[PATCH] Indycam / VINO drivers

Rewrite of the Indycam / VINO video v4l2 drivers for the SGI Indy.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Mikael Nousiainen <tmnousia@cc.hut.fi>
Cc: <video4linux-list@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ralf Baechle 2005-09-06 15:19:37 -07:00 committed by Linus Torvalds
parent 0bb6fcc13a
commit d203a7eca8
7 changed files with 5347 additions and 220 deletions

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@ -29,7 +29,7 @@ obj-$(CONFIG_VIDEO_ZORAN_LML33R10) += saa7114.o adv7170.o zr36060.o
obj-$(CONFIG_VIDEO_ZORAN) += zr36067.o videocodec.o
obj-$(CONFIG_VIDEO_PMS) += pms.o
obj-$(CONFIG_VIDEO_PLANB) += planb.o
obj-$(CONFIG_VIDEO_VINO) += vino.o
obj-$(CONFIG_VIDEO_VINO) += vino.o saa7191.o indycam.o
obj-$(CONFIG_VIDEO_STRADIS) += stradis.o
obj-$(CONFIG_VIDEO_CPIA) += cpia.o
obj-$(CONFIG_VIDEO_CPIA_PP) += cpia_pp.o

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@ -0,0 +1,412 @@
/*
* indycam.c - Silicon Graphics IndyCam digital camera driver
*
* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
* Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/videodev.h>
/* IndyCam decodes stream of photons into digital image representation ;-) */
#include <linux/video_decoder.h>
#include <linux/i2c.h>
#include "indycam.h"
//#define INDYCAM_DEBUG
#define INDYCAM_MODULE_VERSION "0.0.3"
MODULE_DESCRIPTION("SGI IndyCam driver");
MODULE_VERSION(INDYCAM_MODULE_VERSION);
MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
MODULE_LICENSE("GPL");
#ifdef INDYCAM_DEBUG
#define dprintk(x...) printk("IndyCam: " x);
#define indycam_regdump(client) indycam_regdump_debug(client)
#else
#define dprintk(x...)
#define indycam_regdump(client)
#endif
#define VINO_ADAPTER (I2C_ALGO_SGI | I2C_HW_SGI_VINO)
struct indycam {
struct i2c_client *client;
int version;
};
static struct i2c_driver i2c_driver_indycam;
static const unsigned char initseq[] = {
INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */
INDYCAM_SHUTTER_DEFAULT, /* INDYCAM_SHUTTER */
INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */
0x00, /* INDYCAM_BRIGHTNESS (read-only) */
INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */
INDYCAM_BLUE_BALANCE_DEFAULT, /* INDYCAM_BLUE_BALANCE */
INDYCAM_RED_SATURATION_DEFAULT, /* INDYCAM_RED_SATURATION */
INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */
};
/* IndyCam register handling */
static int indycam_read_reg(struct i2c_client *client, unsigned char reg,
unsigned char *value)
{
int ret;
if (reg == INDYCAM_RESET) {
dprintk("indycam_read_reg(): "
"skipping write-only register %d\n", reg);
*value = 0;
return 0;
}
ret = i2c_smbus_read_byte_data(client, reg);
if (ret < 0) {
printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, "
"register = 0x%02x\n", reg);
return ret;
}
*value = (unsigned char)ret;
return 0;
}
static int indycam_write_reg(struct i2c_client *client, unsigned char reg,
unsigned char value)
{
int err;
if ((reg == INDYCAM_BRIGHTNESS)
|| (reg == INDYCAM_VERSION)) {
dprintk("indycam_write_reg(): "
"skipping read-only register %d\n", reg);
return 0;
}
dprintk("Writing Reg %d = 0x%02x\n", reg, value);
err = i2c_smbus_write_byte_data(client, reg, value);
if (err) {
printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, "
"register = 0x%02x, value = 0x%02x\n", reg, value);
}
return err;
}
static int indycam_write_block(struct i2c_client *client, unsigned char reg,
unsigned char length, unsigned char *data)
{
unsigned char i;
int err;
for (i = reg; i < length; i++) {
err = indycam_write_reg(client, reg + i, data[i]);
if (err)
return err;
}
return 0;
}
/* Helper functions */
#ifdef INDYCAM_DEBUG
static void indycam_regdump_debug(struct i2c_client *client)
{
int i;
unsigned char val;
for (i = 0; i < 9; i++) {
indycam_read_reg(client, i, &val);
dprintk("Reg %d = 0x%02x\n", i, val);
}
}
#endif
static int indycam_get_controls(struct i2c_client *client,
struct indycam_control *ctrl)
{
unsigned char ctrl_reg;
indycam_read_reg(client, INDYCAM_CONTROL, &ctrl_reg);
ctrl->agc = (ctrl_reg & INDYCAM_CONTROL_AGCENA)
? INDYCAM_VALUE_ENABLED
: INDYCAM_VALUE_DISABLED;
ctrl->awb = (ctrl_reg & INDYCAM_CONTROL_AWBCTL)
? INDYCAM_VALUE_ENABLED
: INDYCAM_VALUE_DISABLED;
indycam_read_reg(client, INDYCAM_SHUTTER,
(unsigned char *)&ctrl->shutter);
indycam_read_reg(client, INDYCAM_GAIN,
(unsigned char *)&ctrl->gain);
indycam_read_reg(client, INDYCAM_RED_BALANCE,
(unsigned char *)&ctrl->red_balance);
indycam_read_reg(client, INDYCAM_BLUE_BALANCE,
(unsigned char *)&ctrl->blue_balance);
indycam_read_reg(client, INDYCAM_RED_SATURATION,
(unsigned char *)&ctrl->red_saturation);
indycam_read_reg(client, INDYCAM_BLUE_SATURATION,
(unsigned char *)&ctrl->blue_saturation);
indycam_read_reg(client, INDYCAM_GAMMA,
(unsigned char *)&ctrl->gamma);
return 0;
}
static int indycam_set_controls(struct i2c_client *client,
struct indycam_control *ctrl)
{
unsigned char ctrl_reg;
indycam_read_reg(client, INDYCAM_CONTROL, &ctrl_reg);
if (ctrl->agc != INDYCAM_VALUE_UNCHANGED) {
if (ctrl->agc)
ctrl_reg |= INDYCAM_CONTROL_AGCENA;
else
ctrl_reg &= ~INDYCAM_CONTROL_AGCENA;
}
if (ctrl->awb != INDYCAM_VALUE_UNCHANGED) {
if (ctrl->awb)
ctrl_reg |= INDYCAM_CONTROL_AWBCTL;
else
ctrl_reg &= ~INDYCAM_CONTROL_AWBCTL;
}
indycam_write_reg(client, INDYCAM_CONTROL, ctrl_reg);
if (ctrl->shutter >= 0)
indycam_write_reg(client, INDYCAM_SHUTTER, ctrl->shutter);
if (ctrl->gain >= 0)
indycam_write_reg(client, INDYCAM_GAIN, ctrl->gain);
if (ctrl->red_balance >= 0)
indycam_write_reg(client, INDYCAM_RED_BALANCE,
ctrl->red_balance);
if (ctrl->blue_balance >= 0)
indycam_write_reg(client, INDYCAM_BLUE_BALANCE,
ctrl->blue_balance);
if (ctrl->red_saturation >= 0)
indycam_write_reg(client, INDYCAM_RED_SATURATION,
ctrl->red_saturation);
if (ctrl->blue_saturation >= 0)
indycam_write_reg(client, INDYCAM_BLUE_SATURATION,
ctrl->blue_saturation);
if (ctrl->gamma >= 0)
indycam_write_reg(client, INDYCAM_GAMMA, ctrl->gamma);
return 0;
}
/* I2C-interface */
static int indycam_attach(struct i2c_adapter *adap, int addr, int kind)
{
int err = 0;
struct indycam *camera;
struct i2c_client *client;
printk(KERN_INFO "SGI IndyCam driver version %s\n",
INDYCAM_MODULE_VERSION);
client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (!client)
return -ENOMEM;
camera = kmalloc(sizeof(struct indycam), GFP_KERNEL);
if (!camera) {
err = -ENOMEM;
goto out_free_client;
}
memset(client, 0, sizeof(struct i2c_client));
memset(camera, 0, sizeof(struct indycam));
client->addr = addr;
client->adapter = adap;
client->driver = &i2c_driver_indycam;
client->flags = 0;
strcpy(client->name, "IndyCam client");
i2c_set_clientdata(client, camera);
camera->client = client;
err = i2c_attach_client(client);
if (err)
goto out_free_camera;
camera->version = i2c_smbus_read_byte_data(client, INDYCAM_VERSION);
if (camera->version != CAMERA_VERSION_INDY &&
camera->version != CAMERA_VERSION_MOOSE) {
err = -ENODEV;
goto out_detach_client;
}
printk(KERN_INFO "IndyCam v%d.%d detected\n",
INDYCAM_VERSION_MAJOR(camera->version),
INDYCAM_VERSION_MINOR(camera->version));
indycam_regdump(client);
// initialize
err = indycam_write_block(client, 0, sizeof(initseq),
(unsigned char *)&initseq);
if (err) {
printk(KERN_ERR "IndyCam initalization failed\n");
err = -EIO;
goto out_detach_client;
}
indycam_regdump(client);
// white balance
err = indycam_write_reg(client, INDYCAM_CONTROL,
INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL);
if (err) {
printk(KERN_ERR "IndyCam white balance "
"initialization failed\n");
err = -EIO;
goto out_detach_client;
}
indycam_regdump(client);
printk(KERN_INFO "IndyCam initialized\n");
return 0;
out_detach_client:
i2c_detach_client(client);
out_free_camera:
kfree(camera);
out_free_client:
kfree(client);
return err;
}
static int indycam_probe(struct i2c_adapter *adap)
{
/* Indy specific crap */
if (adap->id == VINO_ADAPTER)
return indycam_attach(adap, INDYCAM_ADDR, 0);
/* Feel free to add probe here :-) */
return -ENODEV;
}
static int indycam_detach(struct i2c_client *client)
{
struct indycam *camera = i2c_get_clientdata(client);
i2c_detach_client(client);
kfree(camera);
kfree(client);
return 0;
}
static int indycam_command(struct i2c_client *client, unsigned int cmd,
void *arg)
{
// struct indycam *camera = i2c_get_clientdata(client);
/* The old video_decoder interface just isn't enough,
* so we'll use some custom commands. */
switch (cmd) {
case DECODER_GET_CAPABILITIES: {
struct video_decoder_capability *cap = arg;
cap->flags = VIDEO_DECODER_NTSC;
cap->inputs = 1;
cap->outputs = 1;
break;
}
case DECODER_GET_STATUS: {
int *iarg = arg;
*iarg = DECODER_STATUS_GOOD | DECODER_STATUS_NTSC |
DECODER_STATUS_COLOR;
break;
}
case DECODER_SET_NORM: {
int *iarg = arg;
switch (*iarg) {
case VIDEO_MODE_NTSC:
break;
default:
return -EINVAL;
}
break;
}
case DECODER_SET_INPUT: {
int *iarg = arg;
if (*iarg != 0)
return -EINVAL;
break;
}
case DECODER_SET_OUTPUT: {
int *iarg = arg;
if (*iarg != 0)
return -EINVAL;
break;
}
case DECODER_ENABLE_OUTPUT: {
/* Always enabled */
break;
}
case DECODER_SET_PICTURE: {
// struct video_picture *pic = arg;
/* TODO: convert values for indycam_set_controls() */
break;
}
case DECODER_INDYCAM_GET_CONTROLS: {
struct indycam_control *ctrl = arg;
indycam_get_controls(client, ctrl);
}
case DECODER_INDYCAM_SET_CONTROLS: {
struct indycam_control *ctrl = arg;
indycam_set_controls(client, ctrl);
}
default:
return -EINVAL;
}
return 0;
}
static struct i2c_driver i2c_driver_indycam = {
.owner = THIS_MODULE,
.name = "indycam",
.id = I2C_DRIVERID_INDYCAM,
.flags = I2C_DF_NOTIFY,
.attach_adapter = indycam_probe,
.detach_client = indycam_detach,
.command = indycam_command,
};
static int __init indycam_init(void)
{
return i2c_add_driver(&i2c_driver_indycam);
}
static void __exit indycam_exit(void)
{
i2c_del_driver(&i2c_driver_indycam);
}
module_init(indycam_init);
module_exit(indycam_exit);

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@ -0,0 +1,112 @@
/*
* indycam.h - Silicon Graphics IndyCam digital camera driver
*
* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
* Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _INDYCAM_H_
#define _INDYCAM_H_
/* I2C address for the Guinness Camera */
#define INDYCAM_ADDR 0x56
/* Camera version */
#define CAMERA_VERSION_INDY 0x10 /* v1.0 */
#define CAMERA_VERSION_MOOSE 0x12 /* v1.2 */
#define INDYCAM_VERSION_MAJOR(x) (((x) & 0xf0) >> 4)
#define INDYCAM_VERSION_MINOR(x) ((x) & 0x0f)
/* Register bus addresses */
#define INDYCAM_CONTROL 0x00
#define INDYCAM_SHUTTER 0x01
#define INDYCAM_GAIN 0x02
#define INDYCAM_BRIGHTNESS 0x03 /* read-only */
#define INDYCAM_RED_BALANCE 0x04
#define INDYCAM_BLUE_BALANCE 0x05
#define INDYCAM_RED_SATURATION 0x06
#define INDYCAM_BLUE_SATURATION 0x07
#define INDYCAM_GAMMA 0x08
#define INDYCAM_VERSION 0x0e /* read-only */
#define INDYCAM_RESET 0x0f /* write-only */
#define INDYCAM_LED 0x46
#define INDYCAM_ORIENTATION 0x47
#define INDYCAM_BUTTON 0x48
/* Field definitions of registers */
#define INDYCAM_CONTROL_AGCENA (1<<0) /* automatic gain control */
#define INDYCAM_CONTROL_AWBCTL (1<<1) /* automatic white balance */
/* 2-3 are reserved */
#define INDYCAM_CONTROL_EVNFLD (1<<4) /* read-only */
#define INDYCAM_SHUTTER_10000 0x02 /* 1/10000 second */
#define INDYCAM_SHUTTER_4000 0x04 /* 1/4000 second */
#define INDYCAM_SHUTTER_2000 0x08 /* 1/2000 second */
#define INDYCAM_SHUTTER_1000 0x10 /* 1/1000 second */
#define INDYCAM_SHUTTER_500 0x20 /* 1/500 second */
#define INDYCAM_SHUTTER_250 0x3f /* 1/250 second */
#define INDYCAM_SHUTTER_125 0x7e /* 1/125 second */
#define INDYCAM_SHUTTER_100 0x9e /* 1/100 second */
#define INDYCAM_SHUTTER_60 0x00 /* 1/60 second */
#define INDYCAM_LED_ACTIVE 0x10
#define INDYCAM_LED_INACTIVE 0x30
#define INDYCAM_ORIENTATION_BOTTOM_TO_TOP 0x40
#define INDYCAM_BUTTON_RELEASED 0x10
#define INDYCAM_SHUTTER_MIN 0x00
#define INDYCAM_SHUTTER_MAX 0xff
#define INDYCAM_GAIN_MIN 0x00
#define INDYCAM_GAIN_MAX 0xff
#define INDYCAM_RED_BALANCE_MIN 0x00 /* the effect is the opposite? */
#define INDYCAM_RED_BALANCE_MAX 0xff
#define INDYCAM_BLUE_BALANCE_MIN 0x00 /* the effect is the opposite? */
#define INDYCAM_BLUE_BALANCE_MAX 0xff
#define INDYCAM_RED_SATURATION_MIN 0x00
#define INDYCAM_RED_SATURATION_MAX 0xff
#define INDYCAM_BLUE_SATURATION_MIN 0x00
#define INDYCAM_BLUE_SATURATION_MAX 0xff
#define INDYCAM_GAMMA_MIN 0x00
#define INDYCAM_GAMMA_MAX 0xff
/* Driver interface definitions */
#define INDYCAM_VALUE_ENABLED 1
#define INDYCAM_VALUE_DISABLED 0
#define INDYCAM_VALUE_UNCHANGED -1
/* When setting controls, a value of -1 leaves the control unchanged. */
struct indycam_control {
int agc; /* boolean */
int awb; /* boolean */
int shutter;
int gain;
int red_balance;
int blue_balance;
int red_saturation;
int blue_saturation;
int gamma;
};
#define DECODER_INDYCAM_GET_CONTROLS _IOR('d', 193, struct indycam_control)
#define DECODER_INDYCAM_SET_CONTROLS _IOW('d', 194, struct indycam_control)
/* Default values for controls */
#define INDYCAM_AGC_DEFAULT INDYCAM_VALUE_ENABLED
#define INDYCAM_AWB_DEFAULT INDYCAM_VALUE_ENABLED
#define INDYCAM_SHUTTER_DEFAULT INDYCAM_SHUTTER_60
#define INDYCAM_GAIN_DEFAULT 0x80
#define INDYCAM_RED_BALANCE_DEFAULT 0x18
#define INDYCAM_BLUE_BALANCE_DEFAULT 0xa4
#define INDYCAM_RED_SATURATION_DEFAULT 0x80
#define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0
#define INDYCAM_GAMMA_DEFAULT 0x80
#endif

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@ -0,0 +1,512 @@
/*
* saa7191.c - Philips SAA7191 video decoder driver
*
* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
* Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/videodev.h>
#include <linux/video_decoder.h>
#include <linux/i2c.h>
#include "saa7191.h"
#define SAA7191_MODULE_VERSION "0.0.3"
MODULE_DESCRIPTION("Philips SAA7191 video decoder driver");
MODULE_VERSION(SAA7191_MODULE_VERSION);
MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
MODULE_LICENSE("GPL");
#define VINO_ADAPTER (I2C_ALGO_SGI | I2C_HW_SGI_VINO)
struct saa7191 {
struct i2c_client *client;
/* the register values are stored here as the actual
* I2C-registers are write-only */
unsigned char reg[25];
unsigned char norm;
unsigned char input;
};
static struct i2c_driver i2c_driver_saa7191;
static const unsigned char initseq[] = {
0, /* Subaddress */
0x50, /* SAA7191_REG_IDEL */
0x30, /* SAA7191_REG_HSYB */
0x00, /* SAA7191_REG_HSYS */
0xe8, /* SAA7191_REG_HCLB */
0xb6, /* SAA7191_REG_HCLS */
0xf4, /* SAA7191_REG_HPHI */
0x01, /* SAA7191_REG_LUMA - chrominance trap active (CVBS) */
0x00, /* SAA7191_REG_HUEC */
0xf8, /* SAA7191_REG_CKTQ */
0xf8, /* SAA7191_REG_CKTS */
0x90, /* SAA7191_REG_PLSE */
0x90, /* SAA7191_REG_SESE */
0x00, /* SAA7191_REG_GAIN */
0x0c, /* SAA7191_REG_STDC - not SECAM, slow time constant */
0x78, /* SAA7191_REG_IOCK - chrominance from CVBS, GPSW1 & 2 off */
0x99, /* SAA7191_REG_CTL3 - automatic field detection */
0x00, /* SAA7191_REG_CTL4 */
0x2c, /* SAA7191_REG_CHCV */
0x00, /* unused */
0x00, /* unused */
0x34, /* SAA7191_REG_HS6B */
0x0a, /* SAA7191_REG_HS6S */
0xf4, /* SAA7191_REG_HC6B */
0xce, /* SAA7191_REG_HC6S */
0xf4, /* SAA7191_REG_HP6I */
};
/* SAA7191 register handling */
static unsigned char saa7191_read_reg(struct i2c_client *client,
unsigned char reg)
{
return ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg];
}
static int saa7191_read_status(struct i2c_client *client,
unsigned char *value)
{
int ret;
ret = i2c_master_recv(client, value, 1);
if (ret < 0) {
printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed");
return ret;
}
return 0;
}
static int saa7191_write_reg(struct i2c_client *client, unsigned char reg,
unsigned char value)
{
((struct saa7191 *)i2c_get_clientdata(client))->reg[reg] = value;
return i2c_smbus_write_byte_data(client, reg, value);
}
/* the first byte of data must be the first subaddress number (register) */
static int saa7191_write_block(struct i2c_client *client,
unsigned char length, unsigned char *data)
{
int i;
int ret;
struct saa7191 *decoder = (struct saa7191 *)i2c_get_clientdata(client);
for (i = 0; i < (length - 1); i++) {
decoder->reg[data[0] + i] = data[i + 1];
}
ret = i2c_master_send(client, data, length);
if (ret < 0) {
printk(KERN_ERR "SAA7191: saa7191_write_block(): "
"write failed");
return ret;
}
return 0;
}
/* Helper functions */
static int saa7191_set_input(struct i2c_client *client, int input)
{
unsigned char luma = saa7191_read_reg(client, SAA7191_REG_LUMA);
unsigned char iock = saa7191_read_reg(client, SAA7191_REG_IOCK);
int err;
switch (input) {
case SAA7191_INPUT_COMPOSITE: /* Set Composite input */
iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1
| SAA7191_IOCK_GPSW2);
/* Chrominance trap active */
luma &= ~SAA7191_LUMA_BYPS;
break;
case SAA7191_INPUT_SVIDEO: /* Set S-Video input */
iock |= SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW2;
/* Chrominance trap bypassed */
luma |= SAA7191_LUMA_BYPS;
break;
default:
return -EINVAL;
}
err = saa7191_write_reg(client, SAA7191_REG_LUMA, luma);
if (err)
return -EIO;
err = saa7191_write_reg(client, SAA7191_REG_IOCK, iock);
if (err)
return -EIO;
return 0;
}
static int saa7191_set_norm(struct i2c_client *client, int norm)
{
struct saa7191 *decoder = i2c_get_clientdata(client);
unsigned char stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
unsigned char ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3);
unsigned char chcv = saa7191_read_reg(client, SAA7191_REG_CHCV);
int err;
switch(norm) {
case SAA7191_NORM_AUTO: {
unsigned char status;
// does status depend on current norm ?
if (saa7191_read_status(client, &status))
return -EIO;
stdc &= ~SAA7191_STDC_SECS;
ctl3 &= ~SAA7191_CTL3_FSEL;
ctl3 |= SAA7191_CTL3_AUFD;
chcv = (status & SAA7191_STATUS_FIDT)
? SAA7191_CHCV_NTSC : SAA7191_CHCV_PAL;
break;
}
case SAA7191_NORM_PAL:
stdc &= ~SAA7191_STDC_SECS;
ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
chcv = SAA7191_CHCV_PAL;
break;
case SAA7191_NORM_NTSC:
stdc &= ~SAA7191_STDC_SECS;
ctl3 &= ~SAA7191_CTL3_AUFD;
ctl3 |= SAA7191_CTL3_FSEL;
chcv = SAA7191_CHCV_NTSC;
break;
case SAA7191_NORM_SECAM:
stdc |= SAA7191_STDC_SECS;
ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
chcv = SAA7191_CHCV_PAL;
break;
default:
return -EINVAL;
}
err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3);
if (err)
return -EIO;
err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
if (err)
return -EIO;
err = saa7191_write_reg(client, SAA7191_REG_CHCV, chcv);
if (err)
return -EIO;
decoder->norm = norm;
return 0;
}
static int saa7191_get_controls(struct i2c_client *client,
struct saa7191_control *ctrl)
{
unsigned char hue = saa7191_read_reg(client, SAA7191_REG_HUEC);
unsigned char stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
if (hue < 0x80) {
hue += 0x80;
} else {
hue -= 0x80;
}
ctrl->hue = hue;
ctrl->vtrc = (stdc & SAA7191_STDC_VTRC)
? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
return 0;
}
static int saa7191_set_controls(struct i2c_client *client,
struct saa7191_control *ctrl)
{
int err;
if (ctrl->hue >= 0) {
unsigned char hue = ctrl->hue & 0xff;
if (hue < 0x80) {
hue += 0x80;
} else {
hue -= 0x80;
}
err = saa7191_write_reg(client, SAA7191_REG_HUEC, hue);
if (err)
return -EIO;
}
if (ctrl->vtrc >= 0) {
unsigned char stdc =
saa7191_read_reg(client, SAA7191_REG_STDC);
if (ctrl->vtrc) {
stdc |= SAA7191_STDC_VTRC;
} else {
stdc &= ~SAA7191_STDC_VTRC;
}
err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
if (err)
return -EIO;
}
return 0;
}
/* I2C-interface */
static int saa7191_attach(struct i2c_adapter *adap, int addr, int kind)
{
int err = 0;
struct saa7191 *decoder;
struct i2c_client *client;
printk(KERN_INFO "Philips SAA7191 driver version %s\n",
SAA7191_MODULE_VERSION);
client = kmalloc(sizeof(*client), GFP_KERNEL);
if (!client)
return -ENOMEM;
decoder = kmalloc(sizeof(*decoder), GFP_KERNEL);
if (!decoder) {
err = -ENOMEM;
goto out_free_client;
}
memset(client, 0, sizeof(struct i2c_client));
memset(decoder, 0, sizeof(struct saa7191));
client->addr = addr;
client->adapter = adap;
client->driver = &i2c_driver_saa7191;
client->flags = 0;
strcpy(client->name, "saa7191 client");
i2c_set_clientdata(client, decoder);
decoder->client = client;
err = i2c_attach_client(client);
if (err)
goto out_free_decoder;
decoder->input = SAA7191_INPUT_COMPOSITE;
decoder->norm = SAA7191_NORM_AUTO;
err = saa7191_write_block(client, sizeof(initseq),
(unsigned char *)initseq);
if (err) {
printk(KERN_ERR "SAA7191 initialization failed\n");
goto out_detach_client;
}
printk(KERN_INFO "SAA7191 initialized\n");
return 0;
out_detach_client:
i2c_detach_client(client);
out_free_decoder:
kfree(decoder);
out_free_client:
kfree(client);
return err;
}
static int saa7191_probe(struct i2c_adapter *adap)
{
/* Always connected to VINO */
if (adap->id == VINO_ADAPTER)
return saa7191_attach(adap, SAA7191_ADDR, 0);
/* Feel free to add probe here :-) */
return -ENODEV;
}
static int saa7191_detach(struct i2c_client *client)
{
struct saa7191 *decoder = i2c_get_clientdata(client);
i2c_detach_client(client);
kfree(decoder);
kfree(client);
return 0;
}
static int saa7191_command(struct i2c_client *client, unsigned int cmd,
void *arg)
{
struct saa7191 *decoder = i2c_get_clientdata(client);
switch (cmd) {
case DECODER_GET_CAPABILITIES: {
struct video_decoder_capability *cap = arg;
cap->flags = VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC |
VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO;
cap->inputs = (client->adapter->id == VINO_ADAPTER) ? 2 : 1;
cap->outputs = 1;
break;
}
case DECODER_GET_STATUS: {
int *iarg = arg;
unsigned char status;
int res = 0;
if (saa7191_read_status(client, &status)) {
return -EIO;
}
if ((status & SAA7191_STATUS_HLCK) == 0)
res |= DECODER_STATUS_GOOD;
if (status & SAA7191_STATUS_CODE)
res |= DECODER_STATUS_COLOR;
switch (decoder->norm) {
case SAA7191_NORM_NTSC:
res |= DECODER_STATUS_NTSC;
break;
case SAA7191_NORM_PAL:
res |= DECODER_STATUS_PAL;
break;
case SAA7191_NORM_SECAM:
res |= DECODER_STATUS_SECAM;
break;
case SAA7191_NORM_AUTO:
default:
if (status & SAA7191_STATUS_FIDT)
res |= DECODER_STATUS_NTSC;
else
res |= DECODER_STATUS_PAL;
break;
}
*iarg = res;
break;
}
case DECODER_SET_NORM: {
int *iarg = arg;
switch (*iarg) {
case VIDEO_MODE_AUTO:
return saa7191_set_norm(client, SAA7191_NORM_AUTO);
case VIDEO_MODE_PAL:
return saa7191_set_norm(client, SAA7191_NORM_PAL);
case VIDEO_MODE_NTSC:
return saa7191_set_norm(client, SAA7191_NORM_NTSC);
case VIDEO_MODE_SECAM:
return saa7191_set_norm(client, SAA7191_NORM_SECAM);
default:
return -EINVAL;
}
break;
}
case DECODER_SET_INPUT: {
int *iarg = arg;
switch (client->adapter->id) {
case VINO_ADAPTER:
return saa7191_set_input(client, *iarg);
default:
if (*iarg != 0)
return -EINVAL;
}
break;
}
case DECODER_SET_OUTPUT: {
int *iarg = arg;
/* not much choice of outputs */
if (*iarg != 0)
return -EINVAL;
break;
}
case DECODER_ENABLE_OUTPUT: {
/* Always enabled */
break;
}
case DECODER_SET_PICTURE: {
struct video_picture *pic = arg;
unsigned val;
int err;
val = (pic->hue >> 8) - 0x80;
err = saa7191_write_reg(client, SAA7191_REG_HUEC, val);
if (err)
return -EIO;
break;
}
case DECODER_SAA7191_GET_STATUS: {
struct saa7191_status *status = arg;
unsigned char status_reg;
if (saa7191_read_status(client, &status_reg))
return -EIO;
status->signal = ((status_reg & SAA7191_STATUS_HLCK) == 0)
? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
status->ntsc = (status_reg & SAA7191_STATUS_FIDT)
? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
status->color = (status_reg & SAA7191_STATUS_CODE)
? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
status->input = decoder->input;
status->norm = decoder->norm;
}
case DECODER_SAA7191_SET_NORM: {
int *norm = arg;
return saa7191_set_norm(client, *norm);
}
case DECODER_SAA7191_GET_CONTROLS: {
struct saa7191_control *ctrl = arg;
return saa7191_get_controls(client, ctrl);
}
case DECODER_SAA7191_SET_CONTROLS: {
struct saa7191_control *ctrl = arg;
return saa7191_set_controls(client, ctrl);
}
default:
return -EINVAL;
}
return 0;
}
static struct i2c_driver i2c_driver_saa7191 = {
.owner = THIS_MODULE,
.name = "saa7191",
.id = I2C_DRIVERID_SAA7191,
.flags = I2C_DF_NOTIFY,
.attach_adapter = saa7191_probe,
.detach_client = saa7191_detach,
.command = saa7191_command
};
static int saa7191_init(void)
{
return i2c_add_driver(&i2c_driver_saa7191);
}
static void saa7191_exit(void)
{
i2c_del_driver(&i2c_driver_saa7191);
}
module_init(saa7191_init);
module_exit(saa7191_exit);

View file

@ -0,0 +1,139 @@
/*
* saa7191.h - Philips SAA7191 video decoder driver
*
* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
* Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _SAA7191_H_
#define _SAA7191_H_
/* Philips SAA7191 DMSD I2C bus address */
#define SAA7191_ADDR 0x8a
/* Register subaddresses. */
#define SAA7191_REG_IDEL 0x00
#define SAA7191_REG_HSYB 0x01
#define SAA7191_REG_HSYS 0x02
#define SAA7191_REG_HCLB 0x03
#define SAA7191_REG_HCLS 0x04
#define SAA7191_REG_HPHI 0x05
#define SAA7191_REG_LUMA 0x06
#define SAA7191_REG_HUEC 0x07
#define SAA7191_REG_CKTQ 0x08
#define SAA7191_REG_CKTS 0x09
#define SAA7191_REG_PLSE 0x0a
#define SAA7191_REG_SESE 0x0b
#define SAA7191_REG_GAIN 0x0c
#define SAA7191_REG_STDC 0x0d
#define SAA7191_REG_IOCK 0x0e
#define SAA7191_REG_CTL3 0x0f
#define SAA7191_REG_CTL4 0x10
#define SAA7191_REG_CHCV 0x11
#define SAA7191_REG_HS6B 0x14
#define SAA7191_REG_HS6S 0x15
#define SAA7191_REG_HC6B 0x16
#define SAA7191_REG_HC6S 0x17
#define SAA7191_REG_HP6I 0x18
#define SAA7191_REG_STATUS 0xff /* not really a subaddress */
/* Status Register definitions */
#define SAA7191_STATUS_CODE 0x01 /* color detected flag */
#define SAA7191_STATUS_FIDT 0x20 /* format type NTSC/PAL */
#define SAA7191_STATUS_HLCK 0x40 /* PLL unlocked/locked */
#define SAA7191_STATUS_STTC 0x80 /* tv/vtr time constant */
/* Luminance Control Register definitions */
#define SAA7191_LUMA_BYPS 0x80
/* Chroma Gain Control Settings Register definitions */
/* 0=automatic colour-killer enabled, 1=forced colour on */
#define SAA7191_GAIN_COLO 0x80
/* Standard/Mode Control Register definitions */
/* tv/vtr mode bit: 0=TV mode (slow time constant),
* 1=VTR mode (fast time constant) */
#define SAA7191_STDC_VTRC 0x80
/* SECAM mode bit: 0=other standards, 1=SECAM */
#define SAA7191_STDC_SECS 0x01
/* the bit fields above must be or'd with this value */
#define SAA7191_STDC_VALUE 0x0c
/* I/O and Clock Control Register definitions */
/* horizontal clock PLL: 0=PLL closed,
* 1=PLL circuit open and horizontal freq fixed */
#define SAA7191_IOCK_HPLL 0x80
/* S-VHS bit (chrominance from CVBS or from chrominance input):
* 0=controlled by BYPS-bit, 1=from chrominance input */
#define SAA7191_IOCK_CHRS 0x04
/* general purpose switch 2
* VINO-specific: 0=used with CVBS, 1=used with S-Video */
#define SAA7191_IOCK_GPSW2 0x02
/* general purpose switch 1 */
/* VINO-specific: 0=always, 1=not used!*/
#define SAA7191_IOCK_GPSW1 0x01
/* Miscellaneous Control #1 Register definitions */
/* automatic field detection (50/60Hz standard) */
#define SAA7191_CTL3_AUFD 0x80
/* field select: (if AUFD=0)
* 0=50Hz (625 lines), 1=60Hz (525 lines) */
#define SAA7191_CTL3_FSEL 0x40
/* the bit fields above must be or'd with this value */
#define SAA7191_CTL3_VALUE 0x19
/* Chrominance Gain Control Register definitions
* (nominal value for UV CCIR level) */
#define SAA7191_CHCV_NTSC 0x2c
#define SAA7191_CHCV_PAL 0x59
/* Driver interface definitions */
#define SAA7191_INPUT_COMPOSITE 0
#define SAA7191_INPUT_SVIDEO 1
#define SAA7191_NORM_AUTO 0
#define SAA7191_NORM_PAL 1
#define SAA7191_NORM_NTSC 2
#define SAA7191_NORM_SECAM 3
#define SAA7191_VALUE_ENABLED 1
#define SAA7191_VALUE_DISABLED 0
#define SAA7191_VALUE_UNCHANGED -1
struct saa7191_status {
/* 0=no signal, 1=signal active*/
int signal;
/* 0=50hz (pal) signal, 1=60hz (ntsc) signal */
int ntsc;
/* 0=no color detected, 1=color detected */
int color;
/* current SAA7191_INPUT_ */
int input;
/* current SAA7191_NORM_ */
int norm;
};
#define SAA7191_HUE_MIN 0x00
#define SAA7191_HUE_MAX 0xff
#define SAA7191_HUE_DEFAULT 0x80
#define SAA7191_VTRC_MIN 0x00
#define SAA7191_VTRC_MAX 0x01
#define SAA7191_VTRC_DEFAULT 0x00
struct saa7191_control {
int hue;
int vtrc;
};
#define DECODER_SAA7191_GET_STATUS _IOR('d', 195, struct saa7191_status)
#define DECODER_SAA7191_SET_NORM _IOW('d', 196, int)
#define DECODER_SAA7191_GET_CONTROLS _IOR('d', 197, struct saa7191_control)
#define DECODER_SAA7191_SET_CONTROLS _IOW('d', 198, struct saa7191_control)
#endif

File diff suppressed because it is too large Load diff

View file

@ -1,13 +1,19 @@
/*
* Driver for the VINO (Video In No Out) system found in SGI Indys.
*
* This file is subject to the terms and conditions of the GNU General Public
* License version 2 as published by the Free Software Foundation.
*
* Copyright (C) 1999 Ulf Karlsson <ulfc@bun.falkenberg.se>
* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
*/
#ifndef VINO_H
#define VINO_H
#ifndef _VINO_H_
#define _VINO_H_
#define VINO_BASE 0x00080000 /* Vino is in the EISA address space,
* but it is not an EISA bus card */
#define VINO_PAGE_SIZE 4096
struct sgi_vino_channel {
u32 _pad_alpha;
@ -21,8 +27,9 @@ struct sgi_vino_channel {
u32 _pad_clip_end;
volatile u32 clip_end;
#define VINO_FRAMERT_FULL 0xfff
#define VINO_FRAMERT_PAL (1<<0) /* 0=NTSC 1=PAL */
#define VINO_FRAMERT_RT(x) (((x) & 0x1fff) << 1) /* bits 1:12 */
#define VINO_FRAMERT_RT(x) (((x) & 0xfff) << 1) /* bits 1:12 */
u32 _pad_frame_rate;
volatile u32 frame_rate;
@ -67,18 +74,18 @@ struct sgi_vino {
volatile u32 rev_id;
#define VINO_CTRL_LITTLE_ENDIAN (1<<0)
#define VINO_CTRL_A_FIELD_TRANS_INT (1<<1) /* Field transferred int */
#define VINO_CTRL_A_FIFO_OF_INT (1<<2) /* FIFO overflow int */
#define VINO_CTRL_A_END_DESC_TBL_INT (1<<3) /* End of desc table int */
#define VINO_CTRL_A_INT (VINO_CTRL_A_FIELD_TRANS_INT | \
VINO_CTRL_A_FIFO_OF_INT | \
VINO_CTRL_A_END_DESC_TBL_INT)
#define VINO_CTRL_B_FIELD_TRANS_INT (1<<4) /* Field transferred int */
#define VINO_CTRL_B_FIFO_OF_INT (1<<5) /* FIFO overflow int */
#define VINO_CTRL_B_END_DESC_TBL_INT (1<<6) /* End of desc table int */
#define VINO_CTRL_B_INT (VINO_CTRL_B_FIELD_TRANS_INT | \
VINO_CTRL_B_FIFO_OF_INT | \
VINO_CTRL_B_END_DESC_TBL_INT)
#define VINO_CTRL_A_EOF_INT (1<<1) /* Field transferred int */
#define VINO_CTRL_A_FIFO_INT (1<<2) /* FIFO overflow int */
#define VINO_CTRL_A_EOD_INT (1<<3) /* End of desc table int */
#define VINO_CTRL_A_INT (VINO_CTRL_A_EOF_INT | \
VINO_CTRL_A_FIFO_INT | \
VINO_CTRL_A_EOD_INT)
#define VINO_CTRL_B_EOF_INT (1<<4) /* Field transferred int */
#define VINO_CTRL_B_FIFO_INT (1<<5) /* FIFO overflow int */
#define VINO_CTRL_B_EOD_INT (1<<6) /* End of desc table int */
#define VINO_CTRL_B_INT (VINO_CTRL_B_EOF_INT | \
VINO_CTRL_B_FIFO_INT | \
VINO_CTRL_B_EOD_INT)
#define VINO_CTRL_A_DMA_ENBL (1<<7)
#define VINO_CTRL_A_INTERLEAVE_ENBL (1<<8)
#define VINO_CTRL_A_SYNC_ENBL (1<<9)
@ -104,18 +111,18 @@ struct sgi_vino {
u32 _pad_control;
volatile u32 control;
#define VINO_INTSTAT_A_FIELD_TRANS (1<<0) /* Field transferred int */
#define VINO_INTSTAT_A_FIFO_OF (1<<1) /* FIFO overflow int */
#define VINO_INTSTAT_A_END_DESC_TBL (1<<2) /* End of desc table int */
#define VINO_INTSTAT_A (VINO_INTSTAT_A_FIELD_TRANS | \
VINO_INTSTAT_A_FIFO_OF | \
VINO_INTSTAT_A_END_DESC_TBL)
#define VINO_INTSTAT_B_FIELD_TRANS (1<<3) /* Field transferred int */
#define VINO_INTSTAT_B_FIFO_OF (1<<4) /* FIFO overflow int */
#define VINO_INTSTAT_B_END_DESC_TBL (1<<5) /* End of desc table int */
#define VINO_INTSTAT_B (VINO_INTSTAT_B_FIELD_TRANS | \
VINO_INTSTAT_B_FIFO_OF | \
VINO_INTSTAT_B_END_DESC_TBL)
#define VINO_INTSTAT_A_EOF (1<<0) /* Field transferred int */
#define VINO_INTSTAT_A_FIFO (1<<1) /* FIFO overflow int */
#define VINO_INTSTAT_A_EOD (1<<2) /* End of desc table int */
#define VINO_INTSTAT_A (VINO_INTSTAT_A_EOF | \
VINO_INTSTAT_A_FIFO | \
VINO_INTSTAT_A_EOD)
#define VINO_INTSTAT_B_EOF (1<<3) /* Field transferred int */
#define VINO_INTSTAT_B_FIFO (1<<4) /* FIFO overflow int */
#define VINO_INTSTAT_B_EOD (1<<5) /* End of desc table int */
#define VINO_INTSTAT_B (VINO_INTSTAT_B_EOF | \
VINO_INTSTAT_B_FIFO | \
VINO_INTSTAT_B_EOD)
u32 _pad_intr_status;
volatile u32 intr_status;