+
/*
- $Id: cx88-i2c.c,v 1.23 2005/06/12 04:19:19 mchehab Exp $
cx88-i2c.c -- all the i2c code is here
Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
- & Marcus Metzler (mocm@thp.uni-koeln.de)
+ & Marcus Metzler (mocm@thp.uni-koeln.de)
(c) 2002 Yurij Sysoev <yurij@naturesoft.net>
(c) 1999-2003 Gerd Knorr <kraxel@bytesex.org>
+ (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org>
+ - Multituner support and i2c address binding
+
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
*/
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/init.h>
#include <asm/io.h>
#include "cx88.h"
+#include <media/v4l2-common.h>
-static unsigned int i2c_debug = 0;
+static unsigned int i2c_debug;
module_param(i2c_debug, int, 0644);
MODULE_PARM_DESC(i2c_debug,"enable debug messages [i2c]");
-static unsigned int i2c_scan = 0;
+static unsigned int i2c_scan;
module_param(i2c_scan, int, 0444);
MODULE_PARM_DESC(i2c_scan,"scan i2c bus at insmod time");
+static unsigned int i2c_udelay = 5;
+module_param(i2c_udelay, int, 0644);
+MODULE_PARM_DESC(i2c_udelay,"i2c delay at insmod time, in usecs "
+ "(should be 5 or higher). Lower value means higher bus speed.");
+
#define dprintk(level,fmt, arg...) if (i2c_debug >= level) \
printk(KERN_DEBUG "%s: " fmt, core->name , ## arg)
static int attach_inform(struct i2c_client *client)
{
- struct tuner_addr tun_addr;
struct cx88_core *core = i2c_get_adapdata(client->adapter);
- dprintk(1, "i2c attach [addr=0x%x,client=%s]\n",
- client->addr, i2c_clientname(client));
- if (!client->driver->command)
- return 0;
-
- if (core->radio_type != UNSET) {
- tun_addr.v4l2_tuner = V4L2_TUNER_RADIO;
- tun_addr.type = core->radio_type;
- tun_addr.addr = core->radio_addr;
- client->driver->command(client,TUNER_SET_TYPE_ADDR, &tun_addr);
- }
- if (core->tuner_type != UNSET) {
- tun_addr.v4l2_tuner = V4L2_TUNER_ANALOG_TV;
- tun_addr.type = core->tuner_type;
- tun_addr.addr = core->tuner_addr;
- client->driver->command(client,TUNER_SET_TYPE_ADDR, &tun_addr);
- }
-
- if (core->tda9887_conf)
- client->driver->command(client, TDA9887_SET_CONFIG, &core->tda9887_conf);
+ dprintk(1, "%s i2c attach [addr=0x%x,client=%s]\n",
+ client->driver->driver.name, client->addr, client->name);
return 0;
}
{
struct cx88_core *core = i2c_get_adapdata(client->adapter);
- dprintk(1, "i2c detach [client=%s]\n", i2c_clientname(client));
+ dprintk(1, "i2c detach [client=%s]\n", client->name);
return 0;
}
{
if (0 != core->i2c_rc)
return;
+
+ if (core->gate_ctrl)
+ core->gate_ctrl(core, 1);
+
i2c_clients_command(&core->i2c_adap, cmd, arg);
+
+ if (core->gate_ctrl)
+ core->gate_ctrl(core, 0);
}
-static struct i2c_algo_bit_data cx8800_i2c_algo_template = {
+static const struct i2c_algo_bit_data cx8800_i2c_algo_template = {
.setsda = cx8800_bit_setsda,
.setscl = cx8800_bit_setscl,
.getsda = cx8800_bit_getsda,
.getscl = cx8800_bit_getscl,
.udelay = 16,
- .mdelay = 10,
.timeout = 200,
};
/* ----------------------------------------------------------------------- */
-static struct i2c_adapter cx8800_i2c_adap_template = {
- I2C_DEVNAME("cx2388x"),
- .owner = THIS_MODULE,
- .id = I2C_HW_B_CX2388x,
- .client_register = attach_inform,
- .client_unregister = detach_inform,
-};
-
-static struct i2c_client cx8800_i2c_client_template = {
- I2C_DEVNAME("cx88xx internal"),
-};
-
static char *i2c_devs[128] = {
+ [ 0x1c >> 1 ] = "lgdt330x",
[ 0x86 >> 1 ] = "tda9887/cx22702",
[ 0xa0 >> 1 ] = "eeprom",
[ 0xc0 >> 1 ] = "tuner (analog)",
[ 0xc2 >> 1 ] = "tuner (analog/dvb)",
+ [ 0xc8 >> 1 ] = "xc5000",
};
static void do_i2c_scan(char *name, struct i2c_client *c)
unsigned char buf;
int i,rc;
- for (i = 0; i < 128; i++) {
+ for (i = 0; i < ARRAY_SIZE(i2c_devs); i++) {
c->addr = i;
rc = i2c_master_recv(c,&buf,0);
if (rc < 0)
/* init + register i2c algo-bit adapter */
int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci)
{
- memcpy(&core->i2c_adap, &cx8800_i2c_adap_template,
- sizeof(core->i2c_adap));
+ /* Prevents usage of invalid delay values */
+ if (i2c_udelay<5)
+ i2c_udelay=5;
+
memcpy(&core->i2c_algo, &cx8800_i2c_algo_template,
sizeof(core->i2c_algo));
- memcpy(&core->i2c_client, &cx8800_i2c_client_template,
- sizeof(core->i2c_client));
- if (core->tuner_type != TUNER_ABSENT)
+ if (core->board.tuner_type != TUNER_ABSENT)
core->i2c_adap.class |= I2C_CLASS_TV_ANALOG;
- if (cx88_boards[core->board].dvb)
+ if (core->board.mpeg & CX88_MPEG_DVB)
core->i2c_adap.class |= I2C_CLASS_TV_DIGITAL;
core->i2c_adap.dev.parent = &pci->dev;
strlcpy(core->i2c_adap.name,core->name,sizeof(core->i2c_adap.name));
- core->i2c_algo.data = core;
- i2c_set_adapdata(&core->i2c_adap,core);
- core->i2c_adap.algo_data = &core->i2c_algo;
- core->i2c_client.adapter = &core->i2c_adap;
+ core->i2c_adap.owner = THIS_MODULE;
+ core->i2c_adap.id = I2C_HW_B_CX2388x;
+ core->i2c_adap.client_register = attach_inform;
+ core->i2c_adap.client_unregister = detach_inform;
+ core->i2c_algo.udelay = i2c_udelay;
+ core->i2c_algo.data = core;
+ i2c_set_adapdata(&core->i2c_adap,core);
+ core->i2c_adap.algo_data = &core->i2c_algo;
+ core->i2c_client.adapter = &core->i2c_adap;
+ strlcpy(core->i2c_client.name, "cx88xx internal", I2C_NAME_SIZE);
cx8800_bit_setscl(core,1);
cx8800_bit_setsda(core,1);
core->i2c_rc = i2c_bit_add_bus(&core->i2c_adap);
if (0 == core->i2c_rc) {
+ static u8 tuner_data[] =
+ { 0x0b, 0xdc, 0x86, 0x52 };
+ static struct i2c_msg tuner_msg =
+ { .flags = 0, .addr = 0xc2 >> 1, .buf = tuner_data, .len = 4 };
+
dprintk(1, "i2c register ok\n");
+ switch( core->boardnr ) {
+ case CX88_BOARD_HAUPPAUGE_HVR1300:
+ case CX88_BOARD_HAUPPAUGE_HVR3000:
+ case CX88_BOARD_HAUPPAUGE_HVR4000:
+ printk("%s: i2c init: enabling analog demod on HVR1300/3000/4000 tuner\n",
+ core->name);
+ i2c_transfer(core->i2c_client.adapter, &tuner_msg, 1);
+ break;
+ default:
+ break;
+ }
if (i2c_scan)
do_i2c_scan(core->name,&core->i2c_client);
} else
/* ----------------------------------------------------------------------- */
EXPORT_SYMBOL(cx88_call_i2c_clients);
-EXPORT_SYMBOL(cx88_i2c_init);
/*
* Local variables:
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff