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[PATCH] v4l: 716: support for em28xx board family

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- Added support for em28xx board family

Signed-off-by: Ludovico Cavedon <cavedon@sssup.it>
Signed-off-by: Markus Rechberger <mrechberger@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
akpm@osdl.org 2005-11-08 21:37:07 -08:00 committed by Linus Torvalds
parent 4b017415fc
commit a6c2ba2835
6 changed files with 3945 additions and 118 deletions
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168
drivers/media/video/em28xx/em28xx-cards.c Normal file
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/*
em2820-cards.c - driver for Empia EM2820/2840 USB video capture devices
Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
Ludovico Cavedon <cavedon@sssup.it>
Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
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/module.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/usb.h>
#include <media/tuner.h>
#include "audiochip.h"
#include "tveeprom.h"
#include "msp3400.h"
#include "em2820.h"
enum em2820_board_entry {
EM2820_BOARD_TERRATEC_CINERGY_250,
EM2820_BOARD_PINNACLE_USB_2,
EM2820_BOARD_HAUPPAUGE_WINTV_USB_2,
EM2820_BOARD_MSI_VOX_USB_2
};
struct em2820_board em2820_boards[] = {
[EM2820_BOARD_TERRATEC_CINERGY_250] = {
.name = "Terratec Cinergy 250 USB",
.vchannels = 3,
.norm = VIDEO_MODE_PAL,
.tuner_type = TUNER_LG_PAL_NEW_TAPC,
.tda9887_conf = TDA9887_PRESENT,
.has_tuner = 1,
.decoder = EM2820_SAA7113,
.input = {{
.type = EM2820_VMUX_TELEVISION,
.vmux = 2,
.amux = 0,
},{
.type = EM2820_VMUX_COMPOSITE1,
.vmux = 0,
.amux = 1,
},{
.type = EM2820_VMUX_SVIDEO,
.vmux = 9,
.amux = 1,
}},
},
[EM2820_BOARD_PINNACLE_USB_2] = {
.name = "Pinnacle PCTV USB 2",
.vchannels = 3,
.norm = VIDEO_MODE_PAL,
.tuner_type = TUNER_LG_PAL_NEW_TAPC,
.tda9887_conf = TDA9887_PRESENT,
.has_tuner = 1,
.decoder = EM2820_SAA7113,
.input = {{
.type = EM2820_VMUX_TELEVISION,
.vmux = 2,
.amux = 0,
},{
.type = EM2820_VMUX_COMPOSITE1,
.vmux = 0,
.amux = 1,
},{
.type = EM2820_VMUX_SVIDEO,
.vmux = 9,
.amux = 1,
}},
},
[EM2820_BOARD_HAUPPAUGE_WINTV_USB_2] = {
.name = "Hauppauge WinTV USB 2",
.vchannels = 3,
.norm = VIDEO_MODE_NTSC,
.tuner_type = TUNER_PHILIPS_FM1236_MK3,
.tda9887_conf = TDA9887_PRESENT|TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE,
.has_tuner = 1,
.decoder = EM2820_TVP5150,
.has_msp34xx = 1,
/*FIXME: S-Video not tested */
.input = {{
.type = EM2820_VMUX_TELEVISION,
.vmux = 0,
.amux = 0,
},{
.type = EM2820_VMUX_SVIDEO,
.vmux = 2,
.amux = 1,
}},
},
[EM2820_BOARD_MSI_VOX_USB_2] = {
.name = "MSI VOX USB 2.0",
.vchannels = 3,
.norm = VIDEO_MODE_PAL,
.tuner_type = TUNER_PHILIPS_PAL,
.tda9887_conf = TDA9887_PRESENT|TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE,
.has_tuner = 1,
.decoder = EM2820_SAA7114,
.input = {{
.type = EM2820_VMUX_TELEVISION,
.vmux = 2,
.amux = 0,
},{
.type = EM2820_VMUX_COMPOSITE1,
.vmux = 0,
.amux = 1,
},{
.type = EM2820_VMUX_SVIDEO,
.vmux = 9,
.amux = 1,
}},
},
{ } /* Terminating entry */
};
/* table of devices that work with this driver */
struct usb_device_id em2820_id_table [] = {
/* Terratec Cinerhy 200 USB: em2800 nor supported, at the moment */
/* { USB_DEVICE(0xeb1a, 0x2800), .driver_info = EM2800_BOARD_TERRATEC_CINERGY_200 }, */
{ USB_DEVICE(0x0ccd, 0x0036), .driver_info = EM2820_BOARD_TERRATEC_CINERGY_250 },
{ USB_DEVICE(0x2304, 0x0208), .driver_info = EM2820_BOARD_PINNACLE_USB_2 },
{ USB_DEVICE(0x2040, 0x4200), .driver_info = EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 },
{ USB_DEVICE(0xeb1a, 0x2820), .driver_info = EM2820_BOARD_MSI_VOX_USB_2 },
{ },
};
void em2820_card_setup(struct em2820 *dev)
{
/* request some modules */
if (dev->model == EM2820_BOARD_HAUPPAUGE_WINTV_USB_2) {
struct tveeprom tv;
#ifdef CONFIG_MODULES
request_module("tveeprom");
#endif
/* Call first TVeeprom */
tveeprom_hauppauge_analog(&dev->i2c_client, &tv, dev->eedata);
dev->tuner_type= tv.tuner_type;
if (tv.audio_processor == AUDIO_CHIP_MSP34XX) {
dev->has_msp34xx=1;
} else dev->has_msp34xx=0;
}
}
EXPORT_SYMBOL(em2820_boards);
EXPORT_SYMBOL(em2820_id_table);
MODULE_DEVICE_TABLE (usb, em2820_id_table);

807
drivers/media/video/em28xx/em28xx-core.c Normal file
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/*
em2820-core.c - driver for Empia EM2820/2840 USB video capture devices
Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
Ludovico Cavedon <cavedon@sssup.it>
Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
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/videodev.h>
#include <linux/usb.h>
#include <linux/vmalloc.h>
#include "em2820.h"
/* #define ENABLE_DEBUG_ISOC_FRAMES */
unsigned int core_debug = 0;
module_param(core_debug,int,0644);
MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
#define em2820_coredbg(fmt, arg...) do {\
if (core_debug) \
printk(KERN_INFO "%s %s :"fmt, \
dev->name, __FUNCTION__ , ##arg); } while (0)
unsigned int reg_debug = 0;
module_param(reg_debug,int,0644);
MODULE_PARM_DESC(reg_debug,"enable debug messages [URB reg]");
#define em2820_regdbg(fmt, arg...) do {\
if (reg_debug) \
printk(KERN_INFO "%s %s :"fmt, \
dev->name, __FUNCTION__ , ##arg); } while (0)
unsigned int isoc_debug = 0;
module_param(isoc_debug,int,0644);
MODULE_PARM_DESC(core_debug,"enable debug messages [isoc transfers]");
#define em2820_isocdbg(fmt, arg...) do {\
if (isoc_debug) \
printk(KERN_INFO "%s %s :"fmt, \
dev->name, __FUNCTION__ , ##arg); } while (0)
static int alt = EM2820_PINOUT;
module_param(alt, int, 0644);
MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
/* ------------------------------------------------------------------ */
/* debug help functions */
static const char *v4l1_ioctls[] = {
"0", "CGAP", "GCHAN", "SCHAN", "GTUNER", "STUNER", "GPICT", "SPICT",
"CCAPTURE", "GWIN", "SWIN", "GFBUF", "SFBUF", "KEY", "GFREQ",
"SFREQ", "GAUDIO", "SAUDIO", "SYNC", "MCAPTURE", "GMBUF", "GUNIT",
"GCAPTURE", "SCAPTURE", "SPLAYMODE", "SWRITEMODE", "GPLAYINFO",
"SMICROCODE", "GVBIFMT", "SVBIFMT" };
#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
static const char *v4l2_ioctls[] = {
"QUERYCAP", "1", "ENUM_PIXFMT", "ENUM_FBUFFMT", "G_FMT", "S_FMT",
"G_COMP", "S_COMP", "REQBUFS", "QUERYBUF", "G_FBUF", "S_FBUF",
"G_WIN", "S_WIN", "PREVIEW", "QBUF", "16", "DQBUF", "STREAMON",
"STREAMOFF", "G_PERF", "G_PARM", "S_PARM", "G_STD", "S_STD",
"ENUMSTD", "ENUMINPUT", "G_CTRL", "S_CTRL", "G_TUNER", "S_TUNER",
"G_FREQ", "S_FREQ", "G_AUDIO", "S_AUDIO", "35", "QUERYCTRL",
"QUERYMENU", "G_INPUT", "S_INPUT", "ENUMCVT", "41", "42", "43",
"44", "45", "G_OUTPUT", "S_OUTPUT", "ENUMOUTPUT", "G_AUDOUT",
"S_AUDOUT", "ENUMFX", "G_EFFECT", "S_EFFECT", "G_MODULATOR",
"S_MODULATOR"
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
void em2820_print_ioctl(char *name, unsigned int cmd)
{
char *dir;
switch (_IOC_DIR(cmd)) {
case _IOC_NONE: dir = "--"; break;
case _IOC_READ: dir = "r-"; break;
case _IOC_WRITE: dir = "-w"; break;
case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
default: dir = "??"; break;
}
switch (_IOC_TYPE(cmd)) {
case 'v':
printk(KERN_DEBUG "%s: ioctl 0x%08x (v4l1, %s, VIDIOC%s)\n",
name, cmd, dir, (_IOC_NR(cmd) < V4L1_IOCTLS) ?
v4l1_ioctls[_IOC_NR(cmd)] : "???");
break;
case 'V':
printk(KERN_DEBUG "%s: ioctl 0x%08x (v4l2, %s, VIDIOC_%s)\n",
name, cmd, dir, (_IOC_NR(cmd) < V4L2_IOCTLS) ?
v4l2_ioctls[_IOC_NR(cmd)] : "???");
break;
default:
printk(KERN_DEBUG "%s: ioctl 0x%08x (???, %s, #%d)\n",
name, cmd, dir, _IOC_NR(cmd));
}
}
static void *rvmalloc(size_t size)
{
void *mem;
unsigned long adr;
size = PAGE_ALIGN(size);
mem = vmalloc_32((unsigned long)size);
if (!mem)
return NULL;
memset(mem, 0, size);
adr = (unsigned long)mem;
while (size > 0) {
SetPageReserved(vmalloc_to_page((void *)adr));
adr += PAGE_SIZE;
size -= PAGE_SIZE;
}
return mem;
}
static void rvfree(void *mem, size_t size)
{
unsigned long adr;
if (!mem)
return;
size = PAGE_ALIGN(size);
adr = (unsigned long)mem;
while (size > 0) {
ClearPageReserved(vmalloc_to_page((void *)adr));
adr += PAGE_SIZE;
size -= PAGE_SIZE;
}
vfree(mem);
}
/*
* em2820_request_buffers()
* allocate a number of buffers
*/
u32 em2820_request_buffers(struct em2820 *dev, u32 count)
{
const size_t imagesize = PAGE_ALIGN(dev->frame_size); /*needs to be page aligned cause the buffers can be mapped individually! */
void *buff = NULL;
u32 i;
em2820_coredbg("requested %i buffers with size %i", count, imagesize);
if (count > EM2820_NUM_FRAMES)
count = EM2820_NUM_FRAMES;
dev->num_frames = count;
while (dev->num_frames > 0) {
if ((buff = rvmalloc(dev->num_frames * imagesize)))
break;
dev->num_frames--;
}
for (i = 0; i < dev->num_frames; i++) {
dev->frame[i].bufmem = buff + i * imagesize;
dev->frame[i].buf.index = i;
dev->frame[i].buf.m.offset = i * imagesize;
dev->frame[i].buf.length = dev->frame_size;
dev->frame[i].buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
dev->frame[i].buf.sequence = 0;
dev->frame[i].buf.field = V4L2_FIELD_NONE;
dev->frame[i].buf.memory = V4L2_MEMORY_MMAP;
dev->frame[i].buf.flags = 0;
}
return dev->num_frames;
}
/*
* em2820_queue_unusedframes()
* add all frames that are not currently in use to the inbuffer queue
*/
void em2820_queue_unusedframes(struct em2820 *dev)
{
unsigned long lock_flags;
u32 i;
for (i = 0; i < dev->num_frames; i++)
if (dev->frame[i].state == F_UNUSED) {
dev->frame[i].state = F_QUEUED;
spin_lock_irqsave(&dev->queue_lock, lock_flags);
list_add_tail(&dev->frame[i].frame, &dev->inqueue);
spin_unlock_irqrestore(&dev->queue_lock, lock_flags);
}
}
/*
* em2820_release_buffers()
* free frame buffers
*/
void em2820_release_buffers(struct em2820 *dev)
{
if (dev->num_frames) {
rvfree(dev->frame[0].bufmem,
dev->num_frames * PAGE_ALIGN(dev->frame[0].buf.length));
dev->num_frames = 0;
}
}
/*
* em2820_read_reg_req()
* reads data from the usb device specifying bRequest
*/
int em2820_read_reg_req_len(struct em2820 *dev, u8 req, u16 reg,
char *buf, int len)
{
int ret, byte;
em2820_regdbg("req=%02x, reg=%02x ", req, reg);
ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0000, reg, buf, len, HZ);
if (reg_debug){
printk(ret < 0 ? " failed!\n" : "%02x values: ", ret);
for (byte = 0; byte < len; byte++) {
printk(" %02x", buf[byte]);
}
printk("\n");
}
return ret;
}
/*
* em2820_read_reg_req()
* reads data from the usb device specifying bRequest
*/
int em2820_read_reg_req(struct em2820 *dev, u8 req, u16 reg)
{
u8 val;
int ret;
em2820_regdbg("req=%02x, reg=%02x:", req, reg);
ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), req,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0000, reg, &val, 1, HZ);
if (reg_debug)
printk(ret < 0 ? " failed!\n" : "%02x\n", val);
if (ret < 0)
return ret;
return val;
}
int em2820_read_reg(struct em2820 *dev, u16 reg)
{
return em2820_read_reg_req(dev, USB_REQ_GET_STATUS, reg);
}
/*
* em2820_write_regs_req()
* sends data to the usb device, specifying bRequest
*/
int em2820_write_regs_req(struct em2820 *dev, u8 req, u16 reg, char *buf,
int len)
{
int ret;
/*usb_control_msg seems to expect a kmalloced buffer */
unsigned char *bufs = kmalloc(len, GFP_KERNEL);
em2820_regdbg("req=%02x reg=%02x:", req, reg);
if (reg_debug) {
int i;
for (i = 0; i < len; ++i)
printk (" %02x", (unsigned char)buf[i]);
printk ("\n");
}
if (!bufs)
return -ENOMEM;
memcpy(bufs, buf, len);
ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), req,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0000, reg, bufs, len, HZ);
mdelay(5); /* FIXME: magic number */
kfree(bufs);
return ret;
}
int em2820_write_regs(struct em2820 *dev, u16 reg, char *buf, int len)
{
return em2820_write_regs_req(dev, USB_REQ_GET_STATUS, reg, buf, len);
}
/*
* em2820_write_reg_bits()
* sets only some bits (specified by bitmask) of a register, by first reading
* the actual value
*/
int em2820_write_reg_bits(struct em2820 *dev, u16 reg, u8 val,
u8 bitmask)
{
int oldval;
u8 newval;
if ((oldval = em2820_read_reg(dev, reg)) < 0)
return oldval;
newval = (((u8) oldval) & ~bitmask) | (val & bitmask);
return em2820_write_regs(dev, reg, &newval, 1);
}
/*
* em2820_write_ac97()
* write a 16 bit value to the specified AC97 address (LSB first!)
*/
int em2820_write_ac97(struct em2820 *dev, u8 reg, u8 * val)
{
int ret;
u8 addr = reg & 0x7f;
if ((ret = em2820_write_regs(dev, AC97LSB_REG, val, 2)) < 0)
return ret;
if ((ret = em2820_write_regs(dev, AC97ADDR_REG, &addr, 1)) < 0)
return ret;
if ((ret = em2820_read_reg(dev, AC97BUSY_REG)) < 0)
return ret;
else if (((u8) ret) & 0x01) {
em2820_warn ("AC97 command still being exectuted: not handled properly!\n");
}
return 0;
}
int em2820_audio_analog_set(struct em2820 *dev)
{
char s[2] = { 0x00, 0x00 };
s[0] |= 0x1f - dev->volume;
s[1] |= 0x1f - dev->volume;
if (dev->mute)
s[1] |= 0x80;
return em2820_write_ac97(dev, MASTER_AC97, s);
}
int em2820_colorlevels_set_default(struct em2820 *dev)
{
em2820_write_regs(dev, YGAIN_REG, "\x10", 1); /* contrast */
em2820_write_regs(dev, YOFFSET_REG, "\x00", 1); /* brightness */
em2820_write_regs(dev, UVGAIN_REG, "\x10", 1); /* saturation */
em2820_write_regs(dev, UOFFSET_REG, "\x00", 1);
em2820_write_regs(dev, VOFFSET_REG, "\x00", 1);
em2820_write_regs(dev, SHARPNESS_REG, "\x00", 1);
em2820_write_regs(dev, GAMMA_REG, "\x20", 1);
em2820_write_regs(dev, RGAIN_REG, "\x20", 1);
em2820_write_regs(dev, GGAIN_REG, "\x20", 1);
em2820_write_regs(dev, BGAIN_REG, "\x20", 1);
em2820_write_regs(dev, ROFFSET_REG, "\x00", 1);
em2820_write_regs(dev, GOFFSET_REG, "\x00", 1);
return em2820_write_regs(dev, BOFFSET_REG, "\x00", 1);
}
int em2820_capture_start(struct em2820 *dev, int start)
{
int ret;
/* FIXME: which is the best order? */
/* video registers are sampled by VREF */
if ((ret = em2820_write_reg_bits(dev, USBSUSP_REG, start ? 0x10 : 0x00,
0x10)) < 0)
return ret;
/* enable video capture */
return em2820_write_regs(dev, VINENABLE_REG, start ? "\x67" : "\x27", 1);
}
int em2820_outfmt_set_yuv422(struct em2820 *dev)
{
em2820_write_regs(dev, OUTFMT_REG, "\x34", 1);
em2820_write_regs(dev, VINMODE_REG, "\x10", 1);
return em2820_write_regs(dev, VINCTRL_REG, "\x11", 1);
}
int em2820_accumulator_set(struct em2820 *dev, u8 xmin, u8 xmax, u8 ymin,
u8 ymax)
{
em2820_coredbg("em2820 Scale: (%d,%d)-(%d,%d)\n", xmin, ymin, xmax, ymax);
em2820_write_regs(dev, XMIN_REG, &xmin, 1);
em2820_write_regs(dev, XMAX_REG, &xmax, 1);
em2820_write_regs(dev, YMIN_REG, &ymin, 1);
return em2820_write_regs(dev, YMAX_REG, &ymax, 1);
}
int em2820_capture_area_set(struct em2820 *dev, u8 hstart, u8 vstart,
u16 width, u16 height)
{
u8 cwidth = width;
u8 cheight = height;
u8 overflow = (height >> 7 & 0x02) | (width >> 8 & 0x01);
em2820_coredbg("em2820 Area Set: (%d,%d)\n", (width | (overflow & 2) << 7),
(height | (overflow & 1) << 8));
em2820_write_regs(dev, HSTART_REG, &hstart, 1);
em2820_write_regs(dev, VSTART_REG, &vstart, 1);
em2820_write_regs(dev, CWIDTH_REG, &cwidth, 1);
em2820_write_regs(dev, CHEIGHT_REG, &cheight, 1);
return em2820_write_regs(dev, OFLOW_REG, &overflow, 1);
}
int em2820_scaler_set(struct em2820 *dev, u16 h, u16 v)
{
u8 buf[2];
buf[0] = h;
buf[1] = h >> 8;
em2820_write_regs(dev, HSCALELOW_REG, (char *)buf, 2);
buf[0] = v;
buf[1] = v >> 8;
em2820_write_regs(dev, VSCALELOW_REG, (char *)buf, 2);
/* when H and V mixershould be used? */
/* return em2820_write_reg_bits(dev, COMPR_REG, (h ? 0x20 : 0x00) | (v ? 0x10 : 0x00), 0x30); */
/* it seems that both H and V scalers must be active to work correctly */
return em2820_write_reg_bits(dev, COMPR_REG, h
|| v ? 0x30 : 0x00, 0x30);
}
/* FIXME: this only function read values from dev */
int em2820_resolution_set(struct em2820 *dev)
{
int width, height;
width = norm_maxw(dev);
height = norm_maxh(dev) >> 1;
em2820_outfmt_set_yuv422(dev);
em2820_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2);
em2820_capture_area_set(dev, 0, 0, width >> 2, height >> 2);
return em2820_scaler_set(dev, dev->hscale, dev->vscale);
}
/******************* isoc transfer handling ****************************/
#ifdef ENABLE_DEBUG_ISOC_FRAMES
static void em2820_isoc_dump(struct urb *urb, struct pt_regs *regs)
{
int len = 0;
int ntrans = 0;
int i;
printk(KERN_DEBUG "isocIrq: sf=%d np=%d ec=%x\n",
urb->start_frame, urb->number_of_packets,
urb->error_count);
for (i = 0; i < urb->number_of_packets; i++) {
unsigned char *buf =
urb->transfer_buffer +
urb->iso_frame_desc[i].offset;
int alen = urb->iso_frame_desc[i].actual_length;
if (alen > 0) {
if (buf[0] == 0x88) {
ntrans++;
len += alen;
} else if (buf[0] == 0x22) {
printk(KERN_DEBUG
"= l=%d nt=%d bpp=%d\n",
len - 4 * ntrans, ntrans,
ntrans == 0 ? 0 : len / ntrans);
ntrans = 1;
len = alen;
} else
printk(KERN_DEBUG "!\n");
}
printk(KERN_DEBUG " n=%d s=%d al=%d %x\n", i,
urb->iso_frame_desc[i].status,
urb->iso_frame_desc[i].actual_length,
(unsigned int)
*((unsigned char *)(urb->transfer_buffer +
urb->iso_frame_desc[i].
offset)));
}
}
#endif
static inline int em2820_isoc_video(struct em2820 *dev,struct em2820_frame_t **f,
unsigned long *lock_flags, unsigned char buf)
{
if (!(buf & 0x01)) {
if ((*f)->state == F_GRABBING) {
/*previous frame is incomplete */
if ((*f)->fieldbytesused < dev->field_size) {
(*f)->state = F_ERROR;
em2820_isocdbg ("dropping incomplete bottom field (%i missing bytes)",
dev->field_size-(*f)->fieldbytesused);
} else {
(*f)->state = F_DONE;
(*f)->buf.bytesused = dev->frame_size;
}
}
if ((*f)->state == F_DONE || (*f)->state == F_ERROR) {
/* move current frame to outqueue and get next free buffer from inqueue */
spin_lock_irqsave(&dev-> queue_lock, *lock_flags);
list_move_tail(&(*f)->frame, &dev->outqueue);
if (!list_empty(&dev->inqueue))
(*f) = list_entry(dev-> inqueue.next,
struct em2820_frame_t,frame);
else
(*f) = NULL;
spin_unlock_irqrestore(&dev->queue_lock,*lock_flags);
}
if (!(*f)) {
em2820_isocdbg ("new frame but no buffer is free");
return -1;
}
do_gettimeofday(&(*f)->buf.timestamp);
(*f)->buf.sequence = ++dev->frame_count;
(*f)->buf.field = V4L2_FIELD_INTERLACED;
(*f)->state = F_GRABBING;
(*f)->buf.bytesused = 0;
(*f)->top_field = 1;
(*f)->fieldbytesused = 0;
} else {
/* acquiring bottom field */
if ((*f)->state == F_GRABBING) {
if (!(*f)->top_field) {
(*f)->state = F_ERROR;
em2820_isocdbg ("unexpected begin of bottom field; discarding it");
} else if ((*f)-> fieldbytesused < dev->field_size - 172) {
(*f)->state = F_ERROR;
em2820_isocdbg ("dropping incomplete top field (%i missing bytes)",
dev->field_size-(*f)->fieldbytesused);
} else {
(*f)->top_field = 0;
(*f)->fieldbytesused = 0;
}
}
}
return (0);
}
static inline void em2820_isoc_video_copy(struct em2820 *dev,
struct em2820_frame_t **f, unsigned char *buf, int len)
{
void *fieldstart, *startwrite, *startread;
int linesdone, currlinedone, offset, lencopy,remain;
if ((*f)->fieldbytesused + len > dev->field_size)
len =dev->field_size - (*f)->fieldbytesused;
remain = len;
startread = buf + 4;
if ((*f)->top_field)
fieldstart = (*f)->bufmem;
else
fieldstart = (*f)->bufmem + dev->bytesperline;
linesdone = (*f)->fieldbytesused / dev->bytesperline;
currlinedone = (*f)->fieldbytesused % dev->bytesperline;
offset = linesdone * dev->bytesperline * 2 + currlinedone;
startwrite = fieldstart + offset;
lencopy = dev->bytesperline - currlinedone;
lencopy = lencopy > remain ? remain : lencopy;
memcpy(startwrite, startread, lencopy);
remain -= lencopy;
while (remain > 0) {
startwrite += lencopy + dev->bytesperline;
startread += lencopy;
if (dev->bytesperline > remain)
lencopy = remain;
else
lencopy = dev->bytesperline;
memcpy(startwrite, startread, lencopy);
remain -= lencopy;
}
(*f)->fieldbytesused += len;
}
/*
* em2820_isoIrq()
* handles the incoming isoc urbs and fills the frames from our inqueue
*/
void em2820_isocIrq(struct urb *urb, struct pt_regs *regs)
{
struct em2820 *dev = urb->context;
int i, status;
struct em2820_frame_t **f;
unsigned long lock_flags;
if (!dev)
return;
#ifdef ENABLE_DEBUG_ISOC_FRAMES
if (isoc_debug>1)
em2820_isoc_dump(urb, regs);
#endif
if (urb->status == -ENOENT)
return;
f = &dev->frame_current;
if (dev->stream == STREAM_INTERRUPT) {
dev->stream = STREAM_OFF;
if ((*f))
(*f)->state = F_QUEUED;
em2820_isocdbg("stream interrupted");
wake_up_interruptible(&dev->wait_stream);
}
if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
return;
if (dev->stream == STREAM_ON && !list_empty(&dev->inqueue)) {
if (!(*f))
(*f) = list_entry(dev->inqueue.next,
struct em2820_frame_t, frame);
for (i = 0; i < urb->number_of_packets; i++) {
unsigned char *buf = urb->transfer_buffer +
urb->iso_frame_desc[i].offset;
int len = urb->iso_frame_desc[i].actual_length - 4;
if (urb->iso_frame_desc[i].status) {
em2820_isocdbg("data error: [%d] len=%d, status=%d", i,
urb->iso_frame_desc[i].actual_length,
urb->iso_frame_desc[i].status);
continue;
}
if (urb->iso_frame_desc[i].actual_length <= 0) {
em2820_isocdbg("packet %d is empty",i);
continue;
}
if (urb->iso_frame_desc[i].actual_length >
dev->max_pkt_size) {
em2820_isocdbg("packet bigger than packet size");
continue;
}
/*new frame */
if (buf[0] == 0x22 && buf[1] == 0x5a) {
em2820_isocdbg("Video frame, length=%i!",len);
if (em2820_isoc_video(dev,f,&lock_flags,buf[2]))
break;
} else if (buf[0]==0x33 && buf[1]==0x95 && buf[2]==0x00) {
em2820_isocdbg("VBI HEADER!!!");
}
/* actual copying */
if ((*f)->state == F_GRABBING) {
em2820_isoc_video_copy(dev,f,buf, len);
}
}
}
for (i = 0; i < urb->number_of_packets; i++) {
urb->iso_frame_desc[i].status = 0;
urb->iso_frame_desc[i].actual_length = 0;
}
urb->status = 0;
if ((status = usb_submit_urb(urb, GFP_ATOMIC))) {
em2820_errdev("resubmit of urb failed (error=%i)\n", status);
dev->state |= DEV_MISCONFIGURED;
}
wake_up_interruptible(&dev->wait_frame);
return;
}
/*
* em2820_uninit_isoc()
* deallocates the buffers and urbs allocated during em2820_init_iosc()
*/
void em2820_uninit_isoc(struct em2820 *dev)
{
int i;
for (i = 0; i < EM2820_NUM_BUFS; i++) {
if (dev->urb[i]) {
usb_kill_urb(dev->urb[i]);
usb_free_urb(dev->urb[i]);
}
dev->urb[i] = NULL;
if (dev->transfer_buffer[i])
kfree(dev->transfer_buffer[i]);
dev->transfer_buffer[i] = NULL;
}
em2820_capture_start(dev, 0);
}
/*
* em2820_init_isoc()
* allocates transfer buffers and submits the urbs for isoc transfer
*/
int em2820_init_isoc(struct em2820 *dev)
{
/* change interface to 3 which allowes the biggest packet sizes */
int i, errCode;
const int sb_size = EM2820_NUM_PACKETS * dev->max_pkt_size;
/* reset streaming vars */
dev->frame_current = NULL;
dev->frame_count = 0;
/* allocate urbs */
for (i = 0; i < EM2820_NUM_BUFS; i++) {
struct urb *urb;
int j, k;
/* allocate transfer buffer */
dev->transfer_buffer[i] = kmalloc(sb_size, GFP_KERNEL);
if (!dev->transfer_buffer[i]) {
em2820_errdev
("unable to allocate %i bytes for transfer buffer %i\n",
sb_size, i);
em2820_uninit_isoc(dev);
return -ENOMEM;
}
memset(dev->transfer_buffer[i], 0, sb_size);
urb = usb_alloc_urb(EM2820_NUM_PACKETS, GFP_KERNEL);
if (urb) {
urb->dev = dev->udev;
urb->context = dev;
urb->pipe = usb_rcvisocpipe(dev->udev, 0x82);
urb->transfer_flags = URB_ISO_ASAP;
urb->interval = 1;
urb->transfer_buffer = dev->transfer_buffer[i];
urb->complete = em2820_isocIrq;
urb->number_of_packets = EM2820_NUM_PACKETS;
urb->transfer_buffer_length = sb_size;
for (j = k = 0; j < EM2820_NUM_PACKETS;
j++, k += dev->max_pkt_size) {
urb->iso_frame_desc[j].offset = k;
urb->iso_frame_desc[j].length =
dev->max_pkt_size;
}
dev->urb[i] = urb;
} else {
em2820_errdev("cannot alloc urb %i\n", i);
em2820_uninit_isoc(dev);
return -ENOMEM;
}
}
/* submit urbs */
for (i = 0; i < EM2820_NUM_BUFS; i++) {
errCode = usb_submit_urb(dev->urb[i], GFP_KERNEL);
if (errCode) {
em2820_errdev("submit of urb %i failed (error=%i)\n", i,
errCode);
em2820_uninit_isoc(dev);
return errCode;
}
}
return 0;
}
int em2820_set_alternate(struct em2820 *dev)
{
int errCode, prev_alt = dev->alt;
dev->alt = alt;
if (dev->alt == 0) {
int i;
unsigned int min_pkt_size = dev->field_size / 137; /* FIXME: empiric magic number */
em2820_coredbg("minimum isoc packet size: %u", min_pkt_size);
dev->alt = 7;
for (i = 1; i < EM2820_MAX_ALT; i += 2) /* FIXME: skip even alternate: why do they not work? */
if (dev->alt_max_pkt_size[i] >= min_pkt_size) {
dev->alt = i;
break;
}
}
if (dev->alt != prev_alt) {
dev->max_pkt_size = dev->alt_max_pkt_size[dev->alt];
em2820_coredbg("setting alternate %d with wMaxPacketSize=%u", dev->alt,
dev->max_pkt_size);
errCode = usb_set_interface(dev->udev, 0, dev->alt);
if (errCode < 0) {
em2820_errdev
("cannot change alternate number to %d (error=%i)\n",
dev->alt, errCode);
return errCode;
}
}
return 0;
}

443
drivers/media/video/em28xx/em28xx-i2c.c Normal file
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/*
em2820-i2c.c - driver for Empia EM2820/2840 USB video capture devices
Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
Ludovico Cavedon <cavedon@sssup.it>
Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
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/kernel.h>
#include <linux/usb.h>
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <media/tuner.h>
#include <linux/video_decoder.h>
/* To be moved to compat.h */
#if !defined(I2C_HW_B_EM2820)
#define I2C_HW_B_EM2820 I2C_HW_B_BT848
#endif
#include "em2820.h"
/* ----------------------------------------------------------- */
static unsigned int i2c_scan = 0;
module_param(i2c_scan, int, 0444);
MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
static unsigned int i2c_debug = 0;
module_param(i2c_debug, int, 0644);
MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
#define dprintk(fmt, args...) if (i2c_debug) do {\
printk(KERN_DEBUG "%s: %s: " fmt "\n",\
dev->name, __FUNCTION__ , ##args); } while (0)
#define dprintk1(fmt, args...) if (i2c_debug) do{ \
printk(KERN_DEBUG "%s: %s: " fmt, \
dev->name, __FUNCTION__ , ##args); } while (0)
#define dprintk2(fmt, args...) if (i2c_debug) do {\
printk(fmt , ##args); } while (0)
/*
* i2c_send_bytes()
* untested for more than 4 bytes
*/
static int i2c_send_bytes(void *data, unsigned char addr, char *buf, short len,
int stop)
{
int wrcount = 0;
struct em2820 *dev = (struct em2820 *)data;
wrcount = dev->em2820_write_regs_req(dev, stop ? 2 : 3, addr, buf, len);
return wrcount;
}
/*
* i2c_recv_byte()
* read a byte from the i2c device
*/
static int i2c_recv_bytes(struct em2820 *dev, unsigned char addr, char *buf,
int len)
{
int ret;
ret = dev->em2820_read_reg_req_len(dev, 2, addr, buf, len);
if (ret < 0) {
em2820_warn("reading i2c device failed (error=%i)\n", ret);
return ret;
}
if (dev->em2820_read_reg(dev, 0x5) != 0)
return -ENODEV;
return ret;
}
/*
* i2c_check_for_device()
* check if there is a i2c_device at the supplied address
*/
static int i2c_check_for_device(struct em2820 *dev, unsigned char addr)
{
char msg;
int ret;
msg = addr;
ret = dev->em2820_read_reg_req(dev, 2, addr);
if (ret < 0) {
em2820_warn("reading from i2c device failed (error=%i)\n", ret);
return ret;
}
if (dev->em2820_read_reg(dev, 0x5) != 0)
return -ENODEV;
return 0;
}
/*
* em2820_i2c_xfer()
* the main i2c transfer function
*/
static int em2820_i2c_xfer(struct i2c_adapter *i2c_adap,
struct i2c_msg msgs[], int num)
{
struct em2820 *dev = i2c_adap->algo_data;
int addr, rc, i, byte;
if (num <= 0)
return 0;
for (i = 0; i < num; i++) {
addr = msgs[i].addr << 1;
dprintk1("%s %s addr=%x len=%d:",
(msgs[i].flags & I2C_M_RD) ? "read" : "write",
i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len);
if (!msgs[i].len) { /* no len: check only for device presence */
rc = i2c_check_for_device(dev, addr);
if (rc < 0) {
dprintk2(" no device\n");
return rc;
}
}
if (msgs[i].flags & I2C_M_RD) {
/* read bytes */
rc = i2c_recv_bytes(dev, addr, msgs[i].buf,
msgs[i].len);
if (i2c_debug) {
for (byte = 0; byte < msgs[i].len; byte++) {
printk(" %02x", msgs[i].buf[byte]);
}
}
} else {
/* write bytes */
if (i2c_debug) {
for (byte = 0; byte < msgs[i].len; byte++)
printk(" %02x", msgs[i].buf[byte]);
}
rc = i2c_send_bytes(dev, addr, msgs[i].buf, msgs[i].len,
i == num - 1);
if (rc < 0)
goto err;
}
if (i2c_debug)
printk("\n");
}
return num;
err:
dprintk2(" ERROR: %i\n", rc);
return rc;
}
static int em2820_i2c_eeprom(struct em2820 *dev, unsigned char *eedata, int len)
{
unsigned char buf, *p = eedata;
struct em2820_eeprom *em_eeprom = (void *)eedata;
int i, err, size = len, block;
dev->i2c_client.addr = 0xa0 >> 1;
buf = 0;
if (1 != (err = i2c_master_send(&dev->i2c_client, &buf, 1))) {
printk(KERN_INFO "%s: Huh, no eeprom present (err=%d)?\n",
dev->name, err);
return -1;
}
while (size > 0) {
if (size > 16)
block = 16;
else
block = size;
if (block !=
(err = i2c_master_recv(&dev->i2c_client, p, block))) {
printk(KERN_WARNING
"%s: i2c eeprom read error (err=%d)\n",
dev->name, err);
return -1;
}
size -= block;
p += block;
}
for (i = 0; i < len; i++) {
if (0 == (i % 16))
printk(KERN_INFO "%s: i2c eeprom %02x:", dev->name, i);
printk(" %02x", eedata[i]);
if (15 == (i % 16))
printk("\n");
}
printk(KERN_INFO "EEPROM ID= 0x%08x\n", em_eeprom->id);
printk(KERN_INFO "Vendor/Product ID= %04x:%04x\n", em_eeprom->vendor_ID,
em_eeprom->product_ID);
switch (em_eeprom->chip_conf >> 4 & 0x3) {
case 0:
printk(KERN_INFO "No audio on board.\n");
break;
case 1:
printk(KERN_INFO "AC97 audio (5 sample rates)\n");
break;
case 2:
printk(KERN_INFO "I2S audio, sample rate=32k\n");
break;
case 3:
printk(KERN_INFO "I2S audio, 3 sample rates\n");
break;
}
if (em_eeprom->chip_conf & 1 << 3)
printk(KERN_INFO "USB Remote wakeup capable\n");
if (em_eeprom->chip_conf & 1 << 2)
printk(KERN_INFO "USB Self power capable\n");
switch (em_eeprom->chip_conf & 0x3) {
case 0:
printk(KERN_INFO "500mA max power\n");
break;
case 1:
printk(KERN_INFO "400mA max power\n");
break;
case 2:
printk(KERN_INFO "300mA max power\n");
break;
case 3:
printk(KERN_INFO "200mA max power\n");
break;
}
return 0;
}
/* ----------------------------------------------------------- */
/*
* algo_control()
*/
static int algo_control(struct i2c_adapter *adapter,
unsigned int cmd, unsigned long arg)
{
return 0;
}
/*
* functionality()
*/
static u32 functionality(struct i2c_adapter *adap)
{
return I2C_FUNC_SMBUS_EMUL;
}
#ifndef I2C_PEC
static void inc_use(struct i2c_adapter *adap)
{
MOD_INC_USE_COUNT;
}
static void dec_use(struct i2c_adapter *adap)
{
MOD_DEC_USE_COUNT;
}
#endif
static int em2820_set_tuner(int check_eeprom, struct i2c_client *client)
{
struct em2820 *dev = client->adapter->algo_data;
struct tuner_setup tun_setup;
/* tuner */
if (dev->has_tuner) {
tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
tun_setup.type = dev->tuner_type;
tun_setup.addr = dev->tuner_addr;
em2820_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
}
return (0);
}
/*
* attach_inform()
* gets called when a device attaches to the i2c bus
* does some basic configuration
*/
static int attach_inform(struct i2c_client *client)
{
struct em2820 *dev = client->adapter->algo_data;
dprintk("address %x", client->addr << 1);
switch (client->addr << 1) {
case 0x68:
em2820_i2c_call_clients(dev, TDA9887_SET_CONFIG, &dev->tda9887_conf);
break;
case 0x4a:
dprintk1("attach_inform: saa7113 detected.\n");
break;
case 0xa0:
dprintk1("attach_inform: eeprom detected.\n");
break;
case 0x80:
case 0x88:
dprintk1("attach_inform: msp34xx detected.\n");
break;
case 0xb8:
case 0xba:
dprintk1("attach_inform: tvp5150 detected.\n");
break;
default:
dev->tuner_addr = client->addr;
em2820_set_tuner(-1, client);
}
return 0;
}
static struct i2c_algorithm em2820_algo = {
.name = "em2820",
.id = I2C_HW_B_EM2820,
.master_xfer = em2820_i2c_xfer,
.algo_control = algo_control,
.functionality = functionality,
};
static struct i2c_adapter em2820_adap_template = {
#ifdef I2C_PEC
.owner = THIS_MODULE,
#else
.inc_use = inc_use,
.dec_use = dec_use,
#endif
#ifdef I2C_CLASS_TV_ANALOG
.class = I2C_CLASS_TV_ANALOG,
#endif
.name = "em2820",
.id = I2C_HW_B_EM2820,
.algo = &em2820_algo,
.client_register = attach_inform,
};
static struct i2c_client em2820_client_template = {
.name = "em2820 internal",
.flags = I2C_CLIENT_ALLOW_USE,
};
/* ----------------------------------------------------------- */
/*
* i2c_devs
* incomplete list of known devices
*/
static char *i2c_devs[128] = {
[0x4a >> 1] = "saa7113h",
[0x60 >> 1] = "remote IR sensor",
[0x86 >> 1] = "tda9887",
[0x80 >> 1] = "msp34xx",
[0x88 >> 1] = "msp34xx",
[0xa0 >> 1] = "eeprom",
[0xb8 >> 1] = "tvp5150a",
[0xba >> 1] = "tvp5150a",
[0xc0 >> 1] = "tuner (analog)",
[0xc2 >> 1] = "tuner (analog)",
[0xc4 >> 1] = "tuner (analog)",
[0xc6 >> 1] = "tuner (analog)",
};
/*
* do_i2c_scan()
* check i2c address range for devices
*/
static void do_i2c_scan(char *name, struct i2c_client *c)
{
unsigned char buf;
int i, rc;
for (i = 0; i < 128; i++) {
c->addr = i;
rc = i2c_master_recv(c, &buf, 0);
if (rc < 0)
continue;
printk(KERN_INFO "%s: found device @ 0x%x [%s]", name,
i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
}
}
/*
* em2820_i2c_call_clients()
* send commands to all attached i2c devices
*/
void em2820_i2c_call_clients(struct em2820 *dev, unsigned int cmd, void *arg)
{
BUG_ON(NULL == dev->i2c_adap.algo_data);
i2c_clients_command(&dev->i2c_adap, cmd, arg);
}
/*
* em2820_i2c_register()
* register i2c bus
*/
int em2820_i2c_register(struct em2820 *dev)
{
BUG_ON(!dev->em2820_write_regs || !dev->em2820_read_reg);
BUG_ON(!dev->em2820_write_regs_req || !dev->em2820_read_reg_req);
dev->i2c_adap = em2820_adap_template;
dev->i2c_adap.dev.parent = &dev->udev->dev;
strcpy(dev->i2c_adap.name, dev->name);
dev->i2c_adap.algo_data = dev;
i2c_add_adapter(&dev->i2c_adap);
dev->i2c_client = em2820_client_template;
dev->i2c_client.adapter = &dev->i2c_adap;
em2820_i2c_eeprom(dev, dev->eedata, sizeof(dev->eedata));
if (i2c_scan)
do_i2c_scan(dev->name, &dev->i2c_client);
return 0;
}
/*
* em2820_i2c_unregister()
* unregister i2c_bus
*/
int em2820_i2c_unregister(struct em2820 *dev)
{
i2c_del_adapter(&dev->i2c_adap);
return 0;
}

1815
drivers/media/video/em28xx/em28xx-video.c Normal file
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File diff suppressed because it is too large Load Diff

479
drivers/media/video/em28xx/em28xx.h Normal file
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/*
em2820-cards.c - driver for Empia EM2820/2840 USB video capture devices
Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
Ludovico Cavedon <cavedon@sssup.it>
Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
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.
*/
#ifndef _EM2820_H
#define _EM2820_H
#include <linux/videodev.h>
#include <linux/i2c.h>
/* maximum number of frames that can be queued */
#define EM2820_NUM_FRAMES 5
/* number of frames that get used for v4l2_read() */
#define EM2820_NUM_READ_FRAMES 2
/* number of buffers for isoc transfers */
#define EM2820_NUM_BUFS 5
/* number of packets for each buffer */
// windows requests only 40 packets .. so we better do the same
// this is what I found out for all alternate numbers there!
#define EM2820_NUM_PACKETS 40
/* packet size for each packet */
/* no longer needed: read from endpoint descriptor */
//#define EM2820_MAX_PACKET_SIZE 3072 //7
//#define EM2820_MAX_PACKET_SIZE 2892 //6
//#define EM2820_MAX_PACKET_SIZE 2580 //5
//#define EM2820_MAX_PACKET_SIZE 1448 //2
/* default alternate; 0 means choose the best */
#define EM2820_PINOUT 0
#define EM2820_MAX_ALT 7
#define EM2820_INTERLACED_DEFAULT 1
/*
#define (use usbview if you want to get the other alternate number infos)
#define
#define alternate number 2
#define Endpoint Address: 82
Direction: in
Attribute: 1
Type: Isoc
Max Packet Size: 1448
Interval: 125us
alternate number 7
Endpoint Address: 82
Direction: in
Attribute: 1
Type: Isoc
Max Packet Size: 3072
Interval: 125us
*/
/* time to wait when stopping the isoc transfer */
#define EM2820_URB_TIMEOUT msecs_to_jiffies(EM2820_NUM_BUFS * EM2820_NUM_PACKETS)
/* the various frame states */
enum em2820_frame_state {
F_UNUSED = 0,
F_QUEUED,
F_GRABBING,
F_DONE,
F_ERROR,
};
/* stream states */
enum em2820_stream_state {
STREAM_OFF,
STREAM_INTERRUPT,
STREAM_ON,
};
/* frames */
struct em2820_frame_t {
void *bufmem;
struct v4l2_buffer buf;
enum em2820_frame_state state;
struct list_head frame;
unsigned long vma_use_count;
int top_field;
int fieldbytesused;
};
/* io methods */
enum em2820_io_method {
IO_NONE,
IO_READ,
IO_MMAP,
};
/* inputs */
#define MAX_EM2820_INPUT 4
enum enum2820_itype {
EM2820_VMUX_COMPOSITE1 = 1,
EM2820_VMUX_COMPOSITE2,
EM2820_VMUX_COMPOSITE3,
EM2820_VMUX_COMPOSITE4,
EM2820_VMUX_SVIDEO,
EM2820_VMUX_TELEVISION,
EM2820_VMUX_CABLE,
EM2820_VMUX_DVB,
EM2820_VMUX_DEBUG,
EM2820_RADIO,
};
struct em2820_input {
enum enum2820_itype type;
unsigned int vmux;
unsigned int amux;
};
#define INPUT(nr) (&em2820_boards[dev->model].input[nr])
enum em2820_decoder {
EM2820_TVP5150,
EM2820_SAA7113,
EM2820_SAA7114
};
struct em2820_board {
char *name;
int vchannels;
int norm;
int tuner_type;
/* i2c flags */
unsigned int tda9887_conf;
unsigned int has_tuner:1;
unsigned int has_msp34xx:1;
enum em2820_decoder decoder;
struct em2820_input input[MAX_EM2820_INPUT];
};
struct em2820_eeprom {
u32 id; /* 0x9567eb1a */
u16 vendor_ID;
u16 product_ID;
u16 chip_conf;
u16 board_conf;
u16 string1, string2, string3;
u8 string_idx_table;
};
/* device states */
enum em2820_dev_state {
DEV_INITIALIZED = 0x01,
DEV_DISCONNECTED = 0x02,
DEV_MISCONFIGURED = 0x04,
};
/* tvnorms */
struct em2820_tvnorm {
char *name;
v4l2_std_id id;
/* mode for saa7113h */
int mode;
};
/* main device struct */
struct em2820 {
/* generic device properties */
char name[30]; /* name (including minor) of the device */
int model; /* index in the device_data struct */
int video_inputs; /* number of video inputs */
unsigned int has_tuner:1;
unsigned int has_msp34xx:1;
unsigned int has_tda9887:1;
enum em2820_decoder decoder;
int tuner_type; /* type of the tuner */
int tuner_addr; /* tuner address */
int tda9887_conf;
/* i2c i/o */
struct i2c_adapter i2c_adap;
struct i2c_client i2c_client;
/* video for linux */
int users; /* user count for exclusive use */
struct video_device *vdev; /* video for linux device struct */
struct video_picture vpic; /* picture settings only used to init saa7113h */
struct em2820_tvnorm *tvnorm; /* selected tv norm */
int ctl_freq; /* selected frequency */
unsigned int ctl_input; /* selected input */
unsigned int ctl_ainput; /* slected audio input */
int mute;
int volume;
/* frame properties */
struct em2820_frame_t frame[EM2820_NUM_FRAMES]; /* list of frames */
int num_frames; /* number of frames currently in use */
unsigned int frame_count; /* total number of transfered frames */
struct em2820_frame_t *frame_current; /* the frame that is being filled */
int width; /* current frame width */
int height; /* current frame height */
int frame_size; /* current frame size */
int field_size; /* current field size */
int bytesperline;
int hscale; /* horizontal scale factor (see datasheet) */
int vscale; /* vertical scale factor (see datasheet) */
int interlaced; /* 1=interlace fileds, 0=just top fileds */
int type;
/* states */
enum em2820_dev_state state;
enum em2820_stream_state stream;
enum em2820_io_method io;
/* locks */
struct semaphore lock, fileop_lock;
spinlock_t queue_lock;
struct list_head inqueue, outqueue;
wait_queue_head_t open, wait_frame, wait_stream;
struct video_device *vbi_dev;
unsigned char eedata[256];
/* usb transfer */
struct usb_device *udev; /* the usb device */
int alt; /* alternate */
int max_pkt_size; /* max packet size of isoc transaction */
unsigned int alt_max_pkt_size[EM2820_MAX_ALT + 1]; /* array of wMaxPacketSize */
struct urb *urb[EM2820_NUM_BUFS]; /* urb for isoc transfers */
char *transfer_buffer[EM2820_NUM_BUFS]; /* transfer buffers for isoc transfer */
/* helper funcs that call usb_control_msg */
int (*em2820_write_regs) (struct em2820 * dev, u16 reg, char *buf,
int len);
int (*em2820_read_reg) (struct em2820 * dev, u16 reg);
int (*em2820_read_reg_req_len) (struct em2820 * dev, u8 req, u16 reg,
char *buf, int len);
int (*em2820_write_regs_req) (struct em2820 * dev, u8 req, u16 reg,
char *buf, int len);
int (*em2820_read_reg_req) (struct em2820 * dev, u8 req, u16 reg);
};
/* Provided by em2820-i2c.c */
void em2820_i2c_call_clients(struct em2820 *dev, unsigned int cmd, void *arg);
int em2820_i2c_register(struct em2820 *dev);
int em2820_i2c_unregister(struct em2820 *dev);
/* Provided by em2820-core.c */
void em2820_print_ioctl(char *name, unsigned int cmd);
u32 em2820_request_buffers(struct em2820 *dev, u32 count);
void em2820_queue_unusedframes(struct em2820 *dev);
void em2820_release_buffers(struct em2820 *dev);
int em2820_read_reg_req_len(struct em2820 *dev, u8 req, u16 reg,
char *buf, int len);
int em2820_read_reg_req(struct em2820 *dev, u8 req, u16 reg);
int em2820_read_reg(struct em2820 *dev, u16 reg);
int em2820_write_regs_req(struct em2820 *dev, u8 req, u16 reg, char *buf,
int len);
int em2820_write_regs(struct em2820 *dev, u16 reg, char *buf, int len);
int em2820_write_reg_bits(struct em2820 *dev, u16 reg, u8 val,
u8 bitmask);
int em2820_write_ac97(struct em2820 *dev, u8 reg, u8 * val);
int em2820_audio_analog_set(struct em2820 *dev);
int em2820_colorlevels_set_default(struct em2820 *dev);
int em2820_capture_start(struct em2820 *dev, int start);
int em2820_outfmt_set_yuv422(struct em2820 *dev);
int em2820_accumulator_set(struct em2820 *dev, u8 xmin, u8 xmax, u8 ymin,
u8 ymax);
int em2820_capture_area_set(struct em2820 *dev, u8 hstart, u8 vstart,
u16 width, u16 height);
int em2820_scaler_set(struct em2820 *dev, u16 h, u16 v);
int em2820_resolution_set(struct em2820 *dev);
void em2820_isocIrq(struct urb *urb, struct pt_regs *regs);
int em2820_init_isoc(struct em2820 *dev);
void em2820_uninit_isoc(struct em2820 *dev);
int em2820_set_alternate(struct em2820 *dev);
/* Provided by em2820-cards.c */
extern void em2820_card_setup(struct em2820 *dev);
extern struct em2820_board em2820_boards[];
extern struct usb_device_id em2820_id_table[];
/* em2820 registers */
#define USBSUSP_REG 0x0c /* */
#define AUDIOSRC_REG 0x0e
#define XCLK_REG 0x0f
#define VINMODE_REG 0x10
#define VINCTRL_REG 0x11
#define VINENABLE_REG 0x12 /* */
#define GAMMA_REG 0x14
#define RGAIN_REG 0x15
#define GGAIN_REG 0x16
#define BGAIN_REG 0x17
#define ROFFSET_REG 0x18
#define GOFFSET_REG 0x19
#define BOFFSET_REG 0x1a
#define OFLOW_REG 0x1b
#define HSTART_REG 0x1c
#define VSTART_REG 0x1d
#define CWIDTH_REG 0x1e
#define CHEIGHT_REG 0x1f
#define YGAIN_REG 0x20
#define YOFFSET_REG 0x21
#define UVGAIN_REG 0x22
#define UOFFSET_REG 0x23
#define VOFFSET_REG 0x24
#define SHARPNESS_REG 0x25
#define COMPR_REG 0x26
#define OUTFMT_REG 0x27
#define XMIN_REG 0x28
#define XMAX_REG 0x29
#define YMIN_REG 0x2a
#define YMAX_REG 0x2b
#define HSCALELOW_REG 0x30
#define HSCALEHIGH_REG 0x31
#define VSCALELOW_REG 0x32
#define VSCALEHIGH_REG 0x33
#define AC97LSB_REG 0x40
#define AC97MSB_REG 0x41
#define AC97ADDR_REG 0x42
#define AC97BUSY_REG 0x43
/* em202 registers */
#define MASTER_AC97 0x02
#define VIDEO_AC97 0x14
/* register settings */
#define EM2820_AUDIO_SRC_TUNER 0xc0
#define EM2820_AUDIO_SRC_LINE 0x80
/* printk macros */
#define em2820_err(fmt, arg...) do {\
printk(KERN_ERR fmt , ##arg); } while (0)
#define em2820_errdev(fmt, arg...) do {\
printk(KERN_ERR "%s: "fmt,\
dev->name , ##arg); } while (0)
#define em2820_info(fmt, arg...) do {\
printk(KERN_INFO "%s: "fmt,\
dev->name , ##arg); } while (0)
#define em2820_warn(fmt, arg...) do {\
printk(KERN_WARNING "%s: "fmt,\
dev->name , ##arg); } while (0)
inline static int em2820_audio_source(struct em2820 *dev, int input)
{
return em2820_write_reg_bits(dev, AUDIOSRC_REG, input, 0xc0);
}
inline static int em2820_audio_usb_mute(struct em2820 *dev, int mute)
{
return em2820_write_reg_bits(dev, XCLK_REG, mute ? 0x00 : 0x80, 0x80);
}
inline static int em2820_audio_analog_setup(struct em2820 *dev)
{
/* unmute video mixer with default volume level */
return em2820_write_ac97(dev, VIDEO_AC97, "\x08\x08");
}
inline static int em2820_compression_disable(struct em2820 *dev)
{
/* side effect of disabling scaler and mixer */
return em2820_write_regs(dev, COMPR_REG, "\x00", 1);
}
inline static int em2820_contrast_get(struct em2820 *dev)
{
return em2820_read_reg(dev, YGAIN_REG) & 0x1f;
}
inline static int em2820_brightness_get(struct em2820 *dev)
{
return em2820_read_reg(dev, YOFFSET_REG);
}
inline static int em2820_saturation_get(struct em2820 *dev)
{
return em2820_read_reg(dev, UVGAIN_REG) & 0x1f;
}
inline static int em2820_u_balance_get(struct em2820 *dev)
{
return em2820_read_reg(dev, UOFFSET_REG);
}
inline static int em2820_v_balance_get(struct em2820 *dev)
{
return em2820_read_reg(dev, VOFFSET_REG);
}
inline static int em2820_gamma_get(struct em2820 *dev)
{
return em2820_read_reg(dev, GAMMA_REG) & 0x3f;
}
inline static int em2820_contrast_set(struct em2820 *dev, s32 val)
{
u8 tmp = (u8) val;
return em2820_write_regs(dev, YGAIN_REG, &tmp, 1);
}
inline static int em2820_brightness_set(struct em2820 *dev, s32 val)
{
u8 tmp = (u8) val;
return em2820_write_regs(dev, YOFFSET_REG, &tmp, 1);
}
inline static int em2820_saturation_set(struct em2820 *dev, s32 val)
{
u8 tmp = (u8) val;
return em2820_write_regs(dev, UVGAIN_REG, &tmp, 1);
}
inline static int em2820_u_balance_set(struct em2820 *dev, s32 val)
{
u8 tmp = (u8) val;
return em2820_write_regs(dev, UOFFSET_REG, &tmp, 1);
}
inline static int em2820_v_balance_set(struct em2820 *dev, s32 val)
{
u8 tmp = (u8) val;
return em2820_write_regs(dev, VOFFSET_REG, &tmp, 1);
}
inline static int em2820_gamma_set(struct em2820 *dev, s32 val)
{
u8 tmp = (u8) val;
return em2820_write_regs(dev, GAMMA_REG, &tmp, 1);
}
/*FIXME: maxw should be dependent of alt mode */
#define norm_maxw(dev) 720
inline static unsigned int norm_maxh(struct em2820 *dev)
{
return (dev->tvnorm->id & V4L2_STD_625_50) ? 576 : 480;
}
#endif

351
drivers/media/video/tvp5150.c
View File

@ -35,6 +35,47 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
printk(format , ##args); \
} while (0)
/* supported controls */
static struct v4l2_queryctrl tvp5150_qctrl[] = {
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 0,
.flags = 0,
}, {
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = 0,
.maximum = 255,
.step = 0x1,
.default_value = 0x10,
.flags = 0,
}, {
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Saturation",
.minimum = 0,
.maximum = 255,
.step = 0x1,
.default_value = 0x10,
.flags = 0,
}, {
.id = V4L2_CID_HUE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Hue",
.minimum = -128,
.maximum = 127,
.step = 0x1,
.default_value = 0x10,
.flags = 0,
}
};
struct tvp5150 {
struct i2c_client *client;
@ -73,7 +114,7 @@ static inline void tvp5150_write(struct i2c_client *c, unsigned char addr,
buffer[0] = addr;
buffer[1] = value;
dprintk(1,"tvp5150: writing 0x%02x 0x%02x\n",buffer[0],buffer[1]);
dprintk(1, "tvp5150: writing 0x%02x 0x%02x\n", buffer[0], buffer[1]);
if (2 != (rc = i2c_master_send(c, buffer, 2)))
dprintk(0, "i2c i/o error: rc == %d (should be 2)\n", rc);
}
@ -398,28 +439,11 @@ static inline void tvp5150_selmux(struct i2c_client *c,
enum tvp5150_input input)
{
struct tvp5150 *decoder = i2c_get_clientdata(c);
int tvp_input;
/* FIXME: It is dependent of basic driver */
switch (input)
{
case 2:
tvp_input=TVP5150_ANALOG_CH0;
break;
case 0:
tvp_input=TVP5150_ANALOG_CH1;
break;
case 1:
tvp_input=TVP5150_SVIDEO;
break;
default:
tvp_input=TVP5150_BLACK_SCREEN;
}
if (!decoder->enable)
tvp_input|=TVP5150_BLACK_SCREEN;
input |= TVP5150_BLACK_SCREEN;
tvp5150_write(c, TVP5150_VD_IN_SRC_SEL_1, tvp_input);
tvp5150_write(c, TVP5150_VD_IN_SRC_SEL_1, input);
};
static inline void tvp5150_reset(struct i2c_client *c)
@ -432,7 +456,7 @@ static inline void tvp5150_reset(struct i2c_client *c)
tvp5150_write(c, TVP5150_ANAL_CHL_CTL, 0x15);
/* Normal Operation */
// tvp5150_write(c, TVP5150_OP_MODE_CTL, 0x00);
// tvp5150_write(c, TVP5150_OP_MODE_CTL, 0x00);
/* Activate YCrCb output 0x9 or 0xd ? */
tvp5150_write(c, TVP5150_MISC_CTL, 0x6f);
@ -458,6 +482,50 @@ static inline void tvp5150_reset(struct i2c_client *c)
tvp5150_write(c, TVP5150_HUE_CTL, (decoder->hue - 32768) >> 8);
};
static int tvp5150_get_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/* struct tvp5150 *decoder = i2c_get_clientdata(c); */
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->value = tvp5150_read(c, TVP5150_BRIGHT_CTL);
return 0;
case V4L2_CID_CONTRAST:
ctrl->value = tvp5150_read(c, TVP5150_CONTRAST_CTL);
return 0;
case V4L2_CID_SATURATION:
ctrl->value = tvp5150_read(c, TVP5150_SATURATION_CTL);
return 0;
case V4L2_CID_HUE:
ctrl->value = tvp5150_read(c, TVP5150_HUE_CTL);
return 0;
default:
return -EINVAL;
}
}
static int tvp5150_set_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/* struct tvp5150 *decoder = i2c_get_clientdata(c); */
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
tvp5150_write(c, TVP5150_BRIGHT_CTL, ctrl->value);
return 0;
case V4L2_CID_CONTRAST:
tvp5150_write(c, TVP5150_CONTRAST_CTL, ctrl->value);
return 0;
case V4L2_CID_SATURATION:
tvp5150_write(c, TVP5150_SATURATION_CTL, ctrl->value);
return 0;
case V4L2_CID_HUE:
tvp5150_write(c, TVP5150_HUE_CTL, ctrl->value);
return 0;
default:
return -EINVAL;
}
}
/****************************************************************************
I2C Command
****************************************************************************/
@ -478,21 +546,21 @@ static int tvp5150_command(struct i2c_client *client,
break;
case DECODER_GET_CAPABILITIES:
{
struct video_decoder_capability *cap = arg;
{
struct video_decoder_capability *cap = arg;
cap->flags = VIDEO_DECODER_PAL |
VIDEO_DECODER_NTSC |
VIDEO_DECODER_SECAM |
VIDEO_DECODER_AUTO | VIDEO_DECODER_CCIR;
cap->inputs = 3;
cap->outputs = 1;
break;
}
cap->flags = VIDEO_DECODER_PAL |
VIDEO_DECODER_NTSC |
VIDEO_DECODER_SECAM |
VIDEO_DECODER_AUTO | VIDEO_DECODER_CCIR;
cap->inputs = 3;
cap->outputs = 1;
break;
}
case DECODER_GET_STATUS:
{
break;
}
{
break;
}
case DECODER_SET_GPIO:
break;
@ -501,87 +569,138 @@ static int tvp5150_command(struct i2c_client *client,
break;
case DECODER_SET_NORM:
{
int *iarg = arg;
{
int *iarg = arg;
switch (*iarg) {
switch (*iarg) {
case VIDEO_MODE_NTSC:
case VIDEO_MODE_NTSC:
break;
case VIDEO_MODE_PAL:
break;
case VIDEO_MODE_SECAM:
break;
case VIDEO_MODE_AUTO:
break;
default:
return -EINVAL;
}
decoder->norm = *iarg;
break;
case VIDEO_MODE_PAL:
break;
case VIDEO_MODE_SECAM:
break;
case VIDEO_MODE_AUTO:
break;
default:
return -EINVAL;
}
decoder->norm = *iarg;
break;
}
case DECODER_SET_INPUT:
{
int *iarg = arg;
if (*iarg < 0 || *iarg > 3) {
return -EINVAL;
{
int *iarg = arg;
if (*iarg < 0 || *iarg > 3) {
return -EINVAL;
}
decoder->input = *iarg;
tvp5150_selmux(client, decoder->input);
break;
}
decoder->input=*iarg;
tvp5150_selmux(client, decoder->input);
break;
}
case DECODER_SET_OUTPUT:
{
int *iarg = arg;
{
int *iarg = arg;
/* not much choice of outputs */
if (*iarg != 0) {
return -EINVAL;
}
break;
}
case DECODER_ENABLE_OUTPUT:
{
int *iarg = arg;
decoder->enable = (*iarg != 0);
tvp5150_selmux(client, decoder->input);
break;
}
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *qc = arg;
u8 i, n;
dprintk(1, KERN_DEBUG "VIDIOC_QUERYCTRL");
n = sizeof(tvp5150_qctrl) / sizeof(tvp5150_qctrl[0]);
for (i = 0; i < n; i++)
if (qc->id && qc->id == tvp5150_qctrl[i].id) {
memcpy(qc, &(tvp5150_qctrl[i]),
sizeof(*qc));
return 0;
}
/* not much choice of outputs */
if (*iarg != 0) {
return -EINVAL;
}
break;
}
case DECODER_ENABLE_OUTPUT:
{
int *iarg = arg;
case VIDIOC_G_CTRL:
{
struct v4l2_control *ctrl = arg;
dprintk(1, KERN_DEBUG "VIDIOC_G_CTRL");
decoder->enable = (*iarg != 0);
return tvp5150_get_ctrl(client, ctrl);
}
case VIDIOC_S_CTRL_OLD: /* ??? */
case VIDIOC_S_CTRL:
{
struct v4l2_control *ctrl = arg;
u8 i, n;
dprintk(1, KERN_DEBUG "VIDIOC_S_CTRL");
n = sizeof(tvp5150_qctrl) / sizeof(tvp5150_qctrl[0]);
for (i = 0; i < n; i++)
if (ctrl->id == tvp5150_qctrl[i].id) {
if (ctrl->value <
tvp5150_qctrl[i].minimum
|| ctrl->value >
tvp5150_qctrl[i].maximum)
return -ERANGE;
dprintk(1,
KERN_DEBUG
"VIDIOC_S_CTRL: id=%d, value=%d",
ctrl->id, ctrl->value);
return tvp5150_set_ctrl(client, ctrl);
}
return -EINVAL;
}
tvp5150_selmux(client, decoder->input);
break;
}
case DECODER_SET_PICTURE:
{
struct video_picture *pic = arg;
if (decoder->bright != pic->brightness) {
/* We want 0 to 255 we get 0-65535 */
decoder->bright = pic->brightness;
tvp5150_write(client, TVP5150_BRIGHT_CTL, decoder->bright >> 8);
{
struct video_picture *pic = arg;
if (decoder->bright != pic->brightness) {
/* We want 0 to 255 we get 0-65535 */
decoder->bright = pic->brightness;
tvp5150_write(client, TVP5150_BRIGHT_CTL,
decoder->bright >> 8);
}
if (decoder->contrast != pic->contrast) {
/* We want 0 to 255 we get 0-65535 */
decoder->contrast = pic->contrast;
tvp5150_write(client, TVP5150_CONTRAST_CTL,
decoder->contrast >> 8);
}
if (decoder->sat != pic->colour) {
/* We want 0 to 255 we get 0-65535 */
decoder->sat = pic->colour;
tvp5150_write(client, TVP5150_SATURATION_CTL,
decoder->contrast >> 8);
}
if (decoder->hue != pic->hue) {
/* We want -128 to 127 we get 0-65535 */
decoder->hue = pic->hue;
tvp5150_write(client, TVP5150_HUE_CTL,
(decoder->hue - 32768) >> 8);
}
break;
}
if (decoder->contrast != pic->contrast) {
/* We want 0 to 255 we get 0-65535 */
decoder->contrast = pic->contrast;
tvp5150_write(client, TVP5150_CONTRAST_CTL, decoder->contrast >> 8);
}
if (decoder->sat != pic->colour) {
/* We want 0 to 255 we get 0-65535 */
decoder->sat = pic->colour;
tvp5150_write(client, TVP5150_SATURATION_CTL, decoder->contrast >> 8);
}
if (decoder->hue != pic->hue) {
/* We want -128 to 127 we get 0-65535 */
decoder->hue = pic->hue;
tvp5150_write(client, TVP5150_HUE_CTL, (decoder->hue - 32768) >> 8);
}
break;
}
default:
return -EINVAL;
}
@ -594,15 +713,14 @@ static int tvp5150_command(struct i2c_client *client,
****************************************************************************/
static struct i2c_driver driver;
static struct i2c_client client_template =
{
.name = "(unset)",
.flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
static struct i2c_client client_template = {
.name = "(unset)",
.flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
static int tvp5150_detect_client (struct i2c_adapter *adapter,
int address, int kind)
static int tvp5150_detect_client(struct i2c_adapter *adapter,
int address, int kind)
{
struct i2c_client *client;
struct tvp5150 *core;
@ -625,7 +743,7 @@ static int tvp5150_detect_client (struct i2c_adapter *adapter,
client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (client == 0)
return -ENOMEM;
memcpy(client,&client_template,sizeof(struct i2c_client));
memcpy(client, &client_template, sizeof(struct i2c_client));
core = kmalloc(sizeof(struct tvp5150), GFP_KERNEL);
if (core == 0) {
@ -651,13 +769,13 @@ static int tvp5150_detect_client (struct i2c_adapter *adapter,
return rv;
}
dump_reg (client);
if (debug > 1)
dump_reg(client);
return 0;
}
static int
tvp5150_attach_adapter (struct i2c_adapter *adapter)
static int tvp5150_attach_adapter(struct i2c_adapter *adapter)
{
dprintk(1,
KERN_INFO
@ -666,8 +784,7 @@ tvp5150_attach_adapter (struct i2c_adapter *adapter)
return i2c_probe(adapter, &addr_data, &tvp5150_detect_client);
}
static int
tvp5150_detach_client (struct i2c_client *client)
static int tvp5150_detach_client(struct i2c_client *client)
{
struct tvp5150 *decoder = i2c_get_clientdata(client);
int err;
@ -699,14 +816,12 @@ static struct i2c_driver driver = {
.command = tvp5150_command,
};
static int __init
tvp5150_init (void)
static int __init tvp5150_init(void)
{
return i2c_add_driver(&driver);
}
static void __exit
tvp5150_exit (void)
static void __exit tvp5150_exit(void)
{
i2c_del_driver(&driver);
}