pd-video.c and pd-bufqueue.c contain the code for V4L2 implementation.
The code support read,mmap and user pointer.
Signed-off-by: Huang Shijie <shij...@gmail.com>
---
drivers/media/video/tlg2300/pd-bufqueue.c | 185 ++++
drivers/media/video/tlg2300/pd-video.c | 1636 +++++++++++++++++++++++++++++
2 files changed, 1821 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/video/tlg2300/pd-bufqueue.c
create mode 100644 drivers/media/video/tlg2300/pd-video.c
diff --git a/drivers/media/video/tlg2300/pd-bufqueue.c
b/drivers/media/video/tlg2300/pd-bufqueue.c
new file mode 100644
index 0000000..6106fbd
--- /dev/null
+++ b/drivers/media/video/tlg2300/pd-bufqueue.c
@@ -0,0 +1,185 @@
+#include "pd-common.h"
+#include <linux/sched.h>
+#include <linux/vmalloc.h>
+#include <linux/uaccess.h>
+#include <linux/poll.h>
+#include <linux/mm.h>
+
+void pd_bufqueue_wakeup(struct pd_bufqueue *queue)
+{
+ if (waitqueue_active(&queue->queue_wq))
+ wake_up_interruptible(&queue->queue_wq);
+}
+
+int pd_bufqueue_qbuf(struct pd_bufqueue *q, int index)
+{
+ unsigned long lock_flags;
+ struct pd_frame *f;
+
+ if (index < 0 || index >= q->buf_count)
+ return -EINVAL;
+ f = &q->frame_buffer[index];
+
+ spin_lock_irqsave(&q->queue_lock, lock_flags);
+ if (list_empty(&f->frame))
+ list_add_tail(&f->frame, &q->inqueue);
+ spin_unlock_irqrestore(&q->queue_lock, lock_flags);
+ return 0;
+}
+
+int pd_bufqueue_dqbuf(struct pd_bufqueue *q, unsigned int f_flags,
+ struct pd_frame **pd_frame)
+{
+ unsigned long lock_flags;
+ int retval = -EAGAIN;
+
+ if (list_empty(&q->outqueue)) {
+ if (f_flags & O_NONBLOCK)
+ return -EAGAIN;
+
+ retval = wait_event_interruptible_timeout(q->queue_wq,
+ !(list_empty(&q->outqueue)), HZ/2);
+ if (retval < 0)
+ return retval;
+ else if (retval == 0)
+ return -EAGAIN;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, lock_flags);
+ if (!list_empty(&q->outqueue)) {
+ *pd_frame = list_entry(q->outqueue.next,
+ struct pd_frame, frame);
+ list_del_init(&(*pd_frame)->frame);
+ retval = 0;
+ }
+ spin_unlock_irqrestore(&q->queue_lock, lock_flags);
+
+ return retval;
+}
+
+ssize_t pd_bufqueue_poll(struct pd_bufqueue *queue, struct file *file,
+ poll_table *wait)
+{
+ if (list_empty(&queue->outqueue))
+ poll_wait(file, &queue->queue_wq, wait);
+
+ if (!list_empty(&queue->outqueue))
+ return POLLIN|POLLRDNORM;
+ return 0;
+}
+
+ssize_t pd_bufqueue_read(struct pd_bufqueue *queue, unsigned int f_flags,
+ char __user *buf, size_t count)
+{
+ int rc, retval = 0, copy = 0;
+ struct pd_frame *pd_frame = NULL;
+ unsigned long retn ;
+
+ if (!queue->is_reading)
+ queue->is_reading = 1;
+
+ while (count > 0) {
+ if (!queue->read_frame) {
+ retval = pd_bufqueue_dqbuf(queue,
+ f_flags, &queue->read_frame);
+ if (retval < 0)
+ goto readout;
+ }
+ pd_frame = queue->read_frame;
+
+ rc = min(pd_frame->bytesused - queue->read_offset, count);
+ retn = copy_to_user(buf + copy,
+ pd_frame->data + queue->read_offset, rc);
+ if (retn > 0)
+ ;
+ count -= rc;
+ queue->read_offset += rc;
+ copy += rc;
+
+ if (queue->read_offset == pd_frame->bytesused) {
+ pd_bufqueue_qbuf(queue, pd_frame->index);
+ queue->read_frame = NULL;
+ queue->read_offset = 0;
+ }
+ }
+readout:
+ return copy ? copy : retval;
+}
+
+void pd_bufqueue_cleanup(struct pd_bufqueue *queue)
+{
+ unsigned int i;
+
+ for (i = 0; i < queue->buf_count; i++) {
+ if (queue->frame_buffer[i].data) {
+ if (KERNEL_MEM == queue->mtype)
+ kfree(queue->frame_buffer[i].data);
+ else
+ vfree(queue->frame_buffer[i].data);
+
+ queue->frame_buffer[i].data = NULL;
+ }
+ }
+}
+
+void pd_bufqueue_init(struct pd_bufqueue *queue, unsigned int *buf_count,
+ unsigned int buf_length, enum mem_type type)
+{
+ unsigned int i, count, alignedsize;
+
+ if (queue->frame_buffer[0].data) {
+ if (buf_length > queue->buf_length) {
+ pd_bufqueue_cleanup(queue);
+ } else {
+ *buf_count = queue->buf_count;
+ goto init_out;
+ }
+ }
+ memset(queue, 0, sizeof(*queue));
+ queue->buf_length = buf_length;
+
+ count = (*buf_count > MAX_BUFFER_NUM) ? MAX_BUFFER_NUM : *buf_count;
+ alignedsize = PAGE_ALIGN(buf_length);
+
+ for (i = 0; i < count; i++) {
+ void *mem;
+
+ if (KERNEL_MEM == type)
+ mem = kcalloc(1, alignedsize, GFP_KERNEL);
+ else
+ mem = vmalloc_user(alignedsize);
+
+ if (!mem)
+ break;
+ queue->frame_buffer[i].data = mem;
+ queue->frame_buffer[i].index = i;
+ INIT_LIST_HEAD(&queue->frame_buffer[i].frame);
+ }
+ queue->buf_count = *buf_count = i;
+ queue->mtype = type;
+
+init_out:
+ spin_lock_init(&queue->queue_lock);
+ INIT_LIST_HEAD(&queue->inqueue);
+ INIT_LIST_HEAD(&queue->outqueue);
+ init_waitqueue_head(&queue->queue_wq);
+}
+
+void reset_queue_stat(struct pd_bufqueue *q)
+{
+ unsigned long flags;
+ struct pd_frame *f = &q->frame_buffer[0];
+
+ spin_lock_irqsave(&(q->queue_lock), flags);
+ for (; f < &q->frame_buffer[MAX_BUFFER_NUM]; f++) {
+ INIT_LIST_HEAD(&f->frame);
+ f->index = f - &q->frame_buffer[0];
+ }
+ INIT_LIST_HEAD(&q->inqueue);
+ INIT_LIST_HEAD(&q->outqueue);
+ q->read_frame = NULL;
+ q->curr_frame = NULL;
+ q->read_offset = 0;
+
+ spin_unlock_irqrestore(&(q->queue_lock), flags);
+}
diff --git a/drivers/media/video/tlg2300/pd-video.c
b/drivers/media/video/tlg2300/pd-video.c
new file mode 100644
index 0000000..f9f6e19
--- /dev/null
+++ b/drivers/media/video/tlg2300/pd-video.c
@@ -0,0 +1,1636 @@
+#include "pd-common.h"
+#include "vendorcmds.h"
+#include <media/v4l2-dev.h>
+#include <linux/fs.h>
+#include <linux/vmalloc.h>
+#include <linux/videodev2.h>
+#include <linux/usb.h>
+#include <linux/mm.h>
+#include <media/v4l2-ioctl.h>
+#include <linux/sched.h>
+
+static int pd_video_release(struct file *file);
+static int pd_video_open(struct file *file);
+static int pm_video_open(struct file *file);
+static int __pd_video_release(struct file *file);
+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 = iscchronous");
+
+/*
+ * Drop frames if the hardware is not power enough
+ * and the default is the normal mode.
+ */
+int drop_frame;
+module_param(drop_frame, int, 0644);
+MODULE_PARM_DESC(drop_frame, "0 = normal, 1 = drop frame");
+
+#define DROP_MODE (1)
+#define FRAME_MAX_SIZE (720*576*2)
+#define ISO_PKT_SIZE (3072)
+
+static const struct poseidon_format poseidon_formats[] = {
+ { "YUV 422", V4L2_PIX_FMT_YUYV, 16, 0},
+ { "RGB565", V4L2_PIX_FMT_RGB565, 16, 0},
+};
+static const unsigned int POSEIDON_FORMATS = ARRAY_SIZE(poseidon_formats);
+
+#define tv(id, _name, w, h, cmd) \
+ { \
+ .v4l2_id = id, \
+ .name = _name, \
+ .swidth = w, \
+ .sheight = h, \
+ .tlg_tvnorm = cmd, \
+ }
+
+static const struct poseidon_tvnorm poseidon_tvnorms[] = {
+ tv(V4L2_STD_PAL_D, "PAL-D", 720, 576, TLG_TUNE_VSTD_PAL_D),
+ tv(V4L2_STD_PAL_B, "PAL-B", 720, 576, TLG_TUNE_VSTD_PAL_B),
+ tv(V4L2_STD_PAL_G, "PAL-G", 720, 576, TLG_TUNE_VSTD_PAL_G),
+ tv(V4L2_STD_PAL_H, "PAL-H", 720, 576, TLG_TUNE_VSTD_PAL_H),
+ tv(V4L2_STD_PAL_I, "PAL-I", 720, 576, TLG_TUNE_VSTD_PAL_I),
+ tv(V4L2_STD_PAL_M, "PAL-M", 720, 480, TLG_TUNE_VSTD_PAL_M),
+ tv(V4L2_STD_PAL_N, "PAL-N", 720, 576, TLG_TUNE_VSTD_PAL_N_COMBO),
+ tv(V4L2_STD_PAL_Nc, "PAL-Nc", 720, 576, TLG_TUNE_VSTD_PAL_N_COMBO),
+ tv(V4L2_STD_NTSC_M, "NTSC-M", 720, 480, TLG_TUNE_VSTD_NTSC_M),
+ tv(V4L2_STD_NTSC_M_JP, "NTSC-JP", 720, 480, TLG_TUNE_VSTD_NTSC_M_J),
+ tv(V4L2_STD_SECAM_B, "SECAM-B", 720, 576, TLG_TUNE_VSTD_SECAM_B),
+ tv(V4L2_STD_SECAM_D, "SECAM-D", 720, 576, TLG_TUNE_VSTD_SECAM_D),
+ tv(V4L2_STD_SECAM_G, "SECAM-G", 720, 576, TLG_TUNE_VSTD_SECAM_G),
+ tv(V4L2_STD_SECAM_H, "SECAM-H", 720, 576, TLG_TUNE_VSTD_SECAM_H),
+ tv(V4L2_STD_SECAM_K, "SECAM-K", 720, 576, TLG_TUNE_VSTD_SECAM_K),
+ tv(V4L2_STD_SECAM_K1, "SECAM-K1", 720, 576, TLG_TUNE_VSTD_SECAM_K1),
+ tv(V4L2_STD_SECAM_L, "SECAM-L", 720, 576, TLG_TUNE_VSTD_SECAM_L),
+ tv(V4L2_STD_SECAM_LC, "SECAM-LC", 720, 576, TLG_TUNE_VSTD_SECAM_L1),
+};
+static const unsigned int POSEIDON_TVNORMS = ARRAY_SIZE(poseidon_tvnorms);
+
+#define PD_TVNORMS_SUPPORT (V4L2_STD_PAL_D | V4L2_STD_PAL_B | V4L2_STD_PAL_G \
+ | V4L2_STD_PAL_H | V4L2_STD_PAL_I | V4L2_STD_PAL_M \
+ | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | V4L2_STD_NTSC_M \
+ | V4L2_STD_NTSC_M_JP | V4L2_STD_SECAM_B | V4L2_STD_SECAM_D \
+ | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H | V4L2_STD_SECAM_K \
+ | V4L2_STD_SECAM_K1 | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)
+
+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 struct v4l2_format default_v4l2_format = {
+ .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ .fmt.pix = {
+ .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 vidioc_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ strcpy(cap->driver, "Telegent Driver");
+ strcpy(cap->card, "Telegent Poseidon");
+ strcpy(cap->bus_info, "USB Bus");
+ cap->version = 0;
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
+ V4L2_CAP_AUDIO | V4L2_CAP_STREAMING |
+ V4L2_CAP_READWRITE;
+ return 0;
+}
+
+/*====================================================================*/
+static void init_copy(struct video_data *video, bool index)
+{
+ video->field_count = index;
+ video->lines_copied = 0;
+ video->prev_left = 0 ;
+ video->dst = (char *)video->video_queue.curr_frame->data
+ + index * video->lines_size;
+ video->vbi->copied = 0; /* set it here */
+}
+
+static bool get_frame(struct pd_bufqueue *q, int *need_init)
+{
+ if (q->curr_frame)
+ return true;
+
+ spin_lock(&q->queue_lock);
+ if (!list_empty(&q->inqueue)) {
+ q->curr_frame = list_entry(q->inqueue.next,
+ struct pd_frame, frame);
+ list_del_init(&q->curr_frame->frame);
+ if (need_init)
+ *need_init = 1;
+ }
+ spin_unlock(&q->queue_lock);
+
+ return !!q->curr_frame;
+
+}
+
+/* check if the video's buffer is ready */
+static bool get_video_frame(struct video_data *video)
+{
+ struct pd_bufqueue *q = &video->video_queue;
+ int need_init = 0;
+ bool ret = true;
+
+ ret = get_frame(q, &need_init);
+ if (need_init)
+ init_copy(video, 0);
+ return ret;
+}
+
+static void put_back_frame(struct pd_bufqueue *q)
+{
+
+ if (q->curr_frame == NULL)
+ return;
+
+ spin_lock(&q->queue_lock);
+ list_add_tail(&q->curr_frame->frame, &q->outqueue);
+ q->curr_frame = NULL;
+ spin_unlock(&q->queue_lock);
+
+ if (waitqueue_active(&q->queue_wq))
+ wake_up_interruptible(&q->queue_wq);
+}
+
+static void end_field(struct video_data *video)
+{
+ if (DROP_MODE == drop_frame) {
+ int i = 0;
+ char *buf = (char *)video->video_queue.curr_frame->data;
+ int size = video->lines_size;
+
+ for (; i < video->lines_per_field; i++, buf += size * 2)
+ memcpy(buf + size, buf, size);
+
+ put_back_frame(&video->video_queue);
+ return;
+ }
+
+ if (1 == video->field_count)
+ put_back_frame(&video->video_queue);
+ 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->cur_format.fmt.pix.sizeimage / 2 + video->vbi_size)
+ - (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);
+}
+
+static inline void copy_vbi_data(struct vbi_data *vbi,
+ char *src, unsigned int count)
+{
+ if (get_frame(&vbi->vbi_queue, NULL)) {
+ char *buf = vbi->vbi_queue.curr_frame->data;
+
+ if (vbi->video->field_count)
+ buf += vbi->video->vbi_size;
+ 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 = video->vbi_size - vbi->copied;
+
+ if (vbi_delta >= count) {
+ copy_vbi_data(vbi, src, count);
+ } else {
+ if (vbi_delta) {
+ copy_vbi_data(vbi, src, vbi_delta);
+ put_back_frame(&vbi->vbi_queue);
+ }
+ copy_video_data(video, src + vbi_delta, count - vbi_delta);
+ }
+}
+
+static void urb_complete_bulk(struct urb *urb)
+{
+ struct video_data *video = urb->context;
+ 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(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 video_data *video = urb->context;
+ 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(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");
+ goto out;
+ }
+ } 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)
+{
+ int i;
+
+ if (video->pd_sbuf[0].urb)
+ return 0;
+
+ for (i = 0; i < SBUF_NUM; i++) {
+ int j;
+ struct urb *urb;
+
+ urb = usb_alloc_urb(PK_PER_URB, GFP_KERNEL);
+ if (urb == NULL)
+ goto out;
+
+ video->pd_sbuf[i].urb = urb;
+ video->pd_sbuf[i].data = usb_buffer_alloc(video->udev,
+ ISO_PKT_SIZE * PK_PER_URB,
+ GFP_KERNEL,
+ &urb->transfer_dma);
+
+ urb->complete = urb_complete_iso; /* handler */
+ urb->dev = video->udev;
+ urb->context = video;
+ urb->pipe = usb_rcvisocpipe(video->udev,
+ video->endpoint_addr);
+ urb->interval = 1;
+ urb->number_of_packets = PK_PER_URB;
+ urb->transfer_flags = URB_ISO_ASAP;
+ urb->transfer_buffer = video->pd_sbuf[i].data;
+ 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;
+}
+
+static int prepare_bulk_urb(struct video_data *video)
+{
+ int i;
+ int sb_size = 0x2000 ;
+
+ if (video->pd_sbuf[0].urb)
+ return 0;
+
+ for (i = 0; i < SBUF_NUM; i++) {
+ struct urb *urb = usb_alloc_urb(0, GFP_KERNEL);
+
+ if (urb == NULL)
+ return -ENOMEM;
+ video->pd_sbuf[i].urb = urb;
+ video->pd_sbuf[i].data = usb_buffer_alloc(video->udev,
+ sb_size,
+ GFP_KERNEL,
+ &urb->transfer_dma);
+ usb_fill_bulk_urb(urb, video->udev,
+ usb_rcvbulkpipe(video->udev, video->endpoint_addr),
+ video->pd_sbuf[i].data,
+ sb_size,
+ urb_complete_bulk,
+ video);
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ }
+ return 0;
+}
+
+int usb_transfer_start(struct video_data *video)
+{
+ int i, ret;
+
+ video->is_streaming = 1;
+ for (i = 0; i < SBUF_NUM; i++) {
+ ret = usb_submit_urb(video->pd_sbuf[i].urb, GFP_KERNEL);
+ if (ret)
+ log("(%d) failed: error %d", i, ret);
+ }
+ return ret;
+}
+
+void usb_transfer_cleanup(struct video_data *video)
+{
+ struct pd_sbuf *sbuf = &video->pd_sbuf[0];
+
+ for (; sbuf < &video->pd_sbuf[SBUF_NUM]; sbuf++) {
+ if (sbuf->urb) {
+ usb_buffer_free(video->udev,
+ sbuf->urb->transfer_buffer_length,
+ sbuf->data,
+ sbuf->urb->transfer_dma);
+ usb_free_urb(sbuf->urb);
+ sbuf->urb = NULL;
+ sbuf->data = NULL;
+ }
+ }
+}
+
+int usb_transfer_stop(struct video_data *video)
+{
+ if (video->is_streaming) {
+ int i;
+
+ video->is_streaming = 0;
+ for (i = 0; i < SBUF_NUM; ++i) {
+ if (video->pd_sbuf[i].urb)
+ usb_kill_urb(video->pd_sbuf[i].urb);
+ }
+ usb_transfer_cleanup(video);
+ }
+ return 0;
+}
+
+static void usb_transfer_init(struct poseidon *pd, u8 addr,
+ struct usb_device *udev)
+{
+ struct video_data *video = &pd->video_data;
+
+ video->endpoint_addr = addr;
+ video->udev = udev;
+ video->vbi = &pd->vbi_data;
+ video->vbi->video = video;
+}
+
+static int vidioc_enum_fmt_cap(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ if (POSEIDON_FORMATS <= f->index)
+ return -EINVAL;
+ f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ f->flags = 0; /* not compressed image */
+ strcpy(f->description, poseidon_formats[f->index].name);
+ f->pixelformat = poseidon_formats[f->index].fourcc;
+ return 0;
+}
+
+static int vidioc_g_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+ struct poseidon *pd = fh;
+
+ *f = pd->video_data.cur_format;
+ return 0;
+}
+
+static int vidioc_try_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ return 0;
+}
+
+static int vidioc_s_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+ struct poseidon *pd = fh;
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ s32 ret = 0, cmd_status = 0, vid_resol;
+
+ if (V4L2_BUF_TYPE_VIDEO_CAPTURE != f->type)
+ return -EINVAL;
+ if (file != pd->file_for_stream
+ && (pd->state & POSEIDON_STATE_STREAM_CAP))
+ return -EBUSY;
+
+ mutex_lock(&pd->lock);
+ if (!(pd->state & POSEIDON_STATE_STREAM_CAP)) {
+ pd->state |= POSEIDON_STATE_STREAM_CAP;
+ pd->file_for_stream = file;
+ }
+
+ if (file == pd->file_for_stream) {
+ 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);
+
+ 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 -ENXIO;
+ }
+ }
+ mutex_unlock(&pd->lock);
+
+ pix->height = (pd->video_data.tvnormid & V4L2_STD_525_60) ? 480 : 576;
+ pix->bytesperline = pix->width * 2;
+ pix->sizeimage = pix->width * pix->height * 2;
+
+ pd->video_data.cur_format = *f;
+
+ pd->video_data.lines_per_field = pix->height / 2;
+ pd->video_data.lines_size = pix->width * 2;
+ return 0;
+}
+
+static int set_std(struct poseidon *pd, v4l2_std_id *norm)
+{
+ s32 i, ret = 0, cmd_status, param;
+
+ for (i = 0; i < POSEIDON_TVNORMS; i++) {
+ if (*norm & poseidon_tvnorms[i].v4l2_id) {
+ param = poseidon_tvnorms[i].tlg_tvnorm;
+ 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;
+
+ pd->video_data.tvnormid = poseidon_tvnorms[i].v4l2_id;
+ if (pd->video_data.tvnormid & V4L2_STD_525_60)
+ pd->video_data.vbi_size = V4L_NTSC_VBI_FRAMESIZE / 2;
+ else
+ pd->video_data.vbi_size = V4L_PAL_VBI_FRAMESIZE / 2;
+out:
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *norm)
+{
+ return set_std((struct poseidon *)fh, norm);
+}
+
+static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input
*in)
+{
+ 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 = PD_TVNORMS_SUPPORT;
+ in->status = 0;
+ return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
+{
+ struct poseidon *pd = fh;
+ *i = pd->video_data.sig_index;
+ return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
+{
+ s32 ret, cmd_status;
+ struct poseidon *pd = fh;
+
+ 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.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 poseidon *pd = fh;
+ struct poseidon_control *control = NULL;
+ s32 ret = 0, cmd_status;
+ struct tuner_custom_parameter_s tuner_param;
+
+ 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 = {};
+ struct poseidon_control *control = NULL;
+ s32 ret = 0, cmd_status, params;
+ struct poseidon *pd = fh;
+
+ 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)
+{
+ s32 count = 5, ret, cmd_status;
+ int index;
+ struct tuner_atv_sig_stat_s atv_stat;
+ struct poseidon *pd = fh;
+
+ 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.audio_index;
+ tuner->rxsubchans = pd_audio_modes[index].v4l2_audio_sub;
+ tuner->audmode = pd_audio_modes[index].v4l2_audio_mode;
+ tuner->afc = 0;
+ return 0;
+}
+
+static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *a)
+{
+ s32 index, ret = 0, cmd_status, param, audiomode;
+ struct poseidon *pd = fh;
+
+ if (0 != a->index)
+ return -EINVAL;
+
+ for (index = 0; index < POSEIDON_AUDIOMODS; index++)
+ if (a->audmode == pd_audio_modes[index].v4l2_audio_mode)
+ goto found;
+ return -EINVAL;
+found:
+ 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_UNCOMP, pd->country_code);
+ ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode,
+ &cmd_status);
+ if (!ret)
+ pd->video_data.audio_index = index;
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+static int vidioc_g_frequency(struct file *file, void *fh,
+ struct v4l2_frequency *freq)
+{
+ struct poseidon *pd = fh;
+
+ if (0 != freq->tuner)
+ return -EINVAL;
+ freq->frequency = pd->video_data.freq;
+ freq->type = V4L2_TUNER_ANALOG_TV;
+ return 0;
+}
+
+static void userptr_queue_init(struct pd_bufqueue *q, int n)
+{
+ int i = 0;
+
+ for (i = 0; i < n; i++) {
+ INIT_LIST_HEAD(&q->frame_buffer[i].frame);
+ q->user_pages[i] = NULL;
+ }
+
+ spin_lock_init(&q->queue_lock);
+ q->buf_count = n;
+ q->userptr_init = 0;
+ INIT_LIST_HEAD(&q->inqueue);
+ INIT_LIST_HEAD(&q->outqueue);
+ init_waitqueue_head(&q->queue_wq);
+}
+
+static int pm_video_open(struct file *file)
+{
+ pd_video_open(file);
+ return 0;
+}
+
+static int set_frequency(struct poseidon *pd, __u32 frequency)
+{
+ s32 ret = 0, param, cmd_status;
+
+ 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);
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ / 4);
+ pd->video_data.freq = frequency;
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+static int vidioc_s_frequency(struct file *file, void *fh,
+ struct v4l2_frequency *freq)
+{
+ struct poseidon *pd = fh;
+
+ pd->file_for_stream = file;
+#ifdef CONFIG_PM
+ pd->inode = file->f_dentry->d_inode;
+ pd->pm_suspend = pm_video_suspend;
+ pd->pm_resume = pm_video_resume;
+ pd->pm_open = pm_video_open;
+#endif
+ return set_frequency(pd, freq->frequency);
+}
+
+static int sanity_check(struct poseidon *pd, struct file *file,
+ struct v4l2_buffer *b)
+{
+ if (pd->file_for_stream != file)
+ return -EBUSY;
+
+ if (b->index > pd->video_data.video_queue.buf_count
+ || b->index < 0
+ || b->index >= MAX_BUFFER_NUM
+ || V4L2_BUF_TYPE_VIDEO_CAPTURE != b->type)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int vidioc_reqbufs(struct file *file, void *fh,
+ struct v4l2_requestbuffers *b)
+{
+ u32 count = 0;
+ struct poseidon *pd = fh;
+
+ if (file != pd->file_for_stream)
+ return -EBUSY;
+ if (pd->video_data.stream_method)
+ return -EBUSY;
+
+ if (V4L2_MEMORY_USERPTR == b->memory) {
+ pd->video_data.buf_count = b->count;
+ pd->video_data.stream_method = STREAM_USER;
+ userptr_queue_init(&pd->video_data.video_queue, b->count);
+ } else /* if (V4L2_MEMORY_MMAP == b->memory) */ {
+ pd->video_data.stream_method = STREAM_MMAP;
+
+ count = b->count;
+ pd_bufqueue_init(&pd->video_data.video_queue, &count,
+ pd->video_data.frame_size, USER_MEM);
+ b->count = count;
+ pd->video_data.buf_count = count;
+ }
+ return 0;
+}
+
+static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct poseidon *pd = fh;
+
+ if (pd->video_data.buf_count <= b->index)
+ return -EINVAL;
+
+ b->flags = V4L2_BUF_FLAG_MAPPED;
+ b->field = V4L2_FIELD_INTERLACED;
+ b->m.offset = b->index * pd->video_data.frame_size;
+ b->length = pd->video_data.frame_size;
+ return 0;
+}
+
+static void clear_user_pointer(struct pd_bufqueue *q)
+{
+ int i, j;
+
+ for (i = 0; i < q->buf_count; i++) {
+ if (!test_bit(i, (void *)&q->userptr_init))
+ continue;
+
+ vunmap(q->frame_buffer[i].data);
+ q->frame_buffer[i].data = NULL;
+
+ j = q->buf_length >> PAGE_SHIFT;
+ while (j)
+ put_page(q->user_pages[i][--j]);
+
+ kfree(q->user_pages[i]);
+ q->user_pages[i] = NULL;
+ }
+ q->userptr_init = 0;
+}
+
+static int setup_user_pointer(struct pd_bufqueue *q, struct v4l2_buffer *b)
+{
+ unsigned int nr_pages = b->length >> PAGE_SHIFT;
+ struct pd_frame *f = &q->frame_buffer[b->index];
+ int i;
+ int ret = -ENOMEM;
+ struct page **pagesp;
+
+ pagesp = kcalloc(1, sizeof(struct page *) * nr_pages, GFP_KERNEL);
+ if (!pagesp)
+ return -ENOMEM;
+
+ /* <1> The function get_user_pages_fast() will
+ * 1.) increase the page->count, and
+ * 2.) makes the Anonymous page Active.
+ * 3.) makes the pages pinned in memory.
+ * 4.) prevent the pages from migrating to other node in numa.
+ */
+ get_user_pages_fast((unsigned long)b->m.userptr, nr_pages, 1, pagesp);
+ if (ret < nr_pages)
+ goto free_part_pages;
+
+ /* <2> map the pages to VMALLOC space. */
+ f->data = vmap(pagesp, nr_pages, VM_MAP, PAGE_KERNEL);
+ if (!f->data)
+ goto free_all_pages;
+
+ /* <3> setup the driver's buffers */
+ f->userptr = b->m.userptr;
+ f->length = b->length;
+ f->index = b->index;
+
+ q->buf_length = b->length;
+ q->user_pages[b->index] = pagesp;
+ set_bit(b->index, (void *)&q->userptr_init);
+ return 0;
+
+free_all_pages:
+ ret = nr_pages;
+free_part_pages:
+ for (i = 0; i < ret; i++)
+ put_page(pagesp[i]);
+
+ kfree(pagesp);
+ return -EAGAIN;
+}
+
+static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct poseidon *pd = fh;
+ struct pd_bufqueue *q;
+ int ret = 0;
+
+ ret = sanity_check(pd, file, b);
+ if (ret)
+ return ret;
+
+ q = &pd->video_data.video_queue;
+
+ if (V4L2_MEMORY_USERPTR == b->memory) {
+ if (!test_bit(b->index, (void *)&q->userptr_init))
+ setup_user_pointer(q, b);
+ pd_bufqueue_qbuf(q, b->index);
+
+ b->flags |= V4L2_BUF_FLAG_QUEUED;
+ b->flags &= ~(V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE);
+ ret = 0;
+ } else /*if (V4L2_MEMORY_MMAP == b->memory) */ {
+ ret = pd_bufqueue_qbuf(q, b->index);
+ if (!ret) {
+ b->flags |= V4L2_BUF_FLAG_QUEUED;
+ b->flags &= ~V4L2_BUF_FLAG_DONE;
+ }
+ }
+ return ret;
+}
+
+static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct pd_frame *pd_frame = NULL;
+ struct poseidon *pd = fh;
+ struct video_data *video;
+ int ret;
+
+ ret = sanity_check(pd, file, b);
+ if (ret)
+ return ret;
+
+ video = &pd->video_data;
+ pd_bufqueue_dqbuf(&video->video_queue, file->f_flags, &pd_frame);
+ if (!pd_frame)
+ return -EAGAIN;
+
+ b->index = pd_frame->index;
+ b->sequence = pd_frame->frame_seq;
+ b->flags &= ~(V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE);
+ b->field = V4L2_FIELD_INTERLACED;
+ do_gettimeofday(&b->timestamp);
+
+ if (V4L2_MEMORY_USERPTR == b->memory) {
+ b->length = pd_frame->length;
+ b->m.userptr = pd_frame->userptr;
+ }
+ b->bytesused = video->cur_format.fmt.pix.sizeimage;
+
+ /* bgr to rgb */
+ if (video->cur_format.fmt.pix.pixelformat == V4L2_PIX_FMT_RGB565) {
+ u16 *buf = (u16 *)pd_frame->data;
+ for (; buf < (u16 *)(pd_frame->data + b->bytesused); buf++)
+ *buf = ((*buf) & 0x7E0)
+ | (((*buf) << 11) & 0xF800)
+ | (((*buf) >> 11) & 0x1F);
+ }
+ return 0;
+}
+
+static int start_video_stream(struct poseidon *pd)
+{
+ s32 cmd_status;
+ struct video_data *video = &pd->video_data;
+
+ vbi_request_buf(&pd->vbi_data, pd->video_data.vbi_size * 2);
+ send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
+ send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_START, &cmd_status);
+
+ if (video->cur_transfer_mode) {
+ prepare_iso_urb(video);
+ INIT_WORK(&pd->work, iso_bubble_handler);
+ } else {
+ prepare_bulk_urb(video);
+ }
+ printk(KERN_DEBUG "\t\t The USB transfer mode is %s now.\n\n",
+ video->cur_transfer_mode ? "isochronous" : "bulk");
+
+ usb_transfer_start(&pd->video_data);
+ pd->video_data.is_streaming = 1;
+ return 0;
+}
+
+int stop_video_stream(struct poseidon *pd)
+{
+ if (pd->video_data.is_streaming) {
+ s32 cmd_status;
+
+ pd->video_data.is_streaming = 0;
+ pd_bufqueue_wakeup(&pd->video_data.video_queue);
+ usb_transfer_stop(&pd->video_data);
+
+ send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
+ &cmd_status);
+
+ reset_queue_stat(&pd->video_data.video_queue);
+ reset_queue_stat(&pd->vbi_data.vbi_queue);
+ }
+ return 0;
+}
+
+int pd_video_stop_stream(struct poseidon *pd)
+{
+ mutex_lock(&pd->lock);
+ stop_video_stream(pd);
+ mutex_unlock(&pd->lock);
+ return 0;
+}
+
+static void iso_bubble_handler(struct work_struct *w)
+{
+ struct poseidon *pd = container_of(w, struct poseidon, work);
+ unsigned int i;
+
+ mutex_lock(&pd->lock);
+ start_video_stream(pd);
+
+ /* refill the queue */
+ for (i = 0; i < pd->video_data.buf_count; i++)
+ pd_bufqueue_qbuf(&pd->video_data.video_queue, i);
+
+ stop_video_stream(pd);
+ mutex_unlock(&pd->lock);
+}
+
+static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
+{
+ int ret = 0;
+ struct poseidon *pd = fh;
+
+ if (file != pd->file_for_stream)
+ return -EBUSY;
+
+ mutex_lock(&pd->lock);
+ ret = start_video_stream(pd);
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
+{
+ struct poseidon *pd = fh;
+
+ if (file != pd->file_for_stream)
+ return -EBUSY;
+
+ mutex_lock(&pd->lock);
+ stop_video_stream(pd);
+ mutex_unlock(&pd->lock);
+ return 0;
+}
+
+static int pd_video_checkmode(struct poseidon *pd)
+{
+ s32 ret = 0, cmd_status, audiomode;
+ int alternate;
+ struct video_data *video = &pd->video_data;
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/2);
+
+ if (video->cur_transfer_mode)
+ alternate = ISO_3K_BULK_ALTERNATE_IFACE;
+ else
+ alternate = BULK_ALTERNATE_IFACE;
+ ret = usb_set_interface(pd->udev, 0, alternate);
+ if (ret < 0)
+ goto error;
+
+ 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);
+
+ /* drop-field mode */
+ if (DROP_MODE == drop_frame)
+ send_set_req(pd, 0x76, 0x100, &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 */
+
+ audiomode = get_audio_std(TLG_MODE_ANALOG_TV_UNCOMP, 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);
+
+ video->tvnormid = V4L2_STD_PAL_D;
+ video->cur_format = default_v4l2_format;
+ video->vbi_size = V4L_PAL_VBI_FRAMESIZE / 2;
+ video->audio_index = 1; /* STEREO */
+ video->sig_index = 0; /* Antenna */
+error:
+ return ret;
+}
+
+static int pm_video_suspend(struct poseidon *pd)
+{
+ pm_alsa_suspend(pd);
+
+ stop_video_stream(pd);
+ usb_transfer_cleanup(&pd->video_data);
+ usb_set_interface(pd->udev, 0, 0);
+ mdelay(2000);
+ return 0;
+}
+
+static int pm_video_resume(struct poseidon *pd)
+{
+ int i;
+ v4l2_std_id tvnorm_id;
+
+ if (in_hibernation(pd)) {
+ __pd_video_release(pd->file_for_stream);
+ return 0;
+ }
+
+ tvnorm_id = pd->video_data.tvnormid;
+ pd_video_checkmode(pd);
+ if (tvnorm_id != pd->video_data.tvnormid)
+ set_std(pd, &tvnorm_id);
+ vidioc_s_fmt_cap(pd->file_for_stream, pd, &pd->video_data.cur_format);
+ set_frequency(pd, pd->video_data.freq);
+
+ for (i = 0; i < pd->video_data.buf_count; i++)
+ pd_bufqueue_qbuf(&pd->video_data.video_queue, i);
+
+ start_video_stream(pd);
+ pm_alsa_resume(pd);
+ return 0;
+}
+
+void set_debug_mode(struct video_device *vfd, int debug_mode)
+{
+ vfd->debug = 0;
+ if (debug_mode == 1)
+ vfd->debug = V4L2_DEBUG_IOCTL;
+ if (debug_mode == 2)
+ vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
+}
+
+static int pd_video_open(struct file *file)
+{
+ s32 ret = 0;
+ struct video_device *vfd = video_devdata(file);
+ struct poseidon *pd = video_get_drvdata(vfd);
+
+ mutex_lock(&pd->lock);
+ if (pd->state & POSEIDON_STATE_DISCONNECT) {
+ ret = -ENODEV;
+ goto out;
+ }
+ if (pd->state && !(pd->state & POSEIDON_STATE_ANALOG)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ usb_autopm_get_interface(pd->interface);
+ if (!pd->state) {
+ /* handle custom parameter first */
+ pd->video_data.cur_transfer_mode = usb_transfer_mode;
+ pd->country_code = country_code;
+ set_debug_mode(vfd, debug_mode);
+
+ ret = pd_video_checkmode(pd);
+ if (ret < 0)
+ goto out;
+ pd->state |= POSEIDON_STATE_ANALOG;
+ pd->file_for_stream = file;
+ usb_transfer_init(pd, 0x82, pd->udev);
+ }
+ kref_get(&pd->kref);
+ file->private_data = pd;
+ pd->video_data.users++;
+out:
+ mutex_unlock(&pd->lock);
+ return ret;
+}
+
+static int __pd_video_release(struct file *file)
+{
+ struct poseidon *pd = file->private_data;
+
+ mutex_lock(&pd->lock);
+ if (file == pd->file_for_stream
+ && (pd->state & POSEIDON_STATE_STREAM_CAP)
+ && !in_hibernation(pd)) {
+ stop_video_stream(pd);
+ if (STREAM_USER == pd->video_data.stream_method)
+ clear_user_pointer(&pd->video_data.video_queue);
+ else
+ pd_bufqueue_cleanup(&pd->video_data.video_queue);
+
+ vbi_release_buf(&pd->vbi_data);
+ usb_transfer_cleanup(&pd->video_data);
+
+ pd->state &= ~POSEIDON_STATE_STREAM_CAP;
+ pd->video_data.stream_method = 0;
+ }
+
+ pd->video_data.users--;
+ if (0 == pd->video_data.users)
+ pd->state = 0;
+ mutex_unlock(&pd->lock);
+
+ kref_put(&pd->kref, poseidon_delete);
+ file->private_data = NULL;
+ return 0;
+}
+
+static int pd_video_release(struct file *file)
+{
+ struct poseidon *pd = file->private_data;
+
+ __pd_video_release(file);
+ usb_autopm_put_interface(pd->interface);
+ return 0;
+}
+
+static long pd_video_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int country_code;
+ struct poseidon *pd = file->private_data;
+ unsigned long ret;
+
+ if (!pd || pd->state & POSEIDON_STATE_DISCONNECT)
+ return -ENODEV;
+
+ switch (cmd) {
+ case PD_COUNTRY_CODE:
+ ret = copy_from_user(&country_code, (char __user *)arg,
+ sizeof(country_code));
+ if (0 == ret)
+ pd->country_code = country_code;
+ return ret ? -EAGAIN : 0;
+
+ default:
+ return video_ioctl2(file, cmd, arg);
+ }
+}
+
+static int pd_video_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct poseidon *pd = file->private_data;
+ struct pd_frame *frame;
+ int index;
+ int ret;
+
+ if ((vma->vm_flags & VM_WRITE) && !(vma->vm_flags & VM_SHARED))
+ return -EINVAL;
+
+ index = (vma->vm_pgoff << PAGE_SHIFT) / pd->video_data.frame_size;
+ frame = &pd->video_data.video_queue.frame_buffer[index];
+
+ if (!frame->data)
+ return -EINVAL;
+
+ ret = remap_vmalloc_range(vma, frame->data, 0);
+ if (ret)
+ return ret;
+ vma->vm_flags |= VM_DONTEXPAND;
+ return 0;
+}
+
+unsigned int pd_video_poll(struct file *file, poll_table *table)
+{
+ struct poseidon *pd = file->private_data;
+ return pd_bufqueue_poll(&pd->video_data.video_queue, file, table);
+}
+
+ssize_t pd_video_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int ret = -EINVAL;
+ struct poseidon *pd = file->private_data;
+ struct video_data *video = &pd->video_data;
+
+ if (video->stream_method == 0 && !video->is_streaming) {
+ int buf_count = 4, i;
+
+ pd_bufqueue_init(&video->video_queue, &buf_count,
+ video->frame_size, USER_MEM);
+ video->buf_count = buf_count;
+ for (i = 0; i < buf_count; i++)
+ pd_bufqueue_qbuf(&video->video_queue, i);
+
+ mutex_lock(&pd->lock);
+ start_video_stream(pd);
+ mutex_unlock(&pd->lock);
+
+ video->stream_method = STREAM_RW;
+ }
+ if (video->stream_method == STREAM_RW)
+ ret = pd_bufqueue_read(&video->video_queue, file->f_flags,
+ buffer, count);
+ return ret;
+}
+
+static const struct v4l2_file_operations pd_video_fops = {
+ .owner = THIS_MODULE,
+ .open = pd_video_open,
+ .release = pd_video_release,
+ .ioctl = pd_video_ioctl,
+ .mmap = pd_video_mmap,
+ .poll = pd_video_poll,
+ .read = pd_video_read,
+};
+
+static const struct v4l2_ioctl_ops pd_video_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_cap,
+
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt_cap,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt_cap,
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt_cap,
+ /* 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,
+
+ .vidioc_s_std = vidioc_s_std,
+
+ .vidioc_enum_input = vidioc_enum_input,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+
+ /* Control handling */
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+
+ /* 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_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+};
+
+static struct video_device pd_video_template = {
+ .name = "poseidon_video",
+ .fops = &pd_video_fops,
+ .minor = -1,
+ .release = video_device_release,
+ .tvnorms = PD_TVNORMS_SUPPORT,
+ .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->parent = &(pd->udev->dev);
+ vfd->release = video_device_release;
+ video_set_drvdata(vfd, pd);
+ return vfd;
+}
+
+int pd_video_init(struct poseidon *pd)
+{
+ struct video_data *video = &pd->video_data;
+ int ret;
+
+ video->frame_size = PAGE_ALIGN(FRAME_MAX_SIZE);
+ video->video_dev = vdev_init(pd, &pd_video_template);
+ if (video->video_dev == NULL)
+ return -ENOMEM;
+
+ ret = video_register_device(video->video_dev, VFL_TYPE_GRABBER, -1);
+ if (ret < 0) {
+ video_device_release(video->video_dev);
+ video->video_dev = NULL;
+ return ret;
+ }
+ return 0;
+}
+
+void pd_video_exit(struct poseidon *pd)
+{
+ struct video_data *video = &pd->video_data;
+
+ if (video->video_dev && (-1 != video->video_dev->minor)) {
+ video_unregister_device(video->video_dev);
+ video->video_dev = NULL;
+ }
+}
--
1.6.0.6
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