--- /dev/null
+/*
+ * Driver for the Conexant CX23885 PCIe bridge
+ *
+ * Copyright (c) 2007 Steven Toth <stoth@hauppauge.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kmod.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+#include <asm/div64.h>
+
+#include "cx23885.h"
+#include <media/v4l2-common.h>
+
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+/* Include V4L1 specific functions. Should be removed soon */
+#include <linux/videodev.h>
+#endif
+
+MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
+MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>");
+MODULE_LICENSE("GPL");
+
+/* ------------------------------------------------------------------ */
+
+static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
+static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
+static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
+
+module_param_array(video_nr, int, NULL, 0444);
+module_param_array(vbi_nr, int, NULL, 0444);
+module_param_array(radio_nr, int, NULL, 0444);
+
+MODULE_PARM_DESC(video_nr, "video device numbers");
+MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
+MODULE_PARM_DESC(radio_nr, "radio device numbers");
+
+static unsigned int video_debug = 0;
+module_param(video_debug, int, 0644);
+MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
+
+static unsigned int irq_debug = 0;
+module_param(irq_debug, int, 0644);
+MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
+
+static unsigned int vid_limit = 16;
+module_param(vid_limit, int, 0644);
+MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
+
+#define dprintk(level, fmt, arg...)\
+ if (video_debug >= level)\
+ printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg)
+
+/* ------------------------------------------------------------------- */
+/* static data */
+
+#define FORMAT_FLAGS_PACKED 0x01
+
+static struct cx23885_fmt formats[] = {
+ {
+ .name = "8 bpp, gray",
+ .fourcc = V4L2_PIX_FMT_GREY,
+ .depth = 8,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "15 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_RGB555,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "15 bpp RGB, be",
+ .fourcc = V4L2_PIX_FMT_RGB555X,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "16 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "16 bpp RGB, be",
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "24 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_BGR24,
+ .depth = 24,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "32 bpp RGB, le",
+ .fourcc = V4L2_PIX_FMT_BGR32,
+ .depth = 32,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "32 bpp RGB, be",
+ .fourcc = V4L2_PIX_FMT_RGB32,
+ .depth = 32,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "4:2:2, packed, YUYV",
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ }, {
+ .name = "4:2:2, packed, UYVY",
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ },
+};
+
+static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(formats); i++)
+ if (formats[i].fourcc == fourcc)
+ return formats+i;
+
+ printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __FUNCTION__, fourcc);
+ return NULL;
+}
+
+/* ------------------------------------------------------------------- */
+
+static const struct v4l2_queryctrl no_ctl = {
+ .name = "42",
+ .flags = V4L2_CTRL_FLAG_DISABLED,
+};
+
+static struct cx23885_ctrl cx23885_ctls[] = {
+ /* --- video --- */
+ {
+ .v = {
+ .id = V4L2_CID_BRIGHTNESS,
+ .name = "Brightness",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x7f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 128,
+ .reg = LUMA_CTRL,
+ .mask = 0x00ff,
+ .shift = 0,
+ }, {
+ .v = {
+ .id = V4L2_CID_CONTRAST,
+ .name = "Contrast",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x3f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 0,
+ .reg = LUMA_CTRL,
+ .mask = 0xff00,
+ .shift = 8,
+ }, {
+ .v = {
+ .id = V4L2_CID_HUE,
+ .name = "Hue",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x7f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 128,
+ .reg = CHROMA_CTRL,
+ .mask = 0xff0000,
+ .shift = 16,
+ }, {
+ /* strictly, this only describes only U saturation.
+ * V saturation is handled specially through code.
+ */
+ .v = {
+ .id = V4L2_CID_SATURATION,
+ .name = "Saturation",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x7f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .off = 0,
+ .reg = CHROMA_CTRL,
+ .mask = 0x00ff,
+ .shift = 0,
+ }, {
+ /* --- audio --- */
+ .v = {
+ .id = V4L2_CID_AUDIO_MUTE,
+ .name = "Mute",
+ .minimum = 0,
+ .maximum = 1,
+ .default_value = 1,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ },
+ .reg = PATH1_CTL1,
+ .mask = (0x1f << 24),
+ .shift = 24,
+ }, {
+ .v = {
+ .id = V4L2_CID_AUDIO_VOLUME,
+ .name = "Volume",
+ .minimum = 0,
+ .maximum = 0x3f,
+ .step = 1,
+ .default_value = 0x3f,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ },
+ .reg = PATH1_VOL_CTL,
+ .mask = 0xff,
+ .shift = 0,
+ }
+};
+static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
+
+const u32 cx23885_user_ctrls[] = {
+ V4L2_CID_USER_CLASS,
+ V4L2_CID_BRIGHTNESS,
+ V4L2_CID_CONTRAST,
+ V4L2_CID_SATURATION,
+ V4L2_CID_HUE,
+ V4L2_CID_AUDIO_VOLUME,
+ V4L2_CID_AUDIO_MUTE,
+ 0
+};
+EXPORT_SYMBOL(cx23885_user_ctrls);
+
+static const u32 *ctrl_classes[] = {
+ cx23885_user_ctrls,
+ NULL
+};
+
+void cx23885_video_wakeup(struct cx23885_dev *dev,
+ struct cx23885_dmaqueue *q, u32 count)
+{
+ struct cx23885_buffer *buf;
+ int bc;
+
+ for (bc = 0;; bc++) {
+ if (list_empty(&q->active))
+ break;
+ buf = list_entry(q->active.next,
+ struct cx23885_buffer, vb.queue);
+ /* count comes from the hw and is is 16bit wide --
+ * this trick handles wrap-arounds correctly for
+ * up to 32767 buffers in flight... */
+ if ((s16) (count - buf->count) < 0)
+ break;
+ do_gettimeofday(&buf->vb.ts);
+ dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
+ count, buf->count);
+ buf->vb.state = VIDEOBUF_DONE;
+ list_del(&buf->vb.queue);
+ wake_up(&buf->vb.done);
+ }
+ if (list_empty(&q->active)) {
+ del_timer(&q->timeout);
+ } else {
+ mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+ }
+ if (bc != 1)
+ printk(KERN_WARN "%s: %d buffers handled (should be 1)\n",
+ __FUNCTION__, bc);
+}
+
+int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
+{
+ dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
+ __FUNCTION__,
+ (unsigned int)norm,
+ v4l2_norm_to_name(norm));
+
+ dev->tvnorm = norm;
+
+
+ /* Tell the analog tuner/demods */
+ cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
+
+ /* Tell the internal A/V decoder */
+ cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
+
+ return 0;
+}
+
+struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
+ struct pci_dev *pci,
+ struct video_device *template,
+ char *type)
+{
+ struct video_device *vfd;
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ vfd = video_device_alloc();
+ if (NULL == vfd)
+ return NULL;
+ *vfd = *template;
+ vfd->minor = -1;
+ vfd->dev = &pci->dev;
+ vfd->release = video_device_release;
+ snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
+ dev->name, type, cx23885_boards[dev->board].name);
+ return vfd;
+}
+
+int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
+{
+ int i;
+
+ if (qctrl->id < V4L2_CID_BASE ||
+ qctrl->id >= V4L2_CID_LASTP1)
+ return -EINVAL;
+ for (i = 0; i < CX23885_CTLS; i++)
+ if (cx23885_ctls[i].v.id == qctrl->id)
+ break;
+ if (i == CX23885_CTLS) {
+ *qctrl = no_ctl;
+ return 0;
+ }
+ *qctrl = cx23885_ctls[i].v;
+ return 0;
+}
+EXPORT_SYMBOL(cx23885_ctrl_query);
+
+/* ------------------------------------------------------------------- */
+/* resource management */
+
+static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
+ unsigned int bit)
+{
+ dprintk(1, "%s()\n", __FUNCTION__);
+ if (fh->resources & bit)
+ /* have it already allocated */
+ return 1;
+
+ /* is it free? */
+ mutex_lock(&dev->lock);
+ if (dev->resources & bit) {
+ /* no, someone else uses it */
+ mutex_unlock(&dev->lock);
+ return 0;
+ }
+ /* it's free, grab it */
+ fh->resources |= bit;
+ dev->resources |= bit;
+ dprintk(1, "res: get %d\n", bit);
+ mutex_unlock(&dev->lock);
+ return 1;
+}
+
+static int res_check(struct cx23885_fh *fh, unsigned int bit)
+{
+ return (fh->resources & bit);
+}
+
+static int res_locked(struct cx23885_dev *dev, unsigned int bit)
+{
+ return (dev->resources & bit);
+}
+
+static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
+ unsigned int bits)
+{
+ BUG_ON((fh->resources & bits) != bits);
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ mutex_lock(&dev->lock);
+ fh->resources &= ~bits;
+ dev->resources &= ~bits;
+ dprintk(1, "res: put %d\n", bits);
+ mutex_unlock(&dev->lock);
+}
+
+int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
+{
+ struct v4l2_routing route;
+ memset(&route, 0, sizeof(route));
+
+ dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
+ __FUNCTION__,
+ input, INPUT(input)->vmux,
+ INPUT(input)->gpio0, INPUT(input)->gpio1,
+ INPUT(input)->gpio2, INPUT(input)->gpio3);
+ dev->input = input;
+
+ route.input = INPUT(input)->vmux;
+
+ /* Tell the internal A/V decoder */
+ cx23885_call_i2c_clients(&dev->i2c_bus[2],
+ VIDIOC_INT_S_VIDEO_ROUTING, &route);
+
+ return 0;
+}
+EXPORT_SYMBOL(cx23885_video_mux);
+
+/* ------------------------------------------------------------------ */
+int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
+ unsigned int height, enum v4l2_field field)
+{
+ dprintk(1, "%s()\n", __FUNCTION__);
+ return 0;
+}
+
+static int cx23885_start_video_dma(struct cx23885_dev *dev,
+ struct cx23885_dmaqueue *q,
+ struct cx23885_buffer *buf)
+{
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ /* setup fifo + format */
+ cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
+ buf->bpl, buf->risc.dma);
+ cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
+
+ /* reset counter */
+ cx_write(VID_A_GPCNT_CTL, 3);
+ q->count = 1;
+
+ /* enable irq */
+ cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
+ cx_set(VID_A_INT_MSK, 0x000011);
+
+ /* start dma */
+ cx_set(DEV_CNTRL2, (1<<5));
+ cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int cx23885_stop_video_dma(struct cx23885_dev *dev)
+{
+ dprintk(1, "%s()\n", __FUNCTION__);
+ /* stop dma */
+ cx_clear(VID_A_DMA_CTL, 0x11);
+
+ /* disable irqs */
+ cx_clear(PCI_INT_MSK, 0x000001);
+ cx_clear(VID_A_INT_MSK, 0x000011);
+
+ return 0;
+}
+#endif
+
+static int cx23885_restart_video_queue(struct cx23885_dev *dev,
+ struct cx23885_dmaqueue *q)
+{
+ struct cx23885_buffer *buf, *prev;
+ struct list_head *item;
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ if (!list_empty(&q->active)) {
+ buf = list_entry(q->active.next, struct cx23885_buffer,
+ vb.queue);
+ dprintk(2, "restart_queue [%p/%d]: restart dma\n",
+ buf, buf->vb.i);
+ cx23885_start_video_dma(dev, q, buf);
+ list_for_each(item, &q->active) {
+ buf = list_entry(item, struct cx23885_buffer,
+ vb.queue);
+ buf->count = q->count++;
+ }
+ mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+ return 0;
+ }
+
+ prev = NULL;
+ for (;;) {
+ if (list_empty(&q->queued))
+ return 0;
+ buf = list_entry(q->queued.next, struct cx23885_buffer,
+ vb.queue);
+ if (NULL == prev) {
+ list_move_tail(&buf->vb.queue, &q->active);
+ cx23885_start_video_dma(dev, q, buf);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = q->count++;
+ mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+ dprintk(2, "[%p/%d] restart_queue - first active\n",
+ buf, buf->vb.i);
+
+ } else if (prev->vb.width == buf->vb.width &&
+ prev->vb.height == buf->vb.height &&
+ prev->fmt == buf->fmt) {
+ list_move_tail(&buf->vb.queue, &q->active);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = q->count++;
+ prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+ prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
+ dprintk(2, "[%p/%d] restart_queue - move to active\n",
+ buf, buf->vb.i);
+ } else {
+ return 0;
+ }
+ prev = buf;
+ }
+}
+
+static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
+ unsigned int *size)
+{
+ struct cx23885_fh *fh = q->priv_data;
+
+ *size = fh->fmt->depth*fh->width*fh->height >> 3;
+ if (0 == *count)
+ *count = 32;
+ while (*size * *count > vid_limit * 1024 * 1024)
+ (*count)--;
+ return 0;
+}
+
+static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+ enum v4l2_field field)
+{
+ struct cx23885_fh *fh = q->priv_data;
+ struct cx23885_dev *dev = fh->dev;
+ struct cx23885_buffer *buf =
+ container_of(vb, struct cx23885_buffer, vb);
+ int rc, init_buffer = 0;
+ u32 line0_offset, line1_offset;
+ struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
+
+ BUG_ON(NULL == fh->fmt);
+ if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) ||
+ fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
+ return -EINVAL;
+ buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
+ if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+ return -EINVAL;
+
+ if (buf->fmt != fh->fmt ||
+ buf->vb.width != fh->width ||
+ buf->vb.height != fh->height ||
+ buf->vb.field != field) {
+ buf->fmt = fh->fmt;
+ buf->vb.width = fh->width;
+ buf->vb.height = fh->height;
+ buf->vb.field = field;
+ init_buffer = 1;
+ }
+
+ if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+ init_buffer = 1;
+ rc = videobuf_iolock(q, &buf->vb, NULL);
+ if (0 != rc)
+ goto fail;
+ }
+
+ if (init_buffer) {
+ buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
+ switch (buf->vb.field) {
+ case V4L2_FIELD_TOP:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist, 0, UNSET,
+ buf->bpl, 0, buf->vb.height);
+ break;
+ case V4L2_FIELD_BOTTOM:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist, UNSET, 0,
+ buf->bpl, 0, buf->vb.height);
+ break;
+ case V4L2_FIELD_INTERLACED:
+ if (dev->tvnorm & V4L2_STD_NTSC) {
+ /* cx25840 transmits NTSC bottom field first */
+ dprintk(1, "%s() Creating NTSC risc\n",
+ __FUNCTION__);
+ line0_offset = buf->bpl;
+ line1_offset = 0;
+ } else {
+ /* All other formats are top field first */
+ dprintk(1, "%s() Creating PAL/SECAM risc\n",
+ __FUNCTION__);
+ line0_offset = 0;
+ line1_offset = buf->bpl;
+ }
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist, line0_offset,
+ line1_offset,
+ buf->bpl, buf->bpl,
+ buf->vb.height >> 1);
+ break;
+ case V4L2_FIELD_SEQ_TB:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist,
+ 0, buf->bpl * (buf->vb.height >> 1),
+ buf->bpl, 0,
+ buf->vb.height >> 1);
+ break;
+ case V4L2_FIELD_SEQ_BT:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ dma->sglist,
+ buf->bpl * (buf->vb.height >> 1), 0,
+ buf->bpl, 0,
+ buf->vb.height >> 1);
+ break;
+ default:
+ BUG();
+ }
+ }
+ dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
+ buf, buf->vb.i,
+ fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
+ (unsigned long)buf->risc.dma);
+
+ buf->vb.state = VIDEOBUF_PREPARED;
+ return 0;
+
+ fail:
+ cx23885_free_buffer(q, buf);
+ return rc;
+}
+
+static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+{
+ struct cx23885_buffer *buf = container_of(vb,
+ struct cx23885_buffer, vb);
+ struct cx23885_buffer *prev;
+ struct cx23885_fh *fh = vq->priv_data;
+ struct cx23885_dev *dev = fh->dev;
+ struct cx23885_dmaqueue *q = &dev->vidq;
+
+ /* add jump to stopper */
+ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
+ buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
+ buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
+
+ if (!list_empty(&q->queued)) {
+ list_add_tail(&buf->vb.queue, &q->queued);
+ buf->vb.state = VIDEOBUF_QUEUED;
+ dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
+ buf, buf->vb.i);
+
+ } else if (list_empty(&q->active)) {
+ list_add_tail(&buf->vb.queue, &q->active);
+ cx23885_start_video_dma(dev, q, buf);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = q->count++;
+ mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+ dprintk(2, "[%p/%d] buffer_queue - first active\n",
+ buf, buf->vb.i);
+
+ } else {
+ prev = list_entry(q->active.prev, struct cx23885_buffer,
+ vb.queue);
+ if (prev->vb.width == buf->vb.width &&
+ prev->vb.height == buf->vb.height &&
+ prev->fmt == buf->fmt) {
+ list_add_tail(&buf->vb.queue, &q->active);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->count = q->count++;
+ prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+ /* 64 bit bits 63-32 */
+ prev->risc.jmp[2] = cpu_to_le32(0);
+ dprintk(2, "[%p/%d] buffer_queue - append to active\n",
+ buf, buf->vb.i);
+
+ } else {
+ list_add_tail(&buf->vb.queue, &q->queued);
+ buf->vb.state = VIDEOBUF_QUEUED;
+ dprintk(2, "[%p/%d] buffer_queue - first queued\n",
+ buf, buf->vb.i);
+ }
+ }
+}
+
+static void buffer_release(struct videobuf_queue *q,
+ struct videobuf_buffer *vb)
+{
+ struct cx23885_buffer *buf = container_of(vb,
+ struct cx23885_buffer, vb);
+
+ cx23885_free_buffer(q, buf);
+}
+
+static struct videobuf_queue_ops cx23885_video_qops = {
+ .buf_setup = buffer_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_queue = buffer_queue,
+ .buf_release = buffer_release,
+};
+
+static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
+{
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ return &fh->vidq;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ return &fh->vbiq;
+ default:
+ BUG();
+ return NULL;
+ }
+}
+
+static int get_resource(struct cx23885_fh *fh)
+{
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ return RESOURCE_VIDEO;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ return RESOURCE_VBI;
+ default:
+ BUG();
+ return 0;
+ }
+}
+
+static int video_open(struct inode *inode, struct file *file)
+{
+ int minor = iminor(inode);
+ struct cx23885_dev *h, *dev = NULL;
+ struct cx23885_fh *fh;
+ struct list_head *list;
+ enum v4l2_buf_type type = 0;
+ int radio = 0;
+
+ list_for_each(list, &cx23885_devlist) {
+ h = list_entry(list, struct cx23885_dev, devlist);
+ if (h->video_dev->minor == minor) {
+ dev = h;
+ type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ }
+ if (h->vbi_dev &&
+ h->vbi_dev->minor == minor) {
+ dev = h;
+ type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ }
+ if (h->radio_dev &&
+ h->radio_dev->minor == minor) {
+ radio = 1;
+ dev = h;
+ }
+ }
+ if (NULL == dev)
+ return -ENODEV;
+
+ dprintk(1, "open minor=%d radio=%d type=%s\n",
+ minor, radio, v4l2_type_names[type]);
+
+ /* allocate + initialize per filehandle data */
+ fh = kzalloc(sizeof(*fh), GFP_KERNEL);
+ if (NULL == fh)
+ return -ENOMEM;
+ file->private_data = fh;
+ fh->dev = dev;
+ fh->radio = radio;
+ fh->type = type;
+ fh->width = 320;
+ fh->height = 240;
+ fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
+
+ videobuf_queue_pci_init(&fh->vidq, &cx23885_video_qops,
+ dev->pci, &dev->slock,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ V4L2_FIELD_INTERLACED,
+ sizeof(struct cx23885_buffer),
+ fh);
+
+ dprintk(1, "post videobuf_queue_init()\n");
+
+
+ return 0;
+}
+
+static ssize_t video_read(struct file *file, char __user *data,
+ size_t count, loff_t *ppos)
+{
+ struct cx23885_fh *fh = file->private_data;
+
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (res_locked(fh->dev, RESOURCE_VIDEO))
+ return -EBUSY;
+ return videobuf_read_one(&fh->vidq, data, count, ppos,
+ file->f_flags & O_NONBLOCK);
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (!res_get(fh->dev, fh, RESOURCE_VBI))
+ return -EBUSY;
+ return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
+ file->f_flags & O_NONBLOCK);
+ default:
+ BUG();
+ return 0;
+ }
+}
+
+static unsigned int video_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct cx23885_fh *fh = file->private_data;
+ struct cx23885_buffer *buf;
+
+ if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
+ if (!res_get(fh->dev, fh, RESOURCE_VBI))
+ return POLLERR;
+ return videobuf_poll_stream(file, &fh->vbiq, wait);
+ }
+
+ if (res_check(fh, RESOURCE_VIDEO)) {
+ /* streaming capture */
+ if (list_empty(&fh->vidq.stream))
+ return POLLERR;
+ buf = list_entry(fh->vidq.stream.next,
+ struct cx23885_buffer, vb.stream);
+ } else {
+ /* read() capture */
+ buf = (struct cx23885_buffer *)fh->vidq.read_buf;
+ if (NULL == buf)
+ return POLLERR;
+ }
+ poll_wait(file, &buf->vb.done, wait);
+ if (buf->vb.state == VIDEOBUF_DONE ||
+ buf->vb.state == VIDEOBUF_ERROR)
+ return POLLIN|POLLRDNORM;
+ return 0;
+}
+
+static int video_release(struct inode *inode, struct file *file)
+{
+ struct cx23885_fh *fh = file->private_data;
+ struct cx23885_dev *dev = fh->dev;
+
+ /* turn off overlay */
+ if (res_check(fh, RESOURCE_OVERLAY)) {
+ /* FIXME */
+ res_free(dev, fh, RESOURCE_OVERLAY);
+ }
+
+ /* stop video capture */
+ if (res_check(fh, RESOURCE_VIDEO)) {
+ videobuf_queue_cancel(&fh->vidq);
+ res_free(dev, fh, RESOURCE_VIDEO);
+ }
+ if (fh->vidq.read_buf) {
+ buffer_release(&fh->vidq, fh->vidq.read_buf);
+ kfree(fh->vidq.read_buf);
+ }
+
+ /* stop vbi capture */
+ if (res_check(fh, RESOURCE_VBI)) {
+ if (fh->vbiq.streaming)
+ videobuf_streamoff(&fh->vbiq);
+ if (fh->vbiq.reading)
+ videobuf_read_stop(&fh->vbiq);
+ res_free(dev, fh, RESOURCE_VBI);
+ }
+
+ videobuf_mmap_free(&fh->vidq);
+ file->private_data = NULL;
+ kfree(fh);
+
+
+ return 0;
+}
+
+static int video_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct cx23885_fh *fh = file->private_data;
+
+ return videobuf_mmap_mapper(get_queue(fh), vma);
+}
+
+/* ------------------------------------------------------------------ */
+/* VIDEO CTRL IOCTLS */
+
+int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
+{
+ dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __FUNCTION__);
+ cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
+ return 0;
+}
+EXPORT_SYMBOL(cx23885_get_control);
+
+int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
+{
+ dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
+ " (disabled - no action)\n", __FUNCTION__);
+ return 0;
+}
+EXPORT_SYMBOL(cx23885_set_control);
+
+static void init_controls(struct cx23885_dev *dev)
+{
+ struct v4l2_control ctrl;
+ int i;
+
+ for (i = 0; i < CX23885_CTLS; i++) {
+ ctrl.id = cx23885_ctls[i].v.id;
+ ctrl.value = cx23885_ctls[i].v.default_value;
+
+ cx23885_set_control(dev, &ctrl);
+ }
+}
+
+/* ------------------------------------------------------------------ */
+/* VIDEO IOCTLS */
+
+static int vidioc_g_fmt_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx23885_fh *fh = priv;
+
+ f->fmt.pix.width = fh->width;
+ f->fmt.pix.height = fh->height;
+ f->fmt.pix.field = fh->vidq.field;
+ f->fmt.pix.pixelformat = fh->fmt->fourcc;
+ f->fmt.pix.bytesperline =
+ (f->fmt.pix.width * fh->fmt->depth) >> 3;
+ f->fmt.pix.sizeimage =
+ f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+ return 0;
+}
+
+static int vidioc_try_fmt_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+ struct cx23885_fmt *fmt;
+ enum v4l2_field field;
+ unsigned int maxw, maxh;
+
+ fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ if (NULL == fmt)
+ return -EINVAL;
+
+ field = f->fmt.pix.field;
+ maxw = norm_maxw(dev->tvnorm);
+ maxh = norm_maxh(dev->tvnorm);
+
+ if (V4L2_FIELD_ANY == field) {
+ field = (f->fmt.pix.height > maxh/2)
+ ? V4L2_FIELD_INTERLACED
+ : V4L2_FIELD_BOTTOM;
+ }
+
+ switch (field) {
+ case V4L2_FIELD_TOP:
+ case V4L2_FIELD_BOTTOM:
+ maxh = maxh / 2;
+ break;
+ case V4L2_FIELD_INTERLACED:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ f->fmt.pix.field = field;
+ if (f->fmt.pix.height < 32)
+ f->fmt.pix.height = 32;
+ if (f->fmt.pix.height > maxh)
+ f->fmt.pix.height = maxh;
+ if (f->fmt.pix.width < 48)
+ f->fmt.pix.width = 48;
+ if (f->fmt.pix.width > maxw)
+ f->fmt.pix.width = maxw;
+ f->fmt.pix.width &= ~0x03;
+ f->fmt.pix.bytesperline =
+ (f->fmt.pix.width * fmt->depth) >> 3;
+ f->fmt.pix.sizeimage =
+ f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+ return 0;
+}
+
+static int vidioc_s_fmt_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx23885_fh *fh = priv;
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+ int err;
+
+ dprintk(2, "%s()\n", __FUNCTION__);
+ err = vidioc_try_fmt_cap(file, priv, f);
+
+ if (0 != err)
+ return err;
+ fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ fh->width = f->fmt.pix.width;
+ fh->height = f->fmt.pix.height;
+ fh->vidq.field = f->fmt.pix.field;
+ dprintk(2, "%s() width=%d height=%d field=%d\n", __FUNCTION__,
+ fh->width, fh->height, fh->vidq.field);
+ cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
+ return 0;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ strcpy(cap->driver, "cx23885");
+ strlcpy(cap->card, cx23885_boards[dev->board].name,
+ sizeof(cap->card));
+ sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
+ cap->version = CX23885_VERSION_CODE;
+ cap->capabilities =
+ V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING |
+ V4L2_CAP_VBI_CAPTURE;
+ if (UNSET != dev->tuner_type)
+ cap->capabilities |= V4L2_CAP_TUNER;
+ return 0;
+}
+
+static int vidioc_enum_fmt_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ if (unlikely(f->index >= ARRAY_SIZE(formats)))
+ return -EINVAL;
+
+ strlcpy(f->description, formats[f->index].name,
+ sizeof(f->description));
+ f->pixelformat = formats[f->index].fourcc;
+
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+static int vidiocgmbuf(struct file *file, void *priv,
+ struct video_mbuf *mbuf)
+{
+ struct cx23885_fh *fh = priv;
+ struct videobuf_queue *q;
+ struct v4l2_requestbuffers req;
+ unsigned int i;
+ int err;
+
+ q = get_queue(fh);
+ memset(&req, 0, sizeof(req));
+ req.type = q->type;
+ req.count = 8;
+ req.memory = V4L2_MEMORY_MMAP;
+ err = videobuf_reqbufs(q, &req);
+ if (err < 0)
+ return err;
+
+ mbuf->frames = req.count;
+ mbuf->size = 0;
+ for (i = 0; i < mbuf->frames; i++) {
+ mbuf->offsets[i] = q->bufs[i]->boff;
+ mbuf->size += q->bufs[i]->bsize;
+ }
+ return 0;
+}
+#endif
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *p)
+{
+ struct cx23885_fh *fh = priv;
+ return (videobuf_reqbufs(get_queue(fh), p));
+}
+
+static int vidioc_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *p)
+{
+ struct cx23885_fh *fh = priv;
+ return (videobuf_querybuf(get_queue(fh), p));
+}
+
+static int vidioc_qbuf(struct file *file, void *priv,
+ struct v4l2_buffer *p)
+{
+ struct cx23885_fh *fh = priv;
+ return (videobuf_qbuf(get_queue(fh), p));
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv,
+ struct v4l2_buffer *p)
+{
+ struct cx23885_fh *fh = priv;
+ return (videobuf_dqbuf(get_queue(fh), p,
+ file->f_flags & O_NONBLOCK));
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type i)
+{
+ struct cx23885_fh *fh = priv;
+ struct cx23885_dev *dev = fh->dev;
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
+ return -EINVAL;
+ if (unlikely(i != fh->type))
+ return -EINVAL;
+
+ if (unlikely(!res_get(dev, fh, get_resource(fh))))
+ return -EBUSY;
+ return videobuf_streamon(get_queue(fh));
+}
+
+static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
+{
+ struct cx23885_fh *fh = priv;
+ struct cx23885_dev *dev = fh->dev;
+ int err, res;
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ if (i != fh->type)
+ return -EINVAL;
+
+ res = get_resource(fh);
+ err = videobuf_streamoff(get_queue(fh));
+ if (err < 0)
+ return err;
+ res_free(dev, fh, res);
+ return 0;
+}
+
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ mutex_lock(&dev->lock);
+ cx23885_set_tvnorm(dev, *tvnorms);
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
+{
+ static const char *iname[] = {
+ [CX23885_VMUX_COMPOSITE1] = "Composite1",
+ [CX23885_VMUX_COMPOSITE2] = "Composite2",
+ [CX23885_VMUX_COMPOSITE3] = "Composite3",
+ [CX23885_VMUX_COMPOSITE4] = "Composite4",
+ [CX23885_VMUX_SVIDEO] = "S-Video",
+ [CX23885_VMUX_TELEVISION] = "Television",
+ [CX23885_VMUX_CABLE] = "Cable TV",
+ [CX23885_VMUX_DVB] = "DVB",
+ [CX23885_VMUX_DEBUG] = "for debug only",
+ };
+ unsigned int n;
+ dprintk(1, "%s()\n", __FUNCTION__);
+
+ n = i->index;
+ if (n >= 4)
+ return -EINVAL;
+
+ if (0 == INPUT(n)->type)
+ return -EINVAL;
+
+ memset(i, 0, sizeof(*i));
+ i->index = n;
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ strcpy(i->name, iname[INPUT(n)->type]);
+ if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
+ (CX23885_VMUX_CABLE == INPUT(n)->type))
+ i->type = V4L2_INPUT_TYPE_TUNER;
+ i->std = CX23885_NORMS;
+ return 0;
+}
+EXPORT_SYMBOL(cx23885_enum_input);
+
+static int vidioc_enum_input(struct file *file, void *priv,
+ struct v4l2_input *i)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+ dprintk(1, "%s()\n", __FUNCTION__);
+ return cx23885_enum_input(dev, i);
+}
+
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ *i = dev->input;
+ dprintk(1, "%s() returns %d\n", __FUNCTION__, *i);
+ return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ dprintk(1, "%s(%d)\n", __FUNCTION__, i);
+
+ if (i >= 4) {
+ dprintk(1, "%s() -EINVAL\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ mutex_lock(&dev->lock);
+ cx23885_video_mux(dev, i);
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+static int vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qctrl)
+{
+ qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
+ if (unlikely(qctrl->id == 0))
+ return -EINVAL;
+ return cx23885_ctrl_query(qctrl);
+}
+
+static int vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctl)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ return cx23885_get_control(dev, ctl);
+}
+
+static int vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctl)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ return cx23885_set_control(dev, ctl);
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *t)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ if (unlikely(UNSET == dev->tuner_type))
+ return -EINVAL;
+ if (0 != t->index)
+ return -EINVAL;
+
+ strcpy(t->name, "Television");
+ t->type = V4L2_TUNER_ANALOG_TV;
+ t->capability = V4L2_TUNER_CAP_NORM;
+ t->rangehigh = 0xffffffffUL;
+ t->signal = 0xffff ; /* LOCKED */
+ return 0;
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *t)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ if (UNSET == dev->tuner_type)
+ return -EINVAL;
+ if (0 != t->index)
+ return -EINVAL;
+ return 0;
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct cx23885_fh *fh = priv;
+ struct cx23885_dev *dev = fh->dev;
+
+ if (unlikely(UNSET == dev->tuner_type))
+ return -EINVAL;
+
+ /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
+ f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ f->frequency = dev->freq;
+
+ cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
+
+ return 0;
+}
+
+int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
+{
+ if (unlikely(UNSET == dev->tuner_type))
+ return -EINVAL;
+ if (unlikely(f->tuner != 0))
+ return -EINVAL;
+
+ mutex_lock(&dev->lock);
+ dev->freq = f->frequency;
+
+ cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
+
+ /* When changing channels it is required to reset TVAUDIO */
+ msleep(10);
+
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+EXPORT_SYMBOL(cx23885_set_freq);
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct cx23885_fh *fh = priv;
+ struct cx23885_dev *dev = fh->dev;
+
+ if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
+ return -EINVAL;
+ if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
+ return -EINVAL;
+
+ return
+ cx23885_set_freq(dev, f);
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int vidioc_g_register(struct file *file, void *fh,
+ struct v4l2_register *reg)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
+
+ cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
+
+ return 0;
+}
+
+static int vidioc_s_register(struct file *file, void *fh,
+ struct v4l2_register *reg)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
+
+ cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
+ return 0;
+}
+#endif
+
+/* ----------------------------------------------------------- */
+/* RADIO ESPECIFIC IOCTLS */
+/* ----------------------------------------------------------- */
+
+static int radio_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ strcpy(cap->driver, "cx23885");
+ strlcpy(cap->card, cx23885_boards[dev->board].name,
+ sizeof(cap->card));
+ sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
+ cap->version = CX23885_VERSION_CODE;
+ cap->capabilities = V4L2_CAP_TUNER;
+ return 0;
+}
+
+static int radio_g_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *t)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ if (unlikely(t->index > 0))
+ return -EINVAL;
+
+ strcpy(t->name, "Radio");
+ t->type = V4L2_TUNER_RADIO;
+
+ cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_TUNER, t);
+ return 0;
+}
+
+static int radio_enum_input(struct file *file, void *priv,
+ struct v4l2_input *i)
+{
+ if (i->index != 0)
+ return -EINVAL;
+ strcpy(i->name, "Radio");
+ i->type = V4L2_INPUT_TYPE_TUNER;
+
+ return 0;
+}
+
+static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ if (unlikely(a->index))
+ return -EINVAL;
+
+ memset(a, 0, sizeof(*a));
+ strcpy(a->name, "Radio");
+ return 0;
+}
+
+/* FIXME: Should add a standard for radio */
+
+static int radio_s_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *t)
+{
+ struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
+
+ if (0 != t->index)
+ return -EINVAL;
+
+ cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_TUNER, t);
+
+ return 0;
+}
+
+static int radio_s_audio(struct file *file, void *fh,
+ struct v4l2_audio *a)
+{
+ return 0;
+}
+
+static int radio_s_input(struct file *file, void *fh, unsigned int i)
+{
+ return 0;
+}
+
+static int radio_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *c)
+{
+ int i;
+
+ if (c->id < V4L2_CID_BASE ||
+ c->id >= V4L2_CID_LASTP1)
+ return -EINVAL;
+ if (c->id == V4L2_CID_AUDIO_MUTE) {
+ for (i = 0; i < CX23885_CTLS; i++)
+ if (cx23885_ctls[i].v.id == c->id)
+ break;
+ *c = cx23885_ctls[i].v;
+ } else
+ *c = no_ctl;
+ return 0;
+}
+
+/* ----------------------------------------------------------- */
+
+static void cx23885_vid_timeout(unsigned long data)
+{
+ struct cx23885_dev *dev = (struct cx23885_dev *)data;
+ struct cx23885_dmaqueue *q = &dev->vidq;
+ struct cx23885_buffer *buf;
+ unsigned long flags;
+
+ cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
+
+ cx_clear(VID_A_DMA_CTL, 0x11);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ while (!list_empty(&q->active)) {
+ buf = list_entry(q->active.next,
+ struct cx23885_buffer, vb.queue);
+ list_del(&buf->vb.queue);
+ buf->vb.state = VIDEOBUF_ERROR;
+ wake_up(&buf->vb.done);
+ printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
+ dev->name, buf, buf->vb.i,
+ (unsigned long)buf->risc.dma);
+ }
+ cx23885_restart_video_queue(dev, q);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
+{
+ u32 mask, count;
+ int handled = 0;
+
+ mask = cx_read(VID_A_INT_MSK);
+ if (0 == (status & mask))
+ return handled;
+ cx_write(VID_A_INT_STAT, status);
+
+ dprintk(2, "%s() status = 0x%08x\n", __FUNCTION__, status);
+ /* risc op code error */
+ if (status & (1 << 16)) {
+ printk(KERN_WARNING "%s/0: video risc op code error\n",
+ dev->name);
+ cx_clear(VID_A_DMA_CTL, 0x11);
+ cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
+ }
+
+ /* risc1 y */
+ if (status & 0x01) {
+ spin_lock(&dev->slock);
+ count = cx_read(VID_A_GPCNT);
+ cx23885_video_wakeup(dev, &dev->vidq, count);
+ spin_unlock(&dev->slock);
+ handled++;
+ }
+ /* risc2 y */
+ if (status & 0x10) {
+ dprintk(2, "stopper video\n");
+ spin_lock(&dev->slock);
+ cx23885_restart_video_queue(dev, &dev->vidq);
+ spin_unlock(&dev->slock);
+ handled++;
+ }
+
+ return handled;
+}
+
+
+/* ----------------------------------------------------------- */
+/* exported stuff */
+
+static const struct file_operations video_fops = {
+ .owner = THIS_MODULE,
+ .open = video_open,
+ .release = video_release,
+ .read = video_read,
+ .poll = video_poll,
+ .mmap = video_mmap,
+ .ioctl = video_ioctl2,
+ .compat_ioctl = v4l_compat_ioctl32,
+ .llseek = no_llseek,
+};
+
+static struct video_device cx23885_vbi_template;
+static struct video_device cx23885_video_template = {
+ .name = "cx23885-video",
+ .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES,
+ .fops = &video_fops,
+ .minor = -1,
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
+ .vidioc_g_fmt_cap = vidioc_g_fmt_cap,
+ .vidioc_try_fmt_cap = vidioc_try_fmt_cap,
+ .vidioc_s_fmt_cap = vidioc_s_fmt_cap,
+ .vidioc_g_fmt_vbi = cx23885_vbi_fmt,
+ .vidioc_try_fmt_vbi = cx23885_vbi_fmt,
+ .vidioc_s_fmt_vbi = cx23885_vbi_fmt,
+ .vidioc_reqbufs = vidioc_reqbufs,
+ .vidioc_querybuf = vidioc_querybuf,
+ .vidioc_qbuf = vidioc_qbuf,
+ .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_s_std = vidioc_s_std,
+ .vidioc_enum_input = vidioc_enum_input,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+ .vidioc_streamon = vidioc_streamon,
+ .vidioc_streamoff = vidioc_streamoff,
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+ .vidiocgmbuf = vidiocgmbuf,
+#endif
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = vidioc_g_register,
+ .vidioc_s_register = vidioc_s_register,
+#endif
+ .tvnorms = CX23885_NORMS,
+ .current_norm = V4L2_STD_NTSC_M,
+};
+
+static const struct file_operations radio_fops = {
+ .owner = THIS_MODULE,
+ .open = video_open,
+ .release = video_release,
+ .ioctl = video_ioctl2,
+ .compat_ioctl = v4l_compat_ioctl32,
+ .llseek = no_llseek,
+};
+
+
+void cx23885_video_unregister(struct cx23885_dev *dev)
+{
+ dprintk(1, "%s()\n", __FUNCTION__);
+ cx_clear(PCI_INT_MSK, 1);
+
+ if (dev->video_dev) {
+ if (-1 != dev->video_dev->minor)
+ video_unregister_device(dev->video_dev);
+ else
+ video_device_release(dev->video_dev);
+ dev->video_dev = NULL;
+
+ btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
+ }
+}
+
+int cx23885_video_register(struct cx23885_dev *dev)
+{
+ int err;
+
+ dprintk(1, "%s()\n", __FUNCTION__);
+ spin_lock_init(&dev->slock);
+
+ /* Initialize VBI template */
+ memcpy(&cx23885_vbi_template, &cx23885_video_template,
+ sizeof(cx23885_vbi_template));
+ strcpy(cx23885_vbi_template.name, "cx23885-vbi");
+ cx23885_vbi_template.type = VID_TYPE_TELETEXT|VID_TYPE_TUNER;
+
+ dev->tvnorm = cx23885_video_template.current_norm;
+
+ /* init video dma queues */
+ INIT_LIST_HEAD(&dev->vidq.active);
+ INIT_LIST_HEAD(&dev->vidq.queued);
+ dev->vidq.timeout.function = cx23885_vid_timeout;
+ dev->vidq.timeout.data = (unsigned long)dev;
+ init_timer(&dev->vidq.timeout);
+ cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
+ VID_A_DMA_CTL, 0x11, 0x00);
+
+ cx_set(PCI_INT_MSK, 1);
+
+
+ /* register v4l devices */
+ dev->video_dev = cx23885_vdev_init(dev, dev->pci,
+ &cx23885_video_template, "video");
+ err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
+ video_nr[dev->nr]);
+ if (err < 0) {
+ printk(KERN_INFO "%s: can't register video device\n",
+ dev->name);
+ goto fail_unreg;
+ }
+ printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
+ dev->name, dev->video_dev->minor & 0x1f);
+ /* initial device configuration */
+ mutex_lock(&dev->lock);
+ cx23885_set_tvnorm(dev, dev->tvnorm);
+ init_controls(dev);
+ cx23885_video_mux(dev, 0);
+ mutex_unlock(&dev->lock);
+
+ /* FIXME start tvaudio thread */
+
+ return 0;
+
+fail_unreg:
+ cx23885_video_unregister(dev);
+ return err;
+}
+
projects / linux-2.6 / commitdiff