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

• Lines: 452
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test6/linux/drivers/char/tuner.c
• Orig date: Thu Jul 27 17:38:00 2000

diff -u --recursive --new-file v2.4.0-test6/linux/drivers/char/tuner.c linux/drivers/char/tuner.c
@@ -1,451 +0,0 @@
-#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/poll.h>
-#include <linux/i2c.h>
-#include <linux/types.h>
-#include <linux/videodev.h>
-#include <linux/init.h>
-
-#include "tuner.h"
-#include "audiochip.h"
-
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {I2C_CLIENT_END};
-static unsigned short normal_i2c_range[] = {0x60,0x6f,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 int debug =  0; /* insmod parameter */
-static int type  = -1; /* insmod parameter */
-
-static int addr  =  0;
-static int this_adap;
-
-#define dprintk     if (debug) printk
-
-MODULE_PARM(debug,"i");
-MODULE_PARM(type,"i");
-MODULE_PARM(addr,"i");
-
-struct tuner
-{
-	int type;            /* chip type */
-	int freq;            /* keep track of the current settings */
-	int std;
-
-	int radio;
-	int mode;            /* PAL(0)/SECAM(1) mode (PHILIPS_SECAM only) */
-};
-
-static struct i2c_driver driver;
-static struct i2c_client client_template;
-
-/* ---------------------------------------------------------------------- */
-
-struct tunertype 
-{
-	char *name;
-	unsigned char Vendor;
-	unsigned char Type;
-  
-	unsigned short thresh1; /* frequency Range for UHF,VHF-L, VHF_H */   
-	unsigned short thresh2;  
-	unsigned char VHF_L;
-	unsigned char VHF_H;
-	unsigned char UHF;
-	unsigned char config; 
-	unsigned short IFPCoff;
-	unsigned char mode; /* mode change value (tested PHILIPS_SECAM only) */
-			/* 0x01 -> ??? no change ??? */
-			/* 0x02 -> PAL BDGHI / SECAM L */
-			/* 0x04 -> ??? PAL others / SECAM others ??? */
-	int capability;
-};
-
-/*
- *	The floats in the tuner struct are computed at compile time
- *	by gcc and cast back to integers. Thus we don't violate the
- *	"no float in kernel" rule.
- */
-static struct tunertype tuners[] = {
-        { "Temic PAL", TEMIC, PAL,
-	  16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
-	{ "Philips PAL_I", Philips, PAL_I,
-	  16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
-	{ "Philips NTSC", Philips, NTSC,
-	  16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
-	{ "Philips SECAM", Philips, SECAM,
-	  16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623,0x02},
-	{ "NoTuner", NoTuner, NOTUNER,
-	  0,0,0x00,0x00,0x00,0x00,0x00,000},
-	{ "Philips PAL", Philips, PAL,
-	  16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
-	{ "Temic NTSC", TEMIC, NTSC,
-	  16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
-	{ "Temic PAL_I", TEMIC, PAL_I,
-	  16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
- 	{ "Temic 4036 FY5 NTSC", TEMIC, NTSC,
-	  16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
-        { "Alps HSBH1", TEMIC, NTSC,
-	  16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
-        { "Alps TSBE1",TEMIC,PAL,
-	  16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
-        { "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modtec MM205 */
-	  16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
-        { "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
-	  16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
-        { "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
-	  16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
-	{ "Temic 4006FH5", TEMIC, PAL_I,
-	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623}, 
-};
-#define TUNERS (sizeof(tuners)/sizeof(struct tunertype))
-
-/* ---------------------------------------------------------------------- */
-
-static int tuner_getstatus(struct i2c_client *c)
-{
-	unsigned char byte;
-
-	if (1 != i2c_master_recv(c,&byte,1))
-		return 0;
-	return byte;
-}
-
-#define TUNER_POR       0x80
-#define TUNER_FL        0x40
-#define TUNER_MODE      0x38
-#define TUNER_AFC       0x07
-
-static int tuner_islocked (struct i2c_client *c)
-{
-        return (tuner_getstatus (c) & TUNER_FL);
-}
-
-static int tuner_afcstatus (struct i2c_client *c)
-{
-        return (tuner_getstatus (c) & TUNER_AFC) - 2;
-}
-
-#if 0 /* unused */
-static int tuner_mode (struct i2c_client *c)
-{
-        return (tuner_getstatus (c) & TUNER_MODE) >> 3;
-}
-#endif
-
-static void set_tv_freq(struct i2c_client *c, int freq)
-{
-	u8 config;
-	u16 div;
-	struct tunertype *tun;
-	struct tuner *t = c->data;
-        unsigned char buffer[4];
-	int rc;
-
-	if (t->type == -1) {
-		printk("tuner: tuner type not set\n");
-		return;
-	}
-
-	tun=&tuners[t->type];
-	if (freq < tun->thresh1) 
-		config = tun->VHF_L;
-	else if (freq < tun->thresh2) 
-		config = tun->VHF_H;
-	else
-		config = tun->UHF;
-
-#if 1   // Fix colorstandard mode change
-	if (t->type == TUNER_PHILIPS_SECAM && t->mode)
-		config |= tun->mode;
-	else
-		config &= ~tun->mode;
-#else
-		config &= ~tun->mode;
-#endif
-
-	div=freq + tun->IFPCoff;
-
-    /*
-     * Philips FI1216MK2 remark from specification :
-     * for channel selection involving band switching, and to ensure
-     * smooth tuning to the desired channel without causing
-     * unnecessary charge pump action, it is recommended to consider
-     * the difference between wanted channel frequency and the
-     * current channel frequency.  Unnecessary charge pump action
-     * will result in very low tuning voltage which may drive the
-     * oscillator to extreme conditions.
-     */
-    /*
-     * Progfou: specification says to send config data before
-     * frequency in case (wanted frequency < current frequency).
-     */
-
-	if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
-		buffer[0] = tun->config;
-		buffer[1] = config;
-		buffer[2] = (div>>8) & 0x7f;
-		buffer[3] = div      & 0xff;
-	} else {
-		buffer[0] = (div>>8) & 0x7f;
-		buffer[1] = div      & 0xff;
-		buffer[2] = tun->config;
-		buffer[3] = config;
-	}
-
-        if (4 != (rc = i2c_master_send(c,buffer,4)))
-                printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
-
-}
-
-static void set_radio_freq(struct i2c_client *c, int freq)
-{
-	u8 config;
-	u16 div;
-	struct tunertype *tun;
-	struct tuner *t = (struct tuner*)c->data;
-        unsigned char buffer[4];
-	int rc;
-
-	if (t->type == -1) {
-		printk("tuner: tuner type not set\n");
-		return;
-	}
-
-	tun=&tuners[t->type];
-	config = 0xa5;
-	div=freq + (int)(16*10.7);
-  	div&=0x7fff;
-
-        buffer[0] = (div>>8) & 0x7f;
-        buffer[1] = div      & 0xff;
-        buffer[2] = tun->config;
-        buffer[3] = config;
-        if (4 != (rc = i2c_master_send(c,buffer,4)))
-                printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
-
-	if (debug) {
-		current->state   = TASK_INTERRUPTIBLE;
-		schedule_timeout(HZ/10);
-		
-		if (tuner_islocked (c))
-			printk ("tuner: PLL locked\n");
-		else
-			printk ("tuner: PLL not locked\n");
-		
-		printk ("tuner: AFC: %d\n", tuner_afcstatus (c));
-	}
-}
-/* ---------------------------------------------------------------------- */
-
-
-static int tuner_attach(struct i2c_adapter *adap, int addr,
-			unsigned short flags, int kind)
-{
-	struct tuner *t;
-	struct i2c_client *client;
-
-	if (this_adap > 0)
-		return -1;
-	this_adap++;
-	
-        client_template.adapter = adap;
-        client_template.addr = addr;
-
-        printk("tuner: chip found @ 0x%x\n",addr);
-
-        if (NULL == (client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)))
-                return -ENOMEM;
-        memcpy(client,&client_template,sizeof(struct i2c_client));
-        client->data = t = kmalloc(sizeof(struct tuner),GFP_KERNEL);
-        if (NULL == t) {
-                kfree(client);
-                return -ENOMEM;
-        }
-        memset(t,0,sizeof(struct tuner));
-	if (type >= 0 && type < TUNERS) {
-		t->type = type;
-		strncpy(client->name, tuners[t->type].name, sizeof(client->name));
-	} else {
-		t->type = -1;
-	}
-        i2c_attach_client(client);
-	MOD_INC_USE_COUNT;
-
-	return 0;
-}
-
-static int tuner_probe(struct i2c_adapter *adap)
-{
-	if (0 != addr) {
-		normal_i2c_range[0] = addr;
-		normal_i2c_range[1] = addr;
-	}
-	this_adap = 0;
-	if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_BT848))
-		return i2c_probe(adap, &addr_data, tuner_attach);
-	return 0;
-}
-
-static int tuner_detach(struct i2c_client *client)
-{
-	struct tuner *t = (struct tuner*)client->data;
-
-	i2c_detach_client(client);
-	kfree(t);
-	kfree(client);
-	MOD_DEC_USE_COUNT;
-	return 0;
-}
-
-static int
-tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
-{
-	struct tuner *t = (struct tuner*)client->data;
-        int   *iarg = (int*)arg;
-#if 0
-        __u16 *sarg = (__u16*)arg;
-#endif
-
-        switch (cmd) {
-
-	/* --- configuration --- */
-	case TUNER_SET_TYPE:
-		if (t->type != -1)
-			return 0;
-		if (*iarg < 0 || *iarg >= TUNERS)
-			return 0;
-		t->type = *iarg;
-		dprintk("tuner: type set to %d (%s)\n",
-                        t->type,tuners[t->type].name);
-		strncpy(client->name, tuners[t->type].name, sizeof(client->name));
-		break;
-	case AUDC_SET_RADIO:
-		t->radio = 1;
-		break;
-		
-	/* --- v4l ioctls --- */
-	/* take care: bttv does userspace copying, we'll get a
-	   kernel pointer here... */
-	case VIDIOCSCHAN:
-	{
-		struct video_channel *vc = arg;
-		
-		t->radio = 0;
-		if (t->type == TUNER_PHILIPS_SECAM) {
-			t->mode = (vc->norm == VIDEO_MODE_SECAM) ? 1 : 0;
-			set_tv_freq(client,t->freq);
-		}
-		return 0;
-	}
-	case VIDIOCSFREQ:
-	{
-		unsigned long *v = arg;
-
-		t->freq = *v;
-		if (t->radio) {
-			dprintk("tuner: radio freq set to %d.%02d\n",
-				(*iarg)/16,(*iarg)%16*100/16);
-			set_radio_freq(client,t->freq);
-		} else {
-			dprintk("tuner: tv freq set to %d.%02d\n",
-				(*iarg)/16,(*iarg)%16*100/16);
-			set_tv_freq(client,t->freq);
-		}
-		return 0;
-	}
-#if 0
-	/* --- old, obsolete interface --- */
-	case TUNER_SET_TVFREQ:
-		dprintk("tuner: tv freq set to %d.%02d\n",
-			(*iarg)/16,(*iarg)%16*100/16);
-		set_tv_freq(client,*iarg);
-		t->radio = 0;
-		t->freq = *iarg;
-		break;
-
-	case TUNER_SET_RADIOFREQ:
-		dprintk("tuner: radio freq set to %d.%02d\n",
-			(*iarg)/16,(*iarg)%16*100/16);
-		set_radio_freq(client,*iarg);
-		t->radio = 1;
-		t->freq = *iarg;
-		break;
-	case TUNER_SET_MODE:
-		if (t->type != TUNER_PHILIPS_SECAM) {
-			dprintk("tuner: trying to change mode for other than TUNER_PHILIPS_SECAM\n");
-		} else {
-			int mode=(*sarg==VIDEO_MODE_SECAM)?1:0;
-			dprintk("tuner: mode set to %d\n", *sarg);
-			t->mode = mode;
-			set_tv_freq(client,t->freq);
-		}
-		break;
-#endif
-	default:
-		/* nothing */
-	}
-	
-	return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static struct i2c_driver driver = {
-        "i2c TV tuner driver",
-        I2C_DRIVERID_TUNER,
-        I2C_DF_NOTIFY,
-        tuner_probe,
-        tuner_detach,
-        tuner_command,
-};
-
-static struct i2c_client client_template =
-{
-        "(unset)",		/* name       */
-        -1,
-        0,
-        0,
-        NULL,
-        &driver
-};
-
-EXPORT_NO_SYMBOLS;
-
-int tuner_init_module(void)
-{
-	i2c_add_driver(&driver);
-	return 0;
-}
-
-void tuner_cleanup_module(void)
-{
-	i2c_del_driver(&driver);
-}
-
-module_init(tuner_init_module);
-module_exit(tuner_cleanup_module);
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */