This file contains the code for V4L2 implementation.
The VBI shares the same code with the video.
The code support read and mmap for IO, and you can
also choose the USB transfer mode : bulk or isochronous.
Signed-off-by: Huang Shijie <shijie8@xxxxxxxxx>
---
drivers/media/video/tlg2300/pd-video.c | 1648 ++++++++++++++++++++++++++++++++
1 files changed, 1648 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/video/tlg2300/pd-video.c
diff --git a/drivers/media/video/tlg2300/pd-video.c b/drivers/media/video/tlg2300/pd-video.c
new file mode 100644
index 0000000..5f0300a
--- /dev/null
+++ b/drivers/media/video/tlg2300/pd-video.c
@@ -0,0 +1,1648 @@
+#include <linux/fs.h>
+#include <linux/vmalloc.h>
+#include <linux/videodev2.h>
+#include <linux/usb.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-dev.h>
+
+#include "pd-common.h"
+#include "vendorcmds.h"
+
+static int pm_video_suspend(struct poseidon *pd);
+static int pm_video_resume(struct poseidon *pd);
+static void iso_bubble_handler(struct work_struct *w);
+
+int country_code = 86;
+module_param(country_code, int, 0644);
+MODULE_PARM_DESC(country_code, "country code (e.g China is 86)");
+
+int usb_transfer_mode;
+module_param(usb_transfer_mode, int, 0644);
+MODULE_PARM_DESC(usb_transfer_mode, "0 = Bulk, 1 = Isochronous");
+
+static const struct poseidon_format poseidon_formats[] = {
+ { "YUV 422", V4L2_PIX_FMT_YUYV, 16, 0},
+ { "RGB565", V4L2_PIX_FMT_RGB565, 16, 0},
+};
+
+static const struct poseidon_tvnorm poseidon_tvnorms[] = {
+ { V4L2_STD_PAL_D, "PAL-D", TLG_TUNE_VSTD_PAL_D },
+ { V4L2_STD_PAL_B, "PAL-B", TLG_TUNE_VSTD_PAL_B },
+ { V4L2_STD_PAL_G, "PAL-G", TLG_TUNE_VSTD_PAL_G },
+ { V4L2_STD_PAL_H, "PAL-H", TLG_TUNE_VSTD_PAL_H },
+ { V4L2_STD_PAL_I, "PAL-I", TLG_TUNE_VSTD_PAL_I },
+ { V4L2_STD_PAL_M, "PAL-M", TLG_TUNE_VSTD_PAL_M },
+ { V4L2_STD_PAL_N, "PAL-N", TLG_TUNE_VSTD_PAL_N_COMBO },
+ { V4L2_STD_PAL_Nc, "PAL-Nc", TLG_TUNE_VSTD_PAL_N_COMBO },
+ { V4L2_STD_NTSC_M, "NTSC-M", TLG_TUNE_VSTD_NTSC_M },
+ { V4L2_STD_NTSC_M_JP, "NTSC-JP", TLG_TUNE_VSTD_NTSC_M_J },
+ { V4L2_STD_SECAM_B, "SECAM-B", TLG_TUNE_VSTD_SECAM_B },
+ { V4L2_STD_SECAM_D, "SECAM-D", TLG_TUNE_VSTD_SECAM_D },
+ { V4L2_STD_SECAM_G, "SECAM-G", TLG_TUNE_VSTD_SECAM_G },
+ { V4L2_STD_SECAM_H, "SECAM-H", TLG_TUNE_VSTD_SECAM_H },
+ { V4L2_STD_SECAM_K, "SECAM-K", TLG_TUNE_VSTD_SECAM_K },
+ { V4L2_STD_SECAM_K1, "SECAM-K1", TLG_TUNE_VSTD_SECAM_K1 },
+ { V4L2_STD_SECAM_L, "SECAM-L", TLG_TUNE_VSTD_SECAM_L },
+ { V4L2_STD_SECAM_LC, "SECAM-LC", TLG_TUNE_VSTD_SECAM_L1 },
+};
+static const unsigned int POSEIDON_TVNORMS = ARRAY_SIZE(poseidon_tvnorms);
+
+struct pd_audio_mode {
+ u32 tlg_audio_mode;
+ u32 v4l2_audio_sub;
+ u32 v4l2_audio_mode;
+};
+
+static const struct pd_audio_mode pd_audio_modes[] = {
+ { TLG_TUNE_TVAUDIO_MODE_MONO, V4L2_TUNER_SUB_MONO,
+ V4L2_TUNER_MODE_MONO },
+ { TLG_TUNE_TVAUDIO_MODE_STEREO, V4L2_TUNER_SUB_STEREO,
+ V4L2_TUNER_MODE_STEREO },
+ { TLG_TUNE_TVAUDIO_MODE_LANG_A, V4L2_TUNER_SUB_LANG1,
+ V4L2_TUNER_MODE_LANG1 },
+ { TLG_TUNE_TVAUDIO_MODE_LANG_B, V4L2_TUNER_SUB_LANG2,
+ V4L2_TUNER_MODE_LANG2 },
+ { TLG_TUNE_TVAUDIO_MODE_LANG_C, V4L2_TUNER_SUB_LANG1,
+ V4L2_TUNER_MODE_LANG1_LANG2 }
+};
+static const unsigned int POSEIDON_AUDIOMODS = ARRAY_SIZE(pd_audio_modes);
+
+struct pd_input {
+ char *name;
+ uint32_t tlg_src;
+};
+
+static const struct pd_input pd_inputs[] = {
+ { "TV Antenna", TLG_SIG_SRC_ANTENNA },
+ { "TV Cable", TLG_SIG_SRC_CABLE },
+ { "TV SVideo", TLG_SIG_SRC_SVIDEO },
+ { "TV Composite", TLG_SIG_SRC_COMPOSITE }
+};
+static const unsigned int POSEIDON_INPUTS = ARRAY_SIZE(pd_inputs);
+
+struct poseidon_control {
+ struct v4l2_queryctrl v4l2_ctrl;
+ enum cmd_custom_param_id vc_id;
+};
+
+static struct poseidon_control controls[] = {
+ {
+ { V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
+ "brightness", 0, 10000, 1, 100, 0, },
+ CUST_PARM_ID_BRIGHTNESS_CTRL
+ },
+
+ {
+ { V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
+ "contrast", 0, 10000, 1, 100, 0, },
+ CUST_PARM_ID_CONTRAST_CTRL,
+ },
+
+ {
+ { V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
+ "hue", 0, 10000, 1, 100, 0, },
+ CUST_PARM_ID_HUE_CTRL,
+ },
+
+ {
+ { V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
+ "saturation", 0, 10000, 1, 100, 0, },
+ CUST_PARM_ID_SATURATION_CTRL,
+ },
+};
+
+static int vidioc_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ struct front_face *front = fh;
+ struct poseidon *p = front->pd;
+
+ logs(front);
+
+ strcpy(cap->driver, "tele-video");
+ strcpy(cap->card, "Telegent Poseidon");
+ usb_make_path(p->udev, cap->bus_info, sizeof(cap->bus_info));
+ cap->version = KERNEL_VERSION(0, 0, 1);
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
+ V4L2_CAP_AUDIO | V4L2_CAP_STREAMING |
+ V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE;
+ return 0;
+}
+
+/*====================================================================*/
+static void init_copy(struct video_data *video, bool index)
+{
+ struct front_face *front = video->front;
+
+ video->field_count = index;
+ video->lines_copied = 0;
+ video->prev_left = 0 ;
+ video->dst = (char *)videobuf_to_vmalloc(front->curr_frame)
+ + index * video->lines_size;
+ video->vbi->copied = 0; /* set it here */
+}
+
+static bool get_frame(struct front_face *front, int *need_init)
+{
+ struct videobuf_buffer *vb = front->curr_frame;
+
+ if (vb)
+ return true;
+
+ spin_lock(&front->queue_lock);
+ if (!list_empty(&front->active)) {
+ vb = list_entry(front->active.next,
+ struct videobuf_buffer, queue);
+ if (need_init)
+ *need_init = 1;
+ front->curr_frame = vb;
+ list_del_init(&vb->queue);
+ }
+ spin_unlock(&front->queue_lock);
+
+ return !!vb;
+}
+
+/* check if the video's buffer is ready */
+static bool get_video_frame(struct front_face *front, struct video_data *video)
+{
+ int need_init = 0;
+ bool ret = true;
+
+ ret = get_frame(front, &need_init);
+ if (ret && need_init)
+ init_copy(video, 0);
+ return ret;
+}
+
+static void submit_frame(struct front_face *front)
+{
+ struct videobuf_buffer *vb = front->curr_frame;
+
+ if (vb == NULL)
+ return;
+
+ front->curr_frame = NULL;
+ vb->state = VIDEOBUF_DONE;
+ vb->field_count++;
+ do_gettimeofday(&vb->ts);
+
+ wake_up(&vb->done);
+}
+
+/*
+ * A frame is composed of two fields. If we receive all the two fields,
+ * call the submit_frame() to submit the whole frame to applications.
+ */
+static void end_field(struct video_data *video)
+{
+ /* logs(video->front); */
+ if (1 == video->field_count)
+ submit_frame(video->front);
+ else
+ init_copy(video, 1);
+}
+
+static void copy_video_data(struct video_data *video, char *src,
+ unsigned int count)
+{
+#define copy_data(len) \
+ do { \
+ if (++video->lines_copied > video->lines_per_field) \
+ goto overflow; \
+ memcpy(video->dst, src, len);\
+ video->dst += len + video->lines_size; \
+ src += len; \
+ count -= len; \
+ } while (0)
+
+ while (count && count >= video->lines_size) {
+ if (video->prev_left) {
+ copy_data(video->prev_left);
+ video->prev_left = 0;
+ continue;
+ }
+ copy_data(video->lines_size);
+ }
+ if (count && count < video->lines_size) {
+ memcpy(video->dst, src, count);
+
+ video->prev_left = video->lines_size - count;
+ video->dst += count;
+ }
+ return;
+
+overflow:
+ end_field(video);
+}
+
+static void check_trailer(struct video_data *video, char *src, int count)
+{
+ struct vbi_data *vbi = video->vbi;
+ int offset; /* trailer's offset */
+ char *buf;
+
+ offset = (video->context.pix.sizeimage / 2 + vbi->vbi_size / 2)
+ - (vbi->copied + video->lines_size * video->lines_copied);
+ if (video->prev_left)
+ offset -= (video->lines_size - video->prev_left);
+
+ if (offset > count || offset <= 0)
+ goto short_package;
+
+ buf = src + offset;
+
+ /* trailer : (VFHS) + U32 + U32 + field_num */
+ if (!strncmp(buf, "VFHS", 4)) {
+ int field_num = *((u32 *)(buf + 12));
+
+ if ((field_num & 1) ^ video->field_count) {
+ init_copy(video, video->field_count);
+ return;
+ }
+ copy_video_data(video, src, offset);
+ }
+short_package:
+ end_field(video);
+}
+
+/* ========== Check this more carefully! =========== */
+static inline void copy_vbi_data(struct vbi_data *vbi,
+ char *src, unsigned int count)
+{
+ struct front_face *front = vbi->front;
+
+ if (front && get_frame(front, NULL)) {
+ char *buf = videobuf_to_vmalloc(front->curr_frame);
+
+ if (vbi->video->field_count)
+ buf += (vbi->vbi_size / 2);
+ memcpy(buf + vbi->copied, src, count);
+ }
+ vbi->copied += count;
+}
+
+/*
+ * Copy the normal data (VBI or VIDEO) without the trailer.
+ * VBI is not interlaced, while VIDEO is interlaced.
+ */
+static inline void copy_vbi_video_data(struct video_data *video,
+ char *src, unsigned int count)
+{
+ struct vbi_data *vbi = video->vbi;
+ unsigned int vbi_delta = (vbi->vbi_size / 2) - vbi->copied;
+
+ if (vbi_delta >= count) {
+ copy_vbi_data(vbi, src, count);
+ } else {
+ if (vbi_delta) {
+ copy_vbi_data(vbi, src, vbi_delta);
+
+ /* we receive the two fields of the VBI*/
+ if (vbi->front && video->field_count)
+ submit_frame(vbi->front);
+ }
+ copy_video_data(video, src + vbi_delta, count - vbi_delta);
+ }
+}
+
+static void urb_complete_bulk(struct urb *urb)
+{
+ struct front_face *front = urb->context;
+ struct video_data *video = &front->pd->video_data;
+ char *src = (char *)urb->transfer_buffer;
+ int count = urb->actual_length;
+ int ret = 0;
+
+ if (!video->is_streaming || urb->status) {
+ if (urb->status == -EPROTO)
+ goto resend_it;
+ return;
+ }
+ if (!get_video_frame(front, video))
+ goto resend_it;
+
+ if (count == urb->transfer_buffer_length)
+ copy_vbi_video_data(video, src, count);
+ else
+ check_trailer(video, src, count);
+
+resend_it:
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret)
+ log(" submit failed: error %d", ret);
+}
+
+/************************* for ISO *********************/
+#define GET_SUCCESS (0)
+#define GET_TRAILER (1)
+#define GET_TOO_MUCH_BUBBLE (2)
+#define GET_NONE (3)
+static int get_chunk(int start, struct urb *urb,
+ int *head, int *tail, int *bubble_err)
+{
+ struct usb_iso_packet_descriptor *pkt = NULL;
+ int ret = GET_SUCCESS;
+
+ for (*head = *tail = -1; start < urb->number_of_packets; start++) {
+ pkt = &urb->iso_frame_desc[start];
+
+ /* handle the bubble of the Hub */
+ if (-EOVERFLOW == pkt->status) {
+ if (++*bubble_err > urb->number_of_packets / 3)
+ return GET_TOO_MUCH_BUBBLE;
+ continue;
+ }
+
+ /* This is the gap */
+ if (pkt->status || pkt->actual_length <= 0
+ || pkt->actual_length > ISO_PKT_SIZE) {
+ if (*head != -1)
+ break;
+ continue;
+ }
+
+ /* a good isochronous packet */
+ if (pkt->actual_length == ISO_PKT_SIZE) {
+ if (*head == -1)
+ *head = start;
+ *tail = start;
+ continue;
+ }
+
+ /* trailer is here */
+ if (pkt->actual_length < ISO_PKT_SIZE) {
+ if (*head == -1) {
+ *head = start;
+ *tail = start;
+ return GET_TRAILER;
+ }
+ break;
+ }
+ }
+
+ if (*head == -1 && *tail == -1)
+ ret = GET_NONE;
+ return ret;
+}
+
+/*
+ * |__|------|___|-----|_______|
+ * ^ ^
+ * | |
+ * gap gap
+ */
+static void urb_complete_iso(struct urb *urb)
+{
+ struct front_face *front = urb->context;
+ struct video_data *video = &front->pd->video_data;
+ int bubble_err = 0, head = 0, tail = 0;
+ char *src = (char *)urb->transfer_buffer;
+ int ret = 0;
+
+ if (!video->is_streaming)
+ return;
+
+ do {
+ if (!get_video_frame(front, video))
+ goto out;
+
+ switch (get_chunk(head, urb, &head, &tail, &bubble_err)) {
+ case GET_SUCCESS:
+ copy_vbi_video_data(video, src + (head * ISO_PKT_SIZE),
+ (tail - head + 1) * ISO_PKT_SIZE);
+ break;
+ case GET_TRAILER:
+ check_trailer(video, src + (head * ISO_PKT_SIZE),
+ ISO_PKT_SIZE);
+ break;
+ case GET_NONE:
+ goto out;
+ case GET_TOO_MUCH_BUBBLE:
+ log("\t We got too much bubble");
+ schedule_work(&video->bubble_work);
+ return;
+ }
+ } while (head = tail + 1, head < urb->number_of_packets);
+
+out:
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret)
+ log("usb_submit_urb err : %d", ret);
+}
+/*============================= [ end ] =====================*/
+
+static int prepare_iso_urb(struct video_data *video)
+{
+ struct usb_device *udev = video->pd->udev;
+ int i;
+
+ if (video->urb_array[0])
+ return 0;
+
+ for (i = 0; i < SBUF_NUM; i++) {
+ struct urb *urb;
+ void *mem;
+ int j;
+
+ urb = usb_alloc_urb(PK_PER_URB, GFP_KERNEL);
+ if (urb == NULL)
+ goto out;
+
+ video->urb_array[i] = urb;
+ mem = usb_buffer_alloc(udev,
+ ISO_PKT_SIZE * PK_PER_URB,
+ GFP_KERNEL,
+ &urb->transfer_dma);
+
+ urb->complete = urb_complete_iso; /* handler */
+ urb->dev = udev;
+ urb->context = video->front;
+ urb->pipe = usb_rcvisocpipe(udev,
+ video->endpoint_addr);
+ urb->interval = 1;
+ urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
+ urb->number_of_packets = PK_PER_URB;
+ urb->transfer_buffer = mem;
+ urb->transfer_buffer_length = PK_PER_URB * ISO_PKT_SIZE;
+
+ for (j = 0; j < PK_PER_URB; j++) {
+ urb->iso_frame_desc[j].offset = ISO_PKT_SIZE * j;
+ urb->iso_frame_desc[j].length = ISO_PKT_SIZE;
+ }
+ }
+ return 0;
+out:
+ for (; i > 0; i--)
+ ;
+ return -ENOMEM;
+}
+
+/* return the succeeded number of the allocation */
+int alloc_bulk_urbs_generic(struct urb **urb_array, int num,
+ struct usb_device *udev, u8 ep_addr,
+ int buf_size, gfp_t gfp_flags,
+ usb_complete_t complete_fn, void *context)
+{
+ struct urb *urb;
+ void *mem;
+ int i;
+
+ for (i = 0; i < num; i++) {
+ urb = usb_alloc_urb(0, gfp_flags);
+ if (urb == NULL)
+ return i;
+
+ mem = usb_buffer_alloc(udev, buf_size, gfp_flags,
+ &urb->transfer_dma);
+ if (mem == NULL)
+ return i;
+
+ usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, ep_addr),
+ mem, buf_size, complete_fn, context);
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ urb_array[i] = urb;
+ }
+ return i;
+}
+
+void free_all_urb_generic(struct urb **urb_array, int num)
+{
+ int i;
+ struct urb *urb;
+
+ for (i = 0; i < num; i++) {
+ urb = urb_array[i];
+ if (urb) {
+ usb_buffer_free(urb->dev,
+ urb->transfer_buffer_length,
+ urb->transfer_buffer,
+ urb->transfer_dma);
+ usb_free_urb(urb);
+ urb_array[i] = NULL;
+ }
+ }
+}
+
+static int prepare_bulk_urb(struct video_data *video)
+{
+ if (video->urb_array[0])
+ return 0;
+
+ alloc_bulk_urbs_generic(video->urb_array, SBUF_NUM,
+ video->pd->udev, video->endpoint_addr,
+ 0x2000, GFP_KERNEL,
+ urb_complete_bulk, video->front);
+ return 0;
+}
+
+/* free the URBs */
+static void free_all_urb(struct video_data *video)
+{
+ free_all_urb_generic(video->urb_array, SBUF_NUM);
+}
+
+static void pd_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+ videobuf_vmalloc_free(vb);
+ vb->state = VIDEOBUF_NEEDS_INIT;
+}
+
+static void pd_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+ struct front_face *front = q->priv_data;
+ vb->state = VIDEOBUF_QUEUED;
+ list_add_tail(&vb->queue, &front->active);
+}
+
+static int pd_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+ enum v4l2_field field)
+{
+ struct front_face *front = q->priv_data;
+ int rc;
+
+ switch (front->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (VIDEOBUF_NEEDS_INIT == vb->state) {
+ struct v4l2_pix_format *pix;
+
+ pix = &front->pd->video_data.context.pix;
+ vb->size = pix->sizeimage; /* real frame size */
+ vb->width = pix->width;
+ vb->height = pix->height;
+ rc = videobuf_iolock(q, vb, NULL);
+ if (rc < 0)
+ return rc;
+ }
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (VIDEOBUF_NEEDS_INIT == vb->state) {
+ vb->size = front->pd->vbi_data.vbi_size;
+ rc = videobuf_iolock(q, vb, NULL);
+ if (rc < 0)
+ return rc;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ vb->field = field;
+ vb->state = VIDEOBUF_PREPARED;
+ return 0;
+}
+
+int fire_all_urb(struct video_data *video)
+{
+ int i, ret;
+
+ video->is_streaming = 1;
+
+ for (i = 0; i < SBUF_NUM; i++) {
+ ret = usb_submit_urb(video->urb_array[i], GFP_KERNEL);
+ if (ret)
+ log("(%d) failed: error %d", i, ret);
+ }
+ return ret;
+}
+
+static int start_video_stream(struct poseidon *pd)
+{
+ struct video_data *video = &pd->video_data;
+ s32 cmd_status;
+
+ send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
+ send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_START, &cmd_status);
+
+ if (pd->cur_transfer_mode) {
+ prepare_iso_urb(video);
+ INIT_WORK(&video->bubble_work, iso_bubble_handler);
+ } else {
+ /* The bulk mode does not need a bubble handler */
+ prepare_bulk_urb(video);
+ }
+ fire_all_urb(video);
+ return 0;
+}
+
+static int pd_buf_setup(struct videobuf_queue *q, unsigned int *count,
+ unsigned int *size)
+{
+ struct front_face *front = q->priv_data;
+ struct poseidon *pd = front->pd;
+
+ switch (front->type) {
+ default:
+ return -EINVAL;
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
+ struct video_data *video = &pd->video_data;
+ struct v4l2_pix_format *pix = &video->context.pix;
+
+ *size = PAGE_ALIGN(pix->sizeimage);/* page aligned frame size */
+ if (*count < 4)
+ *count = 4;
+ if (1) {
+ /* same in different altersetting */
+ video->endpoint_addr = 0x82;
+ video->vbi = &pd->vbi_data;
+ video->vbi->video = video;
+ video->pd = pd;
+ video->lines_per_field = pix->height / 2;
+ video->lines_size = pix->width * 2;
+ video->front = front;
+ }
+ return start_video_stream(pd);
+ }
+
+ case V4L2_BUF_TYPE_VBI_CAPTURE: {
+ struct vbi_data *vbi = &pd->vbi_data;
+
+ *size = PAGE_ALIGN(vbi->vbi_size);
+ log("size : %d", *size);
+ if (*count == 0)
+ *count = 4;
+ }
+ break;
+ }
+ return 0;
+}
+
+static struct videobuf_queue_ops pd_video_qops = {
+ .buf_setup = pd_buf_setup,
+ .buf_prepare = pd_buf_prepare,
+ .buf_queue = pd_buf_queue,
+ .buf_release = pd_buf_release,
+};
+
+static int vidioc_enum_fmt(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ if (ARRAY_SIZE(poseidon_formats) <= f->index)
+ return -EINVAL;
+ f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ f->flags = 0;
+ f->pixelformat = poseidon_formats[f->index].fourcc;
+ strcpy(f->description, poseidon_formats[f->index].name);
+ return 0;
+}
+
+static int vidioc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+
+ logs(front);
+ f->fmt.pix = pd->video_data.context.pix;
+ return 0;
+}
+
+static int vidioc_try_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ return 0;
+}
+
+/*
+ * VLC calls VIDIOC_S_STD before VIDIOC_S_FMT, while
+ * Mplayer calls them in the reverse order.
+ */
+static int pd_vidioc_s_fmt(struct poseidon *pd, struct v4l2_pix_format *pix)
+{
+ struct video_data *video = &pd->video_data;
+ struct running_context *context = &video->context;
+ struct v4l2_pix_format *pix_def = &context->pix;
+ s32 ret = 0, cmd_status = 0, vid_resol;
+
+ /* set the pixel format to firmware */
+ if (pix->pixelformat == V4L2_PIX_FMT_RGB565) {
+ vid_resol = TLG_TUNER_VID_FORMAT_RGB_565;
+ } else {
+ pix->pixelformat = V4L2_PIX_FMT_YUYV;
+ vid_resol = TLG_TUNER_VID_FORMAT_YUV;
+ }
+ ret = send_set_req(pd, VIDEO_STREAM_FMT_SEL,
+ vid_resol, &cmd_status);
+
+ /* set the resolution to firmware */
+ vid_resol = TLG_TUNE_VID_RES_720;
+ switch (pix->width) {
+ case 704:
+ vid_resol = TLG_TUNE_VID_RES_704;
+ break;
+ default:
+ pix->width = 720;
+ case 720:
+ break;
+ }
+ ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
+ vid_resol, &cmd_status);
+ if (ret || cmd_status) {
+ mutex_unlock(&pd->lock);
+ return -EBUSY;
+ }
+
+ pix_def->pixelformat = pix->pixelformat; /* save it */
+ pix->height = (context->tvnormid & V4L2_STD_525_60) ? 480 : 576;
+
+ /* Compare with the default setting */
+ if ((pix_def->width != pix->width)
+ || (pix_def->height != pix->height)) {
+ pix_def->width = pix->width;
+ pix_def->height = pix->height;
+ pix_def->bytesperline = pix->width * 2;
+ pix_def->sizeimage = pix->width * pix->height * 2;
+ }
+ *pix = *pix_def;
+
+ return 0;
+}
+
+static int vidioc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+
+ logs(front);
+ /* stop VBI here */
+ if (V4L2_BUF_TYPE_VIDEO_CAPTURE != f->type)
+ return -EINVAL;
+
+ mutex_lock(&pd->lock);
+ if (pd->file_for_stream == NULL)
+ pd->file_for_stream = file;
+ else if (file != pd->file_for_stream) {
+ mutex_unlock(&pd->lock);
+ return -EINVAL;
+ }
+
+ pd_vidioc_s_fmt(pd, &f->fmt.pix);
+ mutex_unlock(&pd->lock);
+ return 0;
+}
+
+static int vidioc_g_fmt_vbi(struct file *file, void *fh,
+ struct v4l2_format *v4l2_f)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ struct v4l2_vbi_format *vbi_fmt = &v4l2_f->fmt.vbi;
+
+ vbi_fmt->samples_per_line = 720 * 2;
+ vbi_fmt->sampling_rate = 6750000 * 4;
+ vbi_fmt->sample_format = V4L2_PIX_FMT_GREY;
+ vbi_fmt->offset = 64 * 4; /*FIXME: why offset */
+ if (pd->video_data.context.tvnormid & V4L2_STD_525_60) {
+ vbi_fmt->start[0] = 10;
+ vbi_fmt->start[1] = 264;
+ vbi_fmt->count[0] = V4L_NTSC_VBI_LINES;
+ vbi_fmt->count[1] = V4L_NTSC_VBI_LINES;
+ } else {
+ vbi_fmt->start[0] = 6;
+ vbi_fmt->start[1] = 314;
+ vbi_fmt->count[0] = V4L_PAL_VBI_LINES;
+ vbi_fmt->count[1] = V4L_PAL_VBI_LINES;
+ }
+ vbi_fmt->flags = V4L2_VBI_UNSYNC;
+ logs(front);
+ return 0;
+}
+
+static int set_std(struct poseidon *pd, v4l2_std_id *norm)
+{
+ struct video_data *video = &pd->video_data;
+ struct vbi_data *vbi = &pd->vbi_data;
+ struct running_context *context;
+ struct v4l2_pix_format *pix;
+ s32 i, ret = 0, cmd_status, param;
+ int height;
+
+ for (i = 0; i < POSEIDON_TVNORMS; i++) {
+ if (*norm & poseidon_tvnorms[i].v4l2_id) {
+ param = poseidon_tvnorms[i].tlg_tvnorm;
+ log("name : %s", poseidon_tvnorms[i].name);
+ goto found;
+ }
+ }
+ return -EINVAL;
+found:
+ mutex_lock(&pd->lock);
+ ret = send_set_req(pd, VIDEO_STD_SEL, param, &cmd_status);
+ if (ret || cmd_status)
+ goto out;
+
+ /* Set vbi size and check the height of the frame */
+ context = &video->context;
+ context->tvnormid = poseidon_tvnorms[i].v4l2_id;
+ if (context->tvnormid & V4L2_STD_525_60) {
+ vbi->vbi_size = V4L_NTSC_VBI_FRAMESIZE;
+ height = 480;
+ } else {
+ vbi->vbi_size = V4L_PAL_VBI_FRAMESIZE;
+ height = 576;
+ }
+
+ pix = &context->pix;
+ if (pix->height != height) {
+ pix->height = height;
+ pix->sizeimage = pix->width * pix->height * 2;
+ }
+
+out:
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *norm)
+{
+ struct front_face *front = fh;
+ logs(front);
+ return set_std(front->pd, norm);
+}
+
+static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *in)
+{
+ struct front_face *front = fh;
+
+ if (in->index < 0 || in->index >= POSEIDON_INPUTS)
+ return -EINVAL;
+ strcpy(in->name, pd_inputs[in->index].name);
+ in->type = V4L2_INPUT_TYPE_TUNER;
+
+ /*
+ * the audio input index mixed with this video input,
+ * Poseidon only have one audio/video, set to "0"
+ */
+ in->audioset = 0;
+ in->tuner = 0;
+ in->std = V4L2_STD_ALL;
+ in->status = 0;
+ logs(front);
+ return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ struct running_context *context = &pd->video_data.context;
+
+ logs(front);
+ *i = context->sig_index;
+ return 0;
+}
+
+/* We can support several inputs */
+static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ s32 ret, cmd_status;
+
+ if (i < 0 || i >= POSEIDON_INPUTS)
+ return -EINVAL;
+ ret = send_set_req(pd, SGNL_SRC_SEL,
+ pd_inputs[i].tlg_src, &cmd_status);
+ if (ret)
+ return ret;
+
+ pd->video_data.context.sig_index = i;
+ return 0;
+}
+
+static struct poseidon_control *check_control_id(__u32 id)
+{
+ struct poseidon_control *control = &controls[0];
+ int array_size = ARRAY_SIZE(controls);
+
+ for (; control < &controls[array_size]; control++)
+ if (control->v4l2_ctrl.id == id)
+ return control;
+ return NULL;
+}
+
+static int vidioc_queryctrl(struct file *file, void *fh,
+ struct v4l2_queryctrl *a)
+{
+ struct poseidon_control *control = NULL;
+
+ control = check_control_id(a->id);
+ if (!control)
+ return -EINVAL;
+
+ *a = control->v4l2_ctrl;
+ return 0;
+}
+
+static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ struct poseidon_control *control = NULL;
+ struct tuner_custom_parameter_s tuner_param;
+ s32 ret = 0, cmd_status;
+
+ control = check_control_id(ctrl->id);
+ if (!control)
+ return -EINVAL;
+
+ mutex_lock(&pd->lock);
+ ret = send_get_req(pd, TUNER_CUSTOM_PARAMETER, control->vc_id,
+ &tuner_param, &cmd_status, sizeof(tuner_param));
+ mutex_unlock(&pd->lock);
+
+ if (ret || cmd_status)
+ return -1;
+
+ ctrl->value = tuner_param.param_value;
+ return 0;
+}
+
+static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
+{
+ struct tuner_custom_parameter_s param = {0};
+ struct poseidon_control *control = NULL;
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ s32 ret = 0, cmd_status, params;
+
+ control = check_control_id(a->id);
+ if (!control)
+ return -EINVAL;
+
+ param.param_value = a->value;
+ param.param_id = control->vc_id;
+ params = *(s32 *)¶m; /* temp code */
+
+ mutex_lock(&pd->lock);
+ ret = send_set_req(pd, TUNER_CUSTOM_PARAMETER, params, &cmd_status);
+ ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
+ mutex_unlock(&pd->lock);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/4);
+ return ret;
+}
+
+/* Audio ioctls */
+static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+ if (0 != a->index)
+ return -EINVAL;
+ a->capability = V4L2_AUDCAP_STEREO;
+ strcpy(a->name, "USB audio in");
+ /*Poseidon have no AVL function.*/
+ a->mode = 0;
+ return 0;
+}
+
+int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+ a->index = 0;
+ a->capability = V4L2_AUDCAP_STEREO;
+ strcpy(a->name, "USB audio in");
+ a->mode = 0;
+ return 0;
+}
+
+int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+ return (0 == a->index) ? 0 : -EINVAL;
+}
+
+/* Tuner ioctls */
+static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *tuner)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ struct tuner_atv_sig_stat_s atv_stat;
+ s32 count = 5, ret, cmd_status;
+ int index;
+
+ if (0 != tuner->index)
+ return -EINVAL;
+
+ mutex_lock(&pd->lock);
+ ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
+ &atv_stat, &cmd_status, sizeof(atv_stat));
+
+ while (atv_stat.sig_lock_busy && count-- && !ret) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ);
+
+ ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
+ &atv_stat, &cmd_status, sizeof(atv_stat));
+ }
+ mutex_unlock(&pd->lock);
+
+ if (debug_mode)
+ log("P:%d,S:%d", atv_stat.sig_present, atv_stat.sig_strength);
+
+ if (ret || cmd_status)
+ tuner->signal = 0;
+ else if (atv_stat.sig_present && !atv_stat.sig_strength)
+ tuner->signal = 0xFFFF;
+ else
+ tuner->signal = (atv_stat.sig_strength * 255 / 10) << 8;
+
+ strcpy(tuner->name, "Telegent Systems");
+ tuner->type = V4L2_TUNER_ANALOG_TV;
+ tuner->rangelow = TUNER_FREQ_MIN / 62500;
+ tuner->rangehigh = TUNER_FREQ_MAX / 62500;
+ tuner->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
+ V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
+ index = pd->video_data.context.audio_idx;
+ tuner->rxsubchans = pd_audio_modes[index].v4l2_audio_sub;
+ tuner->audmode = pd_audio_modes[index].v4l2_audio_mode;
+ tuner->afc = 0;
+ logs(front);
+ return 0;
+}
+
+static int pd_vidioc_s_tuner(struct poseidon *pd, int index)
+{
+ s32 ret = 0, cmd_status, param, audiomode;
+
+ mutex_lock(&pd->lock);
+ param = pd_audio_modes[index].tlg_audio_mode;
+ ret = send_set_req(pd, TUNER_AUD_MODE, param, &cmd_status);
+ audiomode = get_audio_std(TLG_MODE_ANALOG_TV, pd->country_code);
+ ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode,
+ &cmd_status);
+ if (!ret)
+ pd->video_data.context.audio_idx = index;
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *a)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ int index;
+
+ if (0 != a->index)
+ return -EINVAL;
+ logs(front);
+ for (index = 0; index < POSEIDON_AUDIOMODS; index++)
+ if (a->audmode == pd_audio_modes[index].v4l2_audio_mode)
+ return pd_vidioc_s_tuner(pd, index);
+ return -EINVAL;
+}
+
+static int vidioc_g_frequency(struct file *file, void *fh,
+ struct v4l2_frequency *freq)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+ struct running_context *context = &pd->video_data.context;
+
+ if (0 != freq->tuner)
+ return -EINVAL;
+ freq->frequency = context->freq;
+ freq->type = V4L2_TUNER_ANALOG_TV;
+ return 0;
+}
+
+static int set_frequency(struct poseidon *pd, __u32 frequency)
+{
+ s32 ret = 0, param, cmd_status;
+ struct running_context *context = &pd->video_data.context;
+
+ param = frequency * 62500 / 1000;
+ if (param < TUNER_FREQ_MIN/1000 || param > TUNER_FREQ_MAX / 1000)
+ return -EINVAL;
+
+ mutex_lock(&pd->lock);
+ ret = send_set_req(pd, TUNE_FREQ_SELECT, param, &cmd_status);
+ ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
+
+ msleep(250); /* wait for a while until the hardware is ready. */
+ context->freq = frequency;
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+static int vidioc_s_frequency(struct file *file, void *fh,
+ struct v4l2_frequency *freq)
+{
+ struct front_face *front = fh;
+ struct poseidon *pd = front->pd;
+
+ logs(front);
+#ifdef CONFIG_PM
+ pd->pm_suspend = pm_video_suspend;
+ pd->pm_resume = pm_video_resume;
+#endif
+ return set_frequency(pd, freq->frequency);
+}
+
+static int vidioc_reqbufs(struct file *file, void *fh,
+ struct v4l2_requestbuffers *b)
+{
+ struct front_face *front = file->private_data;
+ logs(front);
+ return videobuf_reqbufs(&front->q, b);
+}
+
+static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct front_face *front = file->private_data;
+ logs(front);
+ return videobuf_querybuf(&front->q, b);
+}
+
+static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct front_face *front = file->private_data;
+ return videobuf_qbuf(&front->q, b);
+}
+
+static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct front_face *front = file->private_data;
+ return videobuf_dqbuf(&front->q, b, file->f_flags & O_NONBLOCK);
+}
+
+/* Just stop the URBs, do not free the URBs */
+int usb_transfer_stop(struct video_data *video)
+{
+ if (video->is_streaming) {
+ int i;
+ s32 cmd_status;
+ struct poseidon *pd = video->pd;
+
+ video->is_streaming = 0;
+ for (i = 0; i < SBUF_NUM; ++i) {
+ if (video->urb_array[i])
+ usb_kill_urb(video->urb_array[i]);
+ }
+
+ send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
+ &cmd_status);
+ }
+ return 0;
+}
+
+int stop_all_video_stream(struct poseidon *pd)
+{
+ struct video_data *video = &pd->video_data;
+ struct vbi_data *vbi = &pd->vbi_data;
+
+ mutex_lock(&pd->lock);
+ if (video->is_streaming) {
+ struct front_face *front = video->front;
+
+ /* stop the URBs */
+ usb_transfer_stop(video);
+ free_all_urb(video);
+
+ /* stop the host side of VIDEO */
+ videobuf_stop(&front->q);
+ videobuf_mmap_free(&front->q);
+
+ /* stop the host side of VBI */
+ front = vbi->front;
+ if (front) {
+ videobuf_stop(&front->q);
+ videobuf_mmap_free(&front->q);
+ }
+ }
+ mutex_unlock(&pd->lock);
+ return 0;
+}
+
+/*
+ * The bubbles can seriously damage the video's quality,
+ * though it occurs in very rare situation.
+ */
+static void iso_bubble_handler(struct work_struct *w)
+{
+ struct video_data *video;
+ struct poseidon *pd;
+
+ video = container_of(w, struct video_data, bubble_work);
+ pd = video->pd;
+
+ mutex_lock(&pd->lock);
+ usb_transfer_stop(video);
+ msleep(500);
+ start_video_stream(pd);
+ mutex_unlock(&pd->lock);
+}
+
+
+static int vidioc_streamon(struct file *file, void *fh,
+ enum v4l2_buf_type type)
+{
+ struct front_face *front = fh;
+
+ logs(front);
+ if (unlikely(type != front->type))
+ return -EINVAL;
+ return videobuf_streamon(&front->q);
+}
+
+static int vidioc_streamoff(struct file *file, void *fh,
+ enum v4l2_buf_type type)
+{
+ struct front_face *front = file->private_data;
+
+ logs(front);
+ if (unlikely(type != front->type))
+ return -EINVAL;
+ return videobuf_streamoff(&front->q);
+}
+
+/*
+ * Set the firmware' default values : need altersetting and country code
+ */
+static int pd_video_checkmode(struct poseidon *pd)
+{
+ s32 ret = 0, cmd_status, audiomode;
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/2);
+
+ /* choose the altersetting */
+ ret = usb_set_interface(pd->udev, 0,
+ (pd->cur_transfer_mode ?
+ ISO_3K_BULK_ALTERNATE_IFACE :
+ BULK_ALTERNATE_IFACE));
+ if (ret < 0)
+ goto error;
+
+ /* set default parameters for PAL-D , with the VBI enabled*/
+ ret = set_tuner_mode(pd, TLG_MODE_ANALOG_TV);
+ ret |= send_set_req(pd, SGNL_SRC_SEL,
+ TLG_SIG_SRC_ANTENNA, &cmd_status);
+ ret |= send_set_req(pd, VIDEO_STD_SEL,
+ TLG_TUNE_VSTD_PAL_D, &cmd_status);
+ ret |= send_set_req(pd, VIDEO_STREAM_FMT_SEL,
+ TLG_TUNER_VID_FORMAT_YUV, &cmd_status);
+ ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
+ TLG_TUNE_VID_RES_720, &cmd_status);
+ ret |= send_set_req(pd, TUNE_FREQ_SELECT, TUNER_FREQ_MIN, &cmd_status);
+ ret |= send_set_req(pd, VBI_DATA_SEL, 1, &cmd_status);/* enable vbi */
+
+ /* need country code to set the audio */
+ audiomode = get_audio_std(TLG_MODE_ANALOG_TV, pd->country_code);
+ ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode, &cmd_status);
+ ret |= send_set_req(pd, TUNER_AUD_MODE,
+ TLG_TUNE_TVAUDIO_MODE_STEREO, &cmd_status);
+ ret |= send_set_req(pd, AUDIO_SAMPLE_RATE_SEL,
+ ATV_AUDIO_RATE_48K, &cmd_status);
+error:
+ return ret;
+}
+
+#ifdef CONFIG_PM
+static int pm_video_suspend(struct poseidon *pd)
+{
+ /* stop audio */
+ pm_alsa_suspend(pd);
+
+ /* stop and free all the URBs */
+ usb_transfer_stop(&pd->video_data);
+ free_all_urb(&pd->video_data);
+
+ /* reset the interface */
+ usb_set_interface(pd->udev, 0, 0);
+ msleep(300);
+ return 0;
+}
+
+static int restore_v4l2_context(struct poseidon *pd,
+ struct running_context *context)
+{
+ struct front_face *front = pd->video_data.front;
+
+ pd_video_checkmode(pd);
+
+ set_std(pd, &context->tvnormid);
+ vidioc_s_input(NULL, front, context->sig_index);
+ pd_vidioc_s_tuner(pd, context->audio_idx);
+ pd_vidioc_s_fmt(pd, &context->pix);
+ set_frequency(pd, context->freq);
+ return 0;
+}
+
+static int pm_video_resume(struct poseidon *pd)
+{
+ struct video_data *video = &pd->video_data;
+
+ /* resume the video */
+ /* [1] restore the origin V4L2 parameters */
+ restore_v4l2_context(pd, &video->context);
+
+ /* [2] initiate video copy variables */
+ if (video->front->curr_frame)
+ init_copy(video, 0);
+
+ /* [3] fire urbs */
+ start_video_stream(pd);
+
+ /* resume the audio */
+ pm_alsa_resume(pd);
+ return 0;
+}
+#endif
+
+void set_debug_mode(struct video_device *vfd, int debug_mode)
+{
+ vfd->debug = 0;
+ if (debug_mode & 0x1)
+ vfd->debug = V4L2_DEBUG_IOCTL;
+ if (debug_mode & 0x2)
+ vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
+}
+
+static void init_video_context(struct running_context *context)
+{
+ context->sig_index = 0;
+ context->audio_idx = 1; /* stereo */
+ context->tvnormid = V4L2_STD_PAL_D;
+ context->pix = (struct v4l2_pix_format) {
+ .width = 720,
+ .height = 576,
+ .pixelformat = V4L2_PIX_FMT_YUYV,
+ .field = V4L2_FIELD_INTERLACED,
+ .bytesperline = 720 * 2,
+ .sizeimage = 720 * 576 * 2,
+ .colorspace = V4L2_COLORSPACE_SMPTE170M,
+ .priv = 0
+ };
+}
+
+static int pd_video_open(struct file *file)
+{
+ struct video_device *vfd = video_devdata(file);
+ struct poseidon *pd = video_get_drvdata(vfd);
+ struct front_face *front = NULL;
+ int ret = -ENOMEM;
+
+ mutex_lock(&pd->lock);
+ usb_autopm_get_interface(pd->interface);
+
+ if (vfd->vfl_type == VFL_TYPE_GRABBER
+ && !(pd->state & POSEIDON_STATE_ANALOG)) {
+ front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
+ if (!front)
+ goto out;
+
+ pd->cur_transfer_mode = usb_transfer_mode;/* bulk or iso */
+ pd->country_code = country_code;
+ init_video_context(&pd->video_data.context);
+
+ ret = pd_video_checkmode(pd);
+ if (ret < 0) {
+ kfree(front);
+ ret = -1;
+ goto out;
+ }
+
+ pd->state |= POSEIDON_STATE_ANALOG;
+ front->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ pd->video_data.users++;
+ set_debug_mode(vfd, debug_mode);
+
+ videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
+ NULL, &front->queue_lock,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ V4L2_FIELD_INTERLACED,/* video is interlacd */
+ sizeof(struct videobuf_buffer),/*it's enough*/
+ front);
+ } else if (vfd->vfl_type == VFL_TYPE_VBI
+ && !(pd->state & POSEIDON_STATE_VBI)) {
+ front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
+ if (!front)
+ goto out;
+
+ pd->state |= POSEIDON_STATE_VBI;
+ front->type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ pd->vbi_data.front = front;
+ pd->vbi_data.users++;
+
+ videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
+ NULL, &front->queue_lock,
+ V4L2_BUF_TYPE_VBI_CAPTURE,
+ V4L2_FIELD_NONE, /* vbi is NONE mode */
+ sizeof(struct videobuf_buffer),
+ front);
+ } else {
+ /* maybe add FM support here */
+ log("other ");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ front->pd = pd;
+ front->curr_frame = NULL;
+ INIT_LIST_HEAD(&front->active);
+ spin_lock_init(&front->queue_lock);
+
+ file->private_data = front;
+ kref_get(&pd->kref);
+
+ mutex_unlock(&pd->lock);
+ return 0;
+out:
+ usb_autopm_put_interface(pd->interface);
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+static int pd_video_release(struct file *file)
+{
+ struct front_face *front = file->private_data;
+ struct poseidon *pd = front->pd;
+ s32 cmd_status = 0;
+
+ logs(front);
+ mutex_lock(&pd->lock);
+
+ if (front->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ pd->state &= ~POSEIDON_STATE_ANALOG;
+
+ /* stop the device, and free the URBs */
+ usb_transfer_stop(&pd->video_data);
+ free_all_urb(&pd->video_data);
+
+ /* stop the firmware */
+ send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
+ &cmd_status);
+
+ pd->file_for_stream = NULL;
+ pd->video_data.users--;
+ } else if (front->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+ pd->state &= ~POSEIDON_STATE_VBI;
+ pd->vbi_data.front = NULL;
+ pd->vbi_data.users--;
+ }
+ videobuf_stop(&front->q);
+ videobuf_mmap_free(&front->q);
+
+ usb_autopm_put_interface(pd->interface);
+ mutex_unlock(&pd->lock);
+
+ kfree(front);
+ file->private_data = NULL;
+ kref_put(&pd->kref, poseidon_delete);
+ return 0;
+}
+
+static int pd_video_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct front_face *front = file->private_data;
+ return videobuf_mmap_mapper(&front->q, vma);
+}
+
+unsigned int pd_video_poll(struct file *file, poll_table *table)
+{
+ struct front_face *front = file->private_data;
+ return videobuf_poll_stream(file, &front->q, table);
+}
+
+ssize_t pd_video_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct front_face *front = file->private_data;
+ return videobuf_read_stream(&front->q, buffer, count, ppos,
+ 0, file->f_flags & O_NONBLOCK);
+}
+
+/* This struct works for both VIDEO and VBI */
+static const struct v4l2_file_operations pd_video_fops = {
+ .owner = THIS_MODULE,
+ .open = pd_video_open,
+ .release = pd_video_release,
+ .read = pd_video_read,
+ .poll = pd_video_poll,
+ .mmap = pd_video_mmap,
+ .ioctl = video_ioctl2, /* maybe changed in future */
+};
+
+static const struct v4l2_ioctl_ops pd_video_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+
+ /* Video format */
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt,
+ .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi, /* VBI */
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt,
+
+ /* Input */
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_enum_input = vidioc_enum_input,
+
+ /* Audio ioctls */
+ .vidioc_enumaudio = vidioc_enumaudio,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+
+ /* Tuner ioctls */
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_s_std = vidioc_s_std,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+
+ /* Buffer handlers */
+ .vidioc_reqbufs = vidioc_reqbufs,
+ .vidioc_querybuf = vidioc_querybuf,
+ .vidioc_qbuf = vidioc_qbuf,
+ .vidioc_dqbuf = vidioc_dqbuf,
+
+ /* Stream on/off */
+ .vidioc_streamon = vidioc_streamon,
+ .vidioc_streamoff = vidioc_streamoff,
+
+ /* Control handling */
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+};
+
+static struct video_device pd_video_template = {
+ .name = "Telegent-Video",
+ .fops = &pd_video_fops,
+ .minor = -1,
+ .release = video_device_release,
+ .tvnorms = V4L2_STD_ALL,
+ .ioctl_ops = &pd_video_ioctl_ops,
+};
+
+struct video_device *vdev_init(struct poseidon *pd, struct video_device *tmp)
+{
+ struct video_device *vfd;
+
+ vfd = video_device_alloc();
+ if (vfd == NULL)
+ return NULL;
+ *vfd = *tmp;
+ vfd->minor = -1;
+ vfd->v4l2_dev = &pd->v4l2_dev;
+ /*vfd->parent = &(pd->udev->dev); */
+ vfd->release = video_device_release;
+ video_set_drvdata(vfd, pd);
+ return vfd;
+}
+
+void destroy_video_device(struct video_device **v_dev)
+{
+ struct video_device *dev = *v_dev;
+
+ if (dev == NULL)
+ return;
+
+ if (video_is_registered(dev))
+ video_unregister_device(dev);
+ else
+ video_device_release(dev);
+ *v_dev = NULL;
+}
+
+void pd_video_exit(struct poseidon *pd)
+{
+ struct video_data *video = &pd->video_data;
+ struct vbi_data *vbi = &pd->vbi_data;
+
+ destroy_video_device(&video->v_dev);
+ destroy_video_device(&vbi->v_dev);
+ log();
+}
+
+int pd_video_init(struct poseidon *pd)
+{
+ struct video_data *video = &pd->video_data;
+ struct vbi_data *vbi = &pd->vbi_data;
+ int ret = -ENOMEM;
+
+ video->v_dev = vdev_init(pd, &pd_video_template);
+ if (video->v_dev == NULL)
+ goto out;
+
+ ret = video_register_device(video->v_dev, VFL_TYPE_GRABBER, -1);
+ if (ret != 0)
+ goto out;
+
+ /* VBI uses the same template as video */
+ vbi->v_dev = vdev_init(pd, &pd_video_template);
+ if (vbi->v_dev == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ ret = video_register_device(vbi->v_dev, VFL_TYPE_VBI, -1);
+ if (ret != 0)
+ goto out;
+ log("register VIDEO/VBI devices");
+ return 0;
+out:
+ log("VIDEO/VBI devices register failed, : %d", ret);
+ pd_video_exit(pd);
+ return ret;
+}
+
--
1.6.5.2
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
