diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-blackbird.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-blackbird.c | 911 |
1 files changed, 911 insertions, 0 deletions
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c new file mode 100644 index 000000000000..46d6778b863b --- /dev/null +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -0,0 +1,911 @@ +/* + * $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: + */ |