static void cpcap_audio_configure_codec(struct cpcap_audio_state *state,
struct cpcap_audio_state *prev)
{
unsigned int temp_codec_rate = state->codec_rate;
struct cpcap_regacc cdai_changes = { 0 };
struct cpcap_regacc codec_changes = { 0 };
int codec_freq_config = 0;
const unsigned int CODEC_FREQ_MASK = CPCAP_BIT_CDC_CLK0
| CPCAP_BIT_CDC_CLK1 | CPCAP_BIT_CDC_CLK2;
const unsigned int CODEC_RESET_FREQ_MASK = CODEC_FREQ_MASK
| CPCAP_BIT_CDC_CLOCK_TREE_RESET;
static unsigned int prev_codec_data = 0x0, prev_cdai_data = 0x0;
if (!is_codec_changed(state, prev))
return;
if (state->rat_type == CPCAP_AUDIO_RAT_CDMA)
codec_freq_config = (CPCAP_BIT_CDC_CLK0
| CPCAP_BIT_CDC_CLK1) ; /* 19.2Mhz */
else
codec_freq_config = CPCAP_BIT_CDC_CLK2 ; /* 26Mhz */
/* If a codec is already in use, reset codec to initial state */
if (prev->codec_mode != CPCAP_AUDIO_CODEC_OFF) {
codec_changes.mask = prev_codec_data
| CPCAP_BIT_DF_RESET
| CPCAP_BIT_CDC_CLOCK_TREE_RESET;
logged_cpcap_write(state->cpcap, CPCAP_REG_CC,
codec_changes.value, codec_changes.mask);
prev_codec_data = 0;
prev->codec_mode = CPCAP_AUDIO_CODEC_OFF;
}
temp_codec_rate &= 0x0000000F;
temp_codec_rate = temp_codec_rate << 9;
switch (state->codec_mode) {
case CPCAP_AUDIO_CODEC_LOOPBACK:
case CPCAP_AUDIO_CODEC_ON:
if (state->codec_primary_speaker !=
CPCAP_AUDIO_OUT_NONE) {
codec_changes.value |= CPCAP_BIT_CDC_EN_RX;
}
/* Turning on the input HPF */
if (state->microphone != CPCAP_AUDIO_IN_NONE)
codec_changes.value |= CPCAP_BIT_AUDIHPF_0 |
CPCAP_BIT_AUDIHPF_1;
#if 1
if (state->microphone != CPCAP_AUDIO_IN_NONE) {
codec_changes.value |= CPCAP_BIT_MIC1_CDC_EN;
codec_changes.value |= CPCAP_BIT_MIC2_CDC_EN;
}
#else
if (state->microphone != CPCAP_AUDIO_IN_AUX_INTERNAL &&
state->microphone != CPCAP_AUDIO_IN_NONE)
codec_changes.value |= CPCAP_BIT_MIC1_CDC_EN |
CPCAP_BIT_MIC2_CDC_EN;
if (state->microphone == CPCAP_AUDIO_IN_AUX_INTERNAL ||
is_mic_stereo(state->microphone))
codec_changes.value |= CPCAP_BIT_MIC2_CDC_EN;
#endif
/* falling through intentionally */
case CPCAP_AUDIO_CODEC_CLOCK_ONLY:
codec_changes.value |=
(codec_freq_config | temp_codec_rate |
CPCAP_BIT_DF_RESET);
cdai_changes.value |= CPCAP_BIT_CDC_CLK_EN;
break;
case CPCAP_AUDIO_CODEC_OFF:
cdai_changes.value |= CPCAP_BIT_SMB_CDC;
break;
default:
break;
}
/* Multimedia uses CLK_IN0, incall uses CLK_IN1 */
if (state->rat_type != CPCAP_AUDIO_RAT_NONE)
cdai_changes.value |= CPCAP_BIT_CLK_IN_SEL;
cdai_changes.value |= CPCAP_BIT_CDC_PLL_SEL;
#if 0
cdai_changes.value |= CPCAP_BIT_DIG_AUD_IN;
#endif
#ifdef CODEC_IS_I2S_MODE
cdai_changes.value |= CPCAP_BIT_CLK_INV;
/* Setting I2S mode */
cdai_changes.value |= CPCAP_BIT_CDC_DIG_AUD_FS0 |
CPCAP_BIT_CDC_DIG_AUD_FS1 |
CPCAP_BIT_MIC2_TIMESLOT0;
#else
/* Setting CODEC mode */
/* FS: Not inverted.
* Clk: Not inverted.
* TS2/TS1/TS0 not set, using timeslot 0 for mic1.
*/
cdai_changes.value |= CPCAP_BIT_CDC_DIG_AUD_FS0;
#endif
/* OK, now start paranoid codec sequence */
/* FIRST, make sure the frequency config is right... */
logged_cpcap_write(state->cpcap, CPCAP_REG_CC,
codec_freq_config, CODEC_FREQ_MASK);
/* Next, write the CDAI if it's changed */
if (prev_cdai_data != cdai_changes.value) {
cdai_changes.mask = cdai_changes.value
| prev_cdai_data;
prev_cdai_data = cdai_changes.value;
logged_cpcap_write(state->cpcap, CPCAP_REG_CDI,
cdai_changes.value, cdai_changes.mask);
/* Clock tree change -- reset and wait */
codec_freq_config |= CPCAP_BIT_CDC_CLOCK_TREE_RESET;
logged_cpcap_write(state->cpcap, CPCAP_REG_CC,
codec_freq_config, CODEC_RESET_FREQ_MASK);
/* Wait for clock tree reset to complete */
mdelay(CLOCK_TREE_RESET_DELAY_MS);
}
/* Clear old settings */
codec_changes.mask = codec_changes.value | prev_codec_data;
prev_codec_data = codec_changes.value;
logged_cpcap_write(state->cpcap, CPCAP_REG_CC,
codec_changes.value, codec_changes.mask);
}
static void cpcap_audio_configure_codec(struct cpcap_audio_state *state,
struct cpcap_audio_state *previous_state) {
const unsigned int CODEC_FREQ_MASK = CPCAP_BIT_CDC_CLK0
| CPCAP_BIT_CDC_CLK1 | CPCAP_BIT_CDC_CLK2;
const unsigned int CODEC_RESET_FREQ_MASK = CODEC_FREQ_MASK
| CPCAP_BIT_CDC_CLOCK_TREE_RESET;
static unsigned int prev_codec_data = 0x0, prev_cdai_data = 0x0;
if (is_codec_changed(state, previous_state)) {
unsigned int temp_codec_rate = state->codec_rate;
struct cpcap_regacc cdai_changes = { 0 };
struct cpcap_regacc codec_changes = { 0 };
int codec_freq_config = 0;
if (state->rat_type == CPCAP_AUDIO_RAT_CDMA)
codec_freq_config = (CPCAP_BIT_CDC_CLK0
| CPCAP_BIT_CDC_CLK1) ; /* 19.2Mhz */
else
codec_freq_config = CPCAP_BIT_CDC_CLK2 ; /* 26Mhz */
/* If a codec is already in use, reset codec to initial state */
/* TODO: optimize - make less paranoid according to TI recs */
if (previous_state->codec_mode != CPCAP_AUDIO_CODEC_OFF) {
codec_changes.mask = prev_codec_data
| CPCAP_BIT_DF_RESET
| CPCAP_BIT_CDC_CLOCK_TREE_RESET;
logged_cpcap_write(state->cpcap, CPCAP_REG_CC,
codec_changes.value, codec_changes.mask);
prev_codec_data = 0;
previous_state->codec_mode = CPCAP_AUDIO_CODEC_OFF;
}
temp_codec_rate &= 0x0000000F;
temp_codec_rate = temp_codec_rate << 9;
switch (state->codec_mode) {
case CPCAP_AUDIO_CODEC_LOOPBACK:
case CPCAP_AUDIO_CODEC_ON:
if (state->codec_primary_speaker !=
CPCAP_AUDIO_OUT_NONE)
codec_changes.value |= CPCAP_BIT_CDC_EN_RX;
/* Turning on the input HPF */
if (state->microphone != CPCAP_AUDIO_IN_NONE)
codec_changes.value |= CPCAP_BIT_AUDIHPF_0 |
CPCAP_BIT_AUDIHPF_1;
if (state->microphone != CPCAP_AUDIO_IN_AUX_INTERNAL &&
state->microphone != CPCAP_AUDIO_IN_NONE)
codec_changes.value |= CPCAP_BIT_MIC1_CDC_EN;
if (state->microphone == CPCAP_AUDIO_IN_AUX_INTERNAL ||
is_mic_stereo(state->microphone))
codec_changes.value |= CPCAP_BIT_MIC2_CDC_EN;
/* falling through intentionally */
case CPCAP_AUDIO_CODEC_CLOCK_ONLY:
codec_changes.value |=
(codec_freq_config | temp_codec_rate |
CPCAP_BIT_DF_RESET);
cdai_changes.value |= CPCAP_BIT_CDC_CLK_EN;
break;
case CPCAP_AUDIO_CODEC_OFF:
cdai_changes.value |= CPCAP_BIT_SMB_CDC;
break;
default:
break;
}
/* Multimedia uses CLK_IN0, incall uses CLK_IN1 */
if (state->rat_type != CPCAP_AUDIO_RAT_NONE)
cdai_changes.value |= CPCAP_BIT_CLK_IN_SEL;
/* UMTS sholes uses Network mode - 4 time slots
-Codec is Master of Fsync Bclk
-CODEC uses DAI0
-CODEC PLL to be used */
cdai_changes.value |= (CPCAP_BIT_CDC_DIG_AUD_FS0 |
CPCAP_BIT_CDC_PLL_SEL);
if ((state->rat_type == CPCAP_AUDIO_RAT_NONE) &&
(state->microphone == CPCAP_AUDIO_IN_AUX_INTERNAL))
cdai_changes.value |= CPCAP_BIT_MIC1_RX_TIMESLOT0;
else
cdai_changes.value |= CPCAP_BIT_MIC2_TIMESLOT0;
/* OK, now start paranoid codec sequence */
/* TODO: optimize - make less paranoid */
/* FIRST, make sure the frequency config is right... */
logged_cpcap_write(state->cpcap, CPCAP_REG_CC,
codec_freq_config, CODEC_FREQ_MASK);
/* Next, write the CDAI if it's changed */
if (prev_cdai_data != cdai_changes.value) {
cdai_changes.mask = cdai_changes.value
| prev_cdai_data;
prev_cdai_data = cdai_changes.value;
logged_cpcap_write(state->cpcap,
CPCAP_REG_CDI, cdai_changes.value,
cdai_changes.mask);
/* Clock tree change -- reset and wait */
codec_freq_config |= CPCAP_BIT_CDC_CLOCK_TREE_RESET;
logged_cpcap_write(state->cpcap,
CPCAP_REG_CC,
codec_freq_config,
CODEC_RESET_FREQ_MASK);
/* Wait for clock tree reset to complete */
mdelay(CLOCK_TREE_RESET_TIME);
}
/* Clear old settings */
codec_changes.mask = codec_changes.value | prev_codec_data;
prev_codec_data = codec_changes.value;
logged_cpcap_write(state->cpcap, CPCAP_REG_CC,
codec_changes.value, codec_changes.mask);
}
}
