V4L/DVB: Add driver for Telegent tlg2300
pd-common.h contains the common data structures, while
vendorcmds.h contains the vendor commands for firmware.
[mchehab@redhat.com: Folded the 10 patches with the driver]
Signed-off-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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;
+}
+