /dev/null +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -0,0 +1,1815 @@ +/* + em2820-video.c - driver for Empia EM2820/2840 USB video capture devices + + Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> + Ludovico Cavedon <cavedon@sssup.it> + Mauro Carvalho Chehab <mchehab@brturbo.com.br> + + Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> + + 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/init.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/usb.h> +#include <linux/videodev.h> +#include <linux/i2c.h> +#include <media/tuner.h> +#include <linux/video_decoder.h> + +#include "em2820.h" + +#define DRIVER_AUTHOR "Markus Rechberger <mrechberger@gmail.com>, " \ + "Ludovico Cavedon <cavedon@sssup.it>, " \ + "Mauro Carvalho Chehab <mchehab@brturbo.com.br>" + +#define DRIVER_NAME "em2820" +#define DRIVER_DESC "Empia em2820 based USB video device driver" +#define EM2820_VERSION_CODE KERNEL_VERSION(0, 0, 1) + +#define em2820_videodbg(fmt, arg...) do {\ + if (video_debug) \ + printk(KERN_INFO "%s %s :"fmt, \ + dev->name, __FUNCTION__ , ##arg); } while (0) + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +static int tuner = -1; +module_param(tuner, int, 0444); +MODULE_PARM_DESC(tuner, "tuner type"); + +static unsigned int video_debug = 0; +module_param(video_debug,int,0644); +MODULE_PARM_DESC(video_debug,"enable debug messages [video]"); + +/* supported tv norms */ +static struct em2820_tvnorm tvnorms[] = { + { + .name = "PAL", + .id = V4L2_STD_PAL, + .mode = VIDEO_MODE_PAL, + }, { + .name = "NTSC", + .id = V4L2_STD_NTSC, + .mode = VIDEO_MODE_NTSC, + }, { + .name = "SECAM", + .id = V4L2_STD_SECAM, + .mode = VIDEO_MODE_SECAM, + }, { + .name = "PAL-M", + .id = V4L2_STD_PAL_M, + .mode = VIDEO_MODE_PAL, + } +}; + +#define TVNORMS ARRAY_SIZE(tvnorms) + +/* supported controls */ +static struct v4l2_queryctrl em2820_qctrl[] = { + { + .id = V4L2_CID_BRIGHTNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Brightness", + .minimum = -128, + .maximum = 127, + .step = 1, + .default_value = 0, + .flags = 0, + },{ + .id = V4L2_CID_CONTRAST, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Contrast", + .minimum = 0x0, + .maximum = 0x1f, + .step = 0x1, + .default_value = 0x10, + .flags = 0, + },{ + .id = V4L2_CID_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Saturation", + .minimum = 0x0, + .maximum = 0x1f, + .step = 0x1, + .default_value = 0x10, + .flags = 0, + },{ + .id = V4L2_CID_AUDIO_VOLUME, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Volume", + .minimum = 0x0, + .maximum = 0x1f, + .step = 0x1, + .default_value = 0x1f, + .flags = 0, + },{ + .id = V4L2_CID_AUDIO_MUTE, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Mute", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1, + .flags = 0, + },{ + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Red chroma balance", + .minimum = -128, + .maximum = 127, + .step = 1, + .default_value = 0, + .flags = 0, + },{ + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Blue chroma balance", + .minimum = -128, + .maximum = 127, + .step = 1, + .default_value = 0, + .flags = 0, + },{ + .id = V4L2_CID_GAMMA, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gamma", + .minimum = 0x0, + .maximum = 0x3f, + .step = 0x1, + .default_value = 0x20, + .flags = 0, + } +}; + +static struct usb_driver em2820_usb_driver; + +static DECLARE_MUTEX(em2820_sysfs_lock); +static DECLARE_RWSEM(em2820_disconnect); + +/********************* v4l2 interface ******************************************/ + +static inline unsigned long kvirt_to_pa(unsigned long adr) +{ + unsigned long kva, ret; + + kva = (unsigned long)page_address(vmalloc_to_page((void *)adr)); + kva |= adr & (PAGE_SIZE - 1); + ret = __pa(kva); + return ret; +} + +/* + * em2820_config() + * inits registers with sane defaults + */ +static int em2820_config(struct em2820 *dev) +{ + + /* Sets I2C speed to 100 KHz */ + em2820_write_regs_req(dev, 0x00, 0x06, "\x40", 1); + + /* enable vbi capturing */ + em2820_audio_usb_mute(dev, 1); + dev->mute = 1; /* maybe not the right place... */ + dev->volume = 0x1f; + em2820_audio_analog_set(dev); + em2820_audio_analog_setup(dev); + em2820_outfmt_set_yuv422(dev); + em2820_colorlevels_set_default(dev); + em2820_compression_disable(dev); + + return 0; +} + +/* + * em2820_config_i2c() + * configure i2c attached devices + */ +void em2820_config_i2c(struct em2820 *dev) +{ + struct v4l2_frequency f; + struct video_decoder_init em2820_vdi = {.data = NULL }; + + + /* configure decoder */ + em2820_i2c_call_clients(dev, DECODER_INIT, &em2820_vdi); + em2820_i2c_call_clients(dev, DECODER_SET_INPUT, &dev->ctl_input); +/* em2820_i2c_call_clients(dev,DECODER_SET_PICTURE, &dev->vpic); */ +/* em2820_i2c_call_clients(dev,DECODER_SET_NORM,&dev->tvnorm->id); */ +/* em2820_i2c_call_clients(dev,DECODER_ENABLE_OUTPUT,&output); */ +/* em2820_i2c_call_clients(dev,DECODER_DUMP, NULL); */ + + /* configure tuner */ + f.tuner = 0; + f.type = V4L2_TUNER_ANALOG_TV; + f.frequency = 9076; /* FIXME:remove magic number */ + dev->ctl_freq = f.frequency; + em2820_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f); + + /* configure tda9887 */ + + em2820_i2c_call_clients(dev, TDA9887_SET_CONFIG, &dev->tda9887_conf); + +/* em2820_i2c_call_clients(dev,VIDIOC_S_STD,&dev->tvnorm->id); */ +} + +/* + * em2820_empty_framequeues() + * prepare queues for incoming and outgoing frames + */ +static void em2820_empty_framequeues(struct em2820 *dev) +{ + u32 i; + + INIT_LIST_HEAD(&dev->inqueue); + INIT_LIST_HEAD(&dev->outqueue); + + for (i = 0; i < EM2820_NUM_FRAMES; i++) { + dev->frame[i].state = F_UNUSED; + dev->frame[i].buf.bytesused = 0; + } +} + +/* + * em2820_v4l2_open() + * inits the device and starts isoc transfer + */ +static int em2820_v4l2_open(struct inode *inode, struct file *filp) +{ + struct video_device *vdev = video_devdata(filp); + int minor = iminor(inode); + struct em2820 *dev = (struct em2820 *)video_get_drvdata(vdev); + int errCode = 0; + + em2820_videodbg("users=%d", dev->users); + + if (!down_read_trylock(&em2820_disconnect)) + return -ERESTARTSYS; + + if (dev->users) { + em2820_warn("this driver can be opened only once\n"); + up_read(&em2820_disconnect); + return -EBUSY; + } + +/* if(dev->vbi_dev->minor == minor){ + dev->type=V4L2_BUF_TYPE_VBI_CAPTURE; + }*/ + if (dev->vdev->minor == minor) { + dev->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + } + + init_MUTEX(&dev->fileop_lock); /* to 1 == available */ + spin_lock_init(&dev->queue_lock); + init_waitqueue_head(&dev->wait_frame); + init_waitqueue_head(&dev->wait_stream); + + down(&dev->lock); + + em2820_set_alternate(dev); + + dev->width = norm_maxw(dev); + dev->height = norm_maxh(dev); + dev->frame_size = dev->width * dev->height * 2; + dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ + dev->bytesperline = dev->width * 2; + dev->hscale = 0; + dev->vscale = 0; + + em2820_capture_start(dev, 1); + em2820_resolution_set(dev); + + /* start the transfer */ + errCode = em2820_init_isoc(dev); + if (errCode) + goto err; + + dev->users++; + filp->private_data = dev; + dev->io = IO_NONE; + dev->stream = STREAM_OFF; + dev->num_frames = 0; + + /* prepare queues */ + em2820_empty_framequeues(dev); + + dev->state |= DEV_INITIALIZED; + + err: + up(&dev->lock); + up_read(&em2820_disconnect); + return errCode; +} + +/* + * em2820_realease_resources() + * unregisters the v4l2,i2c and usb devices + * called when the device gets disconected or at module unload +*/ +static void em2820_release_resources(struct em2820 *dev) +{ + down(&em2820_sysfs_lock); + + em2820_info("V4L2 device /dev/video%d deregistered\n", + dev->vdev->minor); + video_set_drvdata(dev->vdev, NULL); + video_unregister_device(dev->vdev); +/* video_unregister_device(dev->vbi_dev); */ + em2820_i2c_unregister(dev); + usb_put_dev(dev->udev); + up(&em2820_sysfs_lock); +} + +/* + * em2820_v4l2_close() + * stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls + */ +static int em2820_v4l2_close(struct inode *inode, struct file *file) +{ + struct video_device *vdev = video_devdata(file); + struct em2820 *dev = (struct em2820 *)video_get_drvdata(vdev); + int errCode; + + em2820_videodbg("users=%d", dev->users); + + down(&dev->lock); + + em2820_uninit_isoc(dev); + + em2820_release_buffers(dev); + + /* the device is already disconnect, free the remaining resources */ + if (dev->state & DEV_DISCONNECTED) { + em2820_release_resources(dev); + up(&dev->lock); + kfree(dev); + return 0; + } + + /* set alternate 0 */ + dev->alt = 0; + em2820_videodbg("setting alternate 0"); + errCode = usb_set_interface(dev->udev, 0, 0); + if (errCode < 0) { + em2820_errdev ("cannot change alternate number to 0 (error=%i)\n", + errCode); + } + + dev->users--; + wake_up_interruptible_nr(&dev->open, 1); + up(&dev->lock); + return 0; +} + +/* + * em2820_v4l2_read() + * will allocate buffers when called for the first time + */ +static ssize_t +em2820_v4l2_read(struct file *filp, char __user * buf, size_t count, + loff_t * f_pos) +{ + struct em2820 *dev = video_get_drvdata(video_devdata(filp)); + struct em2820_frame_t *f, *i; + unsigned long lock_flags; + int ret = 0; + + if (down_interruptible(&dev->fileop_lock)) + return -ERESTARTSYS; + + if (dev->state & DEV_DISCONNECTED) { + em2820_videodbg("device not present"); + up(&dev->fileop_lock); + return -ENODEV; + } + + if (dev->state & DEV_MISCONFIGURED) { + em2820_videodbg("device misconfigured; close and open it again"); + up(&dev->fileop_lock); + return -EIO; + } + + if (dev->io == IO_MMAP) { + em2820_videodbg ("IO method is set to mmap; close and open" + " the device again to choose the read method"); + up(&dev->fileop_lock); + return -EINVAL; + } + + if (dev->io == IO_NONE) { + if (!em2820_request_buffers(dev, EM2820_NUM_READ_FRAMES)) { + em2820_errdev("read failed, not enough memory\n"); + up(&dev->fileop_lock); + return -ENOMEM; + } + dev->io = IO_READ; + dev->stream = STREAM_ON; + em2820_queue_unusedframes(dev); + } + + if (!count) { + up(&dev->fileop_lock); + return 0; + } + + if (list_empty(&dev->outqueue)) { + if (filp->f_flags & O_NONBLOCK) { + up(&dev->fileop_lock); + return -EAGAIN; + } + ret = wait_event_interruptible + (dev->wait_frame, + (!list_empty(&dev->outqueue)) || + (dev->state & DEV_DISCONNECTED)); + if (ret) { + up(&dev->fileop_lock); + return ret; + } + if (dev->state & DEV_DISCONNECTED) { + up(&dev->fileop_lock); + return -ENODEV; + } + } + + f = list_entry(dev->outqueue.prev, struct em2820_frame_t, frame); + + spin_lock_irqsave(&dev->queue_lock, lock_flags); + list_for_each_entry(i, &dev->outqueue, frame) + i->state = F_UNUSED; + INIT_LIST_HEAD(&dev->outqueue); + spin_unlock_irqrestore(&dev->queue_lock, lock_flags); + + em2820_queue_unusedframes(dev); + + if (count > f->buf.length) + count = f->buf.length; + + if (copy_to_user(buf, f->bufmem, count)) { + up(&dev->fileop_lock); + return -EFAULT; + } + *f_pos += count; + + up(&dev->fileop_lock); + + return count; +} + +/* + * em2820_v4l2_poll() + * will allocate buffers when called for the first time + */ +static unsigned int em2820_v4l2_poll(struct file *filp, poll_table * wait) +{ + struct em2820 *dev = video_get_drvdata(video_devdata(filp)); + unsigned int mask = 0; + + if (down_interruptible(&dev->fileop_lock)) + return POLLERR; + + if (dev->state & DEV_DISCONNECTED) { + em2820_videodbg("device not present"); + } else if (dev->state & DEV_MISCONFIGURED) { + em2820_videodbg("device is misconfigured; close and open it again"); + } else { + if (dev->io == IO_NONE) { + if (!em2820_request_buffers + (dev, EM2820_NUM_READ_FRAMES)) { + em2820_warn + ("poll() failed, not enough memory\n"); + } else { + dev->io = IO_READ; + dev->stream = STREAM_ON; + } + } + + if (dev->io == IO_READ) { + em2820_queue_unusedframes(dev); + poll_wait(filp, &dev->wait_frame, wait); + + if (!list_empty(&dev->outqueue)) + mask |= POLLIN | POLLRDNORM; + + up(&dev->fileop_lock); + + return mask; + } + } + + up(&dev->fileop_lock); + return POLLERR; +} + +/* + * em2820_vm_open() + */ +static void em2820_vm_open(struct vm_area_struct *vma) +{ + struct em2820_frame_t *f = vma->vm_private_data; + f->vma_use_count++; +} + +/* + * em2820_vm_close() + */ +static void em2820_vm_close(struct vm_area_struct *vma) +{ + /* NOTE: buffers are not freed here */ + struct em2820_frame_t *f = vma->vm_private_data; + f->vma_use_count--; +} + +static struct vm_operations_struct em2820_vm_ops = { + .open = em2820_vm_open, + .close = em2820_vm_close, +}; + +/* + * em2820_v4l2_mmap() + */ +static int em2820_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) +{ + struct em2820 *dev = video_get_drvdata(video_devdata(filp)); + unsigned long size = vma->vm_end - vma->vm_start, + start = vma->vm_start, pos, page; + u32 i; + if (down_interruptible(&dev->fileop_lock)) + return -ERESTARTSYS; + + if (dev->state & DEV_DISCONNECTED) { + em2820_videodbg("mmap: device not present"); + up(&dev->fileop_lock); + return -ENODEV; + } + + if (dev->state & DEV_MISCONFIGURED) { + em2820_videodbg ("mmap: Device is misconfigured; close and " + "open it again"); + up(&dev->fileop_lock); + return -EIO; + } + + if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || + size != PAGE_ALIGN(dev->frame[0].buf.length)) { + up(&dev->fileop_lock); + return -EINVAL; + } + + for (i = 0; i < dev->num_frames; i++) { + if ((dev->frame[i].buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff) + break; + } + if (i == dev->num_frames) { + em2820_videodbg("mmap: user supplied mapping address is out of range"); + up(&dev->fileop_lock); + return -EINVAL; + } + + /* VM_IO is eventually going to replace PageReserved altogether */ + vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ + + pos = (unsigned long)dev->frame[i].bufmem; + while (size > 0) { /* size is page-aligned */ + page = vmalloc_to_pfn((void *)pos); + if (remap_pfn_range(vma, start, page, PAGE_SIZE, + vma->vm_page_prot)) { + em2820_videodbg("mmap: rename page map failed"); + up(&dev->fileop_lock); + return -EAGAIN; + } + start += PAGE_SIZE; + pos += PAGE_SIZE; + size -= PAGE_SIZE; + } + + vma->vm_ops = &em2820_vm_ops; + vma->vm_private_data = &dev->frame[i]; + + em2820_vm_open(vma); + up(&dev->fileop_lock); + return 0; +} + +/* + * em2820_get_ctrl() + * return the current saturation, brightness or contrast, mute state + */ +static int em2820_get_ctrl(struct em2820 *dev, struct v4l2_control *ctrl) +{ + s32 tmp; + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + ctrl->value = dev->mute; + return 0; + case V4L2_CID_AUDIO_VOLUME: + ctrl->value = dev->volume; + return 0; + case V4L2_CID_BRIGHTNESS: + if ((tmp = em2820_brightness_get(dev)) < 0) + return -EIO; + ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ + return 0; + case V4L2_CID_CONTRAST: + if ((ctrl->value = em2820_contrast_get(dev)) < 0) + return -EIO; + return 0; + case V4L2_CID_SATURATION: + if ((ctrl->value = em2820_saturation_get(dev)) < 0) + return -EIO; + return 0; + case V4L2_CID_RED_BALANCE: + if ((tmp = em2820_v_balance_get(dev)) < 0) + return -EIO; + ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ + return 0; + case V4L2_CID_BLUE_BALANCE: + if ((tmp = em2820_u_balance_get(dev)) < 0) + return -EIO; + ctrl->value = (s32) ((s8) tmp); /* FIXME: clenaer way to extend sign? */ + return 0; + case V4L2_CID_GAMMA: + if ((ctrl->value = em2820_gamma_get(dev)) < 0) + return -EIO; + return 0; + default: + return -EINVAL; + } +} + +/* + * em2820_set_ctrl() + * mute or set new saturation, brightness or contrast + */ +static int em2820_set_ctrl(struct em2820 *dev, const struct v4l2_control *ctrl) +{ + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + if (ctrl->value != dev->mute) { + dev->mute = ctrl->value; + em2820_audio_usb_mute(dev, ctrl->value); + return em2820_audio_analog_set(dev); + } + return 0; + case V4L2_CID_AUDIO_VOLUME: + dev->volume = ctrl->value; + return em2820_audio_analog_set(dev); + case V4L2_CID_BRIGHTNESS: + return em2820_brightness_set(dev, ctrl->value); + case V4L2_CID_CONTRAST: + return em2820_contrast_set(dev, ctrl->value); + case V4L2_CID_SATURATION: + return em2820_saturation_set(dev, ctrl->value); + case V4L2_CID_RED_BALANCE: + return em2820_v_balance_set(dev, ctrl->value); + case V4L2_CID_BLUE_BALANCE: + return em2820_u_balance_set(dev, ctrl->value); + case V4L2_CID_GAMMA: + return em2820_gamma_set(dev, ctrl->value); + default: + return -EINVAL; + } +} + +/* + * em2820_stream_interrupt() + * stops streaming + */ +static int em2820_stream_interrupt(struct em2820 *dev) +{ + int ret = 0; + + /* stop reading from the device */ + + dev->stream = STREAM_INTERRUPT; + ret = wait_event_timeout(dev->wait_stream, + (dev->stream == STREAM_OFF) || + (dev->state & DEV_DISCONNECTED), + EM2820_URB_TIMEOUT); + if (dev->state & DEV_DISCONNECTED) + return -ENODEV; + else if (ret) { + dev->state |= DEV_MISCONFIGURED; + em2820_videodbg("device is misconfigured; close and " + "open /dev/video%d again", dev->vdev->minor); + return ret; + } + + return 0; +} + +static int em2820_set_norm(struct em2820 *dev, int width, int height) +{ + unsigned int hscale, vscale; + unsigned int maxh, maxw; + + maxw = norm_maxw(dev); + maxh = norm_maxh(dev); + + /* width must even because of the YUYV format */ + /* height must be even because of interlacing */ + height &= 0xfffe; + width &= 0xfffe; + + if (height < 32) + height = 32; + if (height > maxh) + height = maxh; + if (width < 48) + width = 48; + if (width > maxw) + width = maxw; + + if ((hscale = (((unsigned long)maxw) << 12) / width - 4096L) >= 0x4000) + hscale = 0x3fff; + width = (((unsigned long)maxw) << 12) / (hscale + 4096L); + + if ((vscale = (((unsigned long)maxh) << 12) / height - 4096L) >= 0x4000) + vscale = 0x3fff; + height = (((unsigned long)maxh) << 12) / (vscale + 4096L); + + /* set new image size */ + dev->width = width; + dev->height = height; + dev->frame_size = dev->width * dev->height * 2; + dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ + dev->bytesperline = dev->width * 2; + dev->hscale = hscale; + dev->vscale = vscale; + + em2820_resolution_set(dev); + + return 0; +} + +static void video_mux(struct em2820 *dev, int index) +{ + int input, ainput; + + input = INPUT(index)->vmux; + dev->ctl_input = index; + + em2820_i2c_call_clients(dev, DECODER_SET_INPUT, &input); + + dev->ctl_ainput = INPUT(index)->amux; + + switch (dev->ctl_ainput) { + case 0: + ainput = EM2820_AUDIO_SRC_TUNER; + break; + default: + ainput = EM2820_AUDIO_SRC_LINE; + } + + em2820_audio_source(dev, ainput); +} + +/* + * em2820_v4l2_do_ioctl() + * This function is _not_ called directly, but from + * em2820_v4l2_ioctl. Userspace + * copying is done already, arg is a kernel pointer. + */ +static int em2820_do_ioctl(struct inode *inode, struct file *filp, + struct em2820 *dev, unsigned int cmd, void *arg, + v4l2_kioctl driver_ioctl) +{ + int ret; + + switch (cmd) { + /* ---------- tv norms ---------- */ + case VIDIOC_ENUMSTD: + { + struct v4l2_standard *e = arg; + unsigned int i; + + i = e->index; + if (i >= TVNORMS) + return -EINVAL; + ret = v4l2_video_std_construct(e, tvnorms[e->index].id, + tvnorms[e->index].name); + e->index = i; + if (ret < 0) + return ret; + return 0; + } + case VIDIOC_G_STD: + { + v4l2_std_id *id = arg; + + *id = dev->tvnorm->id; + return 0; + } + case VIDIOC_S_STD: + { + v4l2_std_id *id = arg; + unsigned int i; + + for (i = 0; i < TVNORMS; i++) + if (*id == tvnorms[i].id) + break; + if (i == TVNORMS) + for (i = 0; i < TVNORMS; i++) + if (*id & tvnorms[i].id) + break; + if (i == TVNORMS) + return -EINVAL; + + down(&dev->lock); + dev->tvnorm = &tvnorms[i]; + + em2820_set_norm(dev, dev->width, dev->height); + +/* + dev->width=norm_maxw(dev); + dev->height=norm_maxh(dev); + dev->frame_size=dev->width*dev->height*2; + dev->field_size=dev->frame_size>>1; + dev->bytesperline=dev->width*2; + dev->hscale=0; + dev->vscale=0; + + em2820_resolution_set(dev); +*/ +/* + em2820_uninit_isoc(dev); + em2820_set_alternate(dev); + em2820_capture_start(dev, 1); + em2820_resolution_set(dev); + em2820_init_isoc(dev); +*/ + em2820_i2c_call_clients(dev, DECODER_SET_NORM, + &tvnorms[i].mode); + em2820_i2c_call_clients(dev, VIDIOC_S_STD, + &dev->tvnorm->id); + + up(&dev->lock); + + return 0; + } + + /* ------ input switching ---------- */ + case VIDIOC_ENUMINPUT: + { + struct v4l2_input *i = arg; + unsigned int n; + static const char *iname[] = { + [EM2820_VMUX_COMPOSITE1] = "Composite1", + [EM2820_VMUX_COMPOSITE2] = "Composite2", + [EM2820_VMUX_COMPOSITE3] = "Composite3", + [EM2820_VMUX_COMPOSITE4] = "Composite4", + [EM2820_VMUX_SVIDEO] = "S-Video", + [EM2820_VMUX_TELEVISION] = "Television", + [EM2820_VMUX_CABLE] = "Cable TV", + [EM2820_VMUX_DVB] = "DVB", + [EM2820_VMUX_DEBUG] = "for debug only", + }; + + n = i->index; + if (n >= MAX_EM2820_INPUT) + return -EINVAL; + if (0 == INPUT(n)->type) + return -EINVAL; + memset(i, 0, sizeof(*i)); + i->index = n; + i->type = V4L2_INPUT_TYPE_CAMERA; + strcpy(i->name, iname[INPUT(n)->type]); + if ((EM2820_VMUX_TELEVISION == INPUT(n)->type) || + (EM2820_VMUX_CABLE == INPUT(n)->type)) + i->type = V4L2_INPUT_TYPE_TUNER; + for (n = 0; n < ARRAY_SIZE(tvnorms); n++) + i->std |= tvnorms[n].id; + return 0; + } + + case VIDIOC_G_INPUT: + { + int *i = arg; + *i = dev->ctl_input; + + return 0; + } + + case VIDIOC_S_INPUT: + { + int *index = arg; + + if (*index >= MAX_EM2820_INPUT) + return -EINVAL; + if (0 == INPUT(*index)->type) + return -EINVAL; + + down(&dev->lock); + video_mux(dev, *index); + up(&dev->lock); + + return 0; + } + + case VIDIOC_G_AUDIO: + { + struct v4l2_audio *a = arg; + unsigned int index = a->index; + + if (a->index > 1) + return -EINVAL; + memset(a, 0, sizeof(*a)); + index = dev->ctl_ainput; + + if (index == 0) { + strcpy(a->name, "Television"); + } else { + strcpy(a->name, "Line In"); + } + a->capability = V4L2_AUDCAP_STEREO; + a->index = index; + return 0; + } + + case VIDIOC_S_AUDIO: + { + struct v4l2_audio *a = arg; + if (a->index != dev->ctl_ainput) + return -EINVAL; + + return 0; + } + + /* --- controls ---------------------------------------------- */ + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *qc = arg; + u8 i, n; + n = sizeof(em2820_qctrl) / sizeof(em2820_qctrl[0]); + for (i = 0; i < n; i++) + if (qc->id && qc->id == em2820_qctrl[i].id) { + memcpy(qc, &(em2820_qctrl[i]), + sizeof(*qc)); + return 0; + } + + return -EINVAL; + } + + case VIDIOC_G_CTRL: + { + struct v4l2_control *ctrl = arg; + + + return em2820_get_ctrl(dev, ctrl); + } + + case VIDIOC_S_CTRL_OLD: /* ??? */ + case VIDIOC_S_CTRL: + { + struct v4l2_control *ctrl = arg; + u8 i, n; + + + n = sizeof(em2820_qctrl) / sizeof(em2820_qctrl[0]); + for (i = 0; i < n; i++) + if (ctrl->id == em2820_qctrl[i].id) { + if (ctrl->value < + em2820_qctrl[i].minimum + || ctrl->value > + em2820_qctrl[i].maximum) + return -ERANGE; + + return em2820_set_ctrl(dev, ctrl); + } + return -EINVAL; + } + + /* --- tuner ioctls ------------------------------------------ */ + case VIDIOC_G_TUNER: + { + struct v4l2_tuner *t = arg; + int status = 0; + + if (0 != t->index) + return -EINVAL; + + memset(t, 0, sizeof(*t)); + strcpy(t->name, "Tuner"); + t->type = V4L2_TUNER_ANALOG_TV; + t->capability = V4L2_TUNER_CAP_NORM; + t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ +/* t->signal = 0xffff;*/ +/* em2820_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/ + /* No way to get signal strength? */ + down(&dev->lock); + em2820_i2c_call_clients(dev, DECODER_GET_STATUS, + &status); + up(&dev->lock); + t->signal = + (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; + + em2820_videodbg("VIDIO_G_TUNER: signal=%x, afc=%x", t->signal, + t->afc); + return 0; + } + case VIDIOC_S_TUNER: + { + struct v4l2_tuner *t = arg; + int status = 0; + + if (0 != t->index) + return -EINVAL; + memset(t, 0, sizeof(*t)); + strcpy(t->name, "Tuner"); + t->type = V4L2_TUNER_ANALOG_TV; + t->capability = V4L2_TUNER_CAP_NORM; + t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ +/* t->signal = 0xffff; */ + /* No way to get signal strength? */ + down(&dev->lock); + em2820_i2c_call_clients(dev, DECODER_GET_STATUS, + &status); + up(&dev->lock); + t->signal = + (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; + + em2820_videodbg("VIDIO_S_TUNER: signal=%x, afc=%x\n", + t->signal, t->afc); + return 0; + } + case VIDIOC_G_FREQUENCY: + { + struct v4l2_frequency *f = arg; + + memset(f, 0, sizeof(*f)); + f->type = V4L2_TUNER_ANALOG_TV; + f->frequency = dev->ctl_freq; + + return 0; + } + case VIDIOC_S_FREQUENCY: + { + struct v4l2_frequency *f = arg; + + if (0 != f->tuner) + return -EINVAL; + + if (V4L2_TUNER_ANALOG_TV != f->type) + return -EINVAL; + + down(&dev->lock); + dev->ctl_freq = f->frequency; + em2820_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); + up(&dev->lock); + return 0; + } + + case VIDIOC_CROPCAP: + { + struct v4l2_cropcap *cc = arg; + + if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return EINVAL; + cc->bounds.left = 0; + cc->bounds.top = 0; + cc->bounds.width = dev->width; + cc->bounds.height = dev->height; + cc->defrect = cc->bounds; + cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ + cc->pixelaspect.denominator = 59; + return 0; + } + case VIDIOC_STREAMON: + { + int *type = arg; + + if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE + || dev->io != IO_MMAP) + return -EINVAL; + + if (list_empty(&dev->inqueue)) + return -EINVAL; + + dev->stream = STREAM_ON; /* FIXME: Start video capture here? */ + + em2820_videodbg("VIDIOC_STREAMON: starting stream"); + + return 0; + } + case VIDIOC_STREAMOFF: + { + int *type = arg; + int ret; + + if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE + || dev->io != IO_MMAP) + return -EINVAL; + + if (dev->stream == STREAM_ON) { + em2820_videodbg ("VIDIOC_STREAMOFF: interrupting stream"); + if ((ret = em2820_stream_interrupt(dev))) + return ret; + } + em2820_empty_framequeues(dev); + + return 0; + } + default: + return v4l_compat_translate_ioctl(inode, filp, cmd, arg, + driver_ioctl); + } + return 0; +} + +/* + * em2820_v4l2_do_ioctl() + * This function is _not_ called directly, but from + * em2820_v4l2_ioctl. Userspace + * copying is done already, arg is a kernel pointer. + */ +static int em2820_video_do_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, void *arg) +{ + struct em2820 *dev = filp->private_data; + + if (!dev) + return -ENODEV; + + if (video_debug > 1) + em2820_print_ioctl(dev->name,cmd); + + switch (cmd) { + + /* --- capabilities ------------------------------------------ */ + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *cap = arg; + + memset(cap, 0, sizeof(*cap)); + strlcpy(cap->driver, "em2820", sizeof(cap->driver)); + strlcpy(cap->card, em2820_boards[dev->model].name, + sizeof(cap->card)); + strlcpy(cap->bus_info, dev->udev->dev.bus_id, + sizeof(cap->bus_info)); + cap->version = EM2820_VERSION_CODE; + cap->capabilities = + V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_AUDIO | + V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; + if (dev->has_tuner) + cap->capabilities |= V4L2_CAP_TUNER; + return 0; + } + + /* --- capture ioctls ---------------------------------------- */ + case VIDIOC_ENUM_FMT: + { + struct v4l2_fmtdesc *fmtd = arg; + + if (fmtd->index != 0) + return -EINVAL; + memset(fmtd, 0, sizeof(*fmtd)); + fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + strcpy(fmtd->description, "Packed YUY2"); + fmtd->pixelformat = V4L2_PIX_FMT_YUYV; + memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); + return 0; + } + + case VIDIOC_G_FMT: + { + struct v4l2_format *format = arg; + + em2820_videodbg("VIDIOC_G_FMT: type=%s", + format->type == + V4L2_BUF_TYPE_VIDEO_CAPTURE ? + "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type == + V4L2_BUF_TYPE_VBI_CAPTURE ? + "V4L2_BUF_TYPE_VBI_CAPTURE " : + "not supported"); + + if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + format->fmt.pix.width = dev->width; + format->fmt.pix.height = dev->height; + format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; + format->fmt.pix.bytesperline = dev->bytesperline; + format->fmt.pix.sizeimage = dev->frame_size; + format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + format->fmt.pix.field = dev->interlaced ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ + + em2820_videodbg("VIDIOC_G_FMT: %dx%d", dev->width, + dev->height); + return 0; + } + + case VIDIOC_TRY_FMT: + case VIDIOC_S_FMT: + { + struct v4l2_format *format = arg; + u32 i; + int ret = 0; + int width = format->fmt.pix.width; + int height = format->fmt.pix.height; + unsigned int hscale, vscale; + unsigned int maxh, maxw; + + maxw = norm_maxw(dev); + maxh = norm_maxh(dev); + +/* int both_fields; */ + + em2820_videodbg("%s: type=%s", + cmd == + VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : + "VIDIOC_S_FMT", + format->type == + V4L2_BUF_TYPE_VIDEO_CAPTURE ? + "V4L2_BUF_TYPE_VIDEO_CAPTURE" : format->type == + V4L2_BUF_TYPE_VBI_CAPTURE ? + "V4L2_BUF_TYPE_VBI_CAPTURE " : + "not supported"); + + if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + em2820_videodbg("%s: requested %dx%d", + cmd == + VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : + "VIDIOC_S_FMT", format->fmt.pix.width, + format->fmt.pix.height); + + /* FIXME: Move some code away from here */ + /* width must even because of the YUYV format */ + /* height must be even because of interlacing */ + height &= 0xfffe; + width &= 0xfffe; + + if (height < 32) + height = 32; + if (height > maxh) + height = maxh; + if (width < 48) + width = 48; + if (width > maxw) + width = maxw; + + if ((hscale = + (((unsigned long)maxw) << 12) / width - 4096L) >= + 0x4000) + hscale = 0x3fff; + width = + (((unsigned long)maxw) << 12) / (hscale + 4096L); + + if ((vscale = + (((unsigned long)maxh) << 12) / height - 4096L) >= + 0x4000) + vscale = 0x3fff; + height = + (((unsigned long)maxh) << 12) / (vscale + 4096L); + + format->fmt.pix.width = width; + format->fmt.pix.height = height; + format->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; + format->fmt.pix.bytesperline = width * 2; + format->fmt.pix.sizeimage = width * 2 * height; + format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + format->fmt.pix.field = V4L2_FIELD_INTERLACED; + + em2820_videodbg("%s: returned %dx%d (%d, %d)", + cmd == + VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : + "VIDIOC_S_FMT", format->fmt.pix.width, + format->fmt.pix.height, hscale, vscale); + + if (cmd == VIDIOC_TRY_FMT) + return 0; + + for (i = 0; i < dev->num_frames; i++) + if (dev->frame[i].vma_use_count) { + em2820_videodbg("VIDIOC_S_FMT failed. " + "Unmap the buffers first."); + return -EINVAL; + } + + /* stop io in case it is already in progress */ + if (dev->stream == STREAM_ON) { + em2820_videodbg("VIDIOC_SET_FMT: interupting stream"); + if ((ret = em2820_stream_interrupt(dev))) + return ret; + } + + em2820_release_buffers(dev); + dev->io = IO_NONE; + + /* set new image size */ + dev->width = width; + dev->height = height; + dev->frame_size = dev->width * dev->height * 2; + dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ + dev->bytesperline = dev->width * 2; + dev->hscale = hscale; + dev->vscale = vscale; +/* dev->both_fileds = both_fileds; */ + em2820_uninit_isoc(dev); + em2820_set_alternate(dev); + em2820_capture_start(dev, 1); + em2820_resolution_set(dev); + em2820_init_isoc(dev); + + return 0; + } + + /* --- streaming capture ------------------------------------- */ + case VIDIOC_REQBUFS: + { + struct v4l2_requestbuffers *rb = arg; + u32 i; + int ret; + + if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + rb->memory != V4L2_MEMORY_MMAP) + return -EINVAL; + + if (dev->io == IO_READ) { + em2820_videodbg ("method is set to read;" + " close and open the device again to" + " choose the mmap I/O method"); + return -EINVAL; + } + + for (i = 0; i < dev->num_frames; i++) + if (dev->frame[i].vma_use_count) { + em2820_videodbg ("VIDIOC_REQBUFS failed; previous buffers are still mapped"); + return -EINVAL; + } + + if (dev->stream == STREAM_ON) { + em2820_videodbg("VIDIOC_REQBUFS: interrupting stream"); + if ((ret = em2820_stream_interrupt(dev))) + return ret; + } + + em2820_empty_framequeues(dev); + + em2820_release_buffers(dev); + if (rb->count) + rb->count = + em2820_request_buffers(dev, rb->count); + + dev->frame_current = NULL; + + em2820_videodbg ("VIDIOC_REQBUFS: setting io method to mmap: num bufs %i", + rb->count); + dev->io = rb->count ? IO_MMAP : IO_NONE; + return 0; + } + + case VIDIOC_QUERYBUF: + { + struct v4l2_buffer *b = arg; + + if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + b->index >= dev->num_frames || dev->io != IO_MMAP) + return -EINVAL; + + memcpy(b, &dev->frame[b->index].buf, sizeof(*b)); + + if (dev->frame[b->index].vma_use_count) { + b->flags |= V4L2_BUF_FLAG_MAPPED; + } + if (dev->frame[b->index].state == F_DONE) + b->flags |= V4L2_BUF_FLAG_DONE; + else if (dev->frame[b->index].state != F_UNUSED) + b->flags |= V4L2_BUF_FLAG_QUEUED; + return 0; + } + case VIDIOC_QBUF: + { + struct v4l2_buffer *b = arg; + unsigned long lock_flags; + + if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + b->index >= dev->num_frames || dev->io != IO_MMAP) { + return -EINVAL; + } + + if (dev->frame[b->index].state != F_UNUSED) { + return -EAGAIN; + } + dev->frame[b->index].state = F_QUEUED; + + /* add frame to fifo */ + spin_lock_irqsave(&dev->queue_lock, lock_flags); + list_add_tail(&dev->frame[b->index].frame, + &dev->inqueue); + spin_unlock_irqrestore(&dev->queue_lock, lock_flags); + + return 0; + } + case VIDIOC_DQBUF: + { + struct v4l2_buffer *b = arg; + struct em2820_frame_t *f; + unsigned long lock_flags; + int ret = 0; + + if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE + || dev->io != IO_MMAP) + return -EINVAL; + + if (list_empty(&dev->outqueue)) { + if (dev->stream == STREAM_OFF) + return -EINVAL; + if (filp->f_flags & O_NONBLOCK) + return -EAGAIN; + ret = wait_event_interruptible + (dev->wait_frame, + (!list_empty(&dev->outqueue)) || + (dev->state & DEV_DISCONNECTED)); + if (ret) + return ret; + if (dev->state & DEV_DISCONNECTED) + return -ENODEV; + } + + spin_lock_irqsave(&dev->queue_lock, lock_flags); + f = list_entry(dev->outqueue.next, + struct em2820_frame_t, frame); + list_del(dev->outqueue.next); + spin_unlock_irqrestore(&dev->queue_lock, lock_flags); + + f->state = F_UNUSED; + memcpy(b, &f->buf, sizeof(*b)); + + if (f->vma_use_count) + b->flags |= V4L2_BUF_FLAG_MAPPED; + + return 0; + } + default: + return em2820_do_ioctl(inode, filp, dev, cmd, arg, + em2820_video_do_ioctl); + } + return 0; +} + +/* + * em2820_v4l2_ioctl() + * handle v4l2 ioctl the main action happens in em2820_v4l2_do_ioctl() + */ +static int em2820_v4l2_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) +{ + struct em2820 *dev = video_get_drvdata(video_devdata(filp)); + int ret = 0; + + if (down_interruptible(&dev->fileop_lock)) + return -ERESTARTSYS; + + if (dev->state & DEV_DISCONNECTED) { + em2820_errdev("v4l2 ioctl: device not present\n"); + up(&dev->fileop_lock); + return -ENODEV; + } + + if (dev->state & DEV_MISCONFIGURED) { + em2820_errdev + ("v4l2 ioctl: device is misconfigured; close and open it again\n"); + up(&dev->fileop_lock); + return -EIO; + } + + ret = video_usercopy(inode, filp, cmd, arg, em2820_video_do_ioctl); + + up(&dev->fileop_lock); + + return ret; +} + +static struct file_operations em2820_v4l_fops = { + .owner = THIS_MODULE, + .open = em2820_v4l2_open, + .release = em2820_v4l2_close, + .ioctl = em2820_v4l2_ioctl, + .read = em2820_v4l2_read, + .poll = em2820_v4l2_poll, + .mmap = em2820_v4l2_mmap, + .llseek = no_llseek, +}; + +/******************************** usb interface *****************************************/ + +/* + * em2820_init_dev() + * allocates and inits the device structs, registers i2c bus and v4l device + */ +static int em2820_init_dev(struct em2820 **devhandle, struct usb_device *udev, + int minor, int model) +{ + struct em2820 *dev; + int retval = -ENOMEM; + int errCode, i; + unsigned int maxh, maxw; + struct usb_interface *uif; + + /* allocate memory for our device state and initialize it */ + dev = kmalloc(sizeof(*dev), GFP_KERNEL); + if (dev == NULL) { + em2820_err(DRIVER_NAME ": out of memory!\n"); + return -ENOMEM; + } + memset(dev, 0x00, sizeof(*dev)); + + snprintf(dev->name, 29, "em2820 #%d", minor); + dev->udev = udev; + dev->model = model; + init_MUTEX(&dev->lock); + init_waitqueue_head(&dev->open); + + dev->em2820_write_regs = em2820_write_regs; + dev->em2820_read_reg = em2820_read_reg; + dev->em2820_read_reg_req_len = em2820_read_reg_req_len; + dev->em2820_write_regs_req = em2820_write_regs_req; + dev->em2820_read_reg_req = em2820_read_reg_req; + dev->has_tuner = em2820_boards[model].has_tuner; + dev->has_msp34xx = em2820_boards[model].has_msp34xx; + dev->tda9887_conf = em2820_boards[model].tda9887_conf; + dev->decoder = em2820_boards[model].decoder; + + if (tuner >= 0) + dev->tuner_type = tuner; + else + dev->tuner_type = em2820_boards[model].tuner_type; + + dev->video_inputs = em2820_boards[model].vchannels; + + for (i = 0; i < TVNORMS; i++) + if (em2820_boards[model].norm == tvnorms[i].mode) + break; + if (i == TVNORMS) + i = 0; + + dev->tvnorm = &tvnorms[i]; /* set default norm */ + + em2820_videodbg("tvnorm=%s\n", dev->tvnorm->name); + + maxw = norm_maxw(dev); + maxh = norm_maxh(dev); + + /* set default image size */ + dev->width = maxw; + dev->height = maxh; + dev->interlaced = EM2820_INTERLACED_DEFAULT; + dev->field_size = dev->width * dev->height; + dev->frame_size = + dev->interlaced ? dev->field_size << 1 : dev->field_size; + dev->bytesperline = dev->width * 2; + dev->hscale = 0; + dev->vscale = 0; + dev->ctl_input = 2; + + /* setup video picture settings for saa7113h */ + memset(&dev->vpic, 0, sizeof(dev->vpic)); + dev->vpic.colour = 128 << 8; + dev->vpic.hue = 128 << 8; + dev->vpic.brightness = 128 << 8; + dev->vpic.contrast = 192 << 8; + dev->vpic.whiteness = 128 << 8; /* This one isn't used */ + dev->vpic.depth = 16; + dev->vpic.palette = VIDEO_PALETTE_YUV422; + + /* compute alternate max packet sizes */ + uif = dev->udev->actconfig->interface[0]; + dev->alt_max_pkt_size[0] = 0; + for (i = 1; i <= EM2820_MAX_ALT; i++) { + u16 tmp = + le16_to_cpu(uif->altsetting[i].endpoint[1].desc. + wMaxPacketSize); + dev->alt_max_pkt_size[i] = + (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); + } + +#ifdef CONFIG_MODULES + /* request some modules */ + if (dev->decoder == EM2820_SAA7113) + request_module("saa7113"); + if (dev->decoder == EM2820_SAA7114) + request_module("saa7114"); + if (dev->decoder == EM2820_TVP5150) + request_module("tvp5150"); + if (dev->has_tuner) + request_module("tuner"); + if (dev->tda9887_conf) + request_module("tda9887"); +#endif + errCode = em2820_config(dev); + if (errCode) { + em2820_errdev("error configuring device\n"); + kfree(dev); + return -ENOMEM; + } + + down(&dev->lock); + /* register i2c bus */ + em2820_i2c_register(dev); + + /* Do board specific init and eeprom reading */ + em2820_card_setup(dev); + + /* configure the device */ + em2820_config_i2c(dev); + + up(&dev->lock); + + errCode = em2820_config(dev); + +#ifdef CONFIG_MODULES + if (dev->has_msp34xx) + request_module("msp3400"); +#endif + /* allocate and fill v4l2 device struct */ + dev->vdev = video_device_alloc(); + if (NULL == dev->vdev) { + em2820_errdev("cannot allocate video_device.\n"); + kfree(dev); + return -ENOMEM; + } + + dev->vdev->owner = THIS_MODULE; + dev->vdev->type = VID_TYPE_CAPTURE; + if (dev->has_tuner) + dev->vdev->type |= VID_TYPE_TUNER; + dev->vdev->hardware = 0; + dev->vdev->fops = &em2820_v4l_fops; + dev->vdev->minor = -1; + dev->vdev->dev = &dev->udev->dev; + dev->vdev->release = video_device_release; + snprintf(dev->vdev->name, sizeof(dev->vdev->name), "%s", + "em2820 video"); + video_set_drvdata(dev->vdev, dev); + + /* register v4l2 device */ + down(&dev->lock); + if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1))) { + em2820_errdev("unable to register video device (error=%i).\n", + retval); + up(&dev->lock); + video_set_drvdata(dev->vdev, NULL); + video_device_release(dev->vdev); + kfree(dev); + return -ENODEV; + } + if (dev->has_msp34xx) { + /* Send a reset to other chips via gpio */ + em2820_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); + udelay(2500); + em2820_write_regs_req(dev, 0x00, 0x08, "\xff", 1); + udelay(2500); + + } + video_mux(dev, 0); + + up(&dev->lock); + + em2820_info("V4L2 device registered as /dev/video%d\n", + dev->vdev->minor); + + *devhandle = dev; + return 0; +} + +/* + * em2820_usb_probe() + * checks for supported devices + */ +static int em2820_usb_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + const struct usb_endpoint_descriptor *endpoint; + struct usb_device *udev; + struct em2820 *dev = NULL; + int retval = -ENODEV; + + udev = usb_get_dev(interface_to_usbdev(interface)); + endpoint = &interface->cur_altsetting->endpoint[1].desc; + + /* check if the the device has the iso in endpoint at the correct place */ + if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != + USB_ENDPOINT_XFER_ISOC) { +/* em2820_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n"); */ + return -ENODEV; + } + if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { +/* em2820_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n"); */ + return -ENODEV; + } + + /* allocate device struct */ + retval = em2820_init_dev(&dev, udev, interface->minor, id->driver_info); + if (retval) + return retval; + + em2820_info("Found %s\n", em2820_boards[id->driver_info].name); + + /* save our data pointer in this interface device */ + usb_set_intfdata(interface, dev); + return 0; +} + +/* + * em2820_usb_disconnect() + * called when the device gets diconencted + * video device will be unregistered on v4l2_close in case it is still open + */ +static void em2820_usb_disconnect(struct usb_interface *interface) +{ + struct em2820 *dev = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + + if (!dev) + return; + + down_write(&em2820_disconnect); + + down(&dev->lock); + + em2820_info("disconnecting %s\n", dev->vdev->name); + + wake_up_interruptible_all(&dev->open); + + if (dev->users) { + em2820_warn + ("device /dev/video%d is open! Deregistration and memory " + "deallocation are deferred on close.\n", dev->vdev->minor); + dev->state |= DEV_MISCONFIGURED; + em2820_uninit_isoc(dev); + dev->state |= DEV_DISCONNECTED; + wake_up_interruptible(&dev->wait_frame); + wake_up_interruptible(&dev->wait_stream); + } else { + dev->state |= DEV_DISCONNECTED; + em2820_release_resources(dev); + } + + up(&dev->lock); + + if (!dev->users) + kfree(dev); + + up_write(&em2820_disconnect); + +} + +static struct usb_driver em2820_usb_driver = { + .owner = THIS_MODULE, + .name = "em2820", + .probe = em2820_usb_probe, + .disconnect = em2820_usb_disconnect, + .id_table = em2820_id_table, +}; + +static int __init em2820_module_init(void) +{ + int result; + + printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n", + (EM2820_VERSION_CODE >> 16) & 0xff, + (EM2820_VERSION_CODE >> 8) & 0xff, EM2820_VERSION_CODE & 0xff); +#ifdef SNAPSHOT + printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n", + SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100); +#endif + + /* register this driver with the USB subsystem */ + result = usb_register(&em2820_usb_driver); + if (result) + em2820_err(DRIVER_NAME + " usb_register failed. Error number %d.\n", result); + + return result; +} + +static void __exit em2820_module_exit(void) +{ + /* deregister this driver with the USB subsystem */ + usb_deregister(&em2820_usb_driver); +} + +module_init(em2820_module_init); +module_exit(em2820_module_exit); diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h new file mode 100644 index 00000000000..7779121a3de --- /dev/null +++ b/drivers/media/video/em28xx/em28xx.h @@ -0,0 +1,479 @@ +/* + em2820-cards.c - driver for Empia EM2820/2840 USB video capture devices + + Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> + Ludovico Cavedon <cavedon@sssup.it> + Mauro Carvalho Chehab <mchehab@brturbo.com.br> + + Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> + + 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. + */ + +#ifndef _EM2820_H +#define _EM2820_H + +#include <linux/videodev.h> +#include <linux/i2c.h> + +/* maximum number of frames that can be queued */ +#define EM2820_NUM_FRAMES 5 +/* number of frames that get used for v4l2_read() */ +#define EM2820_NUM_READ_FRAMES 2 + +/* number of buffers for isoc transfers */ +#define EM2820_NUM_BUFS 5 + +/* number of packets for each buffer */ +// windows requests only 40 packets .. so we better do the same +// this is what I found out for all alternate numbers there! + +#define EM2820_NUM_PACKETS 40 + +/* packet size for each packet */ +/* no longer needed: read from endpoint descriptor */ +//#define EM2820_MAX_PACKET_SIZE 3072 //7 +//#define EM2820_MAX_PACKET_SIZE 2892 //6 +//#define EM2820_MAX_PACKET_SIZE 2580 //5 +//#define EM2820_MAX_PACKET_SIZE 1448 //2 + +/* default alternate; 0 means choose the best */ +#define EM2820_PINOUT 0 +#define EM2820_MAX_ALT 7 + +#define EM2820_INTERLACED_DEFAULT 1 + +/* +#define (use usbview if you want to get the other alternate number infos) +#define +#define alternate number 2 +#define Endpoint Address: 82 + Direction: in + Attribute: 1 + Type: Isoc + Max Packet Size: 1448 + Interval: 125us + + alternate number 7 + + Endpoint Address: 82 + Direction: in + Attribute: 1 + Type: Isoc + Max Packet Size: 3072 + Interval: 125us +*/ + +/* time to wait when stopping the isoc transfer */ +#define EM2820_URB_TIMEOUT msecs_to_jiffies(EM2820_NUM_BUFS * EM2820_NUM_PACKETS) + +/* the various frame states */ +enum em2820_frame_state { + F_UNUSED = 0, + F_QUEUED, + F_GRABBING, + F_DONE, + F_ERROR, +}; + +/* stream states */ +enum em2820_stream_state { + STREAM_OFF, + STREAM_INTERRUPT, + STREAM_ON, +}; + +/* frames */ +struct em2820_frame_t { + void *bufmem; + struct v4l2_buffer buf; + enum em2820_frame_state state; + struct list_head frame; + unsigned long vma_use_count; + int top_field; + int fieldbytesused; +}; + +/* io methods */ +enum em2820_io_method { + IO_NONE, + IO_READ, + IO_MMAP, +}; + +/* inputs */ + +#define MAX_EM2820_INPUT 4 +enum enum2820_itype { + EM2820_VMUX_COMPOSITE1 = 1, + EM2820_VMUX_COMPOSITE2, + EM2820_VMUX_COMPOSITE3, + EM2820_VMUX_COMPOSITE4, + EM2820_VMUX_SVIDEO, + EM2820_VMUX_TELEVISION, + EM2820_VMUX_CABLE, + EM2820_VMUX_DVB, + EM2820_VMUX_DEBUG, + EM2820_RADIO, +}; + +struct em2820_input { + enum enum2820_itype type; + unsigned int vmux; + unsigned int amux; +}; + +#define INPUT(nr) (&em2820_boards[dev->model].input[nr]) + +enum em2820_decoder { + EM2820_TVP5150, + EM2820_SAA7113, + EM2820_SAA7114 +}; + +struct em2820_board { + char *name; + + int vchannels; + int norm; + int tuner_type; + + /* i2c flags */ + unsigned int tda9887_conf; + + unsigned int has_tuner:1; + unsigned int has_msp34xx:1; + + enum em2820_decoder decoder; + + struct em2820_input input[MAX_EM2820_INPUT]; +}; + +struct em2820_eeprom { + u32 id; /* 0x9567eb1a */ + u16 vendor_ID; + u16 product_ID; + + u16 chip_conf; + + u16 board_conf; + + u16 string1, string2, string3; + + u8 string_idx_table; +}; + +/* device states */ +enum em2820_dev_state { + DEV_INITIALIZED = 0x01, + DEV_DISCONNECTED = 0x02, + DEV_MISCONFIGURED = 0x04, +}; + +/* tvnorms */ +struct em2820_tvnorm { + char *name; + v4l2_std_id id; + /* mode for saa7113h */ + int mode; +}; + +/* main device struct */ +struct em2820 { + /* generic device properties */ + char name[30]; /* name (including minor) of the device */ + int model; /* index in the device_data struct */ + int video_inputs; /* number of video inputs */ + unsigned int has_tuner:1; + unsigned int has_msp34xx:1; + unsigned int has_tda9887:1; + + enum em2820_decoder decoder; + + int tuner_type; /* type of the tuner */ + int tuner_addr; /* tuner address */ + int tda9887_conf; + /* i2c i/o */ + struct i2c_adapter i2c_adap; + struct i2c_client i2c_client; + /* video for linux */ + int users; /* user count for exclusive use */ + struct video_device *vdev; /* video for linux device struct */ + struct video_picture vpic; /* picture settings only used to init saa7113h */ + struct em2820_tvnorm *tvnorm; /* selected tv norm */ + int ctl_freq; /* selected frequency */ + unsigned int ctl_input; /* selected input */ + unsigned int ctl_ainput; /* slected audio input */ + int mute; + int volume; + /* frame properties */ + struct em2820_frame_t frame[EM2820_NUM_FRAMES]; /* list of frames */ + int num_frames; /* number of frames currently in use */ + unsigned int frame_count; /* total number of transfered frames */ + struct em2820_frame_t *frame_current; /* the frame that is being filled */ + int width; /* current frame width */ + int height; /* current frame height */ + int frame_size; /* current frame size */ + int field_size; /* current field size */ + int bytesperline; + int hscale; /* horizontal scale factor (see datasheet) */ + int vscale; /* vertical scale factor (see datasheet) */ + int interlaced; /* 1=interlace fileds, 0=just top fileds */ + int type; + + /* states */ + enum em2820_dev_state state; + enum em2820_stream_state stream; + enum em2820_io_method io; + /* locks */ + struct semaphore lock, fileop_lock; + spinlock_t queue_lock; + struct list_head inqueue, outqueue; + wait_queue_head_t open, wait_frame, wait_stream; + struct video_device *vbi_dev; + + unsigned char eedata[256]; + + /* usb transfer */ + struct usb_device *udev; /* the usb device */ + int alt; /* alternate */ + int max_pkt_size; /* max packet size of isoc transaction */ + unsigned int alt_max_pkt_size[EM2820_MAX_ALT + 1]; /* array of wMaxPacketSize */ + struct urb *urb[EM2820_NUM_BUFS]; /* urb for isoc transfers */ + char *transfer_buffer[EM2820_NUM_BUFS]; /* transfer buffers for isoc transfer */ + /* helper funcs that call usb_control_msg */ + int (*em2820_write_regs) (struct em2820 * dev, u16 reg, char *buf, + int len); + int (*em2820_read_reg) (struct em2820 * dev, u16 reg); + int (*em2820_read_reg_req_len) (struct em2820 * dev, u8 req, u16 reg, + char *buf, int len); + int (*em2820_write_regs_req) (struct em2820 * dev, u8 req, u16 reg, + char *buf, int len); + int (*em2820_read_reg_req) (struct em2820 * dev, u8 req, u16 reg); +}; + +/* Provided by em2820-i2c.c */ + +void em2820_i2c_call_clients(struct em2820 *dev, unsigned int cmd, void *arg); +int em2820_i2c_register(struct em2820 *dev); +int em2820_i2c_unregister(struct em2820 *dev); + +/* Provided by em2820-core.c */ + +void em2820_print_ioctl(char *name, unsigned int cmd); + +u32 em2820_request_buffers(struct em2820 *dev, u32 count); +void em2820_queue_unusedframes(struct em2820 *dev); +void em2820_release_buffers(struct em2820 *dev); + +int em2820_read_reg_req_len(struct em2820 *dev, u8 req, u16 reg, + char *buf, int len); +int em2820_read_reg_req(struct em2820 *dev, u8 req, u16 reg); +int em2820_read_reg(struct em2820 *dev, u16 reg); +int em2820_write_regs_req(struct em2820 *dev, u8 req, u16 reg, char *buf, + int len); +int em2820_write_regs(struct em2820 *dev, u16 reg, char *buf, int len); +int em2820_write_reg_bits(struct em2820 *dev, u16 reg, u8 val, + u8 bitmask); +int em2820_write_ac97(struct em2820 *dev, u8 reg, u8 * val); +int em2820_audio_analog_set(struct em2820 *dev); +int em2820_colorlevels_set_default(struct em2820 *dev); +int em2820_capture_start(struct em2820 *dev, int start); +int em2820_outfmt_set_yuv422(struct em2820 *dev); +int em2820_accumulator_set(struct em2820 *dev, u8 xmin, u8 xmax, u8 ymin, + u8 ymax); +int em2820_capture_area_set(struct em2820 *dev, u8 hstart, u8 vstart, + u16 width, u16 height); +int em2820_scaler_set(struct em2820 *dev, u16 h, u16 v); +int em2820_resolution_set(struct em2820 *dev); +void em2820_isocIrq(struct urb *urb, struct pt_regs *regs); +int em2820_init_isoc(struct em2820 *dev); +void em2820_uninit_isoc(struct em2820 *dev); +int em2820_set_alternate(struct em2820 *dev); + +/* Provided by em2820-cards.c */ +extern void em2820_card_setup(struct em2820 *dev); +extern struct em2820_board em2820_boards[]; +extern struct usb_device_id em2820_id_table[]; + +/* em2820 registers */ +#define USBSUSP_REG 0x0c /* */ + +#define AUDIOSRC_REG 0x0e +#define XCLK_REG 0x0f + +#define VINMODE_REG 0x10 +#define VINCTRL_REG 0x11 +#define VINENABLE_REG 0x12 /* */ + +#define GAMMA_REG 0x14 +#define RGAIN_REG 0x15 +#define GGAIN_REG 0x16 +#define BGAIN_REG 0x17 +#define ROFFSET_REG 0x18 +#define GOFFSET_REG 0x19 +#define BOFFSET_REG 0x1a + +#define OFLOW_REG 0x1b +#define HSTART_REG 0x1c +#define VSTART_REG 0x1d +#define CWIDTH_REG 0x1e +#define CHEIGHT_REG 0x1f + +#define YGAIN_REG 0x20 +#define YOFFSET_REG 0x21 +#define UVGAIN_REG 0x22 +#define UOFFSET_REG 0x23 +#define VOFFSET_REG 0x24 +#define SHARPNESS_REG 0x25 + +#define COMPR_REG 0x26 +#define OUTFMT_REG 0x27 + +#define XMIN_REG 0x28 +#define XMAX_REG 0x29 +#define YMIN_REG 0x2a +#define YMAX_REG 0x2b + +#define HSCALELOW_REG 0x30 +#define HSCALEHIGH_REG 0x31 +#define VSCALELOW_REG 0x32 +#define VSCALEHIGH_REG 0x33 + +#define AC97LSB_REG 0x40 +#define AC97MSB_REG 0x41 +#define AC97ADDR_REG 0x42 +#define AC97BUSY_REG 0x43 + +/* em202 registers */ +#define MASTER_AC97 0x02 +#define VIDEO_AC97 0x14 + +/* register settings */ +#define EM2820_AUDIO_SRC_TUNER 0xc0 +#define EM2820_AUDIO_SRC_LINE 0x80 + +/* printk macros */ + +#define em2820_err(fmt, arg...) do {\ + printk(KERN_ERR fmt , ##arg); } while (0) + +#define em2820_errdev(fmt, arg...) do {\ + printk(KERN_ERR "%s: "fmt,\ + dev->name , ##arg); } while (0) + +#define em2820_info(fmt, arg...) do {\ + printk(KERN_INFO "%s: "fmt,\ + dev->name , ##arg); } while (0) +#define em2820_warn(fmt, arg...) do {\ + printk(KERN_WARNING "%s: "fmt,\ + dev->name , ##arg); } while (0) + +inline static int em2820_audio_source(struct em2820 *dev, int input) +{ + return em2820_write_reg_bits(dev, AUDIOSRC_REG, input, 0xc0); +} + +inline static int em2820_audio_usb_mute(struct em2820 *dev, int mute) +{ + return em2820_write_reg_bits(dev, XCLK_REG, mute ? 0x00 : 0x80, 0x80); +} + +inline static int em2820_audio_analog_setup(struct em2820 *dev) +{ + /* unmute video mixer with default volume level */ + return em2820_write_ac97(dev, VIDEO_AC97, "\x08\x08"); +} + +inline static int em2820_compression_disable(struct em2820 *dev) +{ + /* side effect of disabling scaler and mixer */ + return em2820_write_regs(dev, COMPR_REG, "\x00", 1); +} + +inline static int em2820_contrast_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, YGAIN_REG) & 0x1f; +} + +inline static int em2820_brightness_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, YOFFSET_REG); +} + +inline static int em2820_saturation_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, UVGAIN_REG) & 0x1f; +} + +inline static int em2820_u_balance_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, UOFFSET_REG); +} + +inline static int em2820_v_balance_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, VOFFSET_REG); +} + +inline static int em2820_gamma_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, GAMMA_REG) & 0x3f; +} + +inline static int em2820_contrast_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, YGAIN_REG, &tmp, 1); +} + +inline static int em2820_brightness_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, YOFFSET_REG, &tmp, 1); +} + +inline static int em2820_saturation_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, UVGAIN_REG, &tmp, 1); +} + +inline static int em2820_u_balance_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, UOFFSET_REG, &tmp, 1); +} + +inline static int em2820_v_balance_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, VOFFSET_REG, &tmp, 1); +} + +inline static int em2820_gamma_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, GAMMA_REG, &tmp, 1); +} + +/*FIXME: maxw should be dependent of alt mode */ +#define norm_maxw(dev) 720 +inline static unsigned int norm_maxh(struct em2820 *dev) +{ + return (dev->tvnorm->id & V4L2_STD_625_50) ? 576 : 480; +} + +#endif diff --git a/drivers/media/video/tvp5150.c b/drivers/media/video/tvp5150.c index 6e3ba23104d..03f360b45fd 100644 --- a/drivers/media/video/tvp5150.c +++ b/drivers/media/video/tvp5150.c @@ -35,6 +35,47 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)"); printk(format , ##args); \ } while (0) +/* supported controls */ +static struct v4l2_queryctrl tvp5150_qctrl[] = { + { + .id = V4L2_CID_BRIGHTNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Brightness", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 0, + .flags = 0, + }, { + .id = V4L2_CID_CONTRAST, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Contrast", + .minimum = 0, + .maximum = 255, + .step = 0x1, + .default_value = 0x10, + .flags = 0, + }, { + .id = V4L2_CID_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Saturation", + .minimum = 0, + .maximum = 255, + .step = 0x1, + .default_value = 0x10, + .flags = 0, + }, { + .id = V4L2_CID_HUE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Hue", + .minimum = -128, + .maximum = 127, + .step = 0x1, + .default_value = 0x10, + .flags = 0, + } +}; + struct tvp5150 { struct i2c_client *client; @@ -73,7 +114,7 @@ static inline void tvp5150_write(struct i2c_client *c, unsigned char addr, buffer[0] = addr; buffer[1] = value; - dprintk(1,"tvp5150: writing 0x%02x 0x%02x\n",buffer[0],buffer[1]); + dprintk(1, "tvp5150: writing 0x%02x 0x%02x\n", buffer[0], buffer[1]); if (2 != (rc = i2c_master_send(c, buffer, 2))) dprintk(0, "i2c i/o error: rc == %d (should be 2)\n", rc); } @@ -398,28 +439,11 @@ static inline void tvp5150_selmux(struct i2c_client *c, enum tvp5150_input input) { struct tvp5150 *decoder = i2c_get_clientdata(c); - int tvp_input; - - /* FIXME: It is dependent of basic driver */ - switch (input) - { - case 2: - tvp_input=TVP5150_ANALOG_CH0; - break; - case 0: - tvp_input=TVP5150_ANALOG_CH1; - break; - case 1: - tvp_input=TVP5150_SVIDEO; - break; - default: - tvp_input=TVP5150_BLACK_SCREEN; - } if (!decoder->enable) - tvp_input|=TVP5150_BLACK_SCREEN; + input |= TVP5150_BLACK_SCREEN; - tvp5150_write(c, TVP5150_VD_IN_SRC_SEL_1, tvp_input); + tvp5150_write(c, TVP5150_VD_IN_SRC_SEL_1, input); }; static inline void tvp5150_reset(struct i2c_client *c) @@ -432,7 +456,7 @@ static inline void tvp5150_reset(struct i2c_client *c) tvp5150_write(c, TVP5150_ANAL_CHL_CTL, 0x15); /* Normal Operation */ -// tvp5150_write(c, TVP5150_OP_MODE_CTL, 0x00); +// tvp5150_write(c, TVP5150_OP_MODE_CTL, 0x00); /* Activate YCrCb output 0x9 or 0xd ? */ tvp5150_write(c, TVP5150_MISC_CTL, 0x6f); @@ -458,6 +482,50 @@ static inline void tvp5150_reset(struct i2c_client *c) tvp5150_write(c, TVP5150_HUE_CTL, (decoder->hue - 32768) >> 8); }; +static int tvp5150_get_ctrl(struct i2c_client *c, struct v4l2_control *ctrl) +{ +/* struct tvp5150 *decoder = i2c_get_clientdata(c); */ + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + ctrl->value = tvp5150_read(c, TVP5150_BRIGHT_CTL); + return 0; + case V4L2_CID_CONTRAST: + ctrl->value = tvp5150_read(c, TVP5150_CONTRAST_CTL); + return 0; + case V4L2_CID_SATURATION: + ctrl->value = tvp5150_read(c, TVP5150_SATURATION_CTL); + return 0; + case V4L2_CID_HUE: + ctrl->value = tvp5150_read(c, TVP5150_HUE_CTL); + return 0; + default: + return -EINVAL; + } +} + +static int tvp5150_set_ctrl(struct i2c_client *c, struct v4l2_control *ctrl) +{ +/* struct tvp5150 *decoder = i2c_get_clientdata(c); */ + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + tvp5150_write(c, TVP5150_BRIGHT_CTL, ctrl->value); + return 0; + case V4L2_CID_CONTRAST: + tvp5150_write(c, TVP5150_CONTRAST_CTL, ctrl->value); + return 0; + case V4L2_CID_SATURATION: + tvp5150_write(c, TVP5150_SATURATION_CTL, ctrl->value); + return 0; + case V4L2_CID_HUE: + tvp5150_write(c, TVP5150_HUE_CTL, ctrl->value); + return 0; + default: + return -EINVAL; + } +} + /**************************************************************************** I2C Command ****************************************************************************/ @@ -478,21 +546,21 @@ static int tvp5150_command(struct i2c_client *client, break; case DECODER_GET_CAPABILITIES: - { - struct video_decoder_capability *cap = arg; - - cap->flags = VIDEO_DECODER_PAL | - VIDEO_DECODER_NTSC | - VIDEO_DECODER_SECAM | - VIDEO_DECODER_AUTO | VIDEO_DECODER_CCIR; - cap->inputs = 3; - cap->outputs = 1; - break; - } + { + struct video_decoder_capability *cap = arg; + + cap->flags = VIDEO_DECODER_PAL | + VIDEO_DECODER_NTSC | + VIDEO_DECODER_SECAM | + VIDEO_DECODER_AUTO | VIDEO_DECODER_CCIR; + cap->inputs = 3; + cap->outputs = 1; + break; + } case DECODER_GET_STATUS: - { - break; - } + { + break; + } case DECODER_SET_GPIO: break; @@ -501,87 +569,138 @@ static int tvp5150_command(struct i2c_client *client, break; case DECODER_SET_NORM: - { - int *iarg = arg; + { + int *iarg = arg; - switch (*iarg) { + switch (*iarg) { - case VIDEO_MODE_NTSC: - break; + case VIDEO_MODE_NTSC: + break; - case VIDEO_MODE_PAL: - break; + case VIDEO_MODE_PAL: + break; - case VIDEO_MODE_SECAM: - break; + case VIDEO_MODE_SECAM: + break; - case VIDEO_MODE_AUTO: - break; + case VIDEO_MODE_AUTO: + break; - default: - return -EINVAL; + default: + return -EINVAL; + } + decoder->norm = *iarg; + break; } - decoder->norm = *iarg; - break; - } case DECODER_SET_INPUT: - { - int *iarg = arg; - if (*iarg < 0 || *iarg > 3) { - return -EINVAL; - } + { + int *iarg = arg; + if (*iarg < 0 || *iarg > 3) { + return -EINVAL; + } - decoder->input=*iarg; - tvp5150_selmux(client, decoder->input); + decoder->input = *iarg; + tvp5150_selmux(client, decoder->input); - break; - } + break; + } case DECODER_SET_OUTPUT: - { - int *iarg = arg; + { + int *iarg = arg; - /* not much choice of outputs */ - if (*iarg != 0) { - return -EINVAL; + /* not much choice of outputs */ + if (*iarg != 0) { + return -EINVAL; + } + break; } - break; - } case DECODER_ENABLE_OUTPUT: - { - int *iarg = arg; + { + int *iarg = arg; - decoder->enable = (*iarg != 0); + decoder->enable = (*iarg != 0); - tvp5150_selmux(client, decoder->input); + tvp5150_selmux(client, decoder->input); - break; - } - case DECODER_SET_PICTURE: - { - struct video_picture *pic = arg; - if (decoder->bright != pic->brightness) { - /* We want 0 to 255 we get 0-65535 */ - decoder->bright = pic->brightness; - tvp5150_write(client, TVP5150_BRIGHT_CTL, decoder->bright >> 8); + break; } - if (decoder->contrast != pic->contrast) { - /* We want 0 to 255 we get 0-65535 */ - decoder->contrast = pic->contrast; - tvp5150_write(client, TVP5150_CONTRAST_CTL, decoder->contrast >> 8); + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *qc = arg; + u8 i, n; + + dprintk(1, KERN_DEBUG "VIDIOC_QUERYCTRL"); + + n = sizeof(tvp5150_qctrl) / sizeof(tvp5150_qctrl[0]); + for (i = 0; i < n; i++) + if (qc->id && qc->id == tvp5150_qctrl[i].id) { + memcpy(qc, &(tvp5150_qctrl[i]), + sizeof(*qc)); + return 0; + } + + return -EINVAL; } - if (decoder->sat != pic->colour) { - /* We want 0 to 255 we get 0-65535 */ - decoder->sat = pic->colour; - tvp5150_write(client, TVP5150_SATURATION_CTL, decoder->contrast >> 8); + case VIDIOC_G_CTRL: + { + struct v4l2_control *ctrl = arg; + dprintk(1, KERN_DEBUG "VIDIOC_G_CTRL"); + + return tvp5150_get_ctrl(client, ctrl); } - if (decoder->hue != pic->hue) { - /* We want -128 to 127 we get 0-65535 */ - decoder->hue = pic->hue; - tvp5150_write(client, TVP5150_HUE_CTL, (decoder->hue - 32768) >> 8); + case VIDIOC_S_CTRL_OLD: /* ??? */ + case VIDIOC_S_CTRL: + { + struct v4l2_control *ctrl = arg; + u8 i, n; + dprintk(1, KERN_DEBUG "VIDIOC_S_CTRL"); + n = sizeof(tvp5150_qctrl) / sizeof(tvp5150_qctrl[0]); + for (i = 0; i < n; i++) + if (ctrl->id == tvp5150_qctrl[i].id) { + if (ctrl->value < + tvp5150_qctrl[i].minimum + || ctrl->value > + tvp5150_qctrl[i].maximum) + return -ERANGE; + dprintk(1, + KERN_DEBUG + "VIDIOC_S_CTRL: id=%d, value=%d", + ctrl->id, ctrl->value); + return tvp5150_set_ctrl(client, ctrl); + } + return -EINVAL; + } + + case DECODER_SET_PICTURE: + { + struct video_picture *pic = arg; + if (decoder->bright != pic->brightness) { + /* We want 0 to 255 we get 0-65535 */ + decoder->bright = pic->brightness; + tvp5150_write(client, TVP5150_BRIGHT_CTL, + decoder->bright >> 8); + } + if (decoder->contrast != pic->contrast) { + /* We want 0 to 255 we get 0-65535 */ + decoder->contrast = pic->contrast; + tvp5150_write(client, TVP5150_CONTRAST_CTL, + decoder->contrast >> 8); + } + if (decoder->sat != pic->colour) { + /* We want 0 to 255 we get 0-65535 */ + decoder->sat = pic->colour; + tvp5150_write(client, TVP5150_SATURATION_CTL, + decoder->contrast >> 8); + } + if (decoder->hue != pic->hue) { + /* We want -128 to 127 we get 0-65535 */ + decoder->hue = pic->hue; + tvp5150_write(client, TVP5150_HUE_CTL, + (decoder->hue - 32768) >> 8); + } + break; } - break; - } default: return -EINVAL; } @@ -594,15 +713,14 @@ static int tvp5150_command(struct i2c_client *client, ****************************************************************************/ static struct i2c_driver driver; -static struct i2c_client client_template = -{ - .name = "(unset)", - .flags = I2C_CLIENT_ALLOW_USE, - .driver = &driver, +static struct i2c_client client_template = { + .name = "(unset)", + .flags = I2C_CLIENT_ALLOW_USE, + .driver = &driver, }; -static int tvp5150_detect_client (struct i2c_adapter *adapter, - int address, int kind) +static int tvp5150_detect_client(struct i2c_adapter *adapter, + int address, int kind) { struct i2c_client *client; struct tvp5150 *core; @@ -625,7 +743,7 @@ static int tvp5150_detect_client (struct i2c_adapter *adapter, client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); if (client == 0) return -ENOMEM; - memcpy(client,&client_template,sizeof(struct i2c_client)); + memcpy(client, &client_template, sizeof(struct i2c_client)); core = kmalloc(sizeof(struct tvp5150), GFP_KERNEL); if (core == 0) { @@ -651,13 +769,13 @@ static int tvp5150_detect_client (struct i2c_adapter *adapter, return rv; } - dump_reg (client); + if (debug > 1) + dump_reg(client); return 0; } -static int -tvp5150_attach_adapter (struct i2c_adapter *adapter) +static int tvp5150_attach_adapter(struct i2c_adapter *adapter) { dprintk(1, KERN_INFO @@ -666,8 +784,7 @@ tvp5150_attach_adapter (struct i2c_adapter *adapter) return i2c_probe(adapter, &addr_data, &tvp5150_detect_client); } -static int -tvp5150_detach_client (struct i2c_client *client) +static int tvp5150_detach_client(struct i2c_client *client) { struct tvp5150 *decoder = i2c_get_clientdata(client); int err; @@ -699,14 +816,12 @@ static struct i2c_driver driver = { .command = tvp5150_command, }; -static int __init -tvp5150_init (void) +static int __init tvp5150_init(void) { return i2c_add_driver(&driver); } -static void __exit -tvp5150_exit (void) +static void __exit tvp5150_exit(void) { i2c_del_driver(&driver); } |