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path: root/drivers/media/usb/em28xx/em28xx-video.c
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Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-video.c')
-rw-r--r--drivers/media/usb/em28xx/em28xx-video.c1132
1 files changed, 896 insertions, 236 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 1a577ed8ea0..f6b49c98e2c 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -38,9 +38,11 @@
#include <linux/slab.h>
#include "em28xx.h"
+#include "em28xx-v4l.h"
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-event.h>
+#include <media/v4l2-clk.h>
#include <media/msp3400.h>
#include <media/tuner.h>
@@ -49,19 +51,23 @@
"Mauro Carvalho Chehab <mchehab@infradead.org>, " \
"Sascha Sommer <saschasommer@freenet.de>"
-#define DRIVER_DESC "Empia em28xx based USB video device driver"
+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");
-#define EM28XX_VERSION "0.2.0"
+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) { \
@@ -71,7 +77,7 @@ do {\
} while (0)
MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_DESCRIPTION(DRIVER_DESC " - v4l2 interface");
MODULE_LICENSE("GPL");
MODULE_VERSION(EM28XX_VERSION);
@@ -135,6 +141,287 @@ static struct em28xx_fmt format[] = {
},
};
+/*FIXME: maxw should be dependent of alt mode */
+static inline unsigned int norm_maxw(struct em28xx *dev)
+{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
+
+ if (dev->board.is_webcam)
+ return v4l2->sensor_xres;
+
+ if (dev->board.max_range_640_480)
+ return 640;
+
+ return 720;
+}
+
+static inline unsigned int norm_maxh(struct em28xx *dev)
+{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
+
+ if (dev->board.is_webcam)
+ return v4l2->sensor_yres;
+
+ if (dev->board.max_range_640_480)
+ return 480;
+
+ return (v4l2->norm & V4L2_STD_625_50) ? 576 : 480;
+}
+
+static 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
+ */
+static void em28xx_wake_i2c(struct em28xx *dev)
+{
+ struct v4l2_device *v4l2_dev = &dev->v4l2->v4l2_dev;
+ v4l2_device_call_all(v4l2_dev, 0, core, reset, 0);
+ v4l2_device_call_all(v4l2_dev, 0, video, s_routing,
+ INPUT(dev->ctl_input)->vmux, 0, 0);
+ v4l2_device_call_all(v4l2_dev, 0, video, s_stream, 0);
+}
+
+static 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);
+}
+
+static int em28xx_set_outfmt(struct em28xx *dev)
+{
+ int ret;
+ u8 fmt, vinctrl;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
+
+ fmt = v4l2->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, v4l2->vinmode);
+ if (ret < 0)
+ return ret;
+
+ vinctrl = v4l2->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, v4l2->vbi_width/4);
+ em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, v4l2->vbi_height);
+ if (v4l2->norm & V4L2_STD_525_60) {
+ /* NTSC */
+ em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09);
+ } else if (v4l2->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 = 0x00;
+ /* 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(dev, EM28XX_R26_COMPR, mode);
+}
+
+/* FIXME: this only function read values from dev */
+static int em28xx_resolution_set(struct em28xx *dev)
+{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
+ int width = norm_maxw(dev);
+ int height = norm_maxh(dev);
+
+ /* Properly setup VBI */
+ v4l2->vbi_width = 720;
+ if (v4l2->norm & V4L2_STD_525_60)
+ v4l2->vbi_height = 12;
+ else
+ v4l2->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, v4l2->hscale, v4l2->vscale);
+}
+
+/* Set USB alternate setting for analog video */
+static int em28xx_set_alternate(struct em28xx *dev)
+{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
+ int errCode;
+ int i;
+ unsigned int min_pkt_size = v4l2->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 (v4l2->width * 2 * v4l2->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, dev->ifnum, 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
------------------------------------------------------------------*/
@@ -147,7 +434,7 @@ static inline void finish_buffer(struct em28xx *dev,
{
em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
- buf->vb.v4l2_buf.sequence = dev->field_count++;
+ buf->vb.v4l2_buf.sequence = dev->v4l2->field_count++;
buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
@@ -162,9 +449,10 @@ static void em28xx_copy_video(struct em28xx *dev,
unsigned char *usb_buf,
unsigned long len)
{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
void *fieldstart, *startwrite, *startread;
int linesdone, currlinedone, offset, lencopy, remain;
- int bytesperline = dev->width << 1;
+ int bytesperline = v4l2->width << 1;
if (buf->pos + len > buf->length)
len = buf->length - buf->pos;
@@ -172,7 +460,7 @@ static void em28xx_copy_video(struct em28xx *dev,
startread = usb_buf;
remain = len;
- if (dev->progressive || buf->top_field)
+ if (v4l2->progressive || buf->top_field)
fieldstart = buf->vb_buf;
else /* interlaced mode, even nr. of lines */
fieldstart = buf->vb_buf + bytesperline;
@@ -180,7 +468,7 @@ static void em28xx_copy_video(struct em28xx *dev,
linesdone = buf->pos / bytesperline;
currlinedone = buf->pos % bytesperline;
- if (dev->progressive)
+ if (v4l2->progressive)
offset = linesdone * bytesperline + currlinedone;
else
offset = linesdone * bytesperline * 2 + currlinedone;
@@ -204,7 +492,7 @@ static void em28xx_copy_video(struct em28xx *dev,
remain -= lencopy;
while (remain > 0) {
- if (dev->progressive)
+ if (v4l2->progressive)
startwrite += lencopy;
else
startwrite += lencopy + bytesperline;
@@ -250,7 +538,7 @@ static void em28xx_copy_vbi(struct em28xx *dev,
offset = buf->pos;
/* Make sure the bottom field populates the second half of the frame */
if (buf->top_field == 0)
- offset += dev->vbi_width * dev->vbi_height;
+ offset += dev->v4l2->vbi_width * dev->v4l2->vbi_height;
memcpy(buf->vb_buf + offset, usb_buf, len);
buf->pos += len;
@@ -326,13 +614,15 @@ finish_field_prepare_next(struct em28xx *dev,
struct em28xx_buffer *buf,
struct em28xx_dmaqueue *dma_q)
{
- if (dev->progressive || dev->top_field) { /* Brand new frame */
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
+
+ if (v4l2->progressive || v4l2->top_field) { /* Brand new frame */
if (buf != NULL)
finish_buffer(dev, buf);
buf = get_next_buf(dev, dma_q);
}
if (buf != NULL) {
- buf->top_field = dev->top_field;
+ buf->top_field = v4l2->top_field;
buf->pos = 0;
}
@@ -346,6 +636,7 @@ static inline void process_frame_data_em28xx(struct em28xx *dev,
unsigned char *data_pkt,
unsigned int data_len)
{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
struct em28xx_buffer *buf = dev->usb_ctl.vid_buf;
struct em28xx_buffer *vbi_buf = dev->usb_ctl.vbi_buf;
struct em28xx_dmaqueue *dma_q = &dev->vidq;
@@ -365,17 +656,17 @@ static inline void process_frame_data_em28xx(struct em28xx *dev,
data_len -= 4;
} else if (data_pkt[0] == 0x33 && data_pkt[1] == 0x95) {
/* Field start (VBI mode) */
- dev->capture_type = 0;
- dev->vbi_read = 0;
+ v4l2->capture_type = 0;
+ v4l2->vbi_read = 0;
em28xx_isocdbg("VBI START HEADER !!!\n");
- dev->top_field = !(data_pkt[2] & 1);
+ v4l2->top_field = !(data_pkt[2] & 1);
data_pkt += 4;
data_len -= 4;
} else if (data_pkt[0] == 0x22 && data_pkt[1] == 0x5a) {
/* Field start (VBI disabled) */
- dev->capture_type = 2;
+ v4l2->capture_type = 2;
em28xx_isocdbg("VIDEO START HEADER !!!\n");
- dev->top_field = !(data_pkt[2] & 1);
+ v4l2->top_field = !(data_pkt[2] & 1);
data_pkt += 4;
data_len -= 4;
}
@@ -383,37 +674,37 @@ static inline void process_frame_data_em28xx(struct em28xx *dev,
/* NOTE: With bulk transfers, intermediate data packets
* have no continuation header */
- if (dev->capture_type == 0) {
+ if (v4l2->capture_type == 0) {
vbi_buf = finish_field_prepare_next(dev, vbi_buf, vbi_dma_q);
dev->usb_ctl.vbi_buf = vbi_buf;
- dev->capture_type = 1;
+ v4l2->capture_type = 1;
}
- if (dev->capture_type == 1) {
- int vbi_size = dev->vbi_width * dev->vbi_height;
- int vbi_data_len = ((dev->vbi_read + data_len) > vbi_size) ?
- (vbi_size - dev->vbi_read) : data_len;
+ if (v4l2->capture_type == 1) {
+ int vbi_size = v4l2->vbi_width * v4l2->vbi_height;
+ int vbi_data_len = ((v4l2->vbi_read + data_len) > vbi_size) ?
+ (vbi_size - v4l2->vbi_read) : data_len;
/* Copy VBI data */
if (vbi_buf != NULL)
em28xx_copy_vbi(dev, vbi_buf, data_pkt, vbi_data_len);
- dev->vbi_read += vbi_data_len;
+ v4l2->vbi_read += vbi_data_len;
if (vbi_data_len < data_len) {
/* Continue with copying video data */
- dev->capture_type = 2;
+ v4l2->capture_type = 2;
data_pkt += vbi_data_len;
data_len -= vbi_data_len;
}
}
- if (dev->capture_type == 2) {
+ if (v4l2->capture_type == 2) {
buf = finish_field_prepare_next(dev, buf, dma_q);
dev->usb_ctl.vid_buf = buf;
- dev->capture_type = 3;
+ v4l2->capture_type = 3;
}
- if (dev->capture_type == 3 && buf != NULL && data_len > 0)
+ if (v4l2->capture_type == 3 && buf != NULL && data_len > 0)
em28xx_copy_video(dev, buf, data_pkt, data_len);
}
@@ -426,6 +717,7 @@ static inline void process_frame_data_em25xx(struct em28xx *dev,
{
struct em28xx_buffer *buf = dev->usb_ctl.vid_buf;
struct em28xx_dmaqueue *dmaq = &dev->vidq;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
bool frame_end = 0;
/* Check for header */
@@ -434,7 +726,7 @@ static inline void process_frame_data_em25xx(struct em28xx *dev,
if (data_len >= 2) { /* em25xx header is only 2 bytes long */
if ((data_pkt[0] == EM25XX_FRMDATAHDR_BYTE1) &&
((data_pkt[1] & ~EM25XX_FRMDATAHDR_BYTE2_MASK) == 0x00)) {
- dev->top_field = !(data_pkt[1] &
+ v4l2->top_field = !(data_pkt[1] &
EM25XX_FRMDATAHDR_BYTE2_FRAME_ID);
frame_end = data_pkt[1] &
EM25XX_FRMDATAHDR_BYTE2_FRAME_END;
@@ -584,12 +876,14 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
unsigned int sizes[], void *alloc_ctxs[])
{
struct em28xx *dev = vb2_get_drv_priv(vq);
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
unsigned long size;
if (fmt)
size = fmt->fmt.pix.sizeimage;
else
- size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
+ size =
+ (v4l2->width * v4l2->height * v4l2->format->depth + 7) >> 3;
if (size == 0)
return -EINVAL;
@@ -607,12 +901,13 @@ static int
buffer_prepare(struct vb2_buffer *vb)
{
struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
unsigned long size;
em28xx_videodbg("%s, field=%d\n", __func__, vb->v4l2_buf.field);
- size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
+ size = (v4l2->width * v4l2->height * v4l2->format->depth + 7) >> 3;
if (vb2_plane_size(vb, 0) < size) {
em28xx_videodbg("%s data will not fit into plane (%lu < %lu)\n",
@@ -627,6 +922,7 @@ buffer_prepare(struct vb2_buffer *vb)
int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
{
struct em28xx *dev = vb2_get_drv_priv(vq);
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
struct v4l2_frequency f;
int rc = 0;
@@ -638,7 +934,7 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
if (rc)
return rc;
- if (dev->streaming_users++ == 0) {
+ if (v4l2->streaming_users == 0) {
/* First active streaming user, so allocate all the URBs */
/* Allocate the USB bandwidth */
@@ -649,7 +945,7 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
*/
em28xx_wake_i2c(dev);
- dev->capture_type = -1;
+ v4l2->capture_type = -1;
rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE,
dev->analog_xfer_bulk,
EM28XX_NUM_BUFS,
@@ -657,7 +953,7 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
dev->packet_multiplier,
em28xx_urb_data_copy);
if (rc < 0)
- goto fail;
+ return rc;
/*
* djh: it's not clear whether this code is still needed. I'm
@@ -667,21 +963,24 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
/* Ask tuner to go to analog or radio mode */
memset(&f, 0, sizeof(f));
- f.frequency = dev->ctl_freq;
+ f.frequency = v4l2->frequency;
if (vq->owner && vq->owner->vdev->vfl_type == VFL_TYPE_RADIO)
f.type = V4L2_TUNER_RADIO;
else
f.type = V4L2_TUNER_ANALOG_TV;
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
+ v4l2_device_call_all(&v4l2->v4l2_dev,
+ 0, tuner, s_frequency, &f);
}
-fail:
+ v4l2->streaming_users++;
+
return rc;
}
-static int em28xx_stop_streaming(struct vb2_queue *vq)
+static void em28xx_stop_streaming(struct vb2_queue *vq)
{
struct em28xx *dev = vb2_get_drv_priv(vq);
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
struct em28xx_dmaqueue *vidq = &dev->vidq;
unsigned long flags = 0;
@@ -689,7 +988,7 @@ static int em28xx_stop_streaming(struct vb2_queue *vq)
res_free(dev, vq->type);
- if (dev->streaming_users-- == 1) {
+ if (v4l2->streaming_users-- == 1) {
/* Last active user, so shutdown all the URBS */
em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
}
@@ -703,13 +1002,12 @@ static int em28xx_stop_streaming(struct vb2_queue *vq)
}
dev->usb_ctl.vid_buf = NULL;
spin_unlock_irqrestore(&dev->slock, flags);
-
- return 0;
}
-int em28xx_stop_vbi_streaming(struct vb2_queue *vq)
+void em28xx_stop_vbi_streaming(struct vb2_queue *vq)
{
struct em28xx *dev = vb2_get_drv_priv(vq);
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
struct em28xx_dmaqueue *vbiq = &dev->vbiq;
unsigned long flags = 0;
@@ -717,7 +1015,7 @@ int em28xx_stop_vbi_streaming(struct vb2_queue *vq)
res_free(dev, vq->type);
- if (dev->streaming_users-- == 1) {
+ if (v4l2->streaming_users-- == 1) {
/* Last active user, so shutdown all the URBS */
em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
}
@@ -731,8 +1029,6 @@ int em28xx_stop_vbi_streaming(struct vb2_queue *vq)
}
dev->usb_ctl.vbi_buf = NULL;
spin_unlock_irqrestore(&dev->slock, flags);
-
- return 0;
}
static void
@@ -762,16 +1058,17 @@ static struct vb2_ops em28xx_video_qops = {
.wait_finish = vb2_ops_wait_finish,
};
-int em28xx_vb2_setup(struct em28xx *dev)
+static int em28xx_vb2_setup(struct em28xx *dev)
{
int rc;
struct vb2_queue *q;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
/* Setup Videobuf2 for Video capture */
- q = &dev->vb_vidq;
+ q = &v4l2->vb_vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
- q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct em28xx_buffer);
q->ops = &em28xx_video_qops;
@@ -782,10 +1079,10 @@ int em28xx_vb2_setup(struct em28xx *dev)
return rc;
/* Setup Videobuf2 for VBI capture */
- q = &dev->vb_vbiq;
+ q = &v4l2->vb_vbiq;
q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
- q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct em28xx_buffer);
q->ops = &em28xx_vbi_qops;
@@ -802,6 +1099,7 @@ int em28xx_vb2_setup(struct em28xx *dev)
static void video_mux(struct em28xx *dev, int index)
{
+ struct v4l2_device *v4l2_dev = &dev->v4l2->v4l2_dev;
dev->ctl_input = index;
dev->ctl_ainput = INPUT(index)->amux;
dev->ctl_aoutput = INPUT(index)->aout;
@@ -809,28 +1107,28 @@ static void video_mux(struct em28xx *dev, int index)
if (!dev->ctl_aoutput)
dev->ctl_aoutput = EM28XX_AOUT_MASTER;
- v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
+ v4l2_device_call_all(v4l2_dev, 0, video, s_routing,
INPUT(index)->vmux, 0, 0);
if (dev->board.has_msp34xx) {
if (dev->i2s_speed) {
- v4l2_device_call_all(&dev->v4l2_dev, 0, audio,
+ v4l2_device_call_all(v4l2_dev, 0, audio,
s_i2s_clock_freq, dev->i2s_speed);
}
/* Note: this is msp3400 specific */
- v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
+ v4l2_device_call_all(v4l2_dev, 0, audio, s_routing,
dev->ctl_ainput, MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
}
if (dev->board.adecoder != EM28XX_NOADECODER) {
- v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
+ v4l2_device_call_all(v4l2_dev, 0, audio, s_routing,
dev->ctl_ainput, dev->ctl_aoutput, 0);
}
em28xx_audio_analog_set(dev);
}
-void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
+static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
{
struct em28xx *dev = priv;
@@ -854,7 +1152,9 @@ void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct em28xx *dev = container_of(ctrl->handler, struct em28xx, ctrl_handler);
+ struct em28xx_v4l2 *v4l2 =
+ container_of(ctrl->handler, struct em28xx_v4l2, ctrl_handler);
+ struct em28xx *dev = v4l2->dev;
int ret = -EINVAL;
switch (ctrl->id) {
@@ -889,7 +1189,7 @@ static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl)
return (ret < 0) ? ret : 0;
}
-const struct v4l2_ctrl_ops em28xx_ctrl_ops = {
+static const struct v4l2_ctrl_ops em28xx_ctrl_ops = {
.s_ctrl = em28xx_s_ctrl,
};
@@ -929,19 +1229,20 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
- f->fmt.pix.width = dev->width;
- f->fmt.pix.height = dev->height;
- f->fmt.pix.pixelformat = dev->format->fourcc;
- f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
- f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height;
+ f->fmt.pix.width = v4l2->width;
+ f->fmt.pix.height = v4l2->height;
+ f->fmt.pix.pixelformat = v4l2->format->fourcc;
+ f->fmt.pix.bytesperline = (v4l2->width * v4l2->format->depth + 7) >> 3;
+ f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * v4l2->height;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
/* FIXME: TOP? NONE? BOTTOM? ALTENATE? */
- if (dev->progressive)
+ if (v4l2->progressive)
f->fmt.pix.field = V4L2_FIELD_NONE;
else
- f->fmt.pix.field = dev->interlaced ?
+ f->fmt.pix.field = v4l2->interlaced_fieldmode ?
V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
return 0;
}
@@ -962,6 +1263,7 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
unsigned int width = f->fmt.pix.width;
unsigned int height = f->fmt.pix.height;
unsigned int maxw = norm_maxw(dev);
@@ -1003,11 +1305,12 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3;
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- if (dev->progressive)
+ if (v4l2->progressive)
f->fmt.pix.field = V4L2_FIELD_NONE;
else
- f->fmt.pix.field = dev->interlaced ?
+ f->fmt.pix.field = v4l2->interlaced_fieldmode ?
V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
+ f->fmt.pix.priv = 0;
return 0;
}
@@ -1016,17 +1319,19 @@ static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc,
unsigned width, unsigned height)
{
struct em28xx_fmt *fmt;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
fmt = format_by_fourcc(fourcc);
if (!fmt)
return -EINVAL;
- dev->format = fmt;
- dev->width = width;
- dev->height = height;
+ v4l2->format = fmt;
+ v4l2->width = width;
+ v4l2->height = height;
/* set new image size */
- size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
+ size_to_scale(dev, v4l2->width, v4l2->height,
+ &v4l2->hscale, &v4l2->vscale);
em28xx_resolution_set(dev);
@@ -1037,8 +1342,9 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct em28xx *dev = video_drvdata(file);
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
- if (dev->streaming_users > 0)
+ if (v4l2->streaming_users > 0)
return -EBUSY;
vidioc_try_fmt_vid_cap(file, priv, f);
@@ -1052,7 +1358,7 @@ static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- *norm = dev->norm;
+ *norm = dev->v4l2->norm;
return 0;
}
@@ -1062,24 +1368,25 @@ static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm)
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm);
+ v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, video, querystd, norm);
return 0;
}
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
struct v4l2_format f;
- if (norm == dev->norm)
+ if (norm == v4l2->norm)
return 0;
- if (dev->streaming_users > 0)
+ if (v4l2->streaming_users > 0)
return -EBUSY;
- dev->norm = norm;
+ v4l2->norm = norm;
/* Adjusts width/height, if needed */
f.fmt.pix.width = 720;
@@ -1087,12 +1394,13 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
vidioc_try_fmt_vid_cap(file, priv, &f);
/* set new image size */
- dev->width = f.fmt.pix.width;
- dev->height = f.fmt.pix.height;
- size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
+ v4l2->width = f.fmt.pix.width;
+ v4l2->height = f.fmt.pix.height;
+ size_to_scale(dev, v4l2->width, v4l2->height,
+ &v4l2->hscale, &v4l2->vscale);
em28xx_resolution_set(dev);
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
+ v4l2_device_call_all(&v4l2->v4l2_dev, 0, video, s_std, v4l2->norm);
return 0;
}
@@ -1100,16 +1408,17 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
static int vidioc_g_parm(struct file *file, void *priv,
struct v4l2_streamparm *p)
{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
int rc = 0;
p->parm.capture.readbuffers = EM28XX_MIN_BUF;
if (dev->board.is_webcam)
- rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0,
+ rc = v4l2_device_call_until_err(&v4l2->v4l2_dev, 0,
video, g_parm, p);
else
- v4l2_video_std_frame_period(dev->norm,
+ v4l2_video_std_frame_period(v4l2->norm,
&p->parm.capture.timeperframe);
return rc;
@@ -1122,7 +1431,8 @@ static int vidioc_s_parm(struct file *file, void *priv,
struct em28xx *dev = fh->dev;
p->parm.capture.readbuffers = EM28XX_MIN_BUF;
- return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p);
+ return v4l2_device_call_until_err(&dev->v4l2->v4l2_dev,
+ 0, video, s_parm, p);
}
static const char *iname[] = {
@@ -1159,7 +1469,7 @@ static int vidioc_enum_input(struct file *file, void *priv,
(EM28XX_VMUX_CABLE == INPUT(n)->type))
i->type = V4L2_INPUT_TYPE_TUNER;
- i->std = dev->vdev->tvnorms;
+ i->std = dev->v4l2->vdev->tvnorms;
/* webcams do not have the STD API */
if (dev->board.is_webcam)
i->capabilities = 0;
@@ -1261,7 +1571,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
strcpy(t->name, "Tuner");
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
+ v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, g_tuner, t);
return 0;
}
@@ -1274,7 +1584,7 @@ static int vidioc_s_tuner(struct file *file, void *priv,
if (0 != t->index)
return -EINVAL;
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
+ v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, s_tuner, t);
return 0;
}
@@ -1283,27 +1593,29 @@ static int vidioc_g_frequency(struct file *file, void *priv,
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
if (0 != f->tuner)
return -EINVAL;
- f->frequency = dev->ctl_freq;
+ f->frequency = v4l2->frequency;
return 0;
}
static int vidioc_s_frequency(struct file *file, void *priv,
const struct v4l2_frequency *f)
{
- struct v4l2_frequency new_freq = *f;
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
+ struct v4l2_frequency new_freq = *f;
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
if (0 != f->tuner)
return -EINVAL;
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
- dev->ctl_freq = new_freq.frequency;
+ v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, s_frequency, f);
+ v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, g_frequency, &new_freq);
+ v4l2->frequency = new_freq.frequency;
return 0;
}
@@ -1320,7 +1632,8 @@ static int vidioc_g_chip_info(struct file *file, void *priv,
if (chip->match.addr == 1)
strlcpy(chip->name, "ac97", sizeof(chip->name));
else
- strlcpy(chip->name, dev->v4l2_dev.name, sizeof(chip->name));
+ strlcpy(chip->name,
+ dev->v4l2->v4l2_dev.name, sizeof(chip->name));
return 0;
}
@@ -1366,7 +1679,7 @@ static int vidioc_g_register(struct file *file, void *priv,
reg->val = ret;
} else {
__le16 val = 0;
- ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
+ ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
reg->reg, (char *)&val, 2);
if (ret < 0)
return ret;
@@ -1401,9 +1714,10 @@ static int vidioc_s_register(struct file *file, void *priv,
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
- struct video_device *vdev = video_devdata(file);
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
+ struct video_device *vdev = video_devdata(file);
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
strlcpy(cap->driver, "em28xx", sizeof(cap->driver));
strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card));
@@ -1425,9 +1739,9 @@ static int vidioc_querycap(struct file *file, void *priv,
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
V4L2_CAP_READWRITE | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
- if (dev->vbi_dev)
+ if (v4l2->vbi_dev)
cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
- if (dev->radio_dev)
+ if (v4l2->radio_dev)
cap->capabilities |= V4L2_CAP_RADIO;
return 0;
}
@@ -1492,24 +1806,25 @@ static int vidioc_enum_framesizes(struct file *file, void *priv,
static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
struct v4l2_format *format)
{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
- format->fmt.vbi.samples_per_line = dev->vbi_width;
+ format->fmt.vbi.samples_per_line = v4l2->vbi_width;
format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
format->fmt.vbi.offset = 0;
format->fmt.vbi.flags = 0;
format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
- format->fmt.vbi.count[0] = dev->vbi_height;
- format->fmt.vbi.count[1] = dev->vbi_height;
+ format->fmt.vbi.count[0] = v4l2->vbi_height;
+ format->fmt.vbi.count[1] = v4l2->vbi_height;
memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
/* Varies by video standard (NTSC, PAL, etc.) */
- if (dev->norm & V4L2_STD_525_60) {
+ if (v4l2->norm & V4L2_STD_525_60) {
/* NTSC */
format->fmt.vbi.start[0] = 10;
format->fmt.vbi.start[1] = 273;
- } else if (dev->norm & V4L2_STD_625_50) {
+ } else if (v4l2->norm & V4L2_STD_625_50) {
/* PAL */
format->fmt.vbi.start[0] = 6;
format->fmt.vbi.start[1] = 318;
@@ -1532,7 +1847,7 @@ static int radio_g_tuner(struct file *file, void *priv,
strcpy(t->name, "Radio");
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
+ v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, g_tuner, t);
return 0;
}
@@ -1545,12 +1860,27 @@ static int radio_s_tuner(struct file *file, void *priv,
if (0 != t->index)
return -EINVAL;
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
+ v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, tuner, s_tuner, t);
return 0;
}
/*
+ * em28xx_free_v4l2() - Free struct em28xx_v4l2
+ *
+ * @ref: struct kref for struct em28xx_v4l2
+ *
+ * Called when all users of struct em28xx_v4l2 are gone
+ */
+static void em28xx_free_v4l2(struct kref *ref)
+{
+ struct em28xx_v4l2 *v4l2 = container_of(ref, struct em28xx_v4l2, ref);
+
+ v4l2->dev->v4l2 = NULL;
+ kfree(v4l2);
+}
+
+/*
* em28xx_v4l2_open()
* inits the device and starts isoc transfer
*/
@@ -1558,6 +1888,7 @@ static int em28xx_v4l2_open(struct file *filp)
{
struct video_device *vdev = video_devdata(filp);
struct em28xx *dev = video_drvdata(filp);
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
enum v4l2_buf_type fh_type = 0;
struct em28xx_fh *fh;
@@ -1568,12 +1899,15 @@ static int em28xx_v4l2_open(struct file *filp)
case VFL_TYPE_VBI:
fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
break;
+ case VFL_TYPE_RADIO:
+ break;
+ default:
+ return -EINVAL;
}
em28xx_videodbg("open dev=%s type=%s users=%d\n",
video_device_node_name(vdev), v4l2_type_names[fh_type],
- dev->users);
-
+ v4l2->users);
if (mutex_lock_interruptible(&dev->lock))
return -ERESTARTSYS;
@@ -1588,23 +1922,27 @@ static int em28xx_v4l2_open(struct file *filp)
fh->type = fh_type;
filp->private_data = fh;
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
+ if (v4l2->users == 0) {
em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
- em28xx_resolution_set(dev);
- /* Needed, since GPIO might have disabled power of
- some i2c device
+ if (vdev->vfl_type != VFL_TYPE_RADIO)
+ em28xx_resolution_set(dev);
+
+ /*
+ * Needed, since GPIO might have disabled power
+ * of some i2c devices
*/
em28xx_wake_i2c(dev);
-
}
if (vdev->vfl_type == VFL_TYPE_RADIO) {
em28xx_videodbg("video_open: setting radio device\n");
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
+ v4l2_device_call_all(&v4l2->v4l2_dev, 0, tuner, s_radio);
}
- dev->users++;
+ kref_get(&dev->ref);
+ kref_get(&v4l2->ref);
+ v4l2->users++;
mutex_unlock(&dev->lock);
v4l2_fh_add(&fh->fh);
@@ -1613,40 +1951,92 @@ static int em28xx_v4l2_open(struct file *filp)
}
/*
- * em28xx_realease_resources()
+ * em28xx_v4l2_fini()
* unregisters the v4l2,i2c and usb devices
* called when the device gets disconected or at module unload
*/
-void em28xx_release_analog_resources(struct em28xx *dev)
+static int em28xx_v4l2_fini(struct em28xx *dev)
{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
- /*FIXME: I2C IR should be disconnected */
+ if (dev->is_audio_only) {
+ /* Shouldn't initialize IR for this interface */
+ return 0;
+ }
- if (dev->radio_dev) {
- if (video_is_registered(dev->radio_dev))
- video_unregister_device(dev->radio_dev);
- else
- video_device_release(dev->radio_dev);
- dev->radio_dev = NULL;
+ if (!dev->has_video) {
+ /* This device does not support the v4l2 extension */
+ return 0;
+ }
+
+ if (v4l2 == NULL)
+ return 0;
+
+ em28xx_info("Closing video extension");
+
+ mutex_lock(&dev->lock);
+
+ v4l2_device_disconnect(&v4l2->v4l2_dev);
+
+ em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
+
+ if (v4l2->radio_dev) {
+ em28xx_info("V4L2 device %s deregistered\n",
+ video_device_node_name(v4l2->radio_dev));
+ video_unregister_device(v4l2->radio_dev);
}
- if (dev->vbi_dev) {
+ if (v4l2->vbi_dev) {
em28xx_info("V4L2 device %s deregistered\n",
- video_device_node_name(dev->vbi_dev));
- if (video_is_registered(dev->vbi_dev))
- video_unregister_device(dev->vbi_dev);
- else
- video_device_release(dev->vbi_dev);
- dev->vbi_dev = NULL;
+ video_device_node_name(v4l2->vbi_dev));
+ video_unregister_device(v4l2->vbi_dev);
}
- if (dev->vdev) {
+ if (v4l2->vdev) {
em28xx_info("V4L2 device %s deregistered\n",
- video_device_node_name(dev->vdev));
- if (video_is_registered(dev->vdev))
- video_unregister_device(dev->vdev);
- else
- video_device_release(dev->vdev);
- dev->vdev = NULL;
+ video_device_node_name(v4l2->vdev));
+ video_unregister_device(v4l2->vdev);
+ }
+
+ v4l2_ctrl_handler_free(&v4l2->ctrl_handler);
+ v4l2_device_unregister(&v4l2->v4l2_dev);
+
+ if (v4l2->clk) {
+ v4l2_clk_unregister_fixed(v4l2->clk);
+ v4l2->clk = NULL;
}
+
+ kref_put(&v4l2->ref, em28xx_free_v4l2);
+
+ mutex_unlock(&dev->lock);
+
+ kref_put(&dev->ref, em28xx_free_device);
+
+ return 0;
+}
+
+static int em28xx_v4l2_suspend(struct em28xx *dev)
+{
+ if (dev->is_audio_only)
+ return 0;
+
+ if (!dev->has_video)
+ return 0;
+
+ em28xx_info("Suspending video extension");
+ em28xx_stop_urbs(dev);
+ return 0;
+}
+
+static int em28xx_v4l2_resume(struct em28xx *dev)
+{
+ if (dev->is_audio_only)
+ return 0;
+
+ if (!dev->has_video)
+ return 0;
+
+ em28xx_info("Resuming video extension");
+ /* what do we do here */
+ return 0;
}
/*
@@ -1656,28 +2046,23 @@ void em28xx_release_analog_resources(struct em28xx *dev)
*/
static int em28xx_v4l2_close(struct file *filp)
{
- struct em28xx_fh *fh = filp->private_data;
- struct em28xx *dev = fh->dev;
+ struct em28xx_fh *fh = filp->private_data;
+ struct em28xx *dev = fh->dev;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
int errCode;
- em28xx_videodbg("users=%d\n", dev->users);
+ em28xx_videodbg("users=%d\n", v4l2->users);
- mutex_lock(&dev->lock);
vb2_fop_release(filp);
+ mutex_lock(&dev->lock);
- if (dev->users == 1) {
- /* the device is already disconnect,
- free the remaining resources */
- if (dev->disconnected) {
- em28xx_release_resources(dev);
- kfree(dev->alt_max_pkt_size_isoc);
- mutex_unlock(&dev->lock);
- kfree(dev);
- return 0;
- }
+ if (v4l2->users == 1) {
+ /* No sense to try to write to the device */
+ if (dev->disconnected)
+ goto exit;
/* Save some power by putting tuner to sleep */
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
+ v4l2_device_call_all(&v4l2->v4l2_dev, 0, core, s_power, 0);
/* do this before setting alternate! */
em28xx_set_mode(dev, EM28XX_SUSPEND);
@@ -1692,8 +2077,12 @@ static int em28xx_v4l2_close(struct file *filp)
}
}
- dev->users--;
+exit:
+ v4l2->users--;
+ kref_put(&v4l2->ref, em28xx_free_v4l2);
mutex_unlock(&dev->lock);
+ kref_put(&dev->ref, em28xx_free_device);
+
return 0;
}
@@ -1751,11 +2140,10 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
};
static const struct video_device em28xx_video_template = {
- .fops = &em28xx_v4l_fops,
- .release = video_device_release_empty,
- .ioctl_ops = &video_ioctl_ops,
-
- .tvnorms = V4L2_STD_ALL,
+ .fops = &em28xx_v4l_fops,
+ .ioctl_ops = &video_ioctl_ops,
+ .release = video_device_release,
+ .tvnorms = V4L2_STD_ALL,
};
static const struct v4l2_file_operations radio_fops = {
@@ -1781,14 +2169,30 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = {
};
static struct video_device em28xx_radio_template = {
- .name = "em28xx-radio",
- .fops = &radio_fops,
- .ioctl_ops = &radio_ioctl_ops,
+ .fops = &radio_fops,
+ .ioctl_ops = &radio_ioctl_ops,
+ .release = video_device_release,
};
-/******************************** usb interface ******************************/
+/* I2C possible address to saa7115, tvp5150, msp3400, tvaudio */
+static unsigned short saa711x_addrs[] = {
+ 0x4a >> 1, 0x48 >> 1, /* SAA7111, SAA7111A and SAA7113 */
+ 0x42 >> 1, 0x40 >> 1, /* SAA7114, SAA7115 and SAA7118 */
+ I2C_CLIENT_END };
+
+static unsigned short tvp5150_addrs[] = {
+ 0xb8 >> 1,
+ 0xba >> 1,
+ I2C_CLIENT_END
+};
+static unsigned short msp3400_addrs[] = {
+ 0x80 >> 1,
+ 0x88 >> 1,
+ I2C_CLIENT_END
+};
+/******************************** usb interface ******************************/
static struct video_device *em28xx_vdev_init(struct em28xx *dev,
const struct video_device *template,
@@ -1801,7 +2205,7 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev,
return NULL;
*vfd = *template;
- vfd->v4l2_dev = &dev->v4l2_dev;
+ vfd->v4l2_dev = &dev->v4l2->v4l2_dev;
vfd->debug = video_debug;
vfd->lock = &dev->lock;
set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
@@ -1815,22 +2219,232 @@ static struct video_device *em28xx_vdev_init(struct em28xx *dev,
return vfd;
}
-int em28xx_register_analog_devices(struct em28xx *dev)
+static void em28xx_tuner_setup(struct em28xx *dev, unsigned short tuner_addr)
+{
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
+ struct v4l2_device *v4l2_dev = &v4l2->v4l2_dev;
+ struct tuner_setup tun_setup;
+ struct v4l2_frequency f;
+
+ 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(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 = tuner_addr;
+
+ v4l2_device_call_all(v4l2_dev,
+ 0, tuner, s_type_addr, &tun_setup);
+ }
+
+ if (dev->board.tda9887_conf) {
+ struct v4l2_priv_tun_config tda9887_cfg;
+
+ tda9887_cfg.tuner = TUNER_TDA9887;
+ tda9887_cfg.priv = &dev->board.tda9887_conf;
+
+ v4l2_device_call_all(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(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 */
+ v4l2->frequency = f.frequency;
+ v4l2_device_call_all(v4l2_dev, 0, tuner, s_frequency, &f);
+}
+
+static int em28xx_v4l2_init(struct em28xx *dev)
{
u8 val;
int ret;
unsigned int maxw;
+ struct v4l2_ctrl_handler *hdl;
+ struct em28xx_v4l2 *v4l2;
+
+ if (dev->is_audio_only) {
+ /* Shouldn't initialize IR for this interface */
+ return 0;
+ }
+
+ if (!dev->has_video) {
+ /* This device does not support the v4l2 extension */
+ return 0;
+ }
+
+ em28xx_info("Registering V4L2 extension\n");
+
+ mutex_lock(&dev->lock);
- printk(KERN_INFO "%s: v4l2 driver version %s\n",
- dev->name, EM28XX_VERSION);
+ v4l2 = kzalloc(sizeof(struct em28xx_v4l2), GFP_KERNEL);
+ if (v4l2 == NULL) {
+ em28xx_info("em28xx_v4l: memory allocation failed\n");
+ mutex_unlock(&dev->lock);
+ return -ENOMEM;
+ }
+ kref_init(&v4l2->ref);
+ v4l2->dev = dev;
+ dev->v4l2 = v4l2;
+
+ ret = v4l2_device_register(&dev->udev->dev, &v4l2->v4l2_dev);
+ if (ret < 0) {
+ em28xx_errdev("Call to v4l2_device_register() failed!\n");
+ goto err;
+ }
+
+ hdl = &v4l2->ctrl_handler;
+ v4l2_ctrl_handler_init(hdl, 8);
+ v4l2->v4l2_dev.ctrl_handler = hdl;
+
+ if (dev->board.is_webcam)
+ v4l2->progressive = 1;
+
+ /*
+ * Default format, used for tvp5150 or saa711x output formats
+ */
+ v4l2->vinmode = 0x10;
+ v4l2->vinctl = EM28XX_VINCTRL_INTERLACED |
+ EM28XX_VINCTRL_CCIR656_ENABLE;
+
+ /* request some modules */
+
+ if (dev->board.has_msp34xx)
+ v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus],
+ "msp3400", 0, msp3400_addrs);
+
+ if (dev->board.decoder == EM28XX_SAA711X)
+ v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus],
+ "saa7115_auto", 0, saa711x_addrs);
+
+ if (dev->board.decoder == EM28XX_TVP5150)
+ v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus],
+ "tvp5150", 0, tvp5150_addrs);
+
+ if (dev->board.adecoder == EM28XX_TVAUDIO)
+ v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus],
+ "tvaudio", dev->board.tvaudio_addr, NULL);
+
+ /* Initialize tuner and camera */
+
+ if (dev->board.tuner_type != TUNER_ABSENT) {
+ unsigned short tuner_addr = dev->board.tuner_addr;
+ int has_demod = (dev->board.tda9887_conf & TDA9887_PRESENT);
+
+ if (dev->board.radio.type)
+ v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus],
+ "tuner", dev->board.radio_addr, NULL);
+
+ if (has_demod)
+ v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus], "tuner",
+ 0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
+ if (tuner_addr == 0) {
+ enum v4l2_i2c_tuner_type type =
+ has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
+ struct v4l2_subdev *sd;
+
+ sd = v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus], "tuner",
+ 0, v4l2_i2c_tuner_addrs(type));
+
+ if (sd)
+ tuner_addr = v4l2_i2c_subdev_addr(sd);
+ } else {
+ v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
+ &dev->i2c_adap[dev->def_i2c_bus],
+ "tuner", tuner_addr, NULL);
+ }
+
+ em28xx_tuner_setup(dev, tuner_addr);
+ }
+
+ if (dev->em28xx_sensor != EM28XX_NOSENSOR)
+ em28xx_init_camera(dev);
+
+ /* Configure audio */
+ ret = em28xx_audio_setup(dev);
+ if (ret < 0) {
+ em28xx_errdev("%s: Error while setting audio - error [%d]!\n",
+ __func__, ret);
+ goto unregister_dev;
+ }
+ if (dev->audio_mode.ac97 != EM28XX_NO_AC97) {
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
+ V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
+ V4L2_CID_AUDIO_VOLUME, 0, 0x1f, 1, 0x1f);
+ } else {
+ /* install the em28xx notify callback */
+ v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_MUTE),
+ em28xx_ctrl_notify, dev);
+ v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_VOLUME),
+ em28xx_ctrl_notify, dev);
+ }
+
+ /* wake i2c devices */
+ em28xx_wake_i2c(dev);
+
+ /* init video dma queues */
+ INIT_LIST_HEAD(&dev->vidq.active);
+ INIT_LIST_HEAD(&dev->vbiq.active);
+
+ if (dev->board.has_msp34xx) {
+ /* Send a reset to other chips via gpio */
+ ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7);
+ if (ret < 0) {
+ em28xx_errdev("%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n",
+ __func__, ret);
+ goto unregister_dev;
+ }
+ msleep(3);
+
+ ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff);
+ if (ret < 0) {
+ em28xx_errdev("%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n",
+ __func__, ret);
+ goto unregister_dev;
+ }
+ msleep(3);
+ }
/* set default norm */
- dev->norm = V4L2_STD_PAL;
- v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
- dev->interlaced = EM28XX_INTERLACED_DEFAULT;
+ v4l2->norm = V4L2_STD_PAL;
+ v4l2_device_call_all(&v4l2->v4l2_dev, 0, video, s_std, v4l2->norm);
+ v4l2->interlaced_fieldmode = EM28XX_INTERLACED_DEFAULT;
/* Analog specific initialization */
- dev->format = &format[0];
+ v4l2->format = &format[0];
maxw = norm_maxw(dev);
/* MaxPacketSize for em2800 is too small to capture at full resolution
@@ -1853,132 +2467,178 @@ int em28xx_register_analog_devices(struct em28xx *dev)
(EM28XX_XCLK_AUDIO_UNMUTE | val));
em28xx_set_outfmt(dev);
- em28xx_compression_disable(dev);
/* Add image controls */
/* NOTE: at this point, the subdevices are already registered, so bridge
* controls are only added/enabled when no subdevice provides them */
- if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_CONTRAST))
- v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ if (NULL == v4l2_ctrl_find(hdl, V4L2_CID_CONTRAST))
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
V4L2_CID_CONTRAST,
0, 0x1f, 1, CONTRAST_DEFAULT);
- if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BRIGHTNESS))
- v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ if (NULL == v4l2_ctrl_find(hdl, V4L2_CID_BRIGHTNESS))
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
V4L2_CID_BRIGHTNESS,
-0x80, 0x7f, 1, BRIGHTNESS_DEFAULT);
- if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SATURATION))
- v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ if (NULL == v4l2_ctrl_find(hdl, V4L2_CID_SATURATION))
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
V4L2_CID_SATURATION,
0, 0x1f, 1, SATURATION_DEFAULT);
- if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BLUE_BALANCE))
- v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ if (NULL == v4l2_ctrl_find(hdl, V4L2_CID_BLUE_BALANCE))
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
V4L2_CID_BLUE_BALANCE,
-0x30, 0x30, 1, BLUE_BALANCE_DEFAULT);
- if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_RED_BALANCE))
- v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ if (NULL == v4l2_ctrl_find(hdl, V4L2_CID_RED_BALANCE))
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
V4L2_CID_RED_BALANCE,
-0x30, 0x30, 1, RED_BALANCE_DEFAULT);
- if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SHARPNESS))
- v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops,
+ if (NULL == v4l2_ctrl_find(hdl, V4L2_CID_SHARPNESS))
+ v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops,
V4L2_CID_SHARPNESS,
0, 0x0f, 1, SHARPNESS_DEFAULT);
/* Reset image controls */
em28xx_colorlevels_set_default(dev);
- v4l2_ctrl_handler_setup(&dev->ctrl_handler);
- if (dev->ctrl_handler.error)
- return dev->ctrl_handler.error;
+ v4l2_ctrl_handler_setup(hdl);
+ ret = hdl->error;
+ if (ret)
+ goto unregister_dev;
/* allocate and fill video video_device struct */
- dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video");
- if (!dev->vdev) {
+ v4l2->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video");
+ if (!v4l2->vdev) {
em28xx_errdev("cannot allocate video_device.\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto unregister_dev;
}
- dev->vdev->queue = &dev->vb_vidq;
- dev->vdev->queue->lock = &dev->vb_queue_lock;
+ mutex_init(&v4l2->vb_queue_lock);
+ mutex_init(&v4l2->vb_vbi_queue_lock);
+ v4l2->vdev->queue = &v4l2->vb_vidq;
+ v4l2->vdev->queue->lock = &v4l2->vb_queue_lock;
/* disable inapplicable ioctls */
if (dev->board.is_webcam) {
- v4l2_disable_ioctl(dev->vdev, VIDIOC_QUERYSTD);
- v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD);
- v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_QUERYSTD);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_G_STD);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_S_STD);
} else {
- v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_S_PARM);
}
if (dev->tuner_type == TUNER_ABSENT) {
- v4l2_disable_ioctl(dev->vdev, VIDIOC_G_TUNER);
- v4l2_disable_ioctl(dev->vdev, VIDIOC_S_TUNER);
- v4l2_disable_ioctl(dev->vdev, VIDIOC_G_FREQUENCY);
- v4l2_disable_ioctl(dev->vdev, VIDIOC_S_FREQUENCY);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_G_TUNER);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_S_TUNER);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_G_FREQUENCY);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_S_FREQUENCY);
}
if (!dev->audio_mode.has_audio) {
- v4l2_disable_ioctl(dev->vdev, VIDIOC_G_AUDIO);
- v4l2_disable_ioctl(dev->vdev, VIDIOC_S_AUDIO);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_G_AUDIO);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_S_AUDIO);
}
/* register v4l2 video video_device */
- ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
+ ret = video_register_device(v4l2->vdev, VFL_TYPE_GRABBER,
video_nr[dev->devno]);
if (ret) {
em28xx_errdev("unable to register video device (error=%i).\n",
ret);
- return ret;
+ goto unregister_dev;
}
/* Allocate and fill vbi video_device struct */
if (em28xx_vbi_supported(dev) == 1) {
- dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template,
+ v4l2->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template,
"vbi");
- dev->vbi_dev->queue = &dev->vb_vbiq;
- dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock;
+ v4l2->vbi_dev->queue = &v4l2->vb_vbiq;
+ v4l2->vbi_dev->queue->lock = &v4l2->vb_vbi_queue_lock;
/* disable inapplicable ioctls */
- v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM);
+ v4l2_disable_ioctl(v4l2->vdev, VIDIOC_S_PARM);
if (dev->tuner_type == TUNER_ABSENT) {
- v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_TUNER);
- v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_TUNER);
- v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_FREQUENCY);
- v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_FREQUENCY);
+ v4l2_disable_ioctl(v4l2->vbi_dev, VIDIOC_G_TUNER);
+ v4l2_disable_ioctl(v4l2->vbi_dev, VIDIOC_S_TUNER);
+ v4l2_disable_ioctl(v4l2->vbi_dev, VIDIOC_G_FREQUENCY);
+ v4l2_disable_ioctl(v4l2->vbi_dev, VIDIOC_S_FREQUENCY);
}
if (!dev->audio_mode.has_audio) {
- v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_AUDIO);
- v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_AUDIO);
+ v4l2_disable_ioctl(v4l2->vbi_dev, VIDIOC_G_AUDIO);
+ v4l2_disable_ioctl(v4l2->vbi_dev, VIDIOC_S_AUDIO);
}
/* register v4l2 vbi video_device */
- ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
+ ret = video_register_device(v4l2->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->devno]);
if (ret < 0) {
em28xx_errdev("unable to register vbi device\n");
- return ret;
+ goto unregister_dev;
}
}
if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) {
- dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template,
- "radio");
- if (!dev->radio_dev) {
+ v4l2->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template,
+ "radio");
+ if (!v4l2->radio_dev) {
em28xx_errdev("cannot allocate video_device.\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto unregister_dev;
}
- ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
+ ret = video_register_device(v4l2->radio_dev, VFL_TYPE_RADIO,
radio_nr[dev->devno]);
if (ret < 0) {
em28xx_errdev("can't register radio device\n");
- return ret;
+ goto unregister_dev;
}
em28xx_info("Registered radio device as %s\n",
- video_device_node_name(dev->radio_dev));
+ video_device_node_name(v4l2->radio_dev));
}
em28xx_info("V4L2 video device registered as %s\n",
- video_device_node_name(dev->vdev));
+ video_device_node_name(v4l2->vdev));
- if (dev->vbi_dev)
+ if (v4l2->vbi_dev)
em28xx_info("V4L2 VBI device registered as %s\n",
- video_device_node_name(dev->vbi_dev));
+ video_device_node_name(v4l2->vbi_dev));
+
+ /* Save some power by putting tuner to sleep */
+ v4l2_device_call_all(&v4l2->v4l2_dev, 0, core, s_power, 0);
+ /* initialize videobuf2 stuff */
+ em28xx_vb2_setup(dev);
+
+ em28xx_info("V4L2 extension successfully initialized\n");
+
+ kref_get(&dev->ref);
+
+ mutex_unlock(&dev->lock);
return 0;
+
+unregister_dev:
+ v4l2_ctrl_handler_free(&v4l2->ctrl_handler);
+ v4l2_device_unregister(&v4l2->v4l2_dev);
+err:
+ dev->v4l2 = NULL;
+ kref_put(&v4l2->ref, em28xx_free_v4l2);
+ mutex_unlock(&dev->lock);
+ return ret;
}
+
+static struct em28xx_ops v4l2_ops = {
+ .id = EM28XX_V4L2,
+ .name = "Em28xx v4l2 Extension",
+ .init = em28xx_v4l2_init,
+ .fini = em28xx_v4l2_fini,
+ .suspend = em28xx_v4l2_suspend,
+ .resume = em28xx_v4l2_resume,
+};
+
+static int __init em28xx_video_register(void)
+{
+ return em28xx_register_extension(&v4l2_ops);
+}
+
+static void __exit em28xx_video_unregister(void)
+{
+ em28xx_unregister_extension(&v4l2_ops);
+}
+
+module_init(em28xx_video_register);
+module_exit(em28xx_video_unregister);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 18:20:05 +0000