* \brief TAS5706A Power DAC i2c driver.
*
*
- * \version $Id$
* \author Francesco Sacchi <batt@develer.com>
+ * \author Daniele Basile <asterix@develer.com>
*/
#include "tas5706a.h"
-#include <cfg/module.h>
-
-#include <drv/i2c.h>
-#include <drv/timer.h>
#include "hw/hw_tas5706a.h"
-#include "cfg/cfg_tas5706a.h"
-#define TAS_ADDR 0x36
-
-typedef uint8_t tas_addr_t;
+#include "cfg/cfg_tas5706a.h"
+#include "cfg/cfg_i2c.h"
-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;
-}
+#include <cfg/module.h>
-INLINE bool tas5706a_putc(tas_addr_t addr, uint8_t ch)
-{
- return tas5706a_send(addr, &ch, sizeof(ch));
-}
+#include <drv/i2c.h>
+#include <drv/timer.h>
-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;
-}
+typedef uint8_t tas_addr_t;
-INLINE int tas5706a_getc(tas_addr_t addr)
-{
- uint8_t ch;
- if (tas5706a_recv(addr, &ch, sizeof(ch)))
- return (int)(uint8_t)ch;
- else
- return EOF;
-}
+#define TAS_ADDR 0x36
#define TRIM_REG 0x1B
#define SYS_REG2 0x05
#define DB_TO_REG(db) ((24 - (db)) * 2)
-void tas5706a_init(void)
+#define CH1_VOL_REG 0x08
+#define CH2_VOL_REG 0x09
+#define CH3_VOL_REG 0x0A
+#define CH4_VOL_REG 0x0B
+
+
+INLINE bool tas5706a_putc(I2c *i2c, tas_addr_t addr, uint8_t ch)
{
- 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_putc(TRIM_REG, 0x00);
+ i2c_start_w(i2c, TAS_ADDR, 2, I2C_STOP);
+ i2c_putc(i2c, addr);
+ i2c_putc(i2c, ch);
- tas5706a_putc(VOLUME_REG, DB_TO_REG(CONFIG_TAS_MAX_VOL));
+ if (i2c_error(i2c))
+ return false;
- /* Unmute */
- tas5706a_putc(SYS_REG2, 0);
+ return true;
}
-#define CH1_VOL_REG 0x08
-#define CH2_VOL_REG 0x09
-#define CH3_VOL_REG 0x0A
-#define CH4_VOL_REG 0x0B
+INLINE int tas5706a_getc(I2c *i2c, tas_addr_t addr)
+{
+ int ch;
+
+ i2c_start_w(i2c, TAS_ADDR, 2, I2C_NOSTOP);
+ i2c_putc(i2c, addr);
+ i2c_start_r(i2c, TAS_ADDR, 1, I2C_STOP);
+ ch = (int)(uint8_t)i2c_getc(i2c);
+
+ if (i2c_error(i2c))
+ return EOF;
+
+ return ch;
+}
-void tas5706a_setVolume(Tas5706aCh ch, tas5706a_vol_t vol)
+void tas5706a_setVolume_3(I2c *i2c, Tas5706aCh ch, tas5706a_vol_t vol)
{
ASSERT(ch < TAS_CNT);
ASSERT(vol <= TAS_VOL_MAX);
uint8_t vol_att = 0xff - ((vol * 0xff) / TAS_VOL_MAX);
- tas5706a_putc(addr1, vol_att);
- tas5706a_putc(addr2, vol_att);
+ tas5706a_putc(i2c, addr1, vol_att);
+ tas5706a_putc(i2c, addr2, vol_att);
}
-void tas5706a_setLowPower(bool val)
+void tas5706a_setLowPower_2(I2c *i2c, bool val)
{
+ ASSERT(i2c);
+
TAS5706A_SETPOWERDOWN(val);
TAS5706A_SETMUTE(val);
}
+
+void tas5706a_init_1(I2c *i2c)
+{
+ ASSERT(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_putc(i2c, TRIM_REG, 0x00);
+
+ tas5706a_putc(i2c, VOLUME_REG, DB_TO_REG(CONFIG_TAS_MAX_VOL));
+
+ /* Unmute */
+ tas5706a_putc(i2c, SYS_REG2, 0);
+}