--- /dev/null
+/*
+ cx231xx-video.c - driver for Conexant Cx23100/101/102
+ USB video capture devices
+
+ Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+ Based on em28xx driver
+ Based on cx23885 driver
+ Based on cx88 driver
+
+ 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/bitmap.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/version.h>
+#include <linux/mm.h>
+#include <linux/mutex.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/msp3400.h>
+#include <media/tuner.h>
+
+#include "dvb_frontend.h"
+
+#include "cx231xx.h"
+#include "cx231xx-vbi.h"
+
+#define CX231XX_VERSION_CODE KERNEL_VERSION(0, 0, 1)
+
+#define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>"
+#define DRIVER_DESC "Conexant cx231xx based USB video device driver"
+
+#define cx231xx_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 cx231xx_isocdbg(fmt, arg...) \
+do {\
+ if (isoc_debug) { \
+ printk(KERN_INFO "%s %s :"fmt, \
+ dev->name, __func__ , ##arg); \
+ } \
+ } while (0)
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
+static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
+static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
+static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET };
+
+module_param_array(card, int, NULL, 0444);
+module_param_array(video_nr, int, NULL, 0444);
+module_param_array(vbi_nr, int, NULL, 0444);
+module_param_array(radio_nr, int, NULL, 0444);
+
+MODULE_PARM_DESC(card, "card type");
+MODULE_PARM_DESC(video_nr, "video device numbers");
+MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
+MODULE_PARM_DESC(radio_nr, "radio device numbers");
+
+static unsigned int video_debug;
+module_param(video_debug, int, 0644);
+MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
+
+/* supported video standards */
+static struct cx231xx_fmt format[] = {
+ {
+ .name = "16bpp YUY2, 4:2:2, packed",
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .depth = 16,
+ .reg = 0,
+ },
+};
+
+/* supported controls */
+/* Common to all boards */
+
+/* ------------------------------------------------------------------- */
+
+static const struct v4l2_queryctrl no_ctl = {
+ .name = "42",
+ .flags = V4L2_CTRL_FLAG_DISABLED,
+};
+
+static struct cx231xx_ctrl cx231xx_ctls[] = {
+ /* --- video --- */
+ {
+ .v = {
+ .id = V4L2_CID_BRIGHTNESS,
+ .name = "Brightness",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x7f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 128,
+ .reg = LUMA_CTRL,
+ .mask = 0x00ff,
+ .shift = 0,
+ }, {
+ .v = {
+ .id = V4L2_CID_CONTRAST,
+ .name = "Contrast",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x3f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 0,
+ .reg = LUMA_CTRL,
+ .mask = 0xff00,
+ .shift = 8,
+ }, {
+ .v = {
+ .id = V4L2_CID_HUE,
+ .name = "Hue",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x7f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 128,
+ .reg = CHROMA_CTRL,
+ .mask = 0xff0000,
+ .shift = 16,
+ }, {
+ /* strictly, this only describes only U saturation.
+ * V saturation is handled specially through code.
+ */
+ .v = {
+ .id = V4L2_CID_SATURATION,
+ .name = "Saturation",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x7f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 0,
+ .reg = CHROMA_CTRL,
+ .mask = 0x00ff,
+ .shift = 0,
+ }, {
+ /* --- audio --- */
+ .v = {
+ .id = V4L2_CID_AUDIO_MUTE,
+ .name = "Mute",
+ .minimum = 0,
+ .maximum = 1,
+ .default_value = 1,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ },
+ .reg = PATH1_CTL1,
+ .mask = (0x1f << 24),
+ .shift = 24,
+ }, {
+ .v = {
+ .id = V4L2_CID_AUDIO_VOLUME,
+ .name = "Volume",
+ .minimum = 0,
+ .maximum = 0x3f,
+ .step = 1,
+ .default_value = 0x3f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .reg = PATH1_VOL_CTL,
+ .mask = 0xff,
+ .shift = 0,
+ }
+};
+static const int CX231XX_CTLS = ARRAY_SIZE(cx231xx_ctls);
+
+static const u32 cx231xx_user_ctrls[] = {
+ V4L2_CID_USER_CLASS,
+ V4L2_CID_BRIGHTNESS,
+ V4L2_CID_CONTRAST,
+ V4L2_CID_SATURATION,
+ V4L2_CID_HUE,
+ V4L2_CID_AUDIO_VOLUME,
+#if 0
+ V4L2_CID_AUDIO_BALANCE,
+#endif
+ V4L2_CID_AUDIO_MUTE,
+ 0
+};
+
+static const u32 *ctrl_classes[] = {
+ cx231xx_user_ctrls,
+ NULL
+};
+
+/* ------------------------------------------------------------------
+ Video buffer and parser functions
+ ------------------------------------------------------------------*/
+
+/*
+ * Announces that a buffer were filled and request the next
+ */
+static inline void buffer_filled(struct cx231xx *dev,
+ struct cx231xx_dmaqueue *dma_q,
+ struct cx231xx_buffer *buf)
+{
+ /* Advice that buffer was filled */
+ cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
+ buf->vb.state = VIDEOBUF_DONE;
+ buf->vb.field_count++;
+ do_gettimeofday(&buf->vb.ts);
+
+ dev->video_mode.isoc_ctl.buf = NULL;
+
+ list_del(&buf->vb.queue);
+ wake_up(&buf->vb.done);
+}
+
+static inline void print_err_status(struct cx231xx *dev, int packet, int status)
+{
+ char *errmsg = "Unknown";
+
+ switch (status) {
+ case -ENOENT:
+ errmsg = "unlinked synchronuously";
+ break;
+ case -ECONNRESET:
+ errmsg = "unlinked asynchronuously";
+ break;
+ case -ENOSR:
+ errmsg = "Buffer error (overrun)";
+ break;
+ case -EPIPE:
+ errmsg = "Stalled (device not responding)";
+ break;
+ case -EOVERFLOW:
+ errmsg = "Babble (bad cable?)";
+ break;
+ case -EPROTO:
+ errmsg = "Bit-stuff error (bad cable?)";
+ break;
+ case -EILSEQ:
+ errmsg = "CRC/Timeout (could be anything)";
+ break;
+ case -ETIME:
+ errmsg = "Device does not respond";
+ break;
+ }
+ if (packet < 0) {
+ cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg);
+ } else {
+ cx231xx_isocdbg("URB packet %d, status %d [%s].\n",
+ packet, status, errmsg);
+ }
+}
+
+/*
+ * video-buf generic routine to get the next available buffer
+ */
+static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,
+ struct cx231xx_buffer **buf)
+{
+ struct cx231xx_video_mode *vmode =
+ container_of(dma_q, struct cx231xx_video_mode, vidq);
+ struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
+
+ char *outp;
+
+ if (list_empty(&dma_q->active)) {
+ cx231xx_isocdbg("No active queue to serve\n");
+ dev->video_mode.isoc_ctl.buf = NULL;
+ *buf = NULL;
+ return;
+ }
+
+ /* Get the next buffer */
+ *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
+
+ /* Cleans up buffer - Usefull for testing for frame/URB loss */
+ outp = videobuf_to_vmalloc(&(*buf)->vb);
+ memset(outp, 0, (*buf)->vb.size);
+
+ dev->video_mode.isoc_ctl.buf = *buf;
+
+ return;
+}
+
+/*
+ * Controls the isoc copy of each urb packet
+ */
+static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb)
+{
+ struct cx231xx_buffer *buf;
+ struct cx231xx_dmaqueue *dma_q = urb->context;
+ unsigned char *outp = NULL;
+ int i, rc = 1;
+ unsigned char *p_buffer;
+ u32 bytes_parsed = 0, buffer_size = 0;
+ u8 sav_eav = 0;
+
+ if (!dev)
+ return 0;
+
+ if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
+ return 0;
+
+ if (urb->status < 0) {
+ print_err_status(dev, -1, urb->status);
+ if (urb->status == -ENOENT)
+ return 0;
+ }
+
+ buf = dev->video_mode.isoc_ctl.buf;
+ if (buf != NULL)
+ outp = videobuf_to_vmalloc(&buf->vb);
+
+ for (i = 0; i < urb->number_of_packets; i++) {
+ int status = urb->iso_frame_desc[i].status;
+
+ if (status < 0) {
+ print_err_status(dev, i, status);
+ if (urb->iso_frame_desc[i].status != -EPROTO)
+ continue;
+ }
+
+ if (urb->iso_frame_desc[i].actual_length <= 0) {
+ /* cx231xx_isocdbg("packet %d is empty",i); - spammy */
+ continue;
+ }
+ if (urb->iso_frame_desc[i].actual_length >
+ dev->video_mode.max_pkt_size) {
+ cx231xx_isocdbg("packet bigger than packet size");
+ continue;
+ }
+
+ /* get buffer pointer and length */
+ p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+ buffer_size = urb->iso_frame_desc[i].actual_length;
+ bytes_parsed = 0;
+
+ if (dma_q->is_partial_line) {
+ /* Handle the case of a partial line */
+ sav_eav = dma_q->last_sav;
+ } else {
+ /* Check for a SAV/EAV overlapping
+ the buffer boundary */
+ sav_eav =
+ cx231xx_find_boundary_SAV_EAV(p_buffer,
+ dma_q->partial_buf,
+ &bytes_parsed);
+ }
+
+ sav_eav &= 0xF0;
+ /* Get the first line if we have some portion of an SAV/EAV from
+ the last buffer or a partial line */
+ if (sav_eav) {
+ bytes_parsed += cx231xx_get_video_line(dev, dma_q,
+ sav_eav, /* SAV/EAV */
+ p_buffer + bytes_parsed, /* p_buffer */
+ buffer_size - bytes_parsed);/* buf size */
+ }
+
+ /* Now parse data that is completely in this buffer */
+ /* dma_q->is_partial_line = 0; */
+
+ while (bytes_parsed < buffer_size) {
+ u32 bytes_used = 0;
+
+ sav_eav = cx231xx_find_next_SAV_EAV(
+ p_buffer + bytes_parsed, /* p_buffer */
+ buffer_size - bytes_parsed, /* buf size */
+ &bytes_used);/* bytes used to get SAV/EAV */
+
+ bytes_parsed += bytes_used;
+
+ sav_eav &= 0xF0;
+ if (sav_eav && (bytes_parsed < buffer_size)) {
+ bytes_parsed += cx231xx_get_video_line(dev,
+ dma_q, sav_eav, /* SAV/EAV */
+ p_buffer + bytes_parsed,/* p_buffer */
+ buffer_size - bytes_parsed);/*buf size*/
+ }
+ }
+
+ /* Save the last four bytes of the buffer so we can check the
+ buffer boundary condition next time */
+ memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
+ bytes_parsed = 0;
+
+ }
+ return rc;
+}
+
+u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
+ u32 *p_bytes_used)
+{
+ u32 bytes_used;
+ u8 boundary_bytes[8];
+ u8 sav_eav = 0;
+
+ *p_bytes_used = 0;
+
+ /* Create an array of the last 4 bytes of the last buffer and the first
+ 4 bytes of the current buffer. */
+
+ memcpy(boundary_bytes, partial_buf, 4);
+ memcpy(boundary_bytes + 4, p_buffer, 4);
+
+ /* Check for the SAV/EAV in the boundary buffer */
+ sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8,
+ &bytes_used);
+
+ if (sav_eav) {
+ /* found a boundary SAV/EAV. Updates the bytes used to reflect
+ only those used in the new buffer */
+ *p_bytes_used = bytes_used - 4;
+ }
+
+ return sav_eav;
+}
+
+u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used)
+{
+ u32 i;
+ u8 sav_eav = 0;
+
+ /*
+ * Don't search if the buffer size is less than 4. It causes a page
+ * fault since buffer_size - 4 evaluates to a large number in that
+ * case.
+ */
+ if (buffer_size < 4) {
+ *p_bytes_used = buffer_size;
+ return 0;
+ }
+
+ for (i = 0; i < (buffer_size - 3); i++) {
+
+ if ((p_buffer[i] == 0xFF) &&
+ (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) {
+
+ *p_bytes_used = i + 4;
+ sav_eav = p_buffer[i + 3];
+ return sav_eav;
+ }
+ }
+
+ *p_bytes_used = buffer_size;
+ return 0;
+}
+
+u32 cx231xx_get_video_line(struct cx231xx *dev,
+ struct cx231xx_dmaqueue *dma_q, u8 sav_eav,
+ u8 *p_buffer, u32 buffer_size)
+{
+ u32 bytes_copied = 0;
+ int current_field = -1;
+
+ switch (sav_eav) {
+ case SAV_ACTIVE_VIDEO_FIELD1:
+ /* looking for skipped line which occurred in PAL 720x480 mode.
+ In this case, there will be no active data contained
+ between the SAV and EAV */
+ if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
+ (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
+ ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
+ (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
+ (p_buffer[3] == EAV_VBLANK_FIELD1) ||
+ (p_buffer[3] == EAV_VBLANK_FIELD2)))
+ return bytes_copied;
+ current_field = 1;
+ break;
+
+ case SAV_ACTIVE_VIDEO_FIELD2:
+ /* looking for skipped line which occurred in PAL 720x480 mode.
+ In this case, there will be no active data contained between
+ the SAV and EAV */
+ if ((buffer_size > 3) && (p_buffer[0] == 0xFF) &&
+ (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) &&
+ ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) ||
+ (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) ||
+ (p_buffer[3] == EAV_VBLANK_FIELD1) ||
+ (p_buffer[3] == EAV_VBLANK_FIELD2)))
+ return bytes_copied;
+ current_field = 2;
+ break;
+ }
+
+ dma_q->last_sav = sav_eav;
+
+ bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,
+ buffer_size, current_field);
+
+ return bytes_copied;
+}
+
+u32 cx231xx_copy_video_line(struct cx231xx *dev,
+ struct cx231xx_dmaqueue *dma_q, u8 *p_line,
+ u32 length, int field_number)
+{
+ u32 bytes_to_copy;
+ struct cx231xx_buffer *buf;
+ u32 _line_size = dev->width * 2;
+
+ if (dma_q->current_field != field_number)
+ cx231xx_reset_video_buffer(dev, dma_q);
+
+ /* get the buffer pointer */
+ buf = dev->video_mode.isoc_ctl.buf;
+
+ /* Remember the field number for next time */
+ dma_q->current_field = field_number;
+
+ bytes_to_copy = dma_q->bytes_left_in_line;
+ if (bytes_to_copy > length)
+ bytes_to_copy = length;
+
+ if (dma_q->lines_completed >= dma_q->lines_per_field) {
+ dma_q->bytes_left_in_line -= bytes_to_copy;
+ dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?
+ 0 : 1;
+ return 0;
+ }
+
+ dma_q->is_partial_line = 1;
+
+ /* If we don't have a buffer, just return the number of bytes we would
+ have copied if we had a buffer. */
+ if (!buf) {
+ dma_q->bytes_left_in_line -= bytes_to_copy;
+ dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)
+ ? 0 : 1;
+ return bytes_to_copy;
+ }
+
+ /* copy the data to video buffer */
+ cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);
+
+ dma_q->pos += bytes_to_copy;
+ dma_q->bytes_left_in_line -= bytes_to_copy;
+
+ if (dma_q->bytes_left_in_line == 0) {
+ dma_q->bytes_left_in_line = _line_size;
+ dma_q->lines_completed++;
+ dma_q->is_partial_line = 0;
+
+ if (cx231xx_is_buffer_done(dev, dma_q) && buf) {
+ buffer_filled(dev, dma_q, buf);
+
+ dma_q->pos = 0;
+ buf = NULL;
+ dma_q->lines_completed = 0;
+ }
+ }
+
+ return bytes_to_copy;
+}
+
+void cx231xx_reset_video_buffer(struct cx231xx *dev,
+ struct cx231xx_dmaqueue *dma_q)
+{
+ struct cx231xx_buffer *buf;
+
+ /* handle the switch from field 1 to field 2 */
+ if (dma_q->current_field == 1) {
+ if (dma_q->lines_completed >= dma_q->lines_per_field)
+ dma_q->field1_done = 1;
+ else
+ dma_q->field1_done = 0;
+ }
+
+ buf = dev->video_mode.isoc_ctl.buf;
+
+ if (buf == NULL) {
+ u8 *outp = NULL;
+ /* first try to get the buffer */
+ get_next_buf(dma_q, &buf);
+
+ if (buf)
+ outp = videobuf_to_vmalloc(&buf->vb);
+
+ dma_q->pos = 0;
+ dma_q->field1_done = 0;
+ dma_q->current_field = -1;
+ }
+
+ /* reset the counters */
+ dma_q->bytes_left_in_line = dev->width << 1;
+ dma_q->lines_completed = 0;
+}
+
+int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+ u8 *p_buffer, u32 bytes_to_copy)
+{
+ u8 *p_out_buffer = NULL;
+ u32 current_line_bytes_copied = 0;
+ struct cx231xx_buffer *buf;
+ u32 _line_size = dev->width << 1;
+ void *startwrite;
+ int offset, lencopy;
+
+ buf = dev->video_mode.isoc_ctl.buf;
+
+ if (buf == NULL)
+ return -1;
+
+ p_out_buffer = videobuf_to_vmalloc(&buf->vb);
+
+ current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;
+
+ /* Offset field 2 one line from the top of the buffer */
+ offset = (dma_q->current_field == 1) ? 0 : _line_size;
+
+ /* Offset for field 2 */
+ startwrite = p_out_buffer + offset;
+
+ /* lines already completed in the current field */
+ startwrite += (dma_q->lines_completed * _line_size * 2);
+
+ /* bytes already completed in the current line */
+ startwrite += current_line_bytes_copied;
+
+ lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
+ bytes_to_copy : dma_q->bytes_left_in_line;
+
+ if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size))
+ return 0;
+
+ /* The below copies the UYVY data straight into video buffer */
+ cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy);
+
+ return 0;
+}
+
+void cx231xx_swab(u16 *from, u16 *to, u16 len)
+{
+ u16 i;
+
+ if (len <= 0)
+ return;
+
+ for (i = 0; i < len / 2; i++)
+ to[i] = (from[i] << 8) | (from[i] >> 8);
+}
+
+u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)
+{
+ u8 buffer_complete = 0;
+
+ /* Dual field stream */
+ buffer_complete = ((dma_q->current_field == 2) &&
+ (dma_q->lines_completed >= dma_q->lines_per_field) &&
+ dma_q->field1_done);
+
+ return buffer_complete;
+}
+
+/* ------------------------------------------------------------------
+ Videobuf operations
+ ------------------------------------------------------------------*/
+
+static int
+buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
+{
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx *dev = fh->dev;
+ struct v4l2_frequency f;
+
+ *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3;
+ if (0 == *count)
+ *count = CX231XX_DEF_BUF;
+
+ if (*count < CX231XX_MIN_BUF)
+ *count = CX231XX_MIN_BUF;
+
+ /* Ask tuner to go to analog mode */
+ memset(&f, 0, sizeof(f));
+ f.frequency = dev->ctl_freq;
+ f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+
+ call_all(dev, tuner, s_frequency, &f);
+
+ return 0;
+}
+
+/* This is called *without* dev->slock held; please keep it that way */
+static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
+{
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx *dev = fh->dev;
+ unsigned long flags = 0;
+
+ if (in_interrupt())
+ BUG();
+
+ /* We used to wait for the buffer to finish here, but this didn't work
+ because, as we were keeping the state as VIDEOBUF_QUEUED,
+ videobuf_queue_cancel marked it as finished for us.
+ (Also, it could wedge forever if the hardware was misconfigured.)
+
+ This should be safe; by the time we get here, the buffer isn't
+ queued anymore. If we ever start marking the buffers as
+ VIDEOBUF_ACTIVE, it won't be, though.
+ */
+ spin_lock_irqsave(&dev->video_mode.slock, flags);
+ if (dev->video_mode.isoc_ctl.buf == buf)
+ dev->video_mode.isoc_ctl.buf = NULL;
+ spin_unlock_irqrestore(&dev->video_mode.slock, flags);
+
+ videobuf_vmalloc_free(&buf->vb);
+ buf->vb.state = VIDEOBUF_NEEDS_INIT;
+}
+
+static int
+buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
+ enum v4l2_field field)
+{
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx_buffer *buf =
+ container_of(vb, struct cx231xx_buffer, vb);
+ struct cx231xx *dev = fh->dev;
+ int rc = 0, urb_init = 0;
+
+ /* The only currently supported format is 16 bits/pixel */
+ buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
+ + 7) >> 3;
+ if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+ return -EINVAL;
+
+ buf->vb.width = dev->width;
+ buf->vb.height = dev->height;
+ buf->vb.field = field;
+
+ if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+ rc = videobuf_iolock(vq, &buf->vb, NULL);
+ if (rc < 0)
+ goto fail;
+ }
+
+ if (!dev->video_mode.isoc_ctl.num_bufs)
+ urb_init = 1;
+
+ if (urb_init) {
+ rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS,
+ CX231XX_NUM_BUFS,
+ dev->video_mode.max_pkt_size,
+ cx231xx_isoc_copy);
+ if (rc < 0)
+ goto fail;
+ }
+
+ buf->vb.state = VIDEOBUF_PREPARED;
+ return 0;
+
+fail:
+ free_buffer(vq, buf);
+ return rc;
+}
+
+static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+{
+ struct cx231xx_buffer *buf =
+ container_of(vb, struct cx231xx_buffer, vb);
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx *dev = fh->dev;
+ struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq;
+
+ buf->vb.state = VIDEOBUF_QUEUED;
+ list_add_tail(&buf->vb.queue, &vidq->active);
+
+}
+
+static void buffer_release(struct videobuf_queue *vq,
+ struct videobuf_buffer *vb)
+{
+ struct cx231xx_buffer *buf =
+ container_of(vb, struct cx231xx_buffer, vb);
+ struct cx231xx_fh *fh = vq->priv_data;
+ struct cx231xx *dev = (struct cx231xx *)fh->dev;
+
+ cx231xx_isocdbg("cx231xx: called buffer_release\n");
+
+ free_buffer(vq, buf);
+}
+
+static struct videobuf_queue_ops cx231xx_video_qops = {
+ .buf_setup = buffer_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_queue = buffer_queue,
+ .buf_release = buffer_release,
+};
+
+/********************* v4l2 interface **************************************/
+
+void video_mux(struct cx231xx *dev, int index)
+{
+ dev->video_input = index;
+ dev->ctl_ainput = INPUT(index)->amux;
+
+ cx231xx_set_video_input_mux(dev, index);
+
+ cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0);
+
+ cx231xx_set_audio_input(dev, dev->ctl_ainput);
+
+ cx231xx_info("video_mux : %d\n", index);
+
+ /* do mode control overrides if required */
+ cx231xx_do_mode_ctrl_overrides(dev);
+}
+
+/* Usage lock check functions */
+static int res_get(struct cx231xx_fh *fh)
+{
+ struct cx231xx *dev = fh->dev;
+ int rc = 0;
+
+ /* This instance already has stream_on */
+ if (fh->stream_on)
+ return rc;
+
+ if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ if (dev->stream_on)
+ return -EBUSY;
+ dev->stream_on = 1;
+ } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+ if (dev->vbi_stream_on)
+ return -EBUSY;
+ dev->vbi_stream_on = 1;
+ } else
+ return -EINVAL;
+
+ fh->stream_on = 1;
+
+ return rc;
+}
+
+static int res_check(struct cx231xx_fh *fh)
+{
+ return fh->stream_on;
+}
+
+static void res_free(struct cx231xx_fh *fh)
+{
+ struct cx231xx *dev = fh->dev;
+
+ fh->stream_on = 0;
+
+ if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ dev->stream_on = 0;
+ if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ dev->vbi_stream_on = 0;
+}
+
+static int check_dev(struct cx231xx *dev)
+{
+ if (dev->state & DEV_DISCONNECTED) {
+ cx231xx_errdev("v4l2 ioctl: device not present\n");
+ return -ENODEV;
+ }
+
+ if (dev->state & DEV_MISCONFIGURED) {
+ cx231xx_errdev("v4l2 ioctl: device is misconfigured; "
+ "close and open it again\n");
+ return -EIO;
+ }
+ return 0;
+}
+
+void get_scale(struct cx231xx *dev,
+ unsigned int width, unsigned int height,
+ unsigned int *hscale, unsigned int *vscale)
+{
+ unsigned int maxw = norm_maxw(dev);
+ unsigned int maxh = norm_maxh(dev);
+
+ *hscale = (((unsigned long)maxw) << 12) / width - 4096L;
+ if (*hscale >= 0x4000)
+ *hscale = 0x3fff;
+
+ *vscale = (((unsigned long)maxh) << 12) / height - 4096L;
+ if (*vscale >= 0x4000)
+ *vscale = 0x3fff;
+
+ dev->hscale = *hscale;
+ dev->vscale = *vscale;
+
+}
+
+/* ------------------------------------------------------------------
+ IOCTL vidioc handling
+ ------------------------------------------------------------------*/
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ mutex_lock(&dev->lock);
+
+ 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.colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+ f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(format); i++)
+ if (format[i].fourcc == fourcc)
+ return &format[i];
+
+ return NULL;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int width = f->fmt.pix.width;
+ int height = f->fmt.pix.height;
+ unsigned int maxw = norm_maxw(dev);
+ unsigned int maxh = norm_maxh(dev);
+ unsigned int hscale, vscale;
+ struct cx231xx_fmt *fmt;
+
+ fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ if (!fmt) {
+ cx231xx_videodbg("Fourcc format (%08x) invalid.\n",
+ f->fmt.pix.pixelformat);
+ return -EINVAL;
+ }
+
+ /* width must even because of the YUYV format
+ height must be even because of interlacing */
+ height &= 0xfffe;
+ width &= 0xfffe;
+
+ if (unlikely(height < 32))
+ height = 32;
+ if (unlikely(height > maxh))
+ height = maxh;
+ if (unlikely(width < 48))
+ width = 48;
+ if (unlikely(width > maxw))
+ width = maxw;
+
+ get_scale(dev, width, height, &hscale, &vscale);
+
+ width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
+ height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
+
+ f->fmt.pix.width = width;
+ f->fmt.pix.height = height;
+ f->fmt.pix.pixelformat = fmt->fourcc;
+ f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
+ f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+
+ return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+ struct cx231xx_fmt *fmt;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+
+ vidioc_try_fmt_vid_cap(file, priv, f);
+
+ fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ if (!fmt) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (videobuf_queue_is_busy(&fh->vb_vidq)) {
+ cx231xx_errdev("%s queue busy\n", __func__);
+ rc = -EBUSY;
+ goto out;
+ }
+
+ if (dev->stream_on && !fh->stream_on) {
+ cx231xx_errdev("%s device in use by another fh\n", __func__);
+ rc = -EBUSY;
+ goto out;
+ }
+
+ /* set new image size */
+ dev->width = f->fmt.pix.width;
+ dev->height = f->fmt.pix.height;
+ dev->format = fmt;
+ get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
+
+ call_all(dev, video, s_fmt, f);
+
+ /* Set the correct alternate setting for this resolution */
+ cx231xx_resolution_set(dev);
+
+out:
+ mutex_unlock(&dev->lock);
+ return rc;
+}
+
+static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id * id)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ *id = dev->norm;
+ return 0;
+}
+
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ struct v4l2_format f;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ cx231xx_info("vidioc_s_std : 0x%x\n", (unsigned int)*norm);
+
+ mutex_lock(&dev->lock);
+ dev->norm = *norm;
+
+ /* Adjusts width/height, if needed */
+ f.fmt.pix.width = dev->width;
+ f.fmt.pix.height = dev->height;
+ vidioc_try_fmt_vid_cap(file, priv, &f);
+
+ /* set new image size */
+ dev->width = f.fmt.pix.width;
+ dev->height = f.fmt.pix.height;
+ get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
+
+ call_all(dev, core, s_std, dev->norm);
+
+ mutex_unlock(&dev->lock);
+
+ cx231xx_resolution_set(dev);
+
+ /* do mode control overrides */
+ cx231xx_do_mode_ctrl_overrides(dev);
+
+ return 0;
+}
+
+static const char *iname[] = {
+ [CX231XX_VMUX_COMPOSITE1] = "Composite1",
+ [CX231XX_VMUX_SVIDEO] = "S-Video",
+ [CX231XX_VMUX_TELEVISION] = "Television",
+ [CX231XX_VMUX_CABLE] = "Cable TV",
+ [CX231XX_VMUX_DVB] = "DVB",
+ [CX231XX_VMUX_DEBUG] = "for debug only",
+};
+
+static int vidioc_enum_input(struct file *file, void *priv,
+ struct v4l2_input *i)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ unsigned int n;
+
+ n = i->index;
+ if (n >= MAX_CX231XX_INPUT)
+ return -EINVAL;
+ if (0 == INPUT(n)->type)
+ return -EINVAL;
+
+ i->index = n;
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+
+ strcpy(i->name, iname[INPUT(n)->type]);
+
+ if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) ||
+ (CX231XX_VMUX_CABLE == INPUT(n)->type))
+ i->type = V4L2_INPUT_TYPE_TUNER;
+
+ i->std = dev->vdev->tvnorms;
+
+ return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ *i = dev->video_input;
+
+ return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if (i >= MAX_CX231XX_INPUT)
+ return -EINVAL;
+ if (0 == INPUT(i)->type)
+ return -EINVAL;
+
+ mutex_lock(&dev->lock);
+
+ video_mux(dev, i);
+
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ switch (a->index) {
+ case CX231XX_AMUX_VIDEO:
+ strcpy(a->name, "Television");
+ break;
+ case CX231XX_AMUX_LINE_IN:
+ strcpy(a->name, "Line In");
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ a->index = dev->ctl_ainput;
+ a->capability = V4L2_AUDCAP_STEREO;
+
+ return 0;
+}
+
+static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int status = 0;
+
+ /* Doesn't allow manual routing */
+ if (a->index != dev->ctl_ainput)
+ return -EINVAL;
+
+ dev->ctl_ainput = INPUT(a->index)->amux;
+ status = cx231xx_set_audio_input(dev, dev->ctl_ainput);
+
+ return status;
+}
+
+static int vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int id = qc->id;
+ int i;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
+ if (unlikely(qc->id == 0))
+ return -EINVAL;
+
+ memset(qc, 0, sizeof(*qc));
+
+ qc->id = id;
+
+ if (qc->id < V4L2_CID_BASE || qc->id >= V4L2_CID_LASTP1)
+ return -EINVAL;
+
+ for (i = 0; i < CX231XX_CTLS; i++)
+ if (cx231xx_ctls[i].v.id == qc->id)
+ break;
+
+ if (i == CX231XX_CTLS) {
+ *qc = no_ctl;
+ return 0;
+ }
+ *qc = cx231xx_ctls[i].v;
+
+ mutex_lock(&dev->lock);
+ call_all(dev, core, queryctrl, qc);
+ mutex_unlock(&dev->lock);
+
+ if (qc->type)
+ return 0;
+ else
+ return -EINVAL;
+}
+
+static int vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+ call_all(dev, core, g_ctrl, ctrl);
+ mutex_unlock(&dev->lock);
+ return rc;
+}
+
+static int vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+ call_all(dev, core, s_ctrl, ctrl);
+ mutex_unlock(&dev->lock);
+ return rc;
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if (0 != t->index)
+ return -EINVAL;
+
+ strcpy(t->name, "Tuner");
+
+ t->type = V4L2_TUNER_ANALOG_TV;
+ t->capability = V4L2_TUNER_CAP_NORM;
+ t->rangehigh = 0xffffffffUL;
+ t->signal = 0xffff; /* LOCKED */
+
+ return 0;
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if (0 != t->index)
+ return -EINVAL;
+#if 0
+ mutex_lock(&dev->lock);
+ call_all(dev, tuner, s_tuner, t);
+ mutex_unlock(&dev->lock);
+#endif
+ return 0;
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ mutex_lock(&dev->lock);
+ f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ f->frequency = dev->ctl_freq;
+
+ call_all(dev, tuner, g_frequency, f);
+
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if (0 != f->tuner)
+ return -EINVAL;
+
+ if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
+ return -EINVAL;
+ if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
+ return -EINVAL;
+
+ /* set pre channel change settings in DIF first */
+ rc = cx231xx_tuner_pre_channel_change(dev);
+
+ mutex_lock(&dev->lock);
+
+ dev->ctl_freq = f->frequency;
+
+ if (dev->tuner_type == TUNER_XC5000) {
+ if (dev->cx231xx_set_analog_freq != NULL)
+ dev->cx231xx_set_analog_freq(dev, f->frequency);
+ } else
+ call_all(dev, tuner, s_frequency, f);
+
+ mutex_unlock(&dev->lock);
+
+ /* set post channel change settings in DIF first */
+ rc = cx231xx_tuner_post_channel_change(dev);
+
+ cx231xx_info("Set New FREQUENCY to %d\n", f->frequency);
+
+ return rc;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+
+/*
+ -R, --list-registers=type=<host/i2cdrv/i2caddr>,
+ chip=<chip>[,min=<addr>,max=<addr>]
+ dump registers from <min> to <max> [VIDIOC_DBG_G_REGISTER]
+ -r, --set-register=type=<host/i2cdrv/i2caddr>,
+ chip=<chip>,reg=<addr>,val=<val>
+ set the register [VIDIOC_DBG_S_REGISTER]
+
+ if type == host, then <chip> is the hosts chip ID (default 0)
+ if type == i2cdrv (default), then <chip> is the I2C driver name or ID
+ if type == i2caddr, then <chip> is the 7-bit I2C address
+*/
+
+static int vidioc_g_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int ret = 0;
+ u8 value[4] = { 0, 0, 0, 0 };
+ u32 data = 0;
+
+ switch (reg->match.type) {
+ case V4L2_CHIP_MATCH_HOST:
+ switch (reg->match.addr) {
+ case 0: /* Cx231xx - internal registers */
+ ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
+ (u16)reg->reg, value, 4);
+ reg->val = value[0] | value[1] << 8 |
+ value[2] << 16 | value[3] << 24;
+ break;
+ case 1: /* AFE - read byte */
+ ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
+ (u16)reg->reg, 2, &data, 1);
+ reg->val = le32_to_cpu(data & 0xff);
+ break;
+ case 14: /* AFE - read dword */
+ ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
+ (u16)reg->reg, 2, &data, 4);
+ reg->val = le32_to_cpu(data);
+ break;
+ case 2: /* Video Block - read byte */
+ ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
+ (u16)reg->reg, 2, &data, 1);
+ reg->val = le32_to_cpu(data & 0xff);
+ break;
+ case 24: /* Video Block - read dword */
+ ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
+ (u16)reg->reg, 2, &data, 4);
+ reg->val = le32_to_cpu(data);
+ break;
+ case 3: /* I2S block - read byte */
+ ret = cx231xx_read_i2c_data(dev,
+ I2S_BLK_DEVICE_ADDRESS,
+ (u16)reg->reg, 1,
+ &data, 1);
+ reg->val = le32_to_cpu(data & 0xff);
+ break;
+ case 34: /* I2S Block - read dword */
+ ret =
+ cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
+ (u16)reg->reg, 1, &data, 4);
+ reg->val = le32_to_cpu(data);
+ break;
+ }
+ return ret < 0 ? ret : 0;
+
+ case V4L2_CHIP_MATCH_I2C_DRIVER:
+ call_all(dev, core, g_register, reg);
+ return 0;
+ case V4L2_CHIP_MATCH_I2C_ADDR:
+ /* Not supported yet */
+ return -EINVAL;
+ default:
+ if (!v4l2_chip_match_host(®->match))
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->lock);
+ call_all(dev, core, g_register, reg);
+ mutex_unlock(&dev->lock);
+
+ return ret;
+}
+
+static int vidioc_s_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int ret = 0;
+ __le64 buf;
+ u32 value;
+ u8 data[4] = { 0, 0, 0, 0 };
+
+ buf = cpu_to_le64(reg->val);
+
+ switch (reg->match.type) {
+ case V4L2_CHIP_MATCH_HOST:
+ {
+ value = (u32) buf & 0xffffffff;
+
+ switch (reg->match.addr) {
+ case 0: /* cx231xx internal registers */
+ data[0] = (u8) value;
+ data[1] = (u8) (value >> 8);
+ data[2] = (u8) (value >> 16);
+ data[3] = (u8) (value >> 24);
+ ret = cx231xx_write_ctrl_reg(dev,
+ VRT_SET_REGISTER,
+ (u16)reg->reg, data,
+ 4);
+ break;
+ case 1: /* AFE - read byte */
+ ret = cx231xx_write_i2c_data(dev,
+ AFE_DEVICE_ADDRESS,
+ (u16)reg->reg, 2,
+ value, 1);
+ break;
+ case 14: /* AFE - read dword */
+ ret = cx231xx_write_i2c_data(dev,
+ AFE_DEVICE_ADDRESS,
+ (u16)reg->reg, 2,
+ value, 4);
+ break;
+ case 2: /* Video Block - read byte */
+ ret =
+ cx231xx_write_i2c_data(dev,
+ VID_BLK_I2C_ADDRESS,
+ (u16)reg->reg, 2,
+ value, 1);
+ break;
+ case 24: /* Video Block - read dword */
+ ret =
+ cx231xx_write_i2c_data(dev,
+ VID_BLK_I2C_ADDRESS,
+ (u16)reg->reg, 2,
+ value, 4);
+ break;
+ case 3: /* I2S block - read byte */
+ ret =
+ cx231xx_write_i2c_data(dev,
+ I2S_BLK_DEVICE_ADDRESS,
+ (u16)reg->reg, 1,
+ value, 1);
+ break;
+ case 34: /* I2S block - read dword */
+ ret =
+ cx231xx_write_i2c_data(dev,
+ I2S_BLK_DEVICE_ADDRESS,
+ (u16)reg->reg, 1,
+ value, 4);
+ break;
+ }
+ }
+ return ret < 0 ? ret : 0;
+
+ default:
+ break;
+ }
+
+ mutex_lock(&dev->lock);
+ call_all(dev, core, s_register, reg);
+ mutex_unlock(&dev->lock);
+
+ return ret;
+}
+#endif
+
+static int vidioc_cropcap(struct file *file, void *priv,
+ struct v4l2_cropcap *cc)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ 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;
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+ rc = res_get(fh);
+
+ if (likely(rc >= 0))
+ rc = videobuf_streamon(&fh->vb_vidq);
+
+ call_all(dev, video, s_stream, 1);
+
+ mutex_unlock(&dev->lock);
+
+ return rc;
+}
+
+static int vidioc_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
+ (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
+ return -EINVAL;
+ if (type != fh->type)
+ return -EINVAL;
+
+ mutex_lock(&dev->lock);
+
+ cx25840_call(dev, video, s_stream, 0);
+
+ videobuf_streamoff(&fh->vb_vidq);
+ res_free(fh);
+
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
+ strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
+ usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
+
+ cap->version = CX231XX_VERSION_CODE;
+
+ cap->capabilities = V4L2_CAP_VBI_CAPTURE |
+#if 0
+ V4L2_CAP_SLICED_VBI_CAPTURE |
+#endif
+ V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_AUDIO |
+ V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING;
+
+ if (dev->tuner_type != TUNER_ABSENT)
+ cap->capabilities |= V4L2_CAP_TUNER;
+
+ return 0;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ if (unlikely(f->index >= ARRAY_SIZE(format)))
+ return -EINVAL;
+
+ strlcpy(f->description, format[f->index].name, sizeof(f->description));
+ f->pixelformat = format[f->index].fourcc;
+
+ return 0;
+}
+
+/* Sliced VBI ioctls */
+static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+
+ f->fmt.sliced.service_set = 0;
+
+ call_all(dev, video, g_fmt, f);
+
+ if (f->fmt.sliced.service_set == 0)
+ rc = -EINVAL;
+
+ mutex_unlock(&dev->lock);
+ return rc;
+}
+
+static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+ call_all(dev, video, g_fmt, f);
+ mutex_unlock(&dev->lock);
+
+ if (f->fmt.sliced.service_set == 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* RAW VBI ioctls */
+
+static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
+ 35468950 : 28636363;
+ f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
+ f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
+ f->fmt.vbi.offset = 64 * 4;
+ f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
+ PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
+ f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
+ PAL_VBI_LINES : NTSC_VBI_LINES;
+ f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
+ PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
+ f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
+
+ return 0;
+
+}
+
+static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+
+ if (dev->vbi_stream_on && !fh->stream_on) {
+ cx231xx_errdev("%s device in use by another fh\n", __func__);
+ return -EBUSY;
+ }
+
+ f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ f->fmt.vbi.sampling_rate = (dev->norm & V4L2_STD_625_50) ?
+ 35468950 : 28636363;
+ f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
+ f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
+ f->fmt.vbi.offset = 244;
+ f->fmt.vbi.flags = 0;
+ f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ?
+ PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
+ f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ?
+ PAL_VBI_LINES : NTSC_VBI_LINES;
+ f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ?
+ PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
+ f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
+
+ return 0;
+
+}
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *rb)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ return videobuf_reqbufs(&fh->vb_vidq, rb);
+}
+
+static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ return videobuf_querybuf(&fh->vb_vidq, b);
+}
+
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ return videobuf_qbuf(&fh->vb_vidq, b);
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+ struct cx231xx_fh *fh = priv;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
+}
+
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
+{
+ struct cx231xx_fh *fh = priv;
+
+ return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
+}
+#endif
+
+/* ----------------------------------------------------------- */
+/* RADIO ESPECIFIC IOCTLS */
+/* ----------------------------------------------------------- */
+
+static int radio_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
+
+ strlcpy(cap->driver, "cx231xx", sizeof(cap->driver));
+ strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card));
+ usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
+
+ cap->version = CX231XX_VERSION_CODE;
+ cap->capabilities = V4L2_CAP_TUNER;
+ return 0;
+}
+
+static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+ struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
+
+ if (unlikely(t->index > 0))
+ return -EINVAL;
+
+ strcpy(t->name, "Radio");
+ t->type = V4L2_TUNER_RADIO;
+
+ mutex_lock(&dev->lock);
+ call_all(dev, tuner, s_tuner, t);
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+static int radio_enum_input(struct file *file, void *priv, struct v4l2_input *i)
+{
+ if (i->index != 0)
+ return -EINVAL;
+ strcpy(i->name, "Radio");
+ i->type = V4L2_INPUT_TYPE_TUNER;
+
+ return 0;
+}
+
+static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ if (unlikely(a->index))
+ return -EINVAL;
+
+ strcpy(a->name, "Radio");
+ return 0;
+}
+
+static int radio_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+ struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev;
+
+ if (0 != t->index)
+ return -EINVAL;
+
+ mutex_lock(&dev->lock);
+ call_all(dev, tuner, s_tuner, t);
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+static int radio_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+ return 0;
+}
+
+static int radio_s_input(struct file *file, void *fh, unsigned int i)
+{
+ return 0;
+}
+
+static int radio_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *c)
+{
+ int i;
+
+ if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
+ return -EINVAL;
+ if (c->id == V4L2_CID_AUDIO_MUTE) {
+ for (i = 0; i < CX231XX_CTLS; i++)
+ if (cx231xx_ctls[i].v.id == c->id)
+ break;
+ *c = cx231xx_ctls[i].v;
+ } else
+ *c = no_ctl;
+ return 0;
+}
+
+/*
+ * cx231xx_v4l2_open()
+ * inits the device and starts isoc transfer
+ */
+static int cx231xx_v4l2_open(struct file *filp)
+{
+ int minor = video_devdata(filp)->minor;
+ int errCode = 0, radio = 0;
+ struct cx231xx *dev = NULL;
+ struct cx231xx_fh *fh;
+ enum v4l2_buf_type fh_type = 0;
+
+ dev = cx231xx_get_device(minor, &fh_type, &radio);
+ if (NULL == dev)
+ return -ENODEV;
+
+ mutex_lock(&dev->lock);
+
+ cx231xx_videodbg("open minor=%d type=%s users=%d\n",
+ minor, v4l2_type_names[fh_type], dev->users);
+
+#if 0
+ errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
+ if (errCode < 0) {
+ cx231xx_errdev
+ ("Device locked on digital mode. Can't open analog\n");
+ mutex_unlock(&dev->lock);
+ return -EBUSY;
+ }
+#endif
+
+ fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL);
+ if (!fh) {
+ cx231xx_errdev("cx231xx-video.c: Out of memory?!\n");
+ mutex_unlock(&dev->lock);
+ return -ENOMEM;
+ }
+ fh->dev = dev;
+ fh->radio = radio;
+ fh->type = fh_type;
+ filp->private_data = fh;
+
+ if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
+ dev->width = norm_maxw(dev);
+ dev->height = norm_maxh(dev);
+ dev->hscale = 0;
+ dev->vscale = 0;
+
+ /* Power up in Analog TV mode */
+ cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
+
+#if 0
+ cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
+#endif
+ cx231xx_resolution_set(dev);
+
+ /* set video alternate setting */
+ cx231xx_set_video_alternate(dev);
+
+ /* Needed, since GPIO might have disabled power of
+ some i2c device */
+ cx231xx_config_i2c(dev);
+
+ /* device needs to be initialized before isoc transfer */
+ dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
+ video_mux(dev, dev->video_input);
+
+ }
+ if (fh->radio) {
+ cx231xx_videodbg("video_open: setting radio device\n");
+
+ /* cx231xx_start_radio(dev); */
+
+ call_all(dev, tuner, s_radio);
+ }
+
+ dev->users++;
+
+ if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops,
+ NULL, &dev->video_mode.slock,
+ fh->type, V4L2_FIELD_INTERLACED,
+ sizeof(struct cx231xx_buffer), fh);
+ if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+ /* Set the required alternate setting VBI interface works in
+ Bulk mode only */
+ cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
+
+ videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops,
+ NULL, &dev->vbi_mode.slock,
+ fh->type, V4L2_FIELD_SEQ_TB,
+ sizeof(struct cx231xx_buffer), fh);
+ }
+
+ mutex_unlock(&dev->lock);
+
+ return errCode;
+}
+
+/*
+ * cx231xx_realease_resources()
+ * unregisters the v4l2,i2c and usb devices
+ * called when the device gets disconected or at module unload
+*/
+void cx231xx_release_analog_resources(struct cx231xx *dev)
+{
+
+ /*FIXME: I2C IR should be disconnected */
+
+ if (dev->radio_dev) {
+ if (-1 != dev->radio_dev->minor)
+ video_unregister_device(dev->radio_dev);
+ else
+ video_device_release(dev->radio_dev);
+ dev->radio_dev = NULL;
+ }
+ if (dev->vbi_dev) {
+ cx231xx_info("V4L2 device /dev/vbi%d deregistered\n",
+ dev->vbi_dev->num);
+ if (-1 != dev->vbi_dev->minor)
+ video_unregister_device(dev->vbi_dev);
+ else
+ video_device_release(dev->vbi_dev);
+ dev->vbi_dev = NULL;
+ }
+ if (dev->vdev) {
+ cx231xx_info("V4L2 device /dev/video%d deregistered\n",
+ dev->vdev->num);
+ if (-1 != dev->vdev->minor)
+ video_unregister_device(dev->vdev);
+ else
+ video_device_release(dev->vdev);
+ dev->vdev = NULL;
+ }
+}
+
+/*
+ * cx231xx_v4l2_close()
+ * stops streaming and deallocates all resources allocated by the v4l2
+ * calls and ioctls
+ */
+static int cx231xx_v4l2_close(struct file *filp)
+{
+ struct cx231xx_fh *fh = filp->private_data;
+ struct cx231xx *dev = fh->dev;
+
+ cx231xx_videodbg("users=%d\n", dev->users);
+
+ mutex_lock(&dev->lock);
+
+ if (res_check(fh))
+ res_free(fh);
+
+ if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+ videobuf_stop(&fh->vb_vidq);
+ videobuf_mmap_free(&fh->vb_vidq);
+
+ /* the device is already disconnect,
+ free the remaining resources */
+ if (dev->state & DEV_DISCONNECTED) {
+ cx231xx_release_resources(dev);
+ mutex_unlock(&dev->lock);
+ kfree(dev);
+ return 0;
+ }
+
+ /* do this before setting alternate! */
+ cx231xx_uninit_vbi_isoc(dev);
+
+ /* set alternate 0 */
+ if (!dev->vbi_or_sliced_cc_mode)
+ cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
+ else
+ cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
+
+ kfree(fh);
+ dev->users--;
+ wake_up_interruptible_nr(&dev->open, 1);
+ mutex_unlock(&dev->lock);
+ return 0;
+ }
+
+ if (dev->users == 1) {
+ videobuf_stop(&fh->vb_vidq);
+ videobuf_mmap_free(&fh->vb_vidq);
+
+ /* the device is already disconnect,
+ free the remaining resources */
+ if (dev->state & DEV_DISCONNECTED) {
+ cx231xx_release_resources(dev);
+ mutex_unlock(&dev->lock);
+ kfree(dev);
+ return 0;
+ }
+
+ /* Save some power by putting tuner to sleep */
+ call_all(dev, tuner, s_standby);
+
+ /* do this before setting alternate! */
+ cx231xx_uninit_isoc(dev);
+ cx231xx_set_mode(dev, CX231XX_SUSPEND);
+
+ /* set alternate 0 */
+ cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
+ }
+ kfree(fh);
+ dev->users--;
+ wake_up_interruptible_nr(&dev->open, 1);
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+/*
+ * cx231xx_v4l2_read()
+ * will allocate buffers when called for the first time
+ */
+static ssize_t
+cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
+ loff_t *pos)
+{
+ struct cx231xx_fh *fh = filp->private_data;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
+ (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) {
+ mutex_lock(&dev->lock);
+ rc = res_get(fh);
+ mutex_unlock(&dev->lock);
+
+ if (unlikely(rc < 0))
+ return rc;
+
+ return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
+ filp->f_flags & O_NONBLOCK);
+ }
+ return 0;
+}
+
+/*
+ * cx231xx_v4l2_poll()
+ * will allocate buffers when called for the first time
+ */
+static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table * wait)
+{
+ struct cx231xx_fh *fh = filp->private_data;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+ rc = res_get(fh);
+ mutex_unlock(&dev->lock);
+
+ if (unlikely(rc < 0))
+ return POLLERR;
+
+ if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) ||
+ (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type))
+ return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
+ else
+ return POLLERR;
+}
+
+/*
+ * cx231xx_v4l2_mmap()
+ */
+static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct cx231xx_fh *fh = filp->private_data;
+ struct cx231xx *dev = fh->dev;
+ int rc;
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&dev->lock);
+ rc = res_get(fh);
+ mutex_unlock(&dev->lock);
+
+ if (unlikely(rc < 0))
+ return rc;
+
+ rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
+
+ cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
+ (unsigned long)vma->vm_start,
+ (unsigned long)vma->vm_end -
+ (unsigned long)vma->vm_start, rc);
+
+ return rc;
+}
+
+static const struct v4l2_file_operations cx231xx_v4l_fops = {
+ .owner = THIS_MODULE,
+ .open = cx231xx_v4l2_open,
+ .release = cx231xx_v4l2_close,
+ .read = cx231xx_v4l2_read,
+ .poll = cx231xx_v4l2_poll,
+ .mmap = cx231xx_v4l2_mmap,
+ .ioctl = video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops video_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
+ .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
+ .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
+ .vidioc_s_fmt_vbi_cap = vidioc_try_fmt_vbi_cap,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_cropcap = vidioc_cropcap,
+ .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
+ .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
+ .vidioc_reqbufs = vidioc_reqbufs,
+ .vidioc_querybuf = vidioc_querybuf,
+ .vidioc_qbuf = vidioc_qbuf,
+ .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_s_std = vidioc_s_std,
+ .vidioc_g_std = vidioc_g_std,
+ .vidioc_enum_input = vidioc_enum_input,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+ .vidioc_streamon = vidioc_streamon,
+ .vidioc_streamoff = vidioc_streamoff,
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = vidioc_g_register,
+ .vidioc_s_register = vidioc_s_register,
+#endif
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+ .vidiocgmbuf = vidiocgmbuf,
+#endif
+};
+
+static struct video_device cx231xx_vbi_template;
+
+static const struct video_device cx231xx_video_template = {
+ .fops = &cx231xx_v4l_fops,
+ .release = video_device_release,
+ .ioctl_ops = &video_ioctl_ops,
+ .minor = -1,
+ .tvnorms = V4L2_STD_ALL,
+ .current_norm = V4L2_STD_PAL,
+};
+
+static const struct v4l2_file_operations radio_fops = {
+ .owner = THIS_MODULE,
+ .open = cx231xx_v4l2_open,
+ .release = cx231xx_v4l2_close,
+ .ioctl = video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops radio_ioctl_ops = {
+ .vidioc_querycap = radio_querycap,
+ .vidioc_g_tuner = radio_g_tuner,
+ .vidioc_enum_input = radio_enum_input,
+ .vidioc_g_audio = radio_g_audio,
+ .vidioc_s_tuner = radio_s_tuner,
+ .vidioc_s_audio = radio_s_audio,
+ .vidioc_s_input = radio_s_input,
+ .vidioc_queryctrl = radio_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = vidioc_g_register,
+ .vidioc_s_register = vidioc_s_register,
+#endif
+};
+
+static struct video_device cx231xx_radio_template = {
+ .name = "cx231xx-radio",
+ .fops = &radio_fops,
+ .ioctl_ops = &radio_ioctl_ops,
+ .minor = -1,
+};
+
+/******************************** usb interface ******************************/
+
+static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
+ const struct video_device
+ *template, const char *type_name)
+{
+ struct video_device *vfd;
+
+ vfd = video_device_alloc();
+ if (NULL == vfd)
+ return NULL;
+
+ *vfd = *template;
+ vfd->minor = -1;
+ vfd->v4l2_dev = &dev->v4l2_dev;
+ vfd->release = video_device_release;
+ vfd->debug = video_debug;
+
+ snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
+
+ return vfd;
+}
+
+int cx231xx_register_analog_devices(struct cx231xx *dev)
+{
+ int ret;
+
+ cx231xx_info("%s: v4l2 driver version %d.%d.%d\n",
+ dev->name,
+ (CX231XX_VERSION_CODE >> 16) & 0xff,
+ (CX231XX_VERSION_CODE >> 8) & 0xff,
+ CX231XX_VERSION_CODE & 0xff);
+
+ /* set default norm */
+ /*dev->norm = cx231xx_video_template.current_norm; */
+ dev->width = norm_maxw(dev);
+ dev->height = norm_maxh(dev);
+ dev->interlaced = 0;
+ dev->hscale = 0;
+ dev->vscale = 0;
+
+ /* Analog specific initialization */
+ dev->format = &format[0];
+ /* video_mux(dev, dev->video_input); */
+
+ /* Audio defaults */
+ dev->mute = 1;
+ dev->volume = 0x1f;
+
+ /* enable vbi capturing */
+ /* write code here... */
+
+ /* allocate and fill video video_device struct */
+ dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
+ if (!dev->vdev) {
+ cx231xx_errdev("cannot allocate video_device.\n");
+ return -ENODEV;
+ }
+
+ /* register v4l2 video video_device */
+ ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
+ video_nr[dev->devno]);
+ if (ret) {
+ cx231xx_errdev("unable to register video device (error=%i).\n",
+ ret);
+ return ret;
+ }
+
+ cx231xx_info("%s/0: registered device video%d [v4l2]\n",
+ dev->name, dev->vdev->num);
+
+ /* Initialize VBI template */
+ memcpy(&cx231xx_vbi_template, &cx231xx_video_template,
+ sizeof(cx231xx_vbi_template));
+ strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
+
+ /* Allocate and fill vbi video_device struct */
+ dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
+
+ /* register v4l2 vbi video_device */
+ ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
+ vbi_nr[dev->devno]);
+ if (ret < 0) {
+ cx231xx_errdev("unable to register vbi device\n");
+ return ret;
+ }
+
+ cx231xx_info("%s/0: registered device vbi%d\n",
+ dev->name, dev->vbi_dev->num);
+
+ if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
+ dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
+ "radio");
+ if (!dev->radio_dev) {
+ cx231xx_errdev("cannot allocate video_device.\n");
+ return -ENODEV;
+ }
+ ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
+ radio_nr[dev->devno]);
+ if (ret < 0) {
+ cx231xx_errdev("can't register radio device\n");
+ return ret;
+ }
+ cx231xx_info("Registered radio device as /dev/radio%d\n",
+ dev->radio_dev->num);
+ }
+
+ cx231xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
+ dev->vdev->num, dev->vbi_dev->num);
+
+ return 0;
+}
projects / linux-2.6-omap-h63xx.git / blobdiff