patch-2.4.0-test7 linux/drivers/char/tuner-3036.c

• Lines: 228
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test6/linux/drivers/char/tuner-3036.c
• Orig date: Thu Mar 2 14:36:22 2000

diff -u --recursive --new-file v2.4.0-test6/linux/drivers/char/tuner-3036.c linux/drivers/char/tuner-3036.c
@@ -1,227 +0,0 @@
-/*
- * Driver for Philips SAB3036 "CITAC" tuner control chip.
- *
- * Author: Phil Blundell <philb@gnu.org>
- *
- * The SAB3036 is just about different enough from the chips that
- * tuner.c copes with to make it not worth the effort to crowbar
- * the support into that file.  So instead we have a separate driver. 
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/malloc.h>
-#include <linux/version.h>
-#include <linux/init.h>
-
-#include <linux/i2c.h>
-#include <linux/videodev.h>
-
-#include "tuner.h"
-
-static int debug;	/* insmod parameter */
-static int this_adap;
-
-static struct i2c_client client_template;
-
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {I2C_CLIENT_END};
-static unsigned short normal_i2c_range[] = {0x60, 0x61, I2C_CLIENT_END};
-static unsigned short probe[2]        = { I2C_CLIENT_END, I2C_CLIENT_END };
-static unsigned short probe_range[2]  = { I2C_CLIENT_END, I2C_CLIENT_END };
-static unsigned short ignore[2]       = { I2C_CLIENT_END, I2C_CLIENT_END };
-static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
-static unsigned short force[2]        = { I2C_CLIENT_END, I2C_CLIENT_END };
-
-static struct i2c_client_address_data addr_data = {
-	normal_i2c, normal_i2c_range, 
-	probe, probe_range, 
-	ignore, ignore_range, 
-	force
-};
-
-/* ---------------------------------------------------------------------- */
-
-static unsigned char
-tuner_getstatus (struct i2c_client *c)
-{
-	unsigned char byte;
-	if (i2c_master_recv(c, &byte, 1) != 1)
-		printk(KERN_ERR "tuner-3036: I/O error.\n");
-	return byte;
-}
-
-#define TUNER_FL        0x80
-
-static int 
-tuner_islocked (struct i2c_client *c)
-{
-        return (tuner_getstatus(c) & TUNER_FL);
-}
-
-/* ---------------------------------------------------------------------- */
-
-static void 
-set_tv_freq(struct i2c_client *c, int freq)
-{
-	u16 div = ((freq * 20) / 16);
-	unsigned long give_up = jiffies + HZ;
-	unsigned char buffer[2];
-
-	if (debug)
-		printk(KERN_DEBUG "tuner: setting frequency %dMHz, divisor %x\n", freq / 16, div);
-	
-	/* Select high tuning current */
-	buffer[0] = 0x29;
-	buffer[1] = 0x3e;
-
-	if (i2c_master_send(c, buffer, 2) != 2)
-		printk("tuner: i2c i/o error 1\n");
-	
-	buffer[0] = 0x80 | ((div>>8) & 0x7f);
-	buffer[1] = div & 0xff;
-
-	if (i2c_master_send(c, buffer, 2) != 2)
-		printk("tuner: i2c i/o error 2\n");
-	
-	while (!tuner_islocked(c) && time_before(jiffies, give_up))
-		schedule();
-	       
-	if (!tuner_islocked(c))
-		printk(KERN_WARNING "tuner: failed to achieve PLL lock\n");
-	
-	/* Select low tuning current and engage AFC */
-	buffer[0] = 0x29;
-	buffer[1] = 0xb2;
-
-	if (i2c_master_send(c, buffer, 2) != 2)
-		printk("tuner: i2c i/o error 3\n");
-
-	if (debug)
-		printk(KERN_DEBUG "tuner: status %02x\n", tuner_getstatus(c));
-}
-
-/* ---------------------------------------------------------------------- */
-
-static int 
-tuner_attach(struct i2c_adapter *adap, int addr,
-	     unsigned short flags, int kind)
-{
-	static unsigned char buffer[] = { 0x29, 0x32, 0x2a, 0, 0x2b, 0 };
-
-	struct i2c_client *client;
-
-	if (this_adap > 0)
-		return -1;
-	this_adap++;
-	
-        client_template.adapter = adap;
-        client_template.addr = addr;
-
-	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (client == NULL)
-                return -ENOMEM;
-        memcpy(client, &client_template, sizeof(struct i2c_client));
-
-	printk("tuner: SAB3036 found, status %02x\n", tuner_getstatus(client));
-
-        i2c_attach_client(client);
-	MOD_INC_USE_COUNT;
-
-	if (i2c_master_send(client, buffer, 2) != 2)
-		printk("tuner: i2c i/o error 1\n");
-	if (i2c_master_send(client, buffer+2, 2) != 2)
-		printk("tuner: i2c i/o error 2\n");
-	if (i2c_master_send(client, buffer+4, 2) != 2)
-		printk("tuner: i2c i/o error 3\n");
-	return 0;
-}
-
-static int 
-tuner_detach(struct i2c_client *c)
-{
-	MOD_DEC_USE_COUNT;
-	return 0;
-}
-
-static int 
-tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
-{
-	int *iarg = (int*)arg;
-
-	switch (cmd) 
-	{
-		case TUNER_SET_TVFREQ:
-			set_tv_freq(client, *iarg);
-			break;
-	    
-		default:
-			return -EINVAL;
-	}
-	return 0;
-}
-
-static int 
-tuner_probe(struct i2c_adapter *adap)
-{
-	this_adap = 0;
-	if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_LP))
-		return i2c_probe(adap, &addr_data, tuner_attach);
-	return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static struct i2c_driver 
-i2c_driver_tuner = 
-{
-	"sab3036",		/* name       */
-	I2C_DRIVERID_SAB3036,	/* ID         */
-        I2C_DF_NOTIFY,
-	tuner_probe,
-	tuner_detach,
-	tuner_command
-};
-
-static struct i2c_client client_template =
-{
-        "SAB3036",		/* name       */
-        -1,
-        0,
-        0,
-        NULL,
-        &i2c_driver_tuner
-};
-
-EXPORT_NO_SYMBOLS;
-
-int __init
-tuner3036_init(void)
-{
-	i2c_add_driver(&i2c_driver_tuner);
-	return 0;
-}
-
-void __exit
-tuner3036_exit(void)
-{
-	i2c_del_driver(&i2c_driver_tuner);
-}
-
-MODULE_DESCRIPTION("SAB3036 tuner driver");
-MODULE_AUTHOR("Philip Blundell <philb@gnu.org>");
-MODULE_PARM(debug,"i");
-MODULE_PARM_DESC(debug,"Enable debugging output");
-
-module_init(tuner3036_init);
-module_exit(tuner3036_exit);