/*
* $Id: cx88-blackbird.c,v 1.26 2005/03/07 15:58:05 kraxel Exp $
*
* Support for a cx23416 mpeg encoder via cx2388x host port.
* "blackbird" reference design.
*
* (c) 2004 Jelle Foks <jelle@foks.8m.com>
* (c) 2004 Gerd Knorr <kraxel@bytesex.org>
*
* Includes parts from the ivtv driver( http://ivtv.sourceforge.net/),
*
* 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/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include "cx88.h"
MODULE_DESCRIPTION("driver for cx2388x/cx23416 based mpeg encoder cards");
MODULE_AUTHOR("Jelle Foks <jelle@foks.8m.com>");
MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
MODULE_LICENSE("GPL");
static unsigned int mpegbufs = 8;
module_param(mpegbufs,int,0644);
MODULE_PARM_DESC(mpegbufs,"number of mpeg buffers, range 2-32");
static unsigned int debug = 0;
module_param(debug,int,0644);
MODULE_PARM_DESC(debug,"enable debug messages [blackbird]");
#define dprintk(level,fmt, arg...) if (debug >= level) \
printk(KERN_DEBUG "%s/2-bb: " fmt, dev->core->name , ## arg)
static LIST_HEAD(cx8802_devlist);
/* ------------------------------------------------------------------ */
#define BLACKBIRD_FIRM_ENC_FILENAME "blackbird-fw-enc.bin"
#define BLACKBIRD_FIRM_IMAGE_SIZE 256*1024
/* defines below are from ivtv-driver.h */
#define IVTV_CMD_HW_BLOCKS_RST 0xFFFFFFFF
/*Firmware API commands*/
#define IVTV_API_ENC_PING_FW 0x00000080
#define IVTV_API_ENC_GETVER 0x000000C4
#define IVTV_API_ENC_HALT_FW 0x000000C3
#define IVTV_API_STD_TIMEOUT 0x00010000 /*units??*/
//#define IVTV_API_ASSIGN_PGM_INDEX_INFO 0x000000c7
#define IVTV_API_ASSIGN_STREAM_TYPE 0x000000b9
#define IVTV_API_ASSIGN_OUTPUT_PORT 0x000000bb
#define IVTV_API_ASSIGN_FRAMERATE 0x0000008f
#define IVTV_API_ASSIGN_FRAME_SIZE 0x00000091
#define IVTV_API_ASSIGN_ASPECT_RATIO 0x00000099
#define IVTV_API_ASSIGN_BITRATES 0x00000095
#define IVTV_API_ASSIGN_GOP_PROPERTIES 0x00000097
#define IVTV_API_ASSIGN_3_2_PULLDOWN 0x000000b1
#define IVTV_API_ASSIGN_GOP_CLOSURE 0x000000c5
#define IVTV_API_ASSIGN_AUDIO_PROPERTIES 0x000000bd
#define IVTV_API_ASSIGN_DNR_FILTER_MODE 0x0000009b
#define IVTV_API_ASSIGN_DNR_FILTER_PROPS 0x0000009d
#define IVTV_API_ASSIGN_CORING_LEVELS 0x0000009f
#define IVTV_API_ASSIGN_SPATIAL_FILTER_TYPE 0x000000a1
#define IVTV_API_ASSIGN_FRAME_DROP_RATE 0x000000d0
#define IVTV_API_ASSIGN_PLACEHOLDER 0x000000d8
#define IVTV_API_MUTE_VIDEO 0x000000d9
#define IVTV_API_MUTE_AUDIO 0x000000da
#define IVTV_API_INITIALIZE_INPUT 0x000000cd
#define IVTV_API_REFRESH_INPUT 0x000000d3
#define IVTV_API_ASSIGN_NUM_VSYNC_LINES 0x000000d6
#define IVTV_API_BEGIN_CAPTURE 0x00000081
//#define IVTV_API_PAUSE_ENCODER 0x000000d2
//#define IVTV_API_EVENT_NOTIFICATION 0x000000d5
#define IVTV_API_END_CAPTURE 0x00000082
/* Registers */
#define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8 /*| IVTV_REG_OFFSET*/)
#define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC /*| IVTV_REG_OFFSET*/)
#define IVTV_REG_SPU (0x9050 /*| IVTV_REG_OFFSET*/)
#define IVTV_REG_HW_BLOCKS (0x9054 /*| IVTV_REG_OFFSET*/)
#define IVTV_REG_VPU (0x9058 /*| IVTV_REG_OFFSET*/)
#define IVTV_REG_APU (0xA064 /*| IVTV_REG_OFFSET*/)
/* ------------------------------------------------------------------ */
static void host_setup(struct cx88_core *core)
{
/* toggle reset of the host */
cx_write(MO_GPHST_SOFT_RST, 1);
udelay(100);
cx_write(MO_GPHST_SOFT_RST, 0);
udelay(100);
/* host port setup */
cx_write(MO_GPHST_WSC, 0x44444444U);
cx_write(MO_GPHST_XFR, 0);
cx_write(MO_GPHST_WDTH, 15);
cx_write(MO_GPHST_HDSHK, 0);
cx_write(MO_GPHST_MUX16, 0x44448888U);
cx_write(MO_GPHST_MODE, 0);
}
/* ------------------------------------------------------------------ */
#define P1_MDATA0 0x390000
#define P1_MDATA1 0x390001
#define P1_MDATA2 0x390002
#define P1_MDATA3 0x390003
#define P1_MADDR2 0x390004
#define P1_MADDR1 0x390005
#define P1_MADDR0 0x390006
#define P1_RDATA0 0x390008
#define P1_RDATA1 0x390009
#define P1_RDATA2 0x39000A
#define P1_RDATA3 0x39000B
#define P1_RADDR0 0x39000C
#define P1_RADDR1 0x39000D
#define P1_RRDWR 0x39000E
static int wait_ready_gpio0_bit1(struct cx88_core *core, u32 state)
{
unsigned long timeout = jiffies + msecs_to_jiffies(1);
u32 gpio0,need;
need = state ? 2 : 0;
for (;;) {
gpio0 = cx_read(MO_GP0_IO) & 2;
if (need == gpio0)
return 0;
if (time_after(jiffies,timeout))
return -1;
udelay(1);
}
}
static int memory_write(struct cx88_core *core, u32 address, u32 value)
{
/* Warning: address is dword address (4 bytes) */
cx_writeb(P1_MDATA0, (unsigned int)value);
cx_writeb(P1_MDATA1, (unsigned int)(value >> 8));
cx_writeb(P1_MDATA2, (unsigned int)(value >> 16));
cx_writeb(P1_MDATA3, (unsigned int)(value >> 24));
cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) | 0x40);
cx_writeb(P1_MADDR1, (unsigned int)(address >> 8));
cx_writeb(P1_MADDR0, (unsigned int)address);
cx_read(P1_MDATA0);
cx_read(P1_MADDR0);
return wait_ready_gpio0_bit1(core,1);
}
static int memory_read(struct cx88_core *core, u32 address, u32 *value)
{
int retval;
u32 val;
/* Warning: address is dword address (4 bytes) */
cx_writeb(P1_MADDR2, (unsigned int)(address >> 16) & ~0xC0);
cx_writeb(P1_MADDR1, (unsigned int)(address >> 8));
cx_writeb(P1_MADDR0, (unsigned int)address);
cx_read(P1_MADDR0);
retval = wait_ready_gpio0_bit1(core,1);
cx_writeb(P1_MDATA3, 0);
val = (unsigned char)cx_read(P1_MDATA3) << 24;
cx_writeb(P1_MDATA2, 0);
val |= (unsigned char)cx_read(P1_MDATA2) << 16;
cx_writeb(P1_MDATA1, 0);
val |= (unsigned char)cx_read(P1_MDATA1) << 8;
cx_writeb(P1_MDATA0, 0);
val |= (unsigned char)cx_read(P1_MDATA0);
*value = val;
return retval;
}
static int register_write(struct cx88_core *core, u32 address, u32 value)
{
cx_writeb(P1_RDATA0, (unsigned int)value);
cx_writeb(P1_RDATA1, (unsigned int)(value >> 8));
cx_writeb(P1_RDATA2, (unsigned int)(value >> 16));
cx_writeb(P1_RDATA3, (unsigned int)(value >> 24));
cx_writeb(P1_RADDR0, (unsigned int)address);
cx_writeb(P1_RADDR1, (unsigned int)(address >> 8));
cx_writeb(P1_RRDWR, 1);
cx_read(P1_RDATA0);
cx_read(P1_RADDR0);
return wait_ready_gpio0_bit1(core,1);
}
static int register_read(struct cx88_core *core, u32 address, u32 *value)
{
int retval;
u32 val;
cx_writeb(P1_RADDR0, (unsigned int)address);
cx_writeb(P1_RADDR1, (unsigned int)(address >> 8));
cx_writeb(P1_RRDWR, 0);
cx_read(P1_RADDR0);
retval = wait_ready_gpio0_bit1(core,1);
val = (unsigned char)cx_read(P1_RDATA0);
val |= (unsigned char)cx_read(P1_RDATA1) << 8;
val |= (unsigned char)cx_read(P1_RDATA2) << 16;
val |= (unsigned char)cx_read(P1_RDATA3) << 24;
*value = val;
return retval;
}
/* ------------------------------------------------------------------ */
/* We don't need to call the API often, so using just one mailbox will probably suffice */
static int blackbird_api_cmd(struct cx8802_dev *dev, u32 command,
u32 inputcnt, u32 outputcnt, ...)
{
unsigned long timeout;
u32 value, flag, retval;
int i;
va_list args;
va_start(args, outputcnt);
dprintk(1,"%s: 0x%X\n", __FUNCTION__, command);
/* this may not be 100% safe if we can't read any memory location
without side effects */
memory_read(dev->core, dev->mailbox - 4, &value);
if (value != 0x12345678) {
dprintk(0, "Firmware and/or mailbox pointer not initialized or corrupted\n");
return -1;
}
memory_read(dev->core, dev->mailbox, &flag);
if (flag) {
dprintk(0, "ERROR: Mailbox appears to be in use (%x)\n", flag);
return -1;
}
flag |= 1; /* tell 'em we're working on it */
memory_write(dev->core, dev->mailbox, flag);
/* write command + args + fill remaining with zeros */
memory_write(dev->core, dev->mailbox + 1, command); /* command code */
memory_write(dev->core, dev->mailbox + 3, IVTV_API_STD_TIMEOUT); /* timeout */
for (i = 0; i < inputcnt ; i++) {
value = va_arg(args, int);
memory_write(dev->core, dev->mailbox + 4 + i, value);
dprintk(1, "API Input %d = %d\n", i, value);
}
for (; i < 16 ; i++)
memory_write(dev->core, dev->mailbox + 4 + i, 0);
flag |= 3; /* tell 'em we're done writing */
memory_write(dev->core, dev->mailbox, flag);
/* wait for firmware to handle the API command */
timeout = jiffies + msecs_to_jiffies(10);
for (;;) {
memory_read(dev->core, dev->mailbox, &flag);
if (0 != (flag & 4))
break;
if (time_after(jiffies,timeout)) {
dprintk(0, "ERROR: API Mailbox timeout\n");
return -1;
}
udelay(10);
}
/* read output values */
for (i = 0; i < outputcnt ; i++) {
int *vptr = va_arg(args, int *);
memory_read(dev->core, dev->mailbox + 4 + i, vptr);
dprintk(1, "API Output %d = %d\n", i, *vptr);
}
va_end(args);
memory_read(dev->core, dev->mailbox + 2, &retval);
dprintk(1, "API result = %d\n",retval);
flag = 0;
memory_write(dev->core, dev->mailbox, flag);
return retval;
}
static int blackbird_find_mailbox(struct cx8802_dev *dev)
{
u32 signature[4]={0x12345678, 0x34567812, 0x56781234, 0x78123456};
int signaturecnt=0;
u32 value;
int i;
for (i = 0; i < BLACKBIRD_FIRM_IMAGE_SIZE; i++) {
memory_read(dev->core, i, &value);
if (value == signature[signaturecnt])
signaturecnt++;
else
signaturecnt = 0;
if (4 == signaturecnt) {
dprintk(1, "Mailbox signature found\n");
return i+1;
}
}
dprintk(0, "Mailbox signature values not found!\n");
return -1;
}
static int blackbird_load_firmware(struct cx8802_dev *dev)
{
static const unsigned char magic[8] = {
0xa7, 0x0d, 0x00, 0x00, 0x66, 0xbb, 0x55, 0xaa
};
const struct firmware *firmware;
int i, retval = 0;
u32 value = 0;
u32 checksum = 0;
u32 *dataptr;
retval = register_write(dev->core, IVTV_REG_VPU, 0xFFFFFFED);
retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS, IVTV_CMD_HW_BLOCKS_RST);
retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_REFRESH, 0x80000640);
retval |= register_write(dev->core, IVTV_REG_ENC_SDRAM_PRECHARGE, 0x1A);
msleep(1);
retval |= register_write(dev->core, IVTV_REG_APU, 0);
if (retval < 0)
dprintk(0, "Error with register_write\n");
retval = request_firmware(&firmware, BLACKBIRD_FIRM_ENC_FILENAME,
&dev->pci->dev);
if (retval != 0) {
dprintk(0, "ERROR: Hotplug firmware request failed (%s).\n",
BLACKBIRD_FIRM_ENC_FILENAME);
dprintk(0, "Please fix your hotplug setup, the board will "
"not work without firmware loaded!\n");
return -1;
}
if (firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) {
dprintk(0, "ERROR: Firmware size mismatch (have %zd, expected %d)\n",
firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE);
return -1;
}
if (0 != memcmp(firmware->data, magic, 8)) {
dprintk(0, "ERROR: Firmware magic mismatch, wrong file?\n");
return -1;
}
/* transfer to the chip */
dprintk(1,"Loading firmware ...\n");
dataptr = (u32*)firmware->data;
for (i = 0; i < (firmware->size >> 2); i++) {
value = *dataptr;
checksum += ~value;
memory_write(dev->core, i, value);
dataptr++;
}
/* read back to verify with the checksum */
for (i--; i >= 0; i--) {
memory_read(dev->core, i, &value);
checksum -= ~value;
}
if (checksum) {
dprintk(0, "ERROR: Firmware load failed (checksum mismatch).\n");
return -1;
}
release_firmware(firmware);
dprintk(0, "Firmware upload successful.\n");
retval |= register_write(dev->core, IVTV_REG_HW_BLOCKS, IVTV_CMD_HW_BLOCKS_RST);
retval |= register_read(dev->core, IVTV_REG_SPU, &value);
retval |= register_write(dev->core, IVTV_REG_SPU, value & 0xFFFFFFFE);
msleep(1);
retval |= register_read(dev->core, IVTV_REG_VPU, &value);
retval |= register_write(dev->core, IVTV_REG_VPU, value & 0xFFFFFFE8);
if (retval < 0)
dprintk(0, "Error with register_write\n");
return 0;
}
static void blackbird_codec_settings(struct cx8802_dev *dev)
{
int bitrate_mode = 1;
int bitrate = 7500000;
int bitrate_peak = 7500000;
/* assign stream type */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_STREAM_TYPE, 1, 0, 0); /* program stream */
//blackbird_api_cmd(dev, IVTV_API_ASSIGN_STREAM_TYPE, 1, 0, 2); /* MPEG1 stream */
//blackbird_api_cmd(dev, IVTV_API_ASSIGN_STREAM_TYPE, 1, 0, 3); /* PES A/V */
//blackbird_api_cmd(dev, IVTV_API_ASSIGN_STREAM_TYPE, 1, 0, 10); /* DVD stream */
/* assign output port */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_OUTPUT_PORT, 1, 0, 1); /* 1 = Host */
/* assign framerate */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_FRAMERATE, 1, 0, 0);
/* assign frame size */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_FRAME_SIZE, 2, 0,
dev->height, dev->width);
/* assign aspect ratio */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_ASPECT_RATIO, 1, 0, 2);
/* assign bitrates */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_BITRATES, 5, 0,
bitrate_mode, /* mode */
bitrate, /* bps */
bitrate_peak / 400, /* peak/400 */
0, 0x70); /* encoding buffer, ckennedy */
/* assign gop properties */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_GOP_PROPERTIES, 2, 0, 15, 3);
//blackbird_api_cmd(dev, IVTV_API_ASSIGN_GOP_PROPERTIES, 2, 0, 2, 1);
/* assign 3 2 pulldown */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_3_2_PULLDOWN, 1, 0, 0);
/* note: it's not necessary to set the samplerate, the mpeg encoder seems to autodetect/adjust */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_AUDIO_PROPERTIES, 1, 0, (2<<2) | (8<<4));
/* assign gop closure */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_GOP_CLOSURE, 1, 0, 0);
/* assign audio properties */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_AUDIO_PROPERTIES, 1, 0, 0 | (2 << 2) | (14 << 4));
/* assign dnr filter mode */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_DNR_FILTER_MODE, 2, 0, 0, 0);
/* assign dnr filter props*/
blackbird_api_cmd(dev, IVTV_API_ASSIGN_DNR_FILTER_PROPS, 2, 0, 0, 0);
/* assign coring levels (luma_h, luma_l, chroma_h, chroma_l) */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_CORING_LEVELS, 4, 0, 0, 255, 0, 255);
/* assign spatial filter type: luma_t: 1 = horiz_only, chroma_t: 1 = horiz_only */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_SPATIAL_FILTER_TYPE, 2, 0, 1, 1);
/* assign frame drop rate */
blackbird_api_cmd(dev, IVTV_API_ASSIGN_FRAME_DROP_RATE, 1, 0, 0);
}
static int blackbird_initialize_codec(struct cx8802_dev *dev)
{
struct cx88_core *core = dev->core;
int version;
int retval;
dprintk(1,"Initialize codec\n");
retval = blackbird_api_cmd(dev, IVTV_API_ENC_PING_FW, 0, 0); /* ping */
if (retval < 0) {
/* ping was not successful, reset and upload firmware */
cx_write(MO_SRST_IO, 0); /* SYS_RSTO=0 */
msleep(1);
cx_write(MO_SRST_IO, 1); /* SYS_RSTO=1 */
msleep(1);
retval = blackbird_load_firmware(dev);
if (retval < 0)
return retval;
dev->mailbox = blackbird_find_mailbox(dev);
if (dev->mailbox < 0)
return -1;
retval = blackbird_api_cmd(dev, IVTV_API_ENC_PING_FW, 0, 0); /* ping */
if (retval < 0) {
dprintk(0, "ERROR: Firmware ping failed!\n");
return -1;
}
retval = blackbird_api_cmd(dev, IVTV_API_ENC_GETVER, 0, 1, &version);
if (retval < 0) {
dprintk(0, "ERROR: Firmware get encoder version failed!\n");
return -1;
}
dprintk(0, "Firmware version is 0x%08x\n", version);
}
msleep(1);
cx_write(MO_PINMUX_IO, 0x88); /* 656-8bit IO and enable MPEG parallel IO */
cx_clear(MO_INPUT_FORMAT, 0x100); /* chroma subcarrier lock to normal? */
cx_write(MO_VBOS_CONTROL, 0x84A00); /* no 656 mode, 8-bit pixels, disable VBI */
cx_clear(MO_OUTPUT_FORMAT, 0x0008); /* Normal Y-limits to let the mpeg encoder sync */
#if 0 /* FIXME */
set_scale(dev, 720, 480, V4L2_FIELD_INTERLACED);
#endif
blackbird_codec_settings(dev);
msleep(1);
//blackbird_api_cmd(dev, IVTV_API_ASSIGN_NUM_VSYNC_LINES, 4, 0, 0xef, 0xef);
blackbird_api_cmd(dev, IVTV_API_ASSIGN_NUM_VSYNC_LINES, 4, 0, 0xf0, 0xf0);
//blackbird_api_cmd(dev, IVTV_API_ASSIGN_NUM_VSYNC_LINES, 4, 0, 0x180, 0x180);
blackbird_api_cmd(dev, IVTV_API_ASSIGN_PLACEHOLDER, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
blackbird_api_cmd(dev, IVTV_API_INITIALIZE_INPUT, 0, 0); /* initialize the video input */
msleep(1);
blackbird_api_cmd(dev, IVTV_API_MUTE_VIDEO, 1, 0, 0);
msleep(1);
blackbird_api_cmd(dev, IVTV_API_MUTE_AUDIO, 1, 0, 0);
msleep(1);
blackbird_api_cmd(dev, IVTV_API_BEGIN_CAPTURE, 2, 0, 0, 0x13); /* start capturing to the host interface */
//blackbird_api_cmd(dev, IVTV_API_BEGIN_CAPTURE, 2, 0, 0, 0); /* start capturing to the host interface */
msleep(1);
blackbird_api_cmd(dev, IVTV_API_REFRESH_INPUT, 0,0);
return 0;
}
/* ------------------------------------------------------------------ */
static int bb_buf_setup(struct videobuf_queue *q,
unsigned int *count, unsigned int *size)
{
struct cx8802_fh *fh = q->priv_data;
fh->dev->ts_packet_size = 512;
fh->dev->ts_packet_count = 100;
*size = fh->dev->ts_packet_size * fh->dev->ts_packet_count;
if (0 == *count)
*count = mpegbufs;
if (*count < 2)
*count = 2;
if (*count > 32)
*count = 32;
return 0;
}
static int
bb_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct cx8802_fh *fh = q->priv_data;
return cx8802_buf_prepare(fh->dev, (struct cx88_buffer*)vb);
}
static void
bb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct cx8802_fh *fh = q->priv_data;
cx8802_buf_queue(fh->dev, (struct cx88_buffer*)vb);
}
static void
bb_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct cx8802_fh *fh = q->priv_data;
cx88_free_buffer(fh->dev->pci, (struct cx88_buffer*)vb);
}
static struct videobuf_queue_ops blackbird_qops = {
.buf_setup = bb_buf_setup,
.buf_prepare = bb_buf_prepare,
.buf_queue = bb_buf_queue,
.buf_release = bb_buf_release,
};
/* ------------------------------------------------------------------ */
static int mpeg_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *arg)
{
struct cx8802_fh *fh = file->private_data;
struct cx8802_dev *dev = fh->dev;
if (debug > 1)
cx88_print_ioctl(dev->core->name,cmd);
switch (cmd) {
/* --- capture ioctls ---------------------------------------- */
case VIDIOC_ENUM_FMT:
{
struct v4l2_fmtdesc *f = arg;
int index;
index = f->index;
if (index != 0)
return -EINVAL;
memset(f,0,sizeof(*f));
f->index = index;
strlcpy(f->description, "MPEG TS", sizeof(f->description));
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
f->pixelformat = V4L2_PIX_FMT_MPEG;
return 0;
}
case VIDIOC_G_FMT:
case VIDIOC_S_FMT:
case VIDIOC_TRY_FMT:
{
/* FIXME -- quick'n'dirty for exactly one size ... */
struct v4l2_format *f = arg;
memset(f,0,sizeof(*f));
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
f->fmt.pix.width = dev->width;
f->fmt.pix.height = dev->height;
f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
f->fmt.pix.sizeimage = 1024 * 512 /* FIXME: BUFFER_SIZE */;
}
/* --- streaming capture ------------------------------------- */
case VIDIOC_REQBUFS:
return videobuf_reqbufs(&fh->mpegq, arg);
case VIDIOC_QUERYBUF:
return videobuf_querybuf(&fh->mpegq, arg);
case VIDIOC_QBUF:
return videobuf_qbuf(&fh->mpegq, arg);
case VIDIOC_DQBUF:
return videobuf_dqbuf(&fh->mpegq, arg,
file->f_flags & O_NONBLOCK);
case VIDIOC_STREAMON:
return videobuf_streamon(&fh->mpegq);
case VIDIOC_STREAMOFF:
return videobuf_streamoff(&fh->mpegq);
default:
return -EINVAL;
}
return 0;
}
static int mpeg_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
return video_usercopy(inode, file, cmd, arg, mpeg_do_ioctl);
}
static int mpeg_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct cx8802_dev *h,*dev = NULL;
struct cx8802_fh *fh;
struct list_head *list;
list_for_each(list,&cx8802_devlist) {
h = list_entry(list, struct cx8802_dev, devlist);
if (h->mpeg_dev->minor == minor)
dev = h;
}
if (NULL == dev)
return -ENODEV;
if (blackbird_initialize_codec(dev) < 0)
return -EINVAL;
dprintk(1,"open minor=%d\n",minor);
/* allocate + initialize per filehandle data */
fh = kmalloc(sizeof(*fh),GFP_KERNEL);
if (NULL == fh)
return -ENOMEM;
memset(fh,0,sizeof(*fh));
file->private_data = fh;
fh->dev = dev;
/* FIXME: locking against other video device */
cx88_set_scale(dev->core, dev->width, dev->height,
V4L2_FIELD_INTERLACED);
videobuf_queue_init(&fh->mpegq, &blackbird_qops,
dev->pci, &dev->slock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_TOP,
sizeof(struct cx88_buffer),
fh);
return 0;
}
static int mpeg_release(struct inode *inode, struct file *file)
{
struct cx8802_fh *fh = file->private_data;
blackbird_api_cmd(fh->dev, IVTV_API_END_CAPTURE, 3, 0, 1, 0, 0x13);
/* stop mpeg capture */
if (fh->mpegq.streaming)
videobuf_streamoff(&fh->mpegq);
if (fh->mpegq.reading)
videobuf_read_stop(&fh->mpegq);
videobuf_mmap_free(&fh->mpegq);
file->private_data = NULL;
kfree(fh);
return 0;
}
static ssize_t
mpeg_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
struct cx8802_fh *fh = file->private_data;
return videobuf_read_stream(&fh->mpegq, data, count, ppos, 0,
file->f_flags & O_NONBLOCK);
}
static unsigned int
mpeg_poll(struct file *file, struct poll_table_struct *wait)
{
struct cx8802_fh *fh = file->private_data;
return videobuf_poll_stream(file, &fh->mpegq, wait);
}
static int
mpeg_mmap(struct file *file, struct vm_area_struct * vma)
{
struct cx8802_fh *fh = file->private_data;
return videobuf_mmap_mapper(&fh->mpegq, vma);
}
static struct file_operations mpeg_fops =
{
.owner = THIS_MODULE,
.open = mpeg_open,
.release = mpeg_release,
.read = mpeg_read,
.poll = mpeg_poll,
.mmap = mpeg_mmap,
.ioctl = mpeg_ioctl,
.llseek = no_llseek,
};
static struct video_device cx8802_mpeg_template =
{
.name = "cx8802",
.type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES|VID_TYPE_MPEG_ENCODER,
.hardware = 0,
.fops = &mpeg_fops,
.minor = -1,
};
/* ------------------------------------------------------------------ */
static void blackbird_unregister_video(struct cx8802_dev *dev)
{
if (dev->mpeg_dev) {
if (-1 != dev->mpeg_dev->minor)
video_unregister_device(dev->mpeg_dev);
else
video_device_release(dev->mpeg_dev);
dev->mpeg_dev = NULL;
}
}
static int blackbird_register_video(struct cx8802_dev *dev)
{
int err;
dev->mpeg_dev = cx88_vdev_init(dev->core,dev->pci,
&cx8802_mpeg_template,"mpeg");
err = video_register_device(dev->mpeg_dev,VFL_TYPE_GRABBER, -1);
if (err < 0) {
printk(KERN_INFO "%s/2: can't register mpeg device\n",
dev->core->name);
return err;
}
printk(KERN_INFO "%s/2: registered device video%d [mpeg]\n",
dev->core->name,dev->mpeg_dev->minor & 0x1f);
return 0;
}
/* ----------------------------------------------------------- */
static int __devinit blackbird_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
struct cx8802_dev *dev;
struct cx88_core *core;
int err;
/* general setup */
core = cx88_core_get(pci_dev);
if (NULL == core)
return -EINVAL;
err = -ENODEV;
if (!cx88_boards[core->board].blackbird)
goto fail_core;
err = -ENOMEM;
dev = kmalloc(sizeof(*dev),GFP_KERNEL);
if (NULL == dev)
goto fail_core;
memset(dev,0,sizeof(*dev));
dev->pci = pci_dev;
dev->core = core;
dev->width = 720;
dev->height = 480;
err = cx8802_init_common(dev);
if (0 != err)
goto fail_free;
/* blackbird stuff */
printk("%s/2: cx23416 based mpeg encoder (blackbird reference design)\n",
core->name);
host_setup(dev->core);
list_add_tail(&dev->devlist,&cx8802_devlist);
blackbird_register_video(dev);
return 0;
fail_free:
kfree(dev);
fail_core:
cx88_core_put(core,pci_dev);
return err;
}
static void __devexit blackbird_remove(struct pci_dev *pci_dev)
{
struct cx8802_dev *dev = pci_get_drvdata(pci_dev);
/* blackbird */
blackbird_unregister_video(dev);
list_del(&dev->devlist);
/* common */
cx8802_fini_common(dev);
cx88_core_put(dev->core,dev->pci);
kfree(dev);
}
static struct pci_device_id cx8802_pci_tbl[] = {
{
.vendor = 0x14f1,
.device = 0x8802,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},{
/* --- end of list --- */
}
};
MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);
static struct pci_driver blackbird_pci_driver = {
.name = "cx88-blackbird",
.id_table = cx8802_pci_tbl,
.probe = blackbird_probe,
.remove = __devexit_p(blackbird_remove),
.suspend = cx8802_suspend_common,
.resume = cx8802_resume_common,
};
static int blackbird_init(void)
{
printk(KERN_INFO "cx2388x blackbird driver version %d.%d.%d loaded\n",
(CX88_VERSION_CODE >> 16) & 0xff,
(CX88_VERSION_CODE >> 8) & 0xff,
CX88_VERSION_CODE & 0xff);
#ifdef SNAPSHOT
printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
#endif
return pci_register_driver(&blackbird_pci_driver);
}
static void blackbird_fini(void)
{
pci_unregister_driver(&blackbird_pci_driver);
}
module_init(blackbird_init);
module_exit(blackbird_fini);
/* ----------------------------------------------------------- */
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
