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[media] em28xx: move some video-specific functions to em28xx-video

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Now that we want to split the video handling to a separate
module, move all video-specific functions to em28xx-video.

No functional changes.

Reviewed-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2013-12-22 15:28:26 -03:00
parent 547bf25081
commit 0560f337f3
4 changed files with 371 additions and 370 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

107
drivers/media/usb/em28xx/em28xx-cards.c
View File

@ -2529,113 +2529,6 @@ static void em28xx_pre_card_setup(struct em28xx *dev)
em28xx_set_mode(dev, EM28XX_SUSPEND);
}
static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
{
memset(ctl, 0, sizeof(*ctl));
ctl->fname = XC2028_DEFAULT_FIRMWARE;
ctl->max_len = 64;
ctl->mts = em28xx_boards[dev->model].mts_firmware;
switch (dev->model) {
case EM2880_BOARD_EMPIRE_DUAL_TV:
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
case EM2882_BOARD_TERRATEC_HYBRID_XS:
ctl->demod = XC3028_FE_ZARLINK456;
break;
case EM2880_BOARD_TERRATEC_HYBRID_XS:
case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
case EM2881_BOARD_PINNACLE_HYBRID_PRO:
ctl->demod = XC3028_FE_ZARLINK456;
break;
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
ctl->demod = XC3028_FE_DEFAULT;
break;
case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
ctl->demod = XC3028_FE_DEFAULT;
ctl->fname = XC3028L_DEFAULT_FIRMWARE;
break;
case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
/* FIXME: Better to specify the needed IF */
ctl->demod = XC3028_FE_DEFAULT;
break;
case EM2883_BOARD_KWORLD_HYBRID_330U:
case EM2882_BOARD_DIKOM_DK300:
case EM2882_BOARD_KWORLD_VS_DVBT:
ctl->demod = XC3028_FE_CHINA;
ctl->fname = XC2028_DEFAULT_FIRMWARE;
break;
case EM2882_BOARD_EVGA_INDTUBE:
ctl->demod = XC3028_FE_CHINA;
ctl->fname = XC3028L_DEFAULT_FIRMWARE;
break;
default:
ctl->demod = XC3028_FE_OREN538;
}
}
static void em28xx_tuner_setup(struct em28xx *dev)
{
struct tuner_setup tun_setup;
struct v4l2_frequency f;
if (dev->tuner_type == TUNER_ABSENT)
return;
memset(&tun_setup, 0, sizeof(tun_setup));
tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
tun_setup.tuner_callback = em28xx_tuner_callback;
if (dev->board.radio.type) {
tun_setup.type = dev->board.radio.type;
tun_setup.addr = dev->board.radio_addr;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
}
if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) {
tun_setup.type = dev->tuner_type;
tun_setup.addr = dev->tuner_addr;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
}
if (dev->tda9887_conf) {
struct v4l2_priv_tun_config tda9887_cfg;
tda9887_cfg.tuner = TUNER_TDA9887;
tda9887_cfg.priv = &dev->tda9887_conf;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg);
}
if (dev->tuner_type == TUNER_XC2028) {
struct v4l2_priv_tun_config xc2028_cfg;
struct xc2028_ctrl ctl;
memset(&xc2028_cfg, 0, sizeof(xc2028_cfg));
memset(&ctl, 0, sizeof(ctl));
em28xx_setup_xc3028(dev, &ctl);
xc2028_cfg.tuner = TUNER_XC2028;
xc2028_cfg.priv = &ctl;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg);
}
/* configure tuner */
f.tuner = 0;
f.type = V4L2_TUNER_ANALOG_TV;
f.frequency = 9076; /* just a magic number */
dev->ctl_freq = f.frequency;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
}
static int em28xx_hint_board(struct em28xx *dev)
{
int i;

259
drivers/media/usb/em28xx/em28xx-core.c
View File

@ -53,14 +53,6 @@ MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
printk(KERN_INFO "%s %s :"fmt, \
dev->name, __func__ , ##arg); } while (0)
static int alt;
module_param(alt, int, 0644);
MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
static unsigned int disable_vbi;
module_param(disable_vbi, int, 0644);
MODULE_PARM_DESC(disable_vbi, "disable vbi support");
/* FIXME */
#define em28xx_isocdbg(fmt, arg...) do {\
if (core_debug) \
@ -603,24 +595,6 @@ init_audio:
}
EXPORT_SYMBOL_GPL(em28xx_audio_setup);
int em28xx_colorlevels_set_default(struct em28xx *dev)
{
em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT);
em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT);
em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT);
em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT);
em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20);
em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20);
em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20);
em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20);
em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00);
em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00);
return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00);
}
const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
enum em28xx_led_role role)
{
@ -696,227 +670,6 @@ int em28xx_capture_start(struct em28xx *dev, int start)
return rc;
}
int em28xx_vbi_supported(struct em28xx *dev)
{
/* Modprobe option to manually disable */
if (disable_vbi == 1)
return 0;
if (dev->board.is_webcam)
return 0;
/* FIXME: check subdevices for VBI support */
if (dev->chip_id == CHIP_ID_EM2860 ||
dev->chip_id == CHIP_ID_EM2883)
return 1;
/* Version of em28xx that does not support VBI */
return 0;
}
int em28xx_set_outfmt(struct em28xx *dev)
{
int ret;
u8 fmt, vinctrl;
fmt = dev->format->reg;
if (!dev->is_em25xx)
fmt |= 0x20;
/*
* NOTE: it's not clear if this is really needed !
* The datasheets say bit 5 is a reserved bit and devices seem to work
* fine without it. But the Windows driver sets it for em2710/50+em28xx
* devices and we've always been setting it, too.
*
* em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set,
* it's likely used for an additional (compressed ?) format there.
*/
ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt);
if (ret < 0)
return ret;
ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode);
if (ret < 0)
return ret;
vinctrl = dev->vinctl;
if (em28xx_vbi_supported(dev) == 1) {
vinctrl |= EM28XX_VINCTRL_VBI_RAW;
em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00);
em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4);
em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height);
if (dev->norm & V4L2_STD_525_60) {
/* NTSC */
em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09);
} else if (dev->norm & V4L2_STD_625_50) {
/* PAL */
em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07);
}
}
return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl);
}
static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,
u8 ymin, u8 ymax)
{
em28xx_coredbg("em28xx Scale: (%d,%d)-(%d,%d)\n",
xmin, ymin, xmax, ymax);
em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1);
em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1);
em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1);
return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1);
}
static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
u16 width, u16 height)
{
u8 cwidth = width >> 2;
u8 cheight = height >> 2;
u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01);
/* NOTE: size limit: 2047x1023 = 2MPix */
em28xx_coredbg("capture area set to (%d,%d): %dx%d\n",
hstart, vstart,
((overflow & 2) << 9 | cwidth << 2),
((overflow & 1) << 10 | cheight << 2));
em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1);
em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1);
em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1);
em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1);
em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1);
/* FIXME: function/meaning of these registers ? */
/* FIXME: align width+height to multiples of 4 ?! */
if (dev->is_em25xx) {
em28xx_write_reg(dev, 0x34, width >> 4);
em28xx_write_reg(dev, 0x35, height >> 4);
}
}
static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
{
u8 mode;
/* the em2800 scaler only supports scaling down to 50% */
if (dev->board.is_em2800) {
mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00);
} else {
u8 buf[2];
buf[0] = h;
buf[1] = h >> 8;
em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2);
buf[0] = v;
buf[1] = v >> 8;
em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2);
/* it seems that both H and V scalers must be active
to work correctly */
mode = (h || v) ? 0x30 : 0x00;
}
return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30);
}
/* FIXME: this only function read values from dev */
int em28xx_resolution_set(struct em28xx *dev)
{
int width, height;
width = norm_maxw(dev);
height = norm_maxh(dev);
/* Properly setup VBI */
dev->vbi_width = 720;
if (dev->norm & V4L2_STD_525_60)
dev->vbi_height = 12;
else
dev->vbi_height = 18;
em28xx_set_outfmt(dev);
em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
/* If we don't set the start position to 2 in VBI mode, we end up
with line 20/21 being YUYV encoded instead of being in 8-bit
greyscale. The core of the issue is that line 21 (and line 23 for
PAL WSS) are inside of active video region, and as a result they
get the pixelformatting associated with that area. So by cropping
it out, we end up with the same format as the rest of the VBI
region */
if (em28xx_vbi_supported(dev) == 1)
em28xx_capture_area_set(dev, 0, 2, width, height);
else
em28xx_capture_area_set(dev, 0, 0, width, height);
return em28xx_scaler_set(dev, dev->hscale, dev->vscale);
}
/* Set USB alternate setting for analog video */
int em28xx_set_alternate(struct em28xx *dev)
{
int errCode;
int i;
unsigned int min_pkt_size = dev->width * 2 + 4;
/* NOTE: for isoc transfers, only alt settings > 0 are allowed
bulk transfers seem to work only with alt=0 ! */
dev->alt = 0;
if ((alt > 0) && (alt < dev->num_alt)) {
em28xx_coredbg("alternate forced to %d\n", dev->alt);
dev->alt = alt;
goto set_alt;
}
if (dev->analog_xfer_bulk)
goto set_alt;
/* When image size is bigger than a certain value,
the frame size should be increased, otherwise, only
green screen will be received.
*/
if (dev->width * 2 * dev->height > 720 * 240 * 2)
min_pkt_size *= 2;
for (i = 0; i < dev->num_alt; i++) {
/* stop when the selected alt setting offers enough bandwidth */
if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) {
dev->alt = i;
break;
/* otherwise make sure that we end up with the maximum bandwidth
because the min_pkt_size equation might be wrong...
*/
} else if (dev->alt_max_pkt_size_isoc[i] >
dev->alt_max_pkt_size_isoc[dev->alt])
dev->alt = i;
}
set_alt:
/* NOTE: for bulk transfers, we need to call usb_set_interface()
* even if the previous settings were the same. Otherwise streaming
* fails with all urbs having status = -EOVERFLOW ! */
if (dev->analog_xfer_bulk) {
dev->max_pkt_size = 512; /* USB 2.0 spec */
dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER;
} else { /* isoc */
em28xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
min_pkt_size, dev->alt);
dev->max_pkt_size =
dev->alt_max_pkt_size_isoc[dev->alt];
dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS;
}
em28xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
dev->alt, dev->max_pkt_size);
errCode = usb_set_interface(dev->udev, 0, dev->alt);
if (errCode < 0) {
em28xx_errdev("cannot change alternate number to %d (error=%i)\n",
dev->alt, errCode);
return errCode;
}
return 0;
}
int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio)
{
int rc = 0;
@ -1281,18 +1034,6 @@ int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
}
EXPORT_SYMBOL_GPL(em28xx_init_usb_xfer);
/*
* em28xx_wake_i2c()
* configure i2c attached devices
*/
void em28xx_wake_i2c(struct em28xx *dev)
{
v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0);
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
INPUT(dev->ctl_input)->vmux, 0, 0);
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
}
/*
* Device control list
*/

374
drivers/media/usb/em28xx/em28xx-video.c
View File

@ -53,15 +53,23 @@
#define EM28XX_VERSION "0.2.0"
static unsigned int isoc_debug;
module_param(isoc_debug, int, 0644);
MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
static unsigned int disable_vbi;
module_param(disable_vbi, int, 0644);
MODULE_PARM_DESC(disable_vbi, "disable vbi support");
static int alt;
module_param(alt, int, 0644);
MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
#define em28xx_videodbg(fmt, arg...) do {\
if (video_debug) \
printk(KERN_INFO "%s %s :"fmt, \
dev->name, __func__ , ##arg); } while (0)
static unsigned int isoc_debug;
module_param(isoc_debug, int, 0644);
MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
#define em28xx_isocdbg(fmt, arg...) \
do {\
if (isoc_debug) { \
@ -135,6 +143,257 @@ static struct em28xx_fmt format[] = {
},
};
int em28xx_vbi_supported(struct em28xx *dev)
{
/* Modprobe option to manually disable */
if (disable_vbi == 1)
return 0;
if (dev->board.is_webcam)
return 0;
/* FIXME: check subdevices for VBI support */
if (dev->chip_id == CHIP_ID_EM2860 ||
dev->chip_id == CHIP_ID_EM2883)
return 1;
/* Version of em28xx that does not support VBI */
return 0;
}
/*
* em28xx_wake_i2c()
* configure i2c attached devices
*/
void em28xx_wake_i2c(struct em28xx *dev)
{
v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0);
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
INPUT(dev->ctl_input)->vmux, 0, 0);
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
}
int em28xx_colorlevels_set_default(struct em28xx *dev)
{
em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT);
em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT);
em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT);
em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT);
em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT);
em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT);
em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20);
em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20);
em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20);
em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20);
em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00);
em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00);
return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00);
}
int em28xx_set_outfmt(struct em28xx *dev)
{
int ret;
u8 fmt, vinctrl;
fmt = dev->format->reg;
if (!dev->is_em25xx)
fmt |= 0x20;
/*
* NOTE: it's not clear if this is really needed !
* The datasheets say bit 5 is a reserved bit and devices seem to work
* fine without it. But the Windows driver sets it for em2710/50+em28xx
* devices and we've always been setting it, too.
*
* em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set,
* it's likely used for an additional (compressed ?) format there.
*/
ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt);
if (ret < 0)
return ret;
ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode);
if (ret < 0)
return ret;
vinctrl = dev->vinctl;
if (em28xx_vbi_supported(dev) == 1) {
vinctrl |= EM28XX_VINCTRL_VBI_RAW;
em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00);
em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4);
em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height);
if (dev->norm & V4L2_STD_525_60) {
/* NTSC */
em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09);
} else if (dev->norm & V4L2_STD_625_50) {
/* PAL */
em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07);
}
}
return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl);
}
static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,
u8 ymin, u8 ymax)
{
em28xx_videodbg("em28xx Scale: (%d,%d)-(%d,%d)\n",
xmin, ymin, xmax, ymax);
em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1);
em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1);
em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1);
return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1);
}
static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart,
u16 width, u16 height)
{
u8 cwidth = width >> 2;
u8 cheight = height >> 2;
u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01);
/* NOTE: size limit: 2047x1023 = 2MPix */
em28xx_videodbg("capture area set to (%d,%d): %dx%d\n",
hstart, vstart,
((overflow & 2) << 9 | cwidth << 2),
((overflow & 1) << 10 | cheight << 2));
em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1);
em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1);
em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1);
em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1);
em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1);
/* FIXME: function/meaning of these registers ? */
/* FIXME: align width+height to multiples of 4 ?! */
if (dev->is_em25xx) {
em28xx_write_reg(dev, 0x34, width >> 4);
em28xx_write_reg(dev, 0x35, height >> 4);
}
}
static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v)
{
u8 mode;
/* the em2800 scaler only supports scaling down to 50% */
if (dev->board.is_em2800) {
mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00);
} else {
u8 buf[2];
buf[0] = h;
buf[1] = h >> 8;
em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2);
buf[0] = v;
buf[1] = v >> 8;
em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2);
/* it seems that both H and V scalers must be active
to work correctly */
mode = (h || v) ? 0x30 : 0x00;
}
return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30);
}
/* FIXME: this only function read values from dev */
int em28xx_resolution_set(struct em28xx *dev)
{
int width, height;
width = norm_maxw(dev);
height = norm_maxh(dev);
/* Properly setup VBI */
dev->vbi_width = 720;
if (dev->norm & V4L2_STD_525_60)
dev->vbi_height = 12;
else
dev->vbi_height = 18;
em28xx_set_outfmt(dev);
em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
/* If we don't set the start position to 2 in VBI mode, we end up
with line 20/21 being YUYV encoded instead of being in 8-bit
greyscale. The core of the issue is that line 21 (and line 23 for
PAL WSS) are inside of active video region, and as a result they
get the pixelformatting associated with that area. So by cropping
it out, we end up with the same format as the rest of the VBI
region */
if (em28xx_vbi_supported(dev) == 1)
em28xx_capture_area_set(dev, 0, 2, width, height);
else
em28xx_capture_area_set(dev, 0, 0, width, height);
return em28xx_scaler_set(dev, dev->hscale, dev->vscale);
}
/* Set USB alternate setting for analog video */
int em28xx_set_alternate(struct em28xx *dev)
{
int errCode;
int i;
unsigned int min_pkt_size = dev->width * 2 + 4;
/* NOTE: for isoc transfers, only alt settings > 0 are allowed
bulk transfers seem to work only with alt=0 ! */
dev->alt = 0;
if ((alt > 0) && (alt < dev->num_alt)) {
em28xx_videodbg("alternate forced to %d\n", dev->alt);
dev->alt = alt;
goto set_alt;
}
if (dev->analog_xfer_bulk)
goto set_alt;
/* When image size is bigger than a certain value,
the frame size should be increased, otherwise, only
green screen will be received.
*/
if (dev->width * 2 * dev->height > 720 * 240 * 2)
min_pkt_size *= 2;
for (i = 0; i < dev->num_alt; i++) {
/* stop when the selected alt setting offers enough bandwidth */
if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) {
dev->alt = i;
break;
/* otherwise make sure that we end up with the maximum bandwidth
because the min_pkt_size equation might be wrong...
*/
} else if (dev->alt_max_pkt_size_isoc[i] >
dev->alt_max_pkt_size_isoc[dev->alt])
dev->alt = i;
}
set_alt:
/* NOTE: for bulk transfers, we need to call usb_set_interface()
* even if the previous settings were the same. Otherwise streaming
* fails with all urbs having status = -EOVERFLOW ! */
if (dev->analog_xfer_bulk) {
dev->max_pkt_size = 512; /* USB 2.0 spec */
dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER;
} else { /* isoc */
em28xx_videodbg("minimum isoc packet size: %u (alt=%d)\n",
min_pkt_size, dev->alt);
dev->max_pkt_size =
dev->alt_max_pkt_size_isoc[dev->alt];
dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS;
}
em28xx_videodbg("setting alternate %d with wMaxPacketSize=%u\n",
dev->alt, dev->max_pkt_size);
errCode = usb_set_interface(dev->udev, 0, dev->alt);
if (errCode < 0) {
em28xx_errdev("cannot change alternate number to %d (error=%i)\n",
dev->alt, errCode);
return errCode;
}
return 0;
}
/* ------------------------------------------------------------------
DMA and thread functions
------------------------------------------------------------------*/
@ -1817,6 +2076,113 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev,
return vfd;
}
static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl)
{
memset(ctl, 0, sizeof(*ctl));
ctl->fname = XC2028_DEFAULT_FIRMWARE;
ctl->max_len = 64;
ctl->mts = em28xx_boards[dev->model].mts_firmware;
switch (dev->model) {
case EM2880_BOARD_EMPIRE_DUAL_TV:
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
case EM2882_BOARD_TERRATEC_HYBRID_XS:
ctl->demod = XC3028_FE_ZARLINK456;
break;
case EM2880_BOARD_TERRATEC_HYBRID_XS:
case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
case EM2881_BOARD_PINNACLE_HYBRID_PRO:
ctl->demod = XC3028_FE_ZARLINK456;
break;
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
ctl->demod = XC3028_FE_DEFAULT;
break;
case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
ctl->demod = XC3028_FE_DEFAULT;
ctl->fname = XC3028L_DEFAULT_FIRMWARE;
break;
case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
/* FIXME: Better to specify the needed IF */
ctl->demod = XC3028_FE_DEFAULT;
break;
case EM2883_BOARD_KWORLD_HYBRID_330U:
case EM2882_BOARD_DIKOM_DK300:
case EM2882_BOARD_KWORLD_VS_DVBT:
ctl->demod = XC3028_FE_CHINA;
ctl->fname = XC2028_DEFAULT_FIRMWARE;
break;
case EM2882_BOARD_EVGA_INDTUBE:
ctl->demod = XC3028_FE_CHINA;
ctl->fname = XC3028L_DEFAULT_FIRMWARE;
break;
default:
ctl->demod = XC3028_FE_OREN538;
}
}
void em28xx_tuner_setup(struct em28xx *dev)
{
struct tuner_setup tun_setup;
struct v4l2_frequency f;
if (dev->tuner_type == TUNER_ABSENT)
return;
memset(&tun_setup, 0, sizeof(tun_setup));
tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
tun_setup.tuner_callback = em28xx_tuner_callback;
if (dev->board.radio.type) {
tun_setup.type = dev->board.radio.type;
tun_setup.addr = dev->board.radio_addr;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
}
if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) {
tun_setup.type = dev->tuner_type;
tun_setup.addr = dev->tuner_addr;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup);
}
if (dev->tda9887_conf) {
struct v4l2_priv_tun_config tda9887_cfg;
tda9887_cfg.tuner = TUNER_TDA9887;
tda9887_cfg.priv = &dev->tda9887_conf;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg);
}
if (dev->tuner_type == TUNER_XC2028) {
struct v4l2_priv_tun_config xc2028_cfg;
struct xc2028_ctrl ctl;
memset(&xc2028_cfg, 0, sizeof(xc2028_cfg));
memset(&ctl, 0, sizeof(ctl));
em28xx_setup_xc3028(dev, &ctl);
xc2028_cfg.tuner = TUNER_XC2028;
xc2028_cfg.priv = &ctl;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg);
}
/* configure tuner */
f.tuner = 0;
f.type = V4L2_TUNER_ANALOG_TV;
f.frequency = 9076; /* just a magic number */
dev->ctl_freq = f.frequency;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
}
int em28xx_register_analog_devices(struct em28xx *dev)
{
u8 val;

1
drivers/media/usb/em28xx/em28xx.h
View File

@ -748,6 +748,7 @@ void em28xx_init_extension(struct em28xx *dev);
void em28xx_close_extension(struct em28xx *dev);
/* Provided by em28xx-video.c */
void em28xx_tuner_setup(struct em28xx *dev);
int em28xx_vb2_setup(struct em28xx *dev);
int em28xx_register_analog_devices(struct em28xx *dev);
void em28xx_release_analog_resources(struct em28xx *dev);