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linux/linux-5.4.31/drivers/media/pci/cx23885/cx23885-video.c

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2024-01-30 10:43:28 +00:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for the Conexant CX23885 PCIe bridge
*
* Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
*/
#include "cx23885.h"
#include "cx23885-video.h"
#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 <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-event.h>
#include "cx23885-ioctl.h"
#include "tuner-xc2028.h"
#include <media/drv-intf/cx25840.h>
MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
MODULE_LICENSE("GPL");
/* ------------------------------------------------------------------ */
static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
module_param_array(video_nr, int, NULL, 0444);
module_param_array(vbi_nr, int, NULL, 0444);
MODULE_PARM_DESC(video_nr, "video device numbers");
MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
static unsigned int video_debug;
module_param(video_debug, int, 0644);
MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
static unsigned int irq_debug;
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...)\
do { if (video_debug >= level)\
printk(KERN_DEBUG pr_fmt("%s: video:" fmt), \
__func__, ##arg); \
} while (0)
/* ------------------------------------------------------------------- */
/* static data */
#define FORMAT_FLAGS_PACKED 0x01
static struct cx23885_fmt formats[] = {
{
.fourcc = V4L2_PIX_FMT_YUYV,
.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;
return NULL;
}
/* ------------------------------------------------------------------- */
void cx23885_video_wakeup(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q, u32 count)
{
struct cx23885_buffer *buf;
if (list_empty(&q->active))
return;
buf = list_entry(q->active.next,
struct cx23885_buffer, queue);
buf->vb.sequence = q->count++;
buf->vb.vb2_buf.timestamp = ktime_get_ns();
dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf,
buf->vb.vb2_buf.index, count, q->count);
list_del(&buf->queue);
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
}
int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
{
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
.format.code = MEDIA_BUS_FMT_FIXED,
};
dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
__func__,
(unsigned int)norm,
v4l2_norm_to_name(norm));
if (dev->tvnorm == norm)
return 0;
if (dev->tvnorm != norm) {
if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
vb2_is_busy(&dev->vb2_mpegq))
return -EBUSY;
}
dev->tvnorm = norm;
dev->width = 720;
dev->height = norm_maxh(norm);
dev->field = V4L2_FIELD_INTERLACED;
call_all(dev, video, s_std, norm);
format.format.width = dev->width;
format.format.height = dev->height;
format.format.field = dev->field;
call_all(dev, pad, set_fmt, NULL, &format);
return 0;
}
static 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", __func__);
vfd = video_device_alloc();
if (NULL == vfd)
return NULL;
*vfd = *template;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->release = video_device_release;
vfd->lock = &dev->lock;
snprintf(vfd->name, sizeof(vfd->name), "%s (%s)",
cx23885_boards[dev->board].name, type);
video_set_drvdata(vfd, dev);
return vfd;
}
int cx23885_flatiron_write(struct cx23885_dev *dev, u8 reg, u8 data)
{
/* 8 bit registers, 8 bit values */
u8 buf[] = { reg, data };
struct i2c_msg msg = { .addr = 0x98 >> 1,
.flags = 0, .buf = buf, .len = 2 };
return i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg, 1);
}
u8 cx23885_flatiron_read(struct cx23885_dev *dev, u8 reg)
{
/* 8 bit registers, 8 bit values */
int ret;
u8 b0[] = { reg };
u8 b1[] = { 0 };
struct i2c_msg msg[] = {
{ .addr = 0x98 >> 1, .flags = 0, .buf = b0, .len = 1 },
{ .addr = 0x98 >> 1, .flags = I2C_M_RD, .buf = b1, .len = 1 }
};
ret = i2c_transfer(&dev->i2c_bus[2].i2c_adap, &msg[0], 2);
if (ret != 2)
pr_err("%s() error\n", __func__);
return b1[0];
}
static void cx23885_flatiron_dump(struct cx23885_dev *dev)
{
int i;
dprintk(1, "Flatiron dump\n");
for (i = 0; i < 0x24; i++) {
dprintk(1, "FI[%02x] = %02x\n", i,
cx23885_flatiron_read(dev, i));
}
}
static int cx23885_flatiron_mux(struct cx23885_dev *dev, int input)
{
u8 val;
dprintk(1, "%s(input = %d)\n", __func__, input);
if (input == 1)
val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) & ~FLD_CH_SEL;
else if (input == 2)
val = cx23885_flatiron_read(dev, CH_PWR_CTRL1) | FLD_CH_SEL;
else
return -EINVAL;
val |= 0x20; /* Enable clock to delta-sigma and dec filter */
cx23885_flatiron_write(dev, CH_PWR_CTRL1, val);
/* Wake up */
cx23885_flatiron_write(dev, CH_PWR_CTRL2, 0);
if (video_debug)
cx23885_flatiron_dump(dev);
return 0;
}
static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
{
dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
__func__,
input, INPUT(input)->vmux,
INPUT(input)->gpio0, INPUT(input)->gpio1,
INPUT(input)->gpio2, INPUT(input)->gpio3);
dev->input = input;
if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2 ||
dev->board == CX23885_BOARD_MYGICA_X8507) {
/* Select Analog TV */
if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
cx23885_gpio_clear(dev, GPIO_0);
}
/* Tell the internal A/V decoder */
v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
INPUT(input)->vmux, 0, 0);
if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) ||
(dev->board == CX23885_BOARD_MPX885) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_IMPACTVCBE) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1265_K4) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
(dev->board == CX23885_BOARD_MYGICA_X8507) ||
(dev->board == CX23885_BOARD_AVERMEDIA_HC81R) ||
(dev->board == CX23885_BOARD_VIEWCAST_260E) ||
(dev->board == CX23885_BOARD_VIEWCAST_460E) ||
(dev->board == CX23885_BOARD_AVERMEDIA_CE310B)) {
/* Configure audio routing */
v4l2_subdev_call(dev->sd_cx25840, audio, s_routing,
INPUT(input)->amux, 0, 0);
if (INPUT(input)->amux == CX25840_AUDIO7)
cx23885_flatiron_mux(dev, 1);
else if (INPUT(input)->amux == CX25840_AUDIO6)
cx23885_flatiron_mux(dev, 2);
}
return 0;
}
static int cx23885_audio_mux(struct cx23885_dev *dev, unsigned int input)
{
dprintk(1, "%s(input=%d)\n", __func__, input);
/* The baseband video core of the cx23885 has two audio inputs.
* LR1 and LR2. In almost every single case so far only HVR1xxx
* cards we've only ever supported LR1. Time to support LR2,
* which is available via the optional white breakout header on
* the board.
* We'll use a could of existing enums in the card struct to allow
* devs to specify which baseband input they need, or just default
* to what we've always used.
*/
if (INPUT(input)->amux == CX25840_AUDIO7)
cx23885_flatiron_mux(dev, 1);
else if (INPUT(input)->amux == CX25840_AUDIO6)
cx23885_flatiron_mux(dev, 2);
else {
/* Not specifically defined, assume the default. */
cx23885_flatiron_mux(dev, 1);
}
return 0;
}
/* ------------------------------------------------------------------ */
static int cx23885_start_video_dma(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q,
struct cx23885_buffer *buf)
{
dprintk(1, "%s()\n", __func__);
/* Stop the dma/fifo before we tamper with it's risc programs */
cx_clear(VID_A_DMA_CTL, 0x11);
/* setup fifo + format */
cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
buf->bpl, buf->risc.dma);
/* reset counter */
cx_write(VID_A_GPCNT_CTL, 3);
q->count = 0;
/* enable irq */
cx23885_irq_add_enable(dev, 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;
}
static int queue_setup(struct vb2_queue *q,
unsigned int *num_buffers, unsigned int *num_planes,
unsigned int sizes[], struct device *alloc_devs[])
{
struct cx23885_dev *dev = q->drv_priv;
*num_planes = 1;
sizes[0] = (dev->fmt->depth * dev->width * dev->height) >> 3;
return 0;
}
static int buffer_prepare(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
struct cx23885_buffer *buf =
container_of(vbuf, struct cx23885_buffer, vb);
u32 line0_offset, line1_offset;
struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
int field_tff;
buf->bpl = (dev->width * dev->fmt->depth) >> 3;
if (vb2_plane_size(vb, 0) < dev->height * buf->bpl)
return -EINVAL;
vb2_set_plane_payload(vb, 0, dev->height * buf->bpl);
switch (dev->field) {
case V4L2_FIELD_TOP:
cx23885_risc_buffer(dev->pci, &buf->risc,
sgt->sgl, 0, UNSET,
buf->bpl, 0, dev->height);
break;
case V4L2_FIELD_BOTTOM:
cx23885_risc_buffer(dev->pci, &buf->risc,
sgt->sgl, UNSET, 0,
buf->bpl, 0, dev->height);
break;
case V4L2_FIELD_INTERLACED:
if (dev->tvnorm & V4L2_STD_525_60)
/* NTSC or */
field_tff = 1;
else
field_tff = 0;
if (cx23885_boards[dev->board].force_bff)
/* PAL / SECAM OR 888 in NTSC MODE */
field_tff = 0;
if (field_tff) {
/* cx25840 transmits NTSC bottom field first */
dprintk(1, "%s() Creating TFF/NTSC risc\n",
__func__);
line0_offset = buf->bpl;
line1_offset = 0;
} else {
/* All other formats are top field first */
dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n",
__func__);
line0_offset = 0;
line1_offset = buf->bpl;
}
cx23885_risc_buffer(dev->pci, &buf->risc,
sgt->sgl, line0_offset,
line1_offset,
buf->bpl, buf->bpl,
dev->height >> 1);
break;
case V4L2_FIELD_SEQ_TB:
cx23885_risc_buffer(dev->pci, &buf->risc,
sgt->sgl,
0, buf->bpl * (dev->height >> 1),
buf->bpl, 0,
dev->height >> 1);
break;
case V4L2_FIELD_SEQ_BT:
cx23885_risc_buffer(dev->pci, &buf->risc,
sgt->sgl,
buf->bpl * (dev->height >> 1), 0,
buf->bpl, 0,
dev->height >> 1);
break;
default:
BUG();
}
dprintk(2, "[%p/%d] buffer_init - %dx%d %dbpp 0x%08x - dma=0x%08lx\n",
buf, buf->vb.vb2_buf.index,
dev->width, dev->height, dev->fmt->depth, dev->fmt->fourcc,
(unsigned long)buf->risc.dma);
return 0;
}
static void buffer_finish(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct cx23885_buffer *buf = container_of(vbuf,
struct cx23885_buffer, vb);
cx23885_free_buffer(vb->vb2_queue->drv_priv, buf);
}
/*
* The risc program for each buffer works as follows: it starts with a simple
* 'JUMP to addr + 12', which is effectively a NOP. Then the code to DMA the
* buffer follows and at the end we have a JUMP back to the start + 12 (skipping
* the initial JUMP).
*
* This is the risc program of the first buffer to be queued if the active list
* is empty and it just keeps DMAing this buffer without generating any
* interrupts.
*
* If a new buffer is added then the initial JUMP in the code for that buffer
* will generate an interrupt which signals that the previous buffer has been
* DMAed successfully and that it can be returned to userspace.
*
* It also sets the final jump of the previous buffer to the start of the new
* buffer, thus chaining the new buffer into the DMA chain. This is a single
* atomic u32 write, so there is no race condition.
*
* The end-result of all this that you only get an interrupt when a buffer
* is ready, so the control flow is very easy.
*/
static void buffer_queue(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
struct cx23885_buffer *buf = container_of(vbuf,
struct cx23885_buffer, vb);
struct cx23885_buffer *prev;
struct cx23885_dmaqueue *q = &dev->vidq;
unsigned long flags;
/* add jump to start */
buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12);
buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12);
buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
spin_lock_irqsave(&dev->slock, flags);
if (list_empty(&q->active)) {
list_add_tail(&buf->queue, &q->active);
dprintk(2, "[%p/%d] buffer_queue - first active\n",
buf, buf->vb.vb2_buf.index);
} else {
buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
prev = list_entry(q->active.prev, struct cx23885_buffer,
queue);
list_add_tail(&buf->queue, &q->active);
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
dprintk(2, "[%p/%d] buffer_queue - append to active\n",
buf, buf->vb.vb2_buf.index);
}
spin_unlock_irqrestore(&dev->slock, flags);
}
static int cx23885_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct cx23885_dev *dev = q->drv_priv;
struct cx23885_dmaqueue *dmaq = &dev->vidq;
struct cx23885_buffer *buf = list_entry(dmaq->active.next,
struct cx23885_buffer, queue);
cx23885_start_video_dma(dev, dmaq, buf);
return 0;
}
static void cx23885_stop_streaming(struct vb2_queue *q)
{
struct cx23885_dev *dev = q->drv_priv;
struct cx23885_dmaqueue *dmaq = &dev->vidq;
unsigned long flags;
cx_clear(VID_A_DMA_CTL, 0x11);
spin_lock_irqsave(&dev->slock, flags);
while (!list_empty(&dmaq->active)) {
struct cx23885_buffer *buf = list_entry(dmaq->active.next,
struct cx23885_buffer, queue);
list_del(&buf->queue);
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
}
spin_unlock_irqrestore(&dev->slock, flags);
}
static const struct vb2_ops cx23885_video_qops = {
.queue_setup = queue_setup,
.buf_prepare = buffer_prepare,
.buf_finish = buffer_finish,
.buf_queue = buffer_queue,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
.start_streaming = cx23885_start_streaming,
.stop_streaming = cx23885_stop_streaming,
};
/* ------------------------------------------------------------------ */
/* VIDEO IOCTLS */
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct cx23885_dev *dev = video_drvdata(file);
f->fmt.pix.width = dev->width;
f->fmt.pix.height = dev->height;
f->fmt.pix.field = dev->field;
f->fmt.pix.pixelformat = dev->fmt->fourcc;
f->fmt.pix.bytesperline =
(f->fmt.pix.width * dev->fmt->depth) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct cx23885_dev *dev = video_drvdata(file);
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 = 720;
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:
case V4L2_FIELD_SEQ_TB:
case V4L2_FIELD_SEQ_BT:
break;
default:
field = V4L2_FIELD_INTERLACED;
break;
}
f->fmt.pix.field = field;
v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
&f->fmt.pix.height, 32, maxh, 0, 0);
f->fmt.pix.bytesperline =
(f->fmt.pix.width * fmt->depth) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct cx23885_dev *dev = video_drvdata(file);
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
int err;
dprintk(2, "%s()\n", __func__);
err = vidioc_try_fmt_vid_cap(file, priv, f);
if (0 != err)
return err;
if (vb2_is_busy(&dev->vb2_vidq) || vb2_is_busy(&dev->vb2_vbiq) ||
vb2_is_busy(&dev->vb2_mpegq))
return -EBUSY;
dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
dev->width = f->fmt.pix.width;
dev->height = f->fmt.pix.height;
dev->field = f->fmt.pix.field;
dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
dev->width, dev->height, dev->field);
v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED);
call_all(dev, pad, set_fmt, NULL, &format);
v4l2_fill_pix_format(&f->fmt.pix, &format.format);
/* set_fmt overwrites f->fmt.pix.field, restore it */
f->fmt.pix.field = dev->field;
return 0;
}
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct cx23885_dev *dev = video_drvdata(file);
strscpy(cap->driver, "cx23885", sizeof(cap->driver));
strscpy(cap->card, cx23885_boards[dev->board].name,
sizeof(cap->card));
sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
V4L2_CAP_AUDIO | V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_DEVICE_CAPS;
if (dev->tuner_type != TUNER_ABSENT)
cap->capabilities |= V4L2_CAP_TUNER;
return 0;
}
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
if (unlikely(f->index >= ARRAY_SIZE(formats)))
return -EINVAL;
f->pixelformat = formats[f->index].fourcc;
return 0;
}
static int vidioc_g_pixelaspect(struct file *file, void *priv,
int type, struct v4l2_fract *f)
{
struct cx23885_dev *dev = video_drvdata(file);
bool is_50hz = dev->tvnorm & V4L2_STD_625_50;
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
f->numerator = is_50hz ? 54 : 11;
f->denominator = is_50hz ? 59 : 10;
return 0;
}
static int vidioc_g_selection(struct file *file, void *fh,
struct v4l2_selection *sel)
{
struct cx23885_dev *dev = video_drvdata(file);
if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
switch (sel->target) {
case V4L2_SEL_TGT_CROP_BOUNDS:
case V4L2_SEL_TGT_CROP_DEFAULT:
sel->r.top = 0;
sel->r.left = 0;
sel->r.width = 720;
sel->r.height = norm_maxh(dev->tvnorm);
break;
default:
return -EINVAL;
}
return 0;
}
static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
struct cx23885_dev *dev = video_drvdata(file);
dprintk(1, "%s()\n", __func__);
*id = dev->tvnorm;
return 0;
}
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id tvnorms)
{
struct cx23885_dev *dev = video_drvdata(file);
dprintk(1, "%s()\n", __func__);
return cx23885_set_tvnorm(dev, tvnorms);
}
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_COMPONENT] = "Component",
[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", __func__);
n = i->index;
if (n >= MAX_CX23885_INPUT)
return -EINVAL;
if (0 == INPUT(n)->type)
return -EINVAL;
i->index = n;
i->type = V4L2_INPUT_TYPE_CAMERA;
strscpy(i->name, iname[INPUT(n)->type], sizeof(i->name));
i->std = CX23885_NORMS;
if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
(CX23885_VMUX_CABLE == INPUT(n)->type)) {
i->type = V4L2_INPUT_TYPE_TUNER;
i->audioset = 4;
} else {
/* Two selectable audio inputs for non-tv inputs */
i->audioset = 3;
}
if (dev->input == n) {
/* enum'd input matches our configured input.
* Ask the video decoder to process the call
* and give it an oppertunity to update the
* status field.
*/
call_all(dev, video, g_input_status, &i->status);
}
return 0;
}
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
struct cx23885_dev *dev = video_drvdata(file);
dprintk(1, "%s()\n", __func__);
return cx23885_enum_input(dev, i);
}
int cx23885_get_input(struct file *file, void *priv, unsigned int *i)
{
struct cx23885_dev *dev = video_drvdata(file);
*i = dev->input;
dprintk(1, "%s() returns %d\n", __func__, *i);
return 0;
}
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
{
return cx23885_get_input(file, priv, i);
}
int cx23885_set_input(struct file *file, void *priv, unsigned int i)
{
struct cx23885_dev *dev = video_drvdata(file);
dprintk(1, "%s(%d)\n", __func__, i);
if (i >= MAX_CX23885_INPUT) {
dprintk(1, "%s() -EINVAL\n", __func__);
return -EINVAL;
}
if (INPUT(i)->type == 0)
return -EINVAL;
cx23885_video_mux(dev, i);
/* By default establish the default audio input for the card also */
/* Caller is free to use VIDIOC_S_AUDIO to override afterwards */
cx23885_audio_mux(dev, i);
return 0;
}
static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
{
return cx23885_set_input(file, priv, i);
}
static int vidioc_log_status(struct file *file, void *priv)
{
struct cx23885_dev *dev = video_drvdata(file);
call_all(dev, core, log_status);
return 0;
}
static int cx23885_query_audinput(struct file *file, void *priv,
struct v4l2_audio *i)
{
static const char *iname[] = {
[0] = "Baseband L/R 1",
[1] = "Baseband L/R 2",
[2] = "TV",
};
unsigned int n;
dprintk(1, "%s()\n", __func__);
n = i->index;
if (n >= 3)
return -EINVAL;
memset(i, 0, sizeof(*i));
i->index = n;
strscpy(i->name, iname[n], sizeof(i->name));
i->capability = V4L2_AUDCAP_STEREO;
return 0;
}
static int vidioc_enum_audinput(struct file *file, void *priv,
struct v4l2_audio *i)
{
return cx23885_query_audinput(file, priv, i);
}
static int vidioc_g_audinput(struct file *file, void *priv,
struct v4l2_audio *i)
{
struct cx23885_dev *dev = video_drvdata(file);
if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
(CX23885_VMUX_CABLE == INPUT(dev->input)->type))
i->index = 2;
else
i->index = dev->audinput;
dprintk(1, "%s(input=%d)\n", __func__, i->index);
return cx23885_query_audinput(file, priv, i);
}
static int vidioc_s_audinput(struct file *file, void *priv,
const struct v4l2_audio *i)
{
struct cx23885_dev *dev = video_drvdata(file);
if ((CX23885_VMUX_TELEVISION == INPUT(dev->input)->type) ||
(CX23885_VMUX_CABLE == INPUT(dev->input)->type)) {
return i->index != 2 ? -EINVAL : 0;
}
if (i->index > 1)
return -EINVAL;
dprintk(1, "%s(%d)\n", __func__, i->index);
dev->audinput = i->index;
/* Skip the audio defaults from the cards struct, caller wants
* directly touch the audio mux hardware. */
cx23885_flatiron_mux(dev, dev->audinput + 1);
return 0;
}
static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct cx23885_dev *dev = video_drvdata(file);
if (dev->tuner_type == TUNER_ABSENT)
return -EINVAL;
if (0 != t->index)
return -EINVAL;
strscpy(t->name, "Television", sizeof(t->name));
call_all(dev, tuner, g_tuner, t);
return 0;
}
static int vidioc_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *t)
{
struct cx23885_dev *dev = video_drvdata(file);
if (dev->tuner_type == TUNER_ABSENT)
return -EINVAL;
if (0 != t->index)
return -EINVAL;
/* Update the A/V core */
call_all(dev, tuner, s_tuner, t);
return 0;
}
static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct cx23885_dev *dev = video_drvdata(file);
if (dev->tuner_type == TUNER_ABSENT)
return -EINVAL;
f->type = V4L2_TUNER_ANALOG_TV;
f->frequency = dev->freq;
call_all(dev, tuner, g_frequency, f);
return 0;
}
static int cx23885_set_freq(struct cx23885_dev *dev, const struct v4l2_frequency *f)
{
struct v4l2_ctrl *mute;
int old_mute_val = 1;
if (dev->tuner_type == TUNER_ABSENT)
return -EINVAL;
if (unlikely(f->tuner != 0))
return -EINVAL;
dev->freq = f->frequency;
/* I need to mute audio here */
mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
if (mute) {
old_mute_val = v4l2_ctrl_g_ctrl(mute);
if (!old_mute_val)
v4l2_ctrl_s_ctrl(mute, 1);
}
call_all(dev, tuner, s_frequency, f);
/* When changing channels it is required to reset TVAUDIO */
msleep(100);
/* I need to unmute audio here */
if (old_mute_val == 0)
v4l2_ctrl_s_ctrl(mute, old_mute_val);
return 0;
}
static int cx23885_set_freq_via_ops(struct cx23885_dev *dev,
const struct v4l2_frequency *f)
{
struct v4l2_ctrl *mute;
int old_mute_val = 1;
struct vb2_dvb_frontend *vfe;
struct dvb_frontend *fe;
struct analog_parameters params = {
.mode = V4L2_TUNER_ANALOG_TV,
.audmode = V4L2_TUNER_MODE_STEREO,
.std = dev->tvnorm,
.frequency = f->frequency
};
dev->freq = f->frequency;
/* I need to mute audio here */
mute = v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_AUDIO_MUTE);
if (mute) {
old_mute_val = v4l2_ctrl_g_ctrl(mute);
if (!old_mute_val)
v4l2_ctrl_s_ctrl(mute, 1);
}
/* If HVR1850 */
dprintk(1, "%s() frequency=%d tuner=%d std=0x%llx\n", __func__,
params.frequency, f->tuner, params.std);
vfe = vb2_dvb_get_frontend(&dev->ts2.frontends, 1);
if (!vfe) {
return -EINVAL;
}
fe = vfe->dvb.frontend;
if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) ||
(dev->board == CX23885_BOARD_HAUPPAUGE_HVR1265_K4))
fe = &dev->ts1.analog_fe;
if (fe && fe->ops.tuner_ops.set_analog_params) {
call_all(dev, video, s_std, dev->tvnorm);
fe->ops.tuner_ops.set_analog_params(fe, &params);
}
else
pr_err("%s() No analog tuner, aborting\n", __func__);
/* When changing channels it is required to reset TVAUDIO */
msleep(100);
/* I need to unmute audio here */
if (old_mute_val == 0)
v4l2_ctrl_s_ctrl(mute, old_mute_val);
return 0;
}
int cx23885_set_frequency(struct file *file, void *priv,
const struct v4l2_frequency *f)
{
struct cx23885_dev *dev = video_drvdata(file);
int ret;
switch (dev->board) {
case CX23885_BOARD_HAUPPAUGE_HVR1255:
case CX23885_BOARD_HAUPPAUGE_HVR1255_22111:
case CX23885_BOARD_HAUPPAUGE_HVR1265_K4:
case CX23885_BOARD_HAUPPAUGE_HVR1850:
ret = cx23885_set_freq_via_ops(dev, f);
break;
default:
ret = cx23885_set_freq(dev, f);
}
return ret;
}
static int vidioc_s_frequency(struct file *file, void *priv,
const struct v4l2_frequency *f)
{
return cx23885_set_frequency(file, priv, f);
}
/* ----------------------------------------------------------- */
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);
/* risc op code error, fifo overflow or line sync detection error */
if ((status & VID_BC_MSK_OPC_ERR) ||
(status & VID_BC_MSK_SYNC) ||
(status & VID_BC_MSK_OF)) {
if (status & VID_BC_MSK_OPC_ERR) {
dprintk(7, " (VID_BC_MSK_OPC_ERR 0x%08x)\n",
VID_BC_MSK_OPC_ERR);
pr_warn("%s: video risc op code error\n",
dev->name);
cx23885_sram_channel_dump(dev,
&dev->sram_channels[SRAM_CH01]);
}
if (status & VID_BC_MSK_SYNC)
dprintk(7, " (VID_BC_MSK_SYNC 0x%08x) video lines miss-match\n",
VID_BC_MSK_SYNC);
if (status & VID_BC_MSK_OF)
dprintk(7, " (VID_BC_MSK_OF 0x%08x) fifo overflow\n",
VID_BC_MSK_OF);
}
/* Video */
if (status & VID_BC_MSK_RISCI1) {
spin_lock(&dev->slock);
count = cx_read(VID_A_GPCNT);
cx23885_video_wakeup(dev, &dev->vidq, count);
spin_unlock(&dev->slock);
handled++;
}
/* Allow the VBI framework to process it's payload */
handled += cx23885_vbi_irq(dev, status);
return handled;
}
/* ----------------------------------------------------------- */
/* exported stuff */
static const struct v4l2_file_operations video_fops = {
.owner = THIS_MODULE,
.open = v4l2_fh_open,
.release = vb2_fop_release,
.read = vb2_fop_read,
.poll = vb2_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = vb2_fop_mmap,
};
static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_g_pixelaspect = vidioc_g_pixelaspect,
.vidioc_g_selection = vidioc_g_selection,
.vidioc_s_std = vidioc_s_std,
.vidioc_g_std = vidioc_g_std,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
.vidioc_log_status = vidioc_log_status,
.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_chip_info = cx23885_g_chip_info,
.vidioc_g_register = cx23885_g_register,
.vidioc_s_register = cx23885_s_register,
#endif
.vidioc_enumaudio = vidioc_enum_audinput,
.vidioc_g_audio = vidioc_g_audinput,
.vidioc_s_audio = vidioc_s_audinput,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static struct video_device cx23885_vbi_template;
static struct video_device cx23885_video_template = {
.name = "cx23885-video",
.fops = &video_fops,
.ioctl_ops = &video_ioctl_ops,
.tvnorms = CX23885_NORMS,
};
void cx23885_video_unregister(struct cx23885_dev *dev)
{
dprintk(1, "%s()\n", __func__);
cx23885_irq_remove(dev, 0x01);
if (dev->vbi_dev) {
if (video_is_registered(dev->vbi_dev))
video_unregister_device(dev->vbi_dev);
else
video_device_release(dev->vbi_dev);
dev->vbi_dev = NULL;
}
if (dev->video_dev) {
if (video_is_registered(dev->video_dev))
video_unregister_device(dev->video_dev);
else
video_device_release(dev->video_dev);
dev->video_dev = NULL;
}
if (dev->audio_dev)
cx23885_audio_unregister(dev);
}
int cx23885_video_register(struct cx23885_dev *dev)
{
struct vb2_queue *q;
int err;
dprintk(1, "%s()\n", __func__);
/* Initialize VBI template */
cx23885_vbi_template = cx23885_video_template;
strscpy(cx23885_vbi_template.name, "cx23885-vbi",
sizeof(cx23885_vbi_template.name));
dev->tvnorm = V4L2_STD_NTSC_M;
dev->fmt = format_by_fourcc(V4L2_PIX_FMT_YUYV);
dev->field = V4L2_FIELD_INTERLACED;
dev->width = 720;
dev->height = norm_maxh(dev->tvnorm);
/* init video dma queues */
INIT_LIST_HEAD(&dev->vidq.active);
/* init vbi dma queues */
INIT_LIST_HEAD(&dev->vbiq.active);
cx23885_irq_add_enable(dev, 0x01);
if ((TUNER_ABSENT != dev->tuner_type) &&
((dev->tuner_bus == 0) || (dev->tuner_bus == 1))) {
struct v4l2_subdev *sd = NULL;
if (dev->tuner_addr)
sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
&dev->i2c_bus[dev->tuner_bus].i2c_adap,
"tuner", dev->tuner_addr, NULL);
else
sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
&dev->i2c_bus[dev->tuner_bus].i2c_adap,
"tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
if (sd) {
struct tuner_setup tun_setup;
memset(&tun_setup, 0, sizeof(tun_setup));
tun_setup.mode_mask = T_ANALOG_TV;
tun_setup.type = dev->tuner_type;
tun_setup.addr = v4l2_i2c_subdev_addr(sd);
tun_setup.tuner_callback = cx23885_tuner_callback;
v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
if ((dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) ||
(dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200)) {
struct xc2028_ctrl ctrl = {
.fname = XC2028_DEFAULT_FIRMWARE,
.max_len = 64
};
struct v4l2_priv_tun_config cfg = {
.tuner = dev->tuner_type,
.priv = &ctrl
};
v4l2_subdev_call(sd, tuner, s_config, &cfg);
}
if (dev->board == CX23885_BOARD_AVERMEDIA_HC81R) {
struct xc2028_ctrl ctrl = {
.fname = "xc3028L-v36.fw",
.max_len = 64
};
struct v4l2_priv_tun_config cfg = {
.tuner = dev->tuner_type,
.priv = &ctrl
};
v4l2_subdev_call(sd, tuner, s_config, &cfg);
}
}
}
/* initial device configuration */
mutex_lock(&dev->lock);
cx23885_set_tvnorm(dev, dev->tvnorm);
cx23885_video_mux(dev, 0);
cx23885_audio_mux(dev, 0);
mutex_unlock(&dev->lock);
q = &dev->vb2_vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
q->gfp_flags = GFP_DMA32;
q->min_buffers_needed = 2;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx23885_buffer);
q->ops = &cx23885_video_qops;
q->mem_ops = &vb2_dma_sg_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &dev->lock;
q->dev = &dev->pci->dev;
err = vb2_queue_init(q);
if (err < 0)
goto fail_unreg;
q = &dev->vb2_vbiq;
q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
q->gfp_flags = GFP_DMA32;
q->min_buffers_needed = 2;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx23885_buffer);
q->ops = &cx23885_vbi_qops;
q->mem_ops = &vb2_dma_sg_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &dev->lock;
q->dev = &dev->pci->dev;
err = vb2_queue_init(q);
if (err < 0)
goto fail_unreg;
/* register Video device */
dev->video_dev = cx23885_vdev_init(dev, dev->pci,
&cx23885_video_template, "video");
dev->video_dev->queue = &dev->vb2_vidq;
dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
V4L2_CAP_AUDIO | V4L2_CAP_VIDEO_CAPTURE;
if (dev->tuner_type != TUNER_ABSENT)
dev->video_dev->device_caps |= V4L2_CAP_TUNER;
err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
video_nr[dev->nr]);
if (err < 0) {
pr_info("%s: can't register video device\n",
dev->name);
goto fail_unreg;
}
pr_info("%s: registered device %s [v4l2]\n",
dev->name, video_device_node_name(dev->video_dev));
/* register VBI device */
dev->vbi_dev = cx23885_vdev_init(dev, dev->pci,
&cx23885_vbi_template, "vbi");
dev->vbi_dev->queue = &dev->vb2_vbiq;
dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
V4L2_CAP_AUDIO | V4L2_CAP_VBI_CAPTURE;
if (dev->tuner_type != TUNER_ABSENT)
dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
err = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->nr]);
if (err < 0) {
pr_info("%s: can't register vbi device\n",
dev->name);
goto fail_unreg;
}
pr_info("%s: registered device %s\n",
dev->name, video_device_node_name(dev->vbi_dev));
/* Register ALSA audio device */
dev->audio_dev = cx23885_audio_register(dev);
return 0;
fail_unreg:
cx23885_video_unregister(dev);
return err;
}