*
*
* \author Francesco Sacchi <batt@develer.com>
+ * \author Daniele Basile <asterix@develer.com>
*/
#include "tas5706a.h"
#include "hw/hw_tas5706a.h"
#include "cfg/cfg_tas5706a.h"
+#include "cfg/cfg_i2c.h"
#include <cfg/module.h>
#define CH3_VOL_REG 0x0A
#define CH4_VOL_REG 0x0B
-static bool tas5706a_send(tas_addr_t addr, const void *buf, size_t len)
-{
- bool ret = i2c_start_w(TAS_ADDR) && i2c_put(addr) && i2c_send(buf, len);
- i2c_stop();
- return ret;
-}
-
-INLINE bool tas5706a_put(tas_addr_t addr, uint8_t ch)
-{
- return tas5706a_send(addr, &ch, sizeof(ch));
-}
-static bool tas5706a_recv(tas_addr_t addr, void *buf, size_t len)
-{
- bool ret = i2c_start_w(TAS_ADDR) && i2c_put(addr) && i2c_start_r(TAS_ADDR) && i2c_recv(buf, len);
- i2c_stop();
- return ret;
-}
-
-INLINE int tas5706a_get(tas_addr_t addr)
-{
- uint8_t ch;
- if (tas5706a_recv(addr, &ch, sizeof(ch)))
- return (int)(uint8_t)ch;
- else
- return EOF;
-}
-
-void tas5706a_init_0(void)
-{
- MOD_CHECK(i2c);
- MOD_CHECK(timer);
- TAS5706A_PIN_INIT();
- timer_delay(200);
- TAS5706A_SETPOWERDOWN(false);
- TAS5706A_SETMUTE(false);
- TAS5706A_MCLK_INIT();
- timer_delay(2);
- TAS5706A_SETRESET(false);
- timer_delay(20);
- tas5706a_put(TRIM_REG, 0x00);
-
- tas5706a_put(VOLUME_REG, DB_TO_REG(CONFIG_TAS_MAX_VOL));
-
- /* Unmute */
- tas5706a_put(SYS_REG2, 0);
-}
-
-void tas5706a_setVolume_2(Tas5706aCh ch, tas5706a_vol_t vol)
+INLINE bool tas5706a_putc(I2c *i2c, tas_addr_t addr, uint8_t ch)
{
- ASSERT(ch < TAS_CNT);
- ASSERT(vol <= TAS_VOL_MAX);
-
- tas_addr_t addr1, addr2;
-
- switch(ch)
- {
- case TAS_CH1:
- addr1 = CH1_VOL_REG;
- addr2 = CH3_VOL_REG;
- break;
- case TAS_CH2:
- addr1 = CH2_VOL_REG;
- addr2 = CH4_VOL_REG;
- break;
- default:
- ASSERT(0);
- return;
- }
+ i2c_start_w(i2c, TAS_ADDR, 2, I2C_STOP);
+ i2c_putc(i2c, addr);
+ i2c_putc(i2c, ch);
- uint8_t vol_att = 0xff - ((vol * 0xff) / TAS_VOL_MAX);
+ if (i2c_error(i2c))
+ return false;
- tas5706a_put(addr1, vol_att);
- tas5706a_put(addr2, vol_att);
+ return true;
}
-void tas5706a_setLowPower_1(bool val)
+INLINE int tas5706a_getc(I2c *i2c, tas_addr_t addr)
{
- TAS5706A_SETPOWERDOWN(val);
- TAS5706A_SETMUTE(val);
-}
-
-/*
- * New API
- */
+ int ch;
-INLINE bool tas5706a_putc(I2c *i2c, tas_addr_t addr, uint8_t ch)
-{
- i2c_start_w(i2c, TAS_ADDR, 2, I2C_STOP);
+ i2c_start_w(i2c, TAS_ADDR, 2, I2C_NOSTOP);
i2c_putc(i2c, addr);
- i2c_putc(i2c, ch);
+ i2c_start_r(i2c, TAS_ADDR, 1, I2C_STOP);
+ ch = (int)(uint8_t)i2c_getc(i2c);
if (i2c_error(i2c))
- return false;
+ return EOF;
- return true;
+ return ch;
}
void tas5706a_setVolume_3(I2c *i2c, Tas5706aCh ch, tas5706a_vol_t vol)