916 lines
22 KiB
C
916 lines
22 KiB
C
/*
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*
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* i2c tv tuner chip device driver
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* core core, i.e. kernel interfaces, registering and so on
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/poll.h>
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#include <linux/i2c.h>
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#include <linux/types.h>
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#include <linux/videodev.h>
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#include <linux/init.h>
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#include <media/tuner.h>
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#include <media/v4l2-common.h>
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#include "tuner-driver.h"
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#define UNSET (-1U)
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/* standard i2c insmod options */
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static unsigned short normal_i2c[] = {
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#ifdef CONFIG_TUNER_TEA5761
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0x10,
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#endif
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0x42, 0x43, 0x4a, 0x4b, /* tda8290 */
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0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
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0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
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I2C_CLIENT_END
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};
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I2C_CLIENT_INSMOD;
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/* insmod options used at init time => read/only */
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static unsigned int addr = 0;
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static unsigned int no_autodetect = 0;
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static unsigned int show_i2c = 0;
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/* insmod options used at runtime => read/write */
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int tuner_debug = 0;
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static unsigned int tv_range[2] = { 44, 958 };
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static unsigned int radio_range[2] = { 65, 108 };
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static char pal[] = "--";
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static char secam[] = "--";
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static char ntsc[] = "-";
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module_param(addr, int, 0444);
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module_param(no_autodetect, int, 0444);
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module_param(show_i2c, int, 0444);
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module_param_named(debug,tuner_debug, int, 0644);
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module_param_string(pal, pal, sizeof(pal), 0644);
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module_param_string(secam, secam, sizeof(secam), 0644);
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module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
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module_param_array(tv_range, int, NULL, 0644);
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module_param_array(radio_range, int, NULL, 0644);
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MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
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MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
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MODULE_LICENSE("GPL");
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static struct i2c_driver driver;
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static struct i2c_client client_template;
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/* ---------------------------------------------------------------------- */
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/* Set tuner frequency, freq in Units of 62.5kHz = 1/16MHz */
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static void set_tv_freq(struct i2c_client *c, unsigned int freq)
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{
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struct tuner *t = i2c_get_clientdata(c);
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if (t->type == UNSET) {
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tuner_warn ("tuner type not set\n");
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return;
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}
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if (NULL == t->ops.set_tv_freq) {
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tuner_warn ("Tuner has no way to set tv freq\n");
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return;
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}
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if (freq < tv_range[0] * 16 || freq > tv_range[1] * 16) {
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tuner_dbg ("TV freq (%d.%02d) out of range (%d-%d)\n",
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freq / 16, freq % 16 * 100 / 16, tv_range[0],
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tv_range[1]);
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/* V4L2 spec: if the freq is not possible then the closest
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possible value should be selected */
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if (freq < tv_range[0] * 16)
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freq = tv_range[0] * 16;
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else
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freq = tv_range[1] * 16;
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}
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t->ops.set_tv_freq(c, freq);
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}
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static void set_radio_freq(struct i2c_client *c, unsigned int freq)
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{
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struct tuner *t = i2c_get_clientdata(c);
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if (t->type == UNSET) {
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tuner_warn ("tuner type not set\n");
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return;
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}
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if (NULL == t->ops.set_radio_freq) {
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tuner_warn ("tuner has no way to set radio frequency\n");
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return;
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}
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if (freq < radio_range[0] * 16000 || freq > radio_range[1] * 16000) {
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tuner_dbg ("radio freq (%d.%02d) out of range (%d-%d)\n",
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freq / 16000, freq % 16000 * 100 / 16000,
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radio_range[0], radio_range[1]);
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/* V4L2 spec: if the freq is not possible then the closest
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possible value should be selected */
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if (freq < radio_range[0] * 16000)
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freq = radio_range[0] * 16000;
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else
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freq = radio_range[1] * 16000;
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}
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t->ops.set_radio_freq(c, freq);
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}
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static void set_freq(struct i2c_client *c, unsigned long freq)
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{
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struct tuner *t = i2c_get_clientdata(c);
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switch (t->mode) {
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case V4L2_TUNER_RADIO:
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tuner_dbg("radio freq set to %lu.%02lu\n",
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freq / 16000, freq % 16000 * 100 / 16000);
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set_radio_freq(c, freq);
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t->radio_freq = freq;
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break;
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case V4L2_TUNER_ANALOG_TV:
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case V4L2_TUNER_DIGITAL_TV:
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tuner_dbg("tv freq set to %lu.%02lu\n",
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freq / 16, freq % 16 * 100 / 16);
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set_tv_freq(c, freq);
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t->tv_freq = freq;
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break;
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}
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}
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static void set_type(struct i2c_client *c, unsigned int type,
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unsigned int new_mode_mask, unsigned int new_config,
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int (*tuner_callback) (void *dev, int command,int arg))
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{
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struct tuner *t = i2c_get_clientdata(c);
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unsigned char buffer[4];
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if (type == UNSET || type == TUNER_ABSENT) {
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tuner_dbg ("tuner 0x%02x: Tuner type absent\n",c->addr);
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return;
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}
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if (type >= tuner_count) {
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tuner_warn ("tuner 0x%02x: Tuner count greater than %d\n",c->addr,tuner_count);
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return;
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}
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t->type = type;
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t->config = new_config;
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if (tuner_callback != NULL) {
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tuner_dbg("defining GPIO callback\n");
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t->tuner_callback = tuner_callback;
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}
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/* This code detects calls by card attach_inform */
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if (NULL == t->i2c.dev.driver) {
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tuner_dbg ("tuner 0x%02x: called during i2c_client register by adapter's attach_inform\n", c->addr);
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return;
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}
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/* discard private data, in case set_type() was previously called */
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if (t->ops.release)
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t->ops.release(c);
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else {
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kfree(t->priv);
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t->priv = NULL;
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}
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switch (t->type) {
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case TUNER_MT2032:
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microtune_init(c);
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break;
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case TUNER_PHILIPS_TDA8290:
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tda8290_init(c);
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break;
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case TUNER_TEA5767:
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if (tea5767_tuner_init(c) == EINVAL) {
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t->type = TUNER_ABSENT;
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t->mode_mask = T_UNINITIALIZED;
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return;
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}
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t->mode_mask = T_RADIO;
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break;
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#ifdef CONFIG_TUNER_TEA5761
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case TUNER_TEA5761:
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if (tea5761_tuner_init(c) == EINVAL) {
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t->type = TUNER_ABSENT;
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t->mode_mask = T_UNINITIALIZED;
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return;
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}
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t->mode_mask = T_RADIO;
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break;
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#endif
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case TUNER_PHILIPS_FMD1216ME_MK3:
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buffer[0] = 0x0b;
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buffer[1] = 0xdc;
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buffer[2] = 0x9c;
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buffer[3] = 0x60;
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i2c_master_send(c, buffer, 4);
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mdelay(1);
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buffer[2] = 0x86;
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buffer[3] = 0x54;
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i2c_master_send(c, buffer, 4);
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default_tuner_init(c);
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break;
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case TUNER_PHILIPS_TD1316:
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buffer[0] = 0x0b;
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buffer[1] = 0xdc;
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buffer[2] = 0x86;
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buffer[3] = 0xa4;
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i2c_master_send(c,buffer,4);
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default_tuner_init(c);
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break;
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case TUNER_TDA9887:
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tda9887_tuner_init(c);
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break;
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default:
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default_tuner_init(c);
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break;
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}
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if (t->mode_mask == T_UNINITIALIZED)
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t->mode_mask = new_mode_mask;
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set_freq(c, (V4L2_TUNER_RADIO == t->mode) ? t->radio_freq : t->tv_freq);
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tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n",
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c->adapter->name, c->driver->driver.name, c->addr << 1, type,
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t->mode_mask);
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}
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/*
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* This function apply tuner config to tuner specified
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* by tun_setup structure. I addr is unset, then admin status
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* and tun addr status is more precise then current status,
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* it's applied. Otherwise status and type are applied only to
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* tuner with exactly the same addr.
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*/
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static void set_addr(struct i2c_client *c, struct tuner_setup *tun_setup)
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{
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struct tuner *t = i2c_get_clientdata(c);
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tuner_dbg("set addr for type %i\n", t->type);
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if ( (t->type == UNSET && ((tun_setup->addr == ADDR_UNSET) &&
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(t->mode_mask & tun_setup->mode_mask))) ||
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(tun_setup->addr == c->addr)) {
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set_type(c, tun_setup->type, tun_setup->mode_mask,
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tun_setup->config, tun_setup->tuner_callback);
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}
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}
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static inline int check_mode(struct tuner *t, char *cmd)
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{
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if ((1 << t->mode & t->mode_mask) == 0) {
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return EINVAL;
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}
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switch (t->mode) {
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case V4L2_TUNER_RADIO:
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tuner_dbg("Cmd %s accepted for radio\n", cmd);
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break;
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case V4L2_TUNER_ANALOG_TV:
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tuner_dbg("Cmd %s accepted for analog TV\n", cmd);
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break;
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case V4L2_TUNER_DIGITAL_TV:
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tuner_dbg("Cmd %s accepted for digital TV\n", cmd);
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break;
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}
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return 0;
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}
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/* get more precise norm info from insmod option */
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static int tuner_fixup_std(struct tuner *t)
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{
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if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
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switch (pal[0]) {
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case '6':
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tuner_dbg ("insmod fixup: PAL => PAL-60\n");
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t->std = V4L2_STD_PAL_60;
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break;
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case 'b':
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case 'B':
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case 'g':
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case 'G':
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tuner_dbg ("insmod fixup: PAL => PAL-BG\n");
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t->std = V4L2_STD_PAL_BG;
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break;
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case 'i':
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case 'I':
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tuner_dbg ("insmod fixup: PAL => PAL-I\n");
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t->std = V4L2_STD_PAL_I;
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break;
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case 'd':
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case 'D':
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case 'k':
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case 'K':
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tuner_dbg ("insmod fixup: PAL => PAL-DK\n");
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t->std = V4L2_STD_PAL_DK;
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break;
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case 'M':
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case 'm':
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tuner_dbg ("insmod fixup: PAL => PAL-M\n");
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t->std = V4L2_STD_PAL_M;
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break;
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case 'N':
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case 'n':
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if (pal[1] == 'c' || pal[1] == 'C') {
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tuner_dbg("insmod fixup: PAL => PAL-Nc\n");
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t->std = V4L2_STD_PAL_Nc;
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} else {
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tuner_dbg ("insmod fixup: PAL => PAL-N\n");
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t->std = V4L2_STD_PAL_N;
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}
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break;
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case '-':
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/* default parameter, do nothing */
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break;
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default:
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tuner_warn ("pal= argument not recognised\n");
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break;
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}
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}
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if ((t->std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
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switch (secam[0]) {
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case 'b':
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case 'B':
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case 'g':
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case 'G':
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case 'h':
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case 'H':
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tuner_dbg("insmod fixup: SECAM => SECAM-BGH\n");
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t->std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
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break;
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case 'd':
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case 'D':
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case 'k':
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case 'K':
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tuner_dbg ("insmod fixup: SECAM => SECAM-DK\n");
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t->std = V4L2_STD_SECAM_DK;
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break;
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case 'l':
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case 'L':
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if ((secam[1]=='C')||(secam[1]=='c')) {
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tuner_dbg ("insmod fixup: SECAM => SECAM-L'\n");
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t->std = V4L2_STD_SECAM_LC;
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} else {
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tuner_dbg ("insmod fixup: SECAM => SECAM-L\n");
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t->std = V4L2_STD_SECAM_L;
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}
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break;
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case '-':
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/* default parameter, do nothing */
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break;
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default:
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tuner_warn ("secam= argument not recognised\n");
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break;
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}
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}
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if ((t->std & V4L2_STD_NTSC) == V4L2_STD_NTSC) {
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switch (ntsc[0]) {
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case 'm':
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case 'M':
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tuner_dbg("insmod fixup: NTSC => NTSC-M\n");
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t->std = V4L2_STD_NTSC_M;
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break;
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case 'j':
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case 'J':
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tuner_dbg("insmod fixup: NTSC => NTSC_M_JP\n");
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t->std = V4L2_STD_NTSC_M_JP;
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break;
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case 'k':
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case 'K':
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tuner_dbg("insmod fixup: NTSC => NTSC_M_KR\n");
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t->std = V4L2_STD_NTSC_M_KR;
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break;
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case '-':
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/* default parameter, do nothing */
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break;
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default:
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tuner_info("ntsc= argument not recognised\n");
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break;
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}
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}
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return 0;
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}
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static void tuner_status(struct i2c_client *client)
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{
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struct tuner *t = i2c_get_clientdata(client);
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unsigned long freq, freq_fraction;
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const char *p;
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switch (t->mode) {
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case V4L2_TUNER_RADIO: p = "radio"; break;
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case V4L2_TUNER_ANALOG_TV: p = "analog TV"; break;
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case V4L2_TUNER_DIGITAL_TV: p = "digital TV"; break;
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default: p = "undefined"; break;
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}
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if (t->mode == V4L2_TUNER_RADIO) {
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freq = t->radio_freq / 16000;
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freq_fraction = (t->radio_freq % 16000) * 100 / 16000;
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} else {
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freq = t->tv_freq / 16;
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freq_fraction = (t->tv_freq % 16) * 100 / 16;
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}
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tuner_info("Tuner mode: %s\n", p);
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tuner_info("Frequency: %lu.%02lu MHz\n", freq, freq_fraction);
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tuner_info("Standard: 0x%08lx\n", (unsigned long)t->std);
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if (t->mode != V4L2_TUNER_RADIO)
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return;
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if (t->ops.has_signal) {
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tuner_info("Signal strength: %d\n", t->ops.has_signal(client));
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}
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if (t->ops.is_stereo) {
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tuner_info("Stereo: %s\n", t->ops.is_stereo(client) ? "yes" : "no");
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}
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}
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/* ---------------------------------------------------------------------- */
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/* static vars: used only in tuner_attach and tuner_probe */
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static unsigned default_mode_mask;
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/* During client attach, set_type is called by adapter's attach_inform callback.
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set_type must then be completed by tuner_attach.
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*/
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static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
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{
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struct tuner *t;
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client_template.adapter = adap;
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client_template.addr = addr;
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t = kzalloc(sizeof(struct tuner), GFP_KERNEL);
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if (NULL == t)
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return -ENOMEM;
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memcpy(&t->i2c, &client_template, sizeof(struct i2c_client));
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i2c_set_clientdata(&t->i2c, t);
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t->type = UNSET;
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t->audmode = V4L2_TUNER_MODE_STEREO;
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t->mode_mask = T_UNINITIALIZED;
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t->ops.tuner_status = tuner_status;
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if (show_i2c) {
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unsigned char buffer[16];
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int i,rc;
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memset(buffer, 0, sizeof(buffer));
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rc = i2c_master_recv(&t->i2c, buffer, sizeof(buffer));
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tuner_info("I2C RECV = ");
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for (i=0;i<rc;i++)
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printk("%02x ",buffer[i]);
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printk("\n");
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}
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/* HACK: This test were added to avoid tuner to probe tda9840 and tea6415c on the MXB card */
|
|
if (adap->id == I2C_HW_SAA7146 && addr < 0x4a)
|
|
return -ENODEV;
|
|
|
|
/* autodetection code based on the i2c addr */
|
|
if (!no_autodetect) {
|
|
switch (addr) {
|
|
#ifdef CONFIG_TUNER_TEA5761
|
|
case 0x10:
|
|
if (tea5761_autodetection(&t->i2c) != EINVAL) {
|
|
t->type = TUNER_TEA5761;
|
|
t->mode_mask = T_RADIO;
|
|
t->mode = T_STANDBY;
|
|
t->radio_freq = 87.5 * 16000; /* Sets freq to FM range */
|
|
default_mode_mask &= ~T_RADIO;
|
|
|
|
goto register_client;
|
|
}
|
|
break;
|
|
#endif
|
|
case 0x42:
|
|
case 0x43:
|
|
case 0x4a:
|
|
case 0x4b:
|
|
/* If chip is not tda8290, don't register.
|
|
since it can be tda9887*/
|
|
if (tda8290_probe(&t->i2c) == 0) {
|
|
tuner_dbg("chip at addr %x is a tda8290\n", addr);
|
|
} else {
|
|
/* Default is being tda9887 */
|
|
t->type = TUNER_TDA9887;
|
|
t->mode_mask = T_RADIO | T_ANALOG_TV | T_DIGITAL_TV;
|
|
t->mode = T_STANDBY;
|
|
goto register_client;
|
|
}
|
|
break;
|
|
case 0x60:
|
|
if (tea5767_autodetection(&t->i2c) != EINVAL) {
|
|
t->type = TUNER_TEA5767;
|
|
t->mode_mask = T_RADIO;
|
|
t->mode = T_STANDBY;
|
|
t->radio_freq = 87.5 * 16000; /* Sets freq to FM range */
|
|
default_mode_mask &= ~T_RADIO;
|
|
|
|
goto register_client;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Initializes only the first adapter found */
|
|
if (default_mode_mask != T_UNINITIALIZED) {
|
|
tuner_dbg ("Setting mode_mask to 0x%02x\n", default_mode_mask);
|
|
t->mode_mask = default_mode_mask;
|
|
t->tv_freq = 400 * 16; /* Sets freq to VHF High */
|
|
t->radio_freq = 87.5 * 16000; /* Sets freq to FM range */
|
|
default_mode_mask = T_UNINITIALIZED;
|
|
}
|
|
|
|
/* Should be just before return */
|
|
register_client:
|
|
tuner_info("chip found @ 0x%x (%s)\n", addr << 1, adap->name);
|
|
i2c_attach_client (&t->i2c);
|
|
set_type (&t->i2c,t->type, t->mode_mask, t->config, t->tuner_callback);
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_probe(struct i2c_adapter *adap)
|
|
{
|
|
if (0 != addr) {
|
|
normal_i2c[0] = addr;
|
|
normal_i2c[1] = I2C_CLIENT_END;
|
|
}
|
|
|
|
default_mode_mask = T_RADIO | T_ANALOG_TV | T_DIGITAL_TV;
|
|
|
|
if (adap->class & I2C_CLASS_TV_ANALOG)
|
|
return i2c_probe(adap, &addr_data, tuner_attach);
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_detach(struct i2c_client *client)
|
|
{
|
|
struct tuner *t = i2c_get_clientdata(client);
|
|
int err;
|
|
|
|
err = i2c_detach_client(&t->i2c);
|
|
if (err) {
|
|
tuner_warn
|
|
("Client deregistration failed, client not detached.\n");
|
|
return err;
|
|
}
|
|
|
|
if (t->ops.release)
|
|
t->ops.release(client);
|
|
else {
|
|
kfree(t->priv);
|
|
}
|
|
kfree(t);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Switch tuner to other mode. If tuner support both tv and radio,
|
|
* set another frequency to some value (This is needed for some pal
|
|
* tuners to avoid locking). Otherwise, just put second tuner in
|
|
* standby mode.
|
|
*/
|
|
|
|
static inline int set_mode(struct i2c_client *client, struct tuner *t, int mode, char *cmd)
|
|
{
|
|
if (mode == t->mode)
|
|
return 0;
|
|
|
|
t->mode = mode;
|
|
|
|
if (check_mode(t, cmd) == EINVAL) {
|
|
t->mode = T_STANDBY;
|
|
if (t->ops.standby)
|
|
t->ops.standby (client);
|
|
return EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define switch_v4l2() if (!t->using_v4l2) \
|
|
tuner_dbg("switching to v4l2\n"); \
|
|
t->using_v4l2 = 1;
|
|
|
|
static inline int check_v4l2(struct tuner *t)
|
|
{
|
|
/* bttv still uses both v4l1 and v4l2 calls to the tuner (v4l2 for
|
|
TV, v4l1 for radio), until that is fixed this code is disabled.
|
|
Otherwise the radio (v4l1) wouldn't tune after using the TV (v4l2)
|
|
first. */
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
|
|
{
|
|
struct tuner *t = i2c_get_clientdata(client);
|
|
|
|
if (tuner_debug>1)
|
|
v4l_i2c_print_ioctl(&(t->i2c),cmd);
|
|
|
|
switch (cmd) {
|
|
/* --- configuration --- */
|
|
case TUNER_SET_TYPE_ADDR:
|
|
tuner_dbg ("Calling set_type_addr for type=%d, addr=0x%02x, mode=0x%02x, config=0x%02x\n",
|
|
((struct tuner_setup *)arg)->type,
|
|
((struct tuner_setup *)arg)->addr,
|
|
((struct tuner_setup *)arg)->mode_mask,
|
|
((struct tuner_setup *)arg)->config);
|
|
|
|
set_addr(client, (struct tuner_setup *)arg);
|
|
break;
|
|
case AUDC_SET_RADIO:
|
|
if (set_mode(client, t, V4L2_TUNER_RADIO, "AUDC_SET_RADIO")
|
|
== EINVAL)
|
|
return 0;
|
|
if (t->radio_freq)
|
|
set_freq(client, t->radio_freq);
|
|
break;
|
|
case TUNER_SET_STANDBY:
|
|
if (check_mode(t, "TUNER_SET_STANDBY") == EINVAL)
|
|
return 0;
|
|
t->mode = T_STANDBY;
|
|
if (t->ops.standby)
|
|
t->ops.standby (client);
|
|
break;
|
|
#ifdef CONFIG_VIDEO_V4L1
|
|
case VIDIOCSAUDIO:
|
|
if (check_mode(t, "VIDIOCSAUDIO") == EINVAL)
|
|
return 0;
|
|
if (check_v4l2(t) == EINVAL)
|
|
return 0;
|
|
|
|
/* Should be implemented, since bttv calls it */
|
|
tuner_dbg("VIDIOCSAUDIO not implemented.\n");
|
|
break;
|
|
case VIDIOCSCHAN:
|
|
{
|
|
static const v4l2_std_id map[] = {
|
|
[VIDEO_MODE_PAL] = V4L2_STD_PAL,
|
|
[VIDEO_MODE_NTSC] = V4L2_STD_NTSC_M,
|
|
[VIDEO_MODE_SECAM] = V4L2_STD_SECAM,
|
|
[4 /* bttv */ ] = V4L2_STD_PAL_M,
|
|
[5 /* bttv */ ] = V4L2_STD_PAL_N,
|
|
[6 /* bttv */ ] = V4L2_STD_NTSC_M_JP,
|
|
};
|
|
struct video_channel *vc = arg;
|
|
|
|
if (check_v4l2(t) == EINVAL)
|
|
return 0;
|
|
|
|
if (set_mode(client,t,V4L2_TUNER_ANALOG_TV, "VIDIOCSCHAN")==EINVAL)
|
|
return 0;
|
|
|
|
if (vc->norm < ARRAY_SIZE(map))
|
|
t->std = map[vc->norm];
|
|
tuner_fixup_std(t);
|
|
if (t->tv_freq)
|
|
set_tv_freq(client, t->tv_freq);
|
|
return 0;
|
|
}
|
|
case VIDIOCSFREQ:
|
|
{
|
|
unsigned long *v = arg;
|
|
|
|
if (check_mode(t, "VIDIOCSFREQ") == EINVAL)
|
|
return 0;
|
|
if (check_v4l2(t) == EINVAL)
|
|
return 0;
|
|
|
|
set_freq(client, *v);
|
|
return 0;
|
|
}
|
|
case VIDIOCGTUNER:
|
|
{
|
|
struct video_tuner *vt = arg;
|
|
|
|
if (check_mode(t, "VIDIOCGTUNER") == EINVAL)
|
|
return 0;
|
|
if (check_v4l2(t) == EINVAL)
|
|
return 0;
|
|
|
|
if (V4L2_TUNER_RADIO == t->mode) {
|
|
if (t->ops.has_signal)
|
|
vt->signal = t->ops.has_signal(client);
|
|
if (t->ops.is_stereo) {
|
|
if (t->ops.is_stereo(client))
|
|
vt->flags |=
|
|
VIDEO_TUNER_STEREO_ON;
|
|
else
|
|
vt->flags &=
|
|
~VIDEO_TUNER_STEREO_ON;
|
|
}
|
|
vt->flags |= VIDEO_TUNER_LOW; /* Allow freqs at 62.5 Hz */
|
|
|
|
vt->rangelow = radio_range[0] * 16000;
|
|
vt->rangehigh = radio_range[1] * 16000;
|
|
|
|
} else {
|
|
vt->rangelow = tv_range[0] * 16;
|
|
vt->rangehigh = tv_range[1] * 16;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
case VIDIOCGAUDIO:
|
|
{
|
|
struct video_audio *va = arg;
|
|
|
|
if (check_mode(t, "VIDIOCGAUDIO") == EINVAL)
|
|
return 0;
|
|
if (check_v4l2(t) == EINVAL)
|
|
return 0;
|
|
|
|
if (V4L2_TUNER_RADIO == t->mode && t->ops.is_stereo)
|
|
va->mode = t->ops.is_stereo(client)
|
|
? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO;
|
|
return 0;
|
|
}
|
|
#endif
|
|
case TDA9887_SET_CONFIG:
|
|
if (t->type == TUNER_TDA9887) {
|
|
int *i = arg;
|
|
|
|
t->tda9887_config = *i;
|
|
set_freq(client, t->tv_freq);
|
|
}
|
|
break;
|
|
/* --- v4l ioctls --- */
|
|
/* take care: bttv does userspace copying, we'll get a
|
|
kernel pointer here... */
|
|
case VIDIOC_S_STD:
|
|
{
|
|
v4l2_std_id *id = arg;
|
|
|
|
if (set_mode (client, t, V4L2_TUNER_ANALOG_TV, "VIDIOC_S_STD")
|
|
== EINVAL)
|
|
return 0;
|
|
|
|
switch_v4l2();
|
|
|
|
t->std = *id;
|
|
tuner_fixup_std(t);
|
|
if (t->tv_freq)
|
|
set_freq(client, t->tv_freq);
|
|
break;
|
|
}
|
|
case VIDIOC_S_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *f = arg;
|
|
|
|
if (set_mode (client, t, f->type, "VIDIOC_S_FREQUENCY")
|
|
== EINVAL)
|
|
return 0;
|
|
switch_v4l2();
|
|
set_freq(client,f->frequency);
|
|
|
|
break;
|
|
}
|
|
case VIDIOC_G_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *f = arg;
|
|
|
|
if (check_mode(t, "VIDIOC_G_FREQUENCY") == EINVAL)
|
|
return 0;
|
|
switch_v4l2();
|
|
f->type = t->mode;
|
|
f->frequency = (V4L2_TUNER_RADIO == t->mode) ?
|
|
t->radio_freq : t->tv_freq;
|
|
break;
|
|
}
|
|
case VIDIOC_G_TUNER:
|
|
{
|
|
struct v4l2_tuner *tuner = arg;
|
|
|
|
if (check_mode(t, "VIDIOC_G_TUNER") == EINVAL)
|
|
return 0;
|
|
switch_v4l2();
|
|
|
|
tuner->type = t->mode;
|
|
if (t->ops.get_afc)
|
|
tuner->afc=t->ops.get_afc(client);
|
|
if (t->mode == V4L2_TUNER_ANALOG_TV)
|
|
tuner->capability |= V4L2_TUNER_CAP_NORM;
|
|
if (t->mode != V4L2_TUNER_RADIO) {
|
|
tuner->rangelow = tv_range[0] * 16;
|
|
tuner->rangehigh = tv_range[1] * 16;
|
|
break;
|
|
}
|
|
|
|
/* radio mode */
|
|
if (t->ops.has_signal)
|
|
tuner->signal = t->ops.has_signal(client);
|
|
|
|
tuner->rxsubchans =
|
|
V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
|
|
if (t->ops.is_stereo) {
|
|
tuner->rxsubchans = t->ops.is_stereo(client) ?
|
|
V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
|
|
}
|
|
|
|
tuner->capability |=
|
|
V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
|
|
tuner->audmode = t->audmode;
|
|
tuner->rangelow = radio_range[0] * 16000;
|
|
tuner->rangehigh = radio_range[1] * 16000;
|
|
break;
|
|
}
|
|
case VIDIOC_S_TUNER:
|
|
{
|
|
struct v4l2_tuner *tuner = arg;
|
|
|
|
if (check_mode(t, "VIDIOC_S_TUNER") == EINVAL)
|
|
return 0;
|
|
|
|
switch_v4l2();
|
|
|
|
/* do nothing unless we're a radio tuner */
|
|
if (t->mode != V4L2_TUNER_RADIO)
|
|
break;
|
|
t->audmode = tuner->audmode;
|
|
set_radio_freq(client, t->radio_freq);
|
|
break;
|
|
}
|
|
case VIDIOC_LOG_STATUS:
|
|
if (t->ops.tuner_status)
|
|
t->ops.tuner_status(client);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_suspend(struct i2c_client *c, pm_message_t state)
|
|
{
|
|
struct tuner *t = i2c_get_clientdata (c);
|
|
|
|
tuner_dbg ("suspend\n");
|
|
/* FIXME: power down ??? */
|
|
return 0;
|
|
}
|
|
|
|
static int tuner_resume(struct i2c_client *c)
|
|
{
|
|
struct tuner *t = i2c_get_clientdata (c);
|
|
|
|
tuner_dbg ("resume\n");
|
|
if (V4L2_TUNER_RADIO == t->mode) {
|
|
if (t->radio_freq)
|
|
set_freq(c, t->radio_freq);
|
|
} else {
|
|
if (t->tv_freq)
|
|
set_freq(c, t->tv_freq);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static struct i2c_driver driver = {
|
|
.id = I2C_DRIVERID_TUNER,
|
|
.attach_adapter = tuner_probe,
|
|
.detach_client = tuner_detach,
|
|
.command = tuner_command,
|
|
.suspend = tuner_suspend,
|
|
.resume = tuner_resume,
|
|
.driver = {
|
|
.name = "tuner",
|
|
},
|
|
};
|
|
static struct i2c_client client_template = {
|
|
.name = "(tuner unset)",
|
|
.driver = &driver,
|
|
};
|
|
|
|
static int __init tuner_init_module(void)
|
|
{
|
|
return i2c_add_driver(&driver);
|
|
}
|
|
|
|
static void __exit 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:
|
|
*/
|