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FS#12094 - RDA5802 tuner: clean up register 0x4 handling, drop implicitly enabled soft-mute by Stephan Grossklass and me 

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29959 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken 2011-06-04 20:18:10 +00:00
parent 92afc96cc8
commit 1c22bbb1c2
1 changed files with 23 additions and 19 deletions
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42
firmware/drivers/tuner/rda5802.c
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@ -44,7 +44,9 @@
#define SYSCONFIG1 0x4
#define SYSCONFIG2 0x5
#define SYSCONFIG3 0x6
#define SYSCONFIG4 0x7 /* undocumented */
#define SYSCONFIG5 0x8 /* undocumented */
#define SYSCONFIG6 0x9 /* undocumented */
#define READCHAN 0xA
#define STATUSRSSI 0xB
#define IDENT 0xC
@ -76,7 +78,7 @@
/* SYSCONFIG1 (0x4) */
#define SYSCONFIG1_DE (0x1 << 11)
#define SYSCONFIG1_SMUTE (0x1 << 9)
#define SYSCONFIG1_SOFTMUTE_EN (0x1 << 9)
/* SYSCONFIG2 (0x5) */
#define SYSCONFIG2_VOLUME (0xF << 0)
@ -92,21 +94,25 @@
#define STATUSRSSI_RSSIr(x) (((x) & STATUSRSSI_RSSI) >> 9)
#define STATUSRSSI_FM_TRUE (0x1 << 8)
static const uint16_t initvals[16] = {
0x0000, 0x0000, 0xC401, 0x1B80,
0x0400, 0x866F, 0x8000, 0x4712,
0x5EC6, 0x0000, 0x406E, 0x2D80,
0x5803, 0x5804, 0x5804, 0x5804
};
static bool tuner_present = false;
static uint16_t cache[16];
static uint16_t cache[16] = {
[POWERCFG] = 0xC401, /* DHIZ, DMUTE, CLK_DIRECT_MODE, ENABLE */
[CHANNEL] = 0x0000, /* - */
[SYSCONFIG1] = 0x0200, /* SYSCONFIG1_SOFTMUTE_EN */
[SYSCONFIG2] = 0x867F, /* INT_MODE (def), SEEKTH=1100b, LNA_PORT_SEL=LNAN,
LNA_ICSEL=3.0mA, VOLUME=max */
[SYSCONFIG3] = 0x8000, /* I2S slave mode */
[SYSCONFIG4] = 0x4712, /* undocumented, affects stereo blend */
[SYSCONFIG5] = 0x5EC6, /* undocumented */
[SYSCONFIG6] = 0x0000 /* undocumented */
};
/* reads <len> registers from radio at offset 0x0A into cache */
static void rda5802_read(int len)
{
int i;
unsigned char buf[128];
unsigned char buf[sizeof(cache)];
unsigned char *ptr = buf;
uint16_t data;
@ -122,7 +128,7 @@ static void rda5802_read(int len)
static void rda5802_write(int len)
{
int i;
unsigned char buf[64];
unsigned char buf[sizeof(cache)];
unsigned char *ptr = buf;
uint16_t data;
@ -186,14 +192,14 @@ void rda5802_init(void)
if (rda5802_detect()) {
tuner_present = true;
// soft-reset
rda5802_write_reg(POWERCFG, POWERCFG_SOFT_RESET);
/* soft-reset */
rda5802_write_set(POWERCFG, POWERCFG_SOFT_RESET);
rda5802_write(1);
rda5802_write_clear(POWERCFG, POWERCFG_SOFT_RESET);
sleep(HZ * 10 / 1000);
// write initialisation values
memcpy(cache, initvals, sizeof(cache));
rda5802_write(14);
/* write initialisation values */
rda5802_write(8);
sleep(HZ * 70 / 1000);
}
}
@ -284,8 +290,6 @@ int rda5802_set(int setting, int value)
case RADIO_MUTE:
rda5802_write_masked(POWERCFG, value ? 0 : POWERCFG_DMUTE,
POWERCFG_DMUTE);
rda5802_write_masked(SYSCONFIG1, (3 << 9), (3 << 9));
rda5802_write_set(SYSCONFIG2, SYSCONFIG2_VOLUME);
rda5802_write_cache();
break;