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FS#12370: Initial RDS support for Si4701/Si4703 tuner (beast and clip zip)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31346 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken
parent
17ed3253fc
commit
8c19dcd598
13 changed files with 525 additions and 37 deletions
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@ -29,21 +29,15 @@
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#include "tuner.h" /* tuner abstraction interface */
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#include "fmradio.h"
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#include "fmradio_i2c.h" /* physical interface driver */
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#include "rds.h"
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/* some models use the internal 32 kHz oscillator which needs special attention
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during initialisation, power-up and power-down.
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*/
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#if defined(SANSA_CLIP) || defined(SANSA_E200V2) || defined(SANSA_FUZE) || defined(SANSA_C200V2)
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#define USE_INTERNAL_OSCILLATOR
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/* some models use the internal 32 kHz oscillator which needs special attention
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during initialisation, power-up and power-down. */
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#define SI4700_USE_INTERNAL_OSCILLATOR
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#elif defined(TOSHIBA_GIGABEAT_S)
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#define SI4700_GPIO_SETUP (SYSCONFIG1_GPIO1_HI_Z | \
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SYSCONFIG1_GPIO2_HI_Z | \
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SYSCONFIG1_GPIO3_MO_ST_I)
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extern int si4700_st(void);
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#endif
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#ifndef SI4700_GPIO_SETUP
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#define SI4700_GPIO_SETUP 0
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/* gigabeat S uses the GPIO for stereo/mono detection */
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#define SI4700_USE_MO_ST_I
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#endif
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#define SEEK_THRESHOLD 0x16
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@ -81,7 +75,8 @@ extern int si4700_st(void);
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/* CHIPID (0x1) */
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#if 0 /* Informational */
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#if 0
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/* Informational */
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/* Si4700/01 */
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#define CHIPID_REV (0x3f << 10)
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#define CHIPID_DEV (0x1 << 9)
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@ -98,7 +93,10 @@ extern int si4700_st(void);
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/* 1000 before PU = Si4703 */
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/* 1001 after PU = Si4703 */
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#define CHIPID_FIRMWARE (0x3f << 0)
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#endif /* 0 */
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#endif
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/* Indicates Si4701/2/3 after powerup */
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#define CHIPID_DEV_0 (0x1 << 9)
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/* POWERCFG (0x2) */
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#define POWERCFG_DSMUTE (0x1 << 15)
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@ -214,6 +212,10 @@ extern int si4700_st(void);
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static bool tuner_present = false;
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static uint16_t cache[16];
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static struct mutex fmr_mutex SHAREDBSS_ATTR;
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#ifdef HAVE_RDS_CAP
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static int rds_event = 0;
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#endif
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/* reads <len> registers from radio at offset 0x0A into cache */
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static void si4700_read(int len)
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@ -277,19 +279,26 @@ static void si4700_write_clear(int reg, uint16_t mask)
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si4700_write_reg(reg, cache[reg] & ~mask);
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}
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#if (SI4700_GPIO_SETUP & SYSCONFIG1_GPIO3) != SYSCONFIG1_GPIO3_MO_ST_I
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#ifndef SI4700_USE_MO_ST_I
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/* Poll i2c for the stereo status */
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static inline int si4700_st(void)
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bool si4700_st(void)
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{
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return (si4700_read_reg(STATUSRSSI) & STATUSRSSI_ST) >> 8;
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}
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#endif
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#endif /* ndef SI4700_USE_MO_ST_I */
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static void si4700_sleep(int snooze)
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{
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if (snooze)
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{
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/** power down **/
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#ifdef HAVE_RDS_CAP
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if (cache[CHIPID] & CHIPID_DEV_0) {
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si4700_rds_powerup(false);
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si4700_write_clear(SYSCONFIG1, SYSCONFIG1_RDS | SYSCONFIG1_RDSIEN);
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}
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#endif
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/* ENABLE high, DISABLE high */
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si4700_write_set(POWERCFG,
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POWERCFG_DISABLE | POWERCFG_ENABLE);
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@ -307,9 +316,8 @@ static void si4700_sleep(int snooze)
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/* init register cache */
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si4700_read(16);
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#if SI4700_GPIO_SETUP != 0
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si4700_write_masked(SYSCONFIG1, SI4700_GPIO_SETUP,
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SYSCONFIG1_GPIO1 | SYSCONFIG1_GPIO2 |
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#ifdef SI4700_USE_MO_ST_I
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si4700_write_masked(SYSCONFIG1, SYSCONFIG1_GPIO3_MO_ST_I,
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SYSCONFIG1_GPIO3);
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#endif
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/* set mono->stereo switching RSSI range to lowest setting */
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@ -320,33 +328,43 @@ static void si4700_sleep(int snooze)
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SYSCONFIG2_SKEETHw(SEEK_THRESHOLD) |
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SYSCONFIG2_VOLUMEw(0xF),
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SYSCONFIG2_VOLUME | SYSCONFIG2_SEEKTH);
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#ifdef HAVE_RDS_CAP
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/* enable RDS and RDS interrupt if supported (bit 9 of CHIPID) */
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if (cache[CHIPID] & CHIPID_DEV_0) {
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/* Is Si4701/2/3 - Enable RDS and interrupt */
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si4700_write_set(SYSCONFIG1, SYSCONFIG1_RDS | SYSCONFIG1_RDSIEN);
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si4700_write_masked(SYSCONFIG1, SYSCONFIG1_GPIO2_STC_RDS_I,
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SYSCONFIG1_GPIO2);
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si4700_rds_powerup(true);
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}
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#endif
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}
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}
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bool si4700_detect(void)
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{
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bool detected;
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tuner_power(true);
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detected = (si4700_read_reg(DEVICEID) == 0x1242);
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tuner_power(false);
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return detected;
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if (!tuner_present) {
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tuner_power(true);
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tuner_present = (si4700_read_reg(DEVICEID) == 0x1242);
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tuner_power(false);
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}
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return tuner_present;
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}
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void si4700_init(void)
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{
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/* check device id */
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if (si4700_detect()) {
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tuner_present = true;
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mutex_init(&fmr_mutex);
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tuner_power(true);
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/* read all registers */
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si4700_read(16);
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si4700_sleep(0);
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#ifdef USE_INTERNAL_OSCILLATOR
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#ifdef SI4700_USE_INTERNAL_OSCILLATOR
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/* Enable the internal oscillator
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(Si4702-16 needs this register to be initialised to 0x100) */
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si4700_write_set(TEST1, TEST1_XOSCEN | 0x100);
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@ -355,6 +373,10 @@ void si4700_init(void)
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si4700_sleep(1);
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tuner_power(false);
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#ifdef HAVE_RDS_CAP
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si4700_rds_init();
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#endif
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}
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}
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@ -421,6 +443,10 @@ static void si4700_set_region(int region)
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/* tuner abstraction layer: set something to the tuner */
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int si4700_set(int setting, int value)
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{
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int val = 1;
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mutex_lock(&fmr_mutex);
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switch(setting)
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{
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case RADIO_SLEEP:
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@ -430,12 +456,19 @@ int si4700_set(int setting, int value)
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break;
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case RADIO_FREQUENCY:
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#ifdef HAVE_RDS_CAP
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rds_reset();
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#endif
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si4700_set_frequency(value);
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break;
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case RADIO_SCAN_FREQUENCY:
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#ifdef HAVE_RDS_CAP
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rds_reset();
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#endif
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si4700_set_frequency(value);
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return si4700_tuned();
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val = si4700_tuned();
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break;
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case RADIO_MUTE:
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si4700_write_masked(POWERCFG, value ? 0 : POWERCFG_DMUTE,
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@ -452,10 +485,13 @@ int si4700_set(int setting, int value)
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break;
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default:
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return -1;
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val = -1;
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break;
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}
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return 1;
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mutex_unlock(&fmr_mutex);
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return val;
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}
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/* tuner abstraction layer: read something from the tuner */
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@ -463,6 +499,8 @@ int si4700_get(int setting)
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{
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int val = -1; /* default for unsupported query */
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mutex_lock(&fmr_mutex);
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switch(setting)
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{
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case RADIO_PRESENT:
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@ -488,8 +526,17 @@ int si4700_get(int setting)
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case RADIO_RSSI_MAX:
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val = RSSI_MAX;
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break;
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#ifdef HAVE_RDS_CAP
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case RADIO_EVENT:
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val = rds_event;
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rds_event = 0;
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break;
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#endif
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}
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mutex_unlock(&fmr_mutex);
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return val;
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}
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@ -497,10 +544,61 @@ void si4700_dbg_info(struct si4700_dbg_info *nfo)
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{
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memset(nfo->regs, 0, sizeof (nfo->regs));
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mutex_lock(&fmr_mutex);
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if (tuner_powered())
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{
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si4700_read(16);
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memcpy(nfo->regs, cache, sizeof (nfo->regs));
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}
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mutex_unlock(&fmr_mutex);
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}
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#ifdef HAVE_RDS_CAP
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/* Read raw RDS info for processing */
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bool si4700_rds_read_raw(uint16_t data[4])
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{
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bool retval = false;
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mutex_lock(&fmr_mutex);
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if (tuner_powered())
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{
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si4700_read_reg(RDSD);
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memcpy(data, &cache[RDSA], 4 * sizeof (uint16_t));
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retval = true;
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}
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mutex_unlock(&fmr_mutex);
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return retval;
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}
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/* Set the event flag */
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void si4700_rds_set_event(void)
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{
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mutex_lock(&fmr_mutex);
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rds_event = 1;
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mutex_unlock(&fmr_mutex);
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}
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char * si4700_get_rds_info(int setting)
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{
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char *text = NULL;
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switch(setting)
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{
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case RADIO_RDS_NAME:
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text = rds_get_ps();
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break;
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case RADIO_RDS_TEXT:
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text = rds_get_rt();
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break;
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}
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return text;
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}
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#endif /* HAVE_RDS_CAP */
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