*
* TODO:
* - TDM mode configuration.
- * - Mic detect.
* - Digital microphone support.
- * - Interrupt support (mic detect and sequencer).
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
+#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#include <sound/core.h>
+#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
+#include <sound/wm8903.h>
#include "wm8903.h"
int sysclk;
/* Reference counts */
- int charge_pump_users;
int class_w_users;
int playback_active;
int capture_active;
+ struct completion wseq;
+
+ struct snd_soc_jack *mic_jack;
+ int mic_det;
+ int mic_short;
+ int mic_last_report;
+ int mic_delay;
+
struct snd_pcm_substream *master_substream;
struct snd_pcm_substream *slave_substream;
};
-
-static unsigned int wm8903_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
-
- BUG_ON(reg >= ARRAY_SIZE(wm8903_reg_defaults));
-
- return cache[reg];
-}
-
-static unsigned int wm8903_hw_read(struct snd_soc_codec *codec, u8 reg)
-{
- struct i2c_msg xfer[2];
- u16 data;
- int ret;
- struct i2c_client *client = codec->control_data;
-
- /* Write register */
- xfer[0].addr = client->addr;
- xfer[0].flags = 0;
- xfer[0].len = 1;
- xfer[0].buf = ®
-
- /* Read data */
- xfer[1].addr = client->addr;
- xfer[1].flags = I2C_M_RD;
- xfer[1].len = 2;
- xfer[1].buf = (u8 *)&data;
-
- ret = i2c_transfer(client->adapter, xfer, 2);
- if (ret != 2) {
- pr_err("i2c_transfer returned %d\n", ret);
- return 0;
- }
-
- return (data >> 8) | ((data & 0xff) << 8);
-}
-
-static unsigned int wm8903_read(struct snd_soc_codec *codec,
- unsigned int reg)
+static int wm8903_volatile_register(unsigned int reg)
{
switch (reg) {
case WM8903_SW_RESET_AND_ID:
case WM8903_REVISION_NUMBER:
case WM8903_INTERRUPT_STATUS_1:
case WM8903_WRITE_SEQUENCER_4:
- return wm8903_hw_read(codec, reg);
+ return 1;
default:
- return wm8903_read_reg_cache(codec, reg);
- }
-}
-
-static void wm8903_write_reg_cache(struct snd_soc_codec *codec,
- u16 reg, unsigned int value)
-{
- u16 *cache = codec->reg_cache;
-
- BUG_ON(reg >= ARRAY_SIZE(wm8903_reg_defaults));
-
- switch (reg) {
- case WM8903_SW_RESET_AND_ID:
- case WM8903_REVISION_NUMBER:
- break;
-
- default:
- cache[reg] = value;
- break;
- }
-}
-
-static int wm8903_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[3];
-
- wm8903_write_reg_cache(codec, reg, value);
-
- /* Data format is 1 byte of address followed by 2 bytes of data */
- data[0] = reg;
- data[1] = (value >> 8) & 0xff;
- data[2] = value & 0xff;
-
- if (codec->hw_write(codec->control_data, data, 3) == 2)
return 0;
- else
- return -EIO;
+ }
}
static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start)
{
u16 reg[5];
struct i2c_client *i2c = codec->control_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
BUG_ON(start > 48);
- /* Enable the sequencer */
- reg[0] = wm8903_read(codec, WM8903_WRITE_SEQUENCER_0);
- reg[0] |= WM8903_WSEQ_ENA;
- wm8903_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
+ /* Enable the sequencer if it's not already on */
+ reg[0] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_0);
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0,
+ reg[0] | WM8903_WSEQ_ENA);
dev_dbg(&i2c->dev, "Starting sequence at %d\n", start);
- wm8903_write(codec, WM8903_WRITE_SEQUENCER_3,
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_3,
start | WM8903_WSEQ_START);
/* Wait for it to complete. If we have the interrupt wired up then
- * we could block waiting for an interrupt, though polling may still
- * be desirable for diagnostic purposes.
+ * that will break us out of the poll early.
*/
do {
- msleep(10);
+ wait_for_completion_timeout(&wm8903->wseq,
+ msecs_to_jiffies(10));
- reg[4] = wm8903_read(codec, WM8903_WRITE_SEQUENCER_4);
+ reg[4] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_4);
} while (reg[4] & WM8903_WSEQ_BUSY);
dev_dbg(&i2c->dev, "Sequence complete\n");
- /* Disable the sequencer again */
- wm8903_write(codec, WM8903_WRITE_SEQUENCER_0,
- reg[0] & ~WM8903_WSEQ_ENA);
+ /* Disable the sequencer again if we enabled it */
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
return 0;
}
/* There really ought to be something better we can do here :/ */
for (i = 0; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
- cache[i] = wm8903_hw_read(codec, i);
+ cache[i] = codec->hw_read(codec, i);
}
static void wm8903_reset(struct snd_soc_codec *codec)
{
- wm8903_write(codec, WM8903_SW_RESET_AND_ID, 0);
+ snd_soc_write(codec, WM8903_SW_RESET_AND_ID, 0);
memcpy(codec->reg_cache, wm8903_reg_defaults,
sizeof(wm8903_reg_defaults));
}
#define WM8903_OUTPUT_INT 0x2
#define WM8903_OUTPUT_IN 0x1
+static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ WARN_ON(event != SND_SOC_DAPM_POST_PMU);
+ mdelay(4);
+
+ return 0;
+}
+
/*
* Event for headphone and line out amplifier power changes. Special
* power up/down sequences are required in order to maximise pop/click
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
u16 val;
u16 reg;
+ u16 dcs_reg;
+ u16 dcs_bit;
int shift;
- u16 cp_reg = wm8903_read(codec, WM8903_CHARGE_PUMP_0);
switch (w->reg) {
case WM8903_POWER_MANAGEMENT_2:
reg = WM8903_ANALOGUE_HP_0;
+ dcs_bit = 0 + w->shift;
break;
case WM8903_POWER_MANAGEMENT_3:
reg = WM8903_ANALOGUE_LINEOUT_0;
+ dcs_bit = 2 + w->shift;
break;
default:
BUG();
}
if (event & SND_SOC_DAPM_PRE_PMU) {
- val = wm8903_read(codec, reg);
+ val = snd_soc_read(codec, reg);
/* Short the output */
val &= ~(WM8903_OUTPUT_SHORT << shift);
- wm8903_write(codec, reg, val);
-
- wm8903->charge_pump_users++;
-
- dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
- wm8903->charge_pump_users);
-
- if (wm8903->charge_pump_users == 1) {
- dev_dbg(&i2c->dev, "Enabling charge pump\n");
- wm8903_write(codec, WM8903_CHARGE_PUMP_0,
- cp_reg | WM8903_CP_ENA);
- mdelay(4);
- }
+ snd_soc_write(codec, reg, val);
}
if (event & SND_SOC_DAPM_POST_PMU) {
- val = wm8903_read(codec, reg);
+ val = snd_soc_read(codec, reg);
val |= (WM8903_OUTPUT_IN << shift);
- wm8903_write(codec, reg, val);
+ snd_soc_write(codec, reg, val);
val |= (WM8903_OUTPUT_INT << shift);
- wm8903_write(codec, reg, val);
+ snd_soc_write(codec, reg, val);
/* Turn on the output ENA_OUTP */
val |= (WM8903_OUTPUT_OUT << shift);
- wm8903_write(codec, reg, val);
+ snd_soc_write(codec, reg, val);
+
+ /* Enable the DC servo */
+ dcs_reg = snd_soc_read(codec, WM8903_DC_SERVO_0);
+ dcs_reg |= dcs_bit;
+ snd_soc_write(codec, WM8903_DC_SERVO_0, dcs_reg);
/* Remove the short */
val |= (WM8903_OUTPUT_SHORT << shift);
- wm8903_write(codec, reg, val);
+ snd_soc_write(codec, reg, val);
}
if (event & SND_SOC_DAPM_PRE_PMD) {
- val = wm8903_read(codec, reg);
+ val = snd_soc_read(codec, reg);
/* Short the output */
val &= ~(WM8903_OUTPUT_SHORT << shift);
- wm8903_write(codec, reg, val);
+ snd_soc_write(codec, reg, val);
+
+ /* Disable the DC servo */
+ dcs_reg = snd_soc_read(codec, WM8903_DC_SERVO_0);
+ dcs_reg &= ~dcs_bit;
+ snd_soc_write(codec, WM8903_DC_SERVO_0, dcs_reg);
/* Then disable the intermediate and output stages */
val &= ~((WM8903_OUTPUT_OUT | WM8903_OUTPUT_INT |
WM8903_OUTPUT_IN) << shift);
- wm8903_write(codec, reg, val);
- }
-
- if (event & SND_SOC_DAPM_POST_PMD) {
- wm8903->charge_pump_users--;
-
- dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
- wm8903->charge_pump_users);
-
- if (wm8903->charge_pump_users == 0) {
- dev_dbg(&i2c->dev, "Disabling charge pump\n");
- wm8903_write(codec, WM8903_CHARGE_PUMP_0,
- cp_reg & ~WM8903_CP_ENA);
- }
+ snd_soc_write(codec, reg, val);
}
return 0;
{
struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
struct snd_soc_codec *codec = widget->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
struct i2c_client *i2c = codec->control_data;
u16 reg;
int ret;
- reg = wm8903_read(codec, WM8903_CLASS_W_0);
+ reg = snd_soc_read(codec, WM8903_CLASS_W_0);
/* Turn it off if we're about to enable bypass */
if (ucontrol->value.integer.value[0]) {
if (wm8903->class_w_users == 0) {
dev_dbg(&i2c->dev, "Disabling Class W\n");
- wm8903_write(codec, WM8903_CLASS_W_0, reg &
+ snd_soc_write(codec, WM8903_CLASS_W_0, reg &
~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
}
wm8903->class_w_users++;
if (!ucontrol->value.integer.value[0]) {
if (wm8903->class_w_users == 1) {
dev_dbg(&i2c->dev, "Enabling Class W\n");
- wm8903_write(codec, WM8903_CLASS_W_0, reg |
+ snd_soc_write(codec, WM8903_CLASS_W_0, reg |
WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
}
wm8903->class_w_users--;
/* ALSA can only do steps of .01dB */
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
+static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
+static const char *sidetone_text[] = {
+ "None", "Left", "Right"
+};
+
+static const struct soc_enum lsidetone_enum =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 2, 3, sidetone_text);
+
+static const struct soc_enum rsidetone_enum =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 0, 3, sidetone_text);
+
static const struct snd_kcontrol_new wm8903_snd_controls[] = {
/* Input PGAs - No TLV since the scale depends on PGA mode */
SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
-SOC_SINGLE_TLV("DRC Compressor Threashold Volume", WM8903_DRC_3, 5, 124, 1,
+SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
drc_tlv_thresh),
SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
SOC_ENUM("DRC FF Delay", drc_ff_delay),
SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
-SOC_SINGLE_TLV("DRC QR Threashold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
+SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
-SOC_ENUM("DRC Smoothing Threashold", drc_smoothing),
+SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
SOC_ENUM("ADC Companding Mode", adc_companding),
SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
+SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
+ 12, 0, digital_sidetone_tlv),
+
/* DAC */
SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
SOC_ENUM("DAC Mute Mode", mute_mode),
SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
SOC_ENUM("DAC De-emphasis", dac_deemphasis),
-SOC_SINGLE("DAC Sloping Stopband Filter Switch",
- WM8903_DAC_DIGITAL_1, 11, 1, 0),
SOC_ENUM("DAC Companding Mode", dac_companding),
SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
static const struct snd_kcontrol_new rinput_inv_mux =
SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
+static const struct snd_kcontrol_new lsidetone_mux =
+ SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
+
+static const struct snd_kcontrol_new rsidetone_mux =
+ SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
+
static const struct snd_kcontrol_new left_output_mixer[] = {
SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8903_POWER_MANAGEMENT_6, 1, 0),
SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8903_POWER_MANAGEMENT_6, 0, 0),
+SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
+SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
+
SND_SOC_DAPM_DAC("DACL", "Left Playback", WM8903_POWER_MANAGEMENT_6, 3, 0),
SND_SOC_DAPM_DAC("DACR", "Right Playback", WM8903_POWER_MANAGEMENT_6, 2, 0),
SND_SOC_DAPM_PGA_E("Left Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
1, 0, NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Right Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
0, 0, NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Left Line Output PGA", WM8903_POWER_MANAGEMENT_3, 1, 0,
NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Right Line Output PGA", WM8903_POWER_MANAGEMENT_3, 0, 0,
NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
NULL, 0),
SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
NULL, 0),
+SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
+ wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
+SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
};
static const struct snd_soc_dapm_route intercon[] = {
{ "Right Input PGA", NULL, "Right Input Mode Mux" },
{ "ADCL", NULL, "Left Input PGA" },
+ { "ADCL", NULL, "CLK_DSP" },
{ "ADCR", NULL, "Right Input PGA" },
+ { "ADCR", NULL, "CLK_DSP" },
+
+ { "DACL Sidetone", "Left", "ADCL" },
+ { "DACL Sidetone", "Right", "ADCR" },
+ { "DACR Sidetone", "Left", "ADCL" },
+ { "DACR Sidetone", "Right", "ADCR" },
+
+ { "DACL", NULL, "DACL Sidetone" },
+ { "DACL", NULL, "CLK_DSP" },
+ { "DACR", NULL, "DACR Sidetone" },
+ { "DACR", NULL, "CLK_DSP" },
{ "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
{ "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
{ "ROP", NULL, "Right Speaker PGA" },
{ "RON", NULL, "Right Speaker PGA" },
+
+ { "Left Headphone Output PGA", NULL, "Charge Pump" },
+ { "Right Headphone Output PGA", NULL, "Charge Pump" },
+ { "Left Line Output PGA", NULL, "Charge Pump" },
+ { "Right Line Output PGA", NULL, "Charge Pump" },
};
static int wm8903_add_widgets(struct snd_soc_codec *codec)
snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
- snd_soc_dapm_new_widgets(codec);
-
return 0;
}
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
- reg = wm8903_read(codec, WM8903_VMID_CONTROL_0);
+ reg = snd_soc_read(codec, WM8903_VMID_CONTROL_0);
reg &= ~(WM8903_VMID_RES_MASK);
reg |= WM8903_VMID_RES_50K;
- wm8903_write(codec, WM8903_VMID_CONTROL_0, reg);
+ snd_soc_write(codec, WM8903_VMID_CONTROL_0, reg);
break;
case SND_SOC_BIAS_STANDBY:
if (codec->bias_level == SND_SOC_BIAS_OFF) {
- wm8903_write(codec, WM8903_CLOCK_RATES_2,
+ snd_soc_write(codec, WM8903_CLOCK_RATES_2,
WM8903_CLK_SYS_ENA);
+ /* Change DC servo dither level in startup sequence */
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, 0x11);
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_1, 0x1257);
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_2, 0x2);
+
wm8903_run_sequence(codec, 0);
wm8903_sync_reg_cache(codec, codec->reg_cache);
/* Enable low impedence charge pump output */
- reg = wm8903_read(codec,
+ reg = snd_soc_read(codec,
WM8903_CONTROL_INTERFACE_TEST_1);
- wm8903_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
+ snd_soc_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
reg | WM8903_TEST_KEY);
- reg2 = wm8903_read(codec, WM8903_CHARGE_PUMP_TEST_1);
- wm8903_write(codec, WM8903_CHARGE_PUMP_TEST_1,
+ reg2 = snd_soc_read(codec, WM8903_CHARGE_PUMP_TEST_1);
+ snd_soc_write(codec, WM8903_CHARGE_PUMP_TEST_1,
reg2 | WM8903_CP_SW_KELVIN_MODE_MASK);
- wm8903_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
+ snd_soc_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
reg);
/* By default no bypass paths are enabled so
* enable Class W support.
*/
dev_dbg(&i2c->dev, "Enabling Class W\n");
- wm8903_write(codec, WM8903_CLASS_W_0, reg |
+ snd_soc_write(codec, WM8903_CLASS_W_0, reg |
WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
}
- reg = wm8903_read(codec, WM8903_VMID_CONTROL_0);
+ reg = snd_soc_read(codec, WM8903_VMID_CONTROL_0);
reg &= ~(WM8903_VMID_RES_MASK);
reg |= WM8903_VMID_RES_250K;
- wm8903_write(codec, WM8903_VMID_CONTROL_0, reg);
+ snd_soc_write(codec, WM8903_VMID_CONTROL_0, reg);
break;
case SND_SOC_BIAS_OFF:
wm8903_run_sequence(codec, 32);
- reg = wm8903_read(codec, WM8903_CLOCK_RATES_2);
+ reg = snd_soc_read(codec, WM8903_CLOCK_RATES_2);
reg &= ~WM8903_CLK_SYS_ENA;
- wm8903_write(codec, WM8903_CLOCK_RATES_2, reg);
+ snd_soc_write(codec, WM8903_CLOCK_RATES_2, reg);
break;
}
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
wm8903->sysclk = freq;
unsigned int fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
- u16 aif1 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_1);
+ u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
return -EINVAL;
}
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
return 0;
}
struct snd_soc_codec *codec = codec_dai->codec;
u16 reg;
- reg = wm8903_read(codec, WM8903_DAC_DIGITAL_1);
+ reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
if (mute)
reg |= WM8903_DAC_MUTE;
else
reg &= ~WM8903_DAC_MUTE;
- wm8903_write(codec, WM8903_DAC_DIGITAL_1, reg);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
return 0;
}
int div;
} bclk_divs[] = {
{ 10, 0 },
- { 15, 1 },
{ 20, 2 },
{ 30, 3 },
{ 40, 4 },
{ 50, 5 },
- { 55, 6 },
{ 60, 7 },
{ 80, 8 },
{ 100, 9 },
- { 110, 10 },
{ 120, 11 },
{ 160, 12 },
{ 200, 13 },
{ 220, 14 },
{ 240, 15 },
- { 250, 16 },
{ 300, 17 },
{ 320, 18 },
{ 440, 19 },
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
struct i2c_client *i2c = codec->control_data;
struct snd_pcm_runtime *master_runtime;
if (wm8903->master_substream) {
master_runtime = wm8903->master_substream->runtime;
- dev_dbg(&i2c->dev, "Constraining to %d bits at %dHz\n",
- master_runtime->sample_bits,
- master_runtime->rate);
-
- snd_pcm_hw_constraint_minmax(substream->runtime,
- SNDRV_PCM_HW_PARAM_RATE,
- master_runtime->rate,
- master_runtime->rate);
+ dev_dbg(&i2c->dev, "Constraining to %d bits\n",
+ master_runtime->sample_bits);
snd_pcm_hw_constraint_minmax(substream->runtime,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
wm8903->playback_active--;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
struct i2c_client *i2c = codec->control_data;
int fs = params_rate(params);
int bclk;
int cur_val;
int clk_sys;
- u16 aif1 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_1);
- u16 aif2 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_2);
- u16 aif3 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_3);
- u16 clock0 = wm8903_read(codec, WM8903_CLOCK_RATES_0);
- u16 clock1 = wm8903_read(codec, WM8903_CLOCK_RATES_1);
+ u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
+ u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
+ u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
+ u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
+ u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
+ u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
if (substream == wm8903->slave_substream) {
dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n");
return 0;
}
+ /* Enable sloping stopband filter for low sample rates */
+ if (fs <= 24000)
+ dac_digital1 |= WM8903_DAC_SB_FILT;
+ else
+ dac_digital1 &= ~WM8903_DAC_SB_FILT;
+
/* Configure sample rate logic for DSP - choose nearest rate */
dsp_config = 0;
best_val = abs(sample_rates[dsp_config].rate - fs);
aif2 |= bclk_divs[bclk_div].div;
aif3 |= bclk / fs;
- wm8903_write(codec, WM8903_CLOCK_RATES_0, clock0);
- wm8903_write(codec, WM8903_CLOCK_RATES_1, clock1);
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
- wm8903_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
+ snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
+ snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
return 0;
}
+/**
+ * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
+ *
+ * @codec: WM8903 codec
+ * @jack: jack to report detection events on
+ * @det: value to report for presence detection
+ * @shrt: value to report for short detection
+ *
+ * Enable microphone detection via IRQ on the WM8903. If GPIOs are
+ * being used to bring out signals to the processor then only platform
+ * data configuration is needed for WM8903 and processor GPIOs should
+ * be configured using snd_soc_jack_add_gpios() instead.
+ *
+ * The current threasholds for detection should be configured using
+ * micdet_cfg in the platform data. Using this function will force on
+ * the microphone bias for the device.
+ */
+int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
+ int det, int shrt)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
+
+ dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
+ det, shrt);
+
+ /* Store the configuration */
+ wm8903->mic_jack = jack;
+ wm8903->mic_det = det;
+ wm8903->mic_short = shrt;
+
+ /* Enable interrupts we've got a report configured for */
+ if (det)
+ irq_mask &= ~WM8903_MICDET_EINT;
+ if (shrt)
+ irq_mask &= ~WM8903_MICSHRT_EINT;
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
+ irq_mask);
+
+ if (det && shrt) {
+ /* Enable mic detection, this may not have been set through
+ * platform data (eg, if the defaults are OK). */
+ snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, WM8903_MICDET_ENA);
+ } else {
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, 0);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8903_mic_detect);
+
+static irqreturn_t wm8903_irq(int irq, void *data)
+{
+ struct wm8903_priv *wm8903 = data;
+ struct snd_soc_codec *codec = &wm8903->codec;
+ int mic_report;
+ int int_pol;
+ int int_val = 0;
+ int mask = ~snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1_MASK);
+
+ int_val = snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1) & mask;
+
+ if (int_val & WM8903_WSEQ_BUSY_EINT) {
+ dev_dbg(codec->dev, "Write sequencer done\n");
+ complete(&wm8903->wseq);
+ }
+
+ /*
+ * The rest is microphone jack detection. We need to manually
+ * invert the polarity of the interrupt after each event - to
+ * simplify the code keep track of the last state we reported
+ * and just invert the relevant bits in both the report and
+ * the polarity register.
+ */
+ mic_report = wm8903->mic_last_report;
+ int_pol = snd_soc_read(codec, WM8903_INTERRUPT_POLARITY_1);
+
+ if (int_val & WM8903_MICSHRT_EINT) {
+ dev_dbg(codec->dev, "Microphone short (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_short;
+ int_pol ^= WM8903_MICSHRT_INV;
+ }
+
+ if (int_val & WM8903_MICDET_EINT) {
+ dev_dbg(codec->dev, "Microphone detect (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_det;
+ int_pol ^= WM8903_MICDET_INV;
+
+ msleep(wm8903->mic_delay);
+ }
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_POLARITY_1,
+ WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
+
+ snd_soc_jack_report(wm8903->mic_jack, mic_report,
+ wm8903->mic_short | wm8903->mic_det);
+
+ wm8903->mic_last_report = mic_report;
+
+ return IRQ_HANDLED;
+}
+
#define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
SNDRV_PCM_RATE_11025 | \
SNDRV_PCM_RATE_16000 | \
.formats = WM8903_FORMATS,
},
.ops = &wm8903_dai_ops,
+ .symmetric_rates = 1,
};
EXPORT_SYMBOL_GPL(wm8903_dai);
struct i2c_client *i2c = codec->control_data;
int i;
u16 *reg_cache = codec->reg_cache;
- u16 *tmp_cache = kmemdup(codec->reg_cache, sizeof(wm8903_reg_defaults),
+ u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults),
GFP_KERNEL);
/* Bring the codec back up to standby first to minimise pop/clicks */
wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- wm8903_set_bias_level(codec, codec->suspend_bias_level);
/* Sync back everything else */
if (tmp_cache) {
for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
if (tmp_cache[i] != reg_cache[i])
- wm8903_write(codec, i, tmp_cache[i]);
+ snd_soc_write(codec, i, tmp_cache[i]);
+ kfree(tmp_cache);
} else {
dev_err(&i2c->dev, "Failed to allocate temporary cache\n");
}
static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
+ struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
struct wm8903_priv *wm8903;
struct snd_soc_codec *codec;
- int ret;
+ int ret, i;
+ int trigger, irq_pol;
u16 val;
wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
codec->dev = &i2c->dev;
codec->name = "WM8903";
codec->owner = THIS_MODULE;
- codec->read = wm8903_read;
- codec->write = wm8903_write;
- codec->hw_write = (hw_write_t)i2c_master_send;
codec->bias_level = SND_SOC_BIAS_OFF;
codec->set_bias_level = wm8903_set_bias_level;
codec->dai = &wm8903_dai;
codec->num_dai = 1;
codec->reg_cache_size = ARRAY_SIZE(wm8903->reg_cache);
codec->reg_cache = &wm8903->reg_cache[0];
- codec->private_data = wm8903;
+ snd_soc_codec_set_drvdata(codec, wm8903);
+ codec->volatile_register = wm8903_volatile_register;
+ init_completion(&wm8903->wseq);
i2c_set_clientdata(i2c, codec);
codec->control_data = i2c;
- val = wm8903_hw_read(codec, WM8903_SW_RESET_AND_ID);
+ ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to set cache I/O: %d\n", ret);
+ goto err;
+ }
+
+ val = snd_soc_read(codec, WM8903_SW_RESET_AND_ID);
if (val != wm8903_reg_defaults[WM8903_SW_RESET_AND_ID]) {
dev_err(&i2c->dev,
"Device with ID register %x is not a WM8903\n", val);
return -ENODEV;
}
- val = wm8903_read(codec, WM8903_REVISION_NUMBER);
+ val = snd_soc_read(codec, WM8903_REVISION_NUMBER);
dev_info(&i2c->dev, "WM8903 revision %d\n",
val & WM8903_CHIP_REV_MASK);
wm8903_reset(codec);
+ /* Set up GPIOs and microphone detection */
+ if (pdata) {
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
+ if (!pdata->gpio_cfg[i])
+ continue;
+
+ snd_soc_write(codec, WM8903_GPIO_CONTROL_1 + i,
+ pdata->gpio_cfg[i] & 0xffff);
+ }
+
+ snd_soc_write(codec, WM8903_MIC_BIAS_CONTROL_0,
+ pdata->micdet_cfg);
+
+ /* Microphone detection needs the WSEQ clock */
+ if (pdata->micdet_cfg)
+ snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+
+ wm8903->mic_delay = pdata->micdet_delay;
+ }
+
+ if (i2c->irq) {
+ if (pdata && pdata->irq_active_low) {
+ trigger = IRQF_TRIGGER_LOW;
+ irq_pol = WM8903_IRQ_POL;
+ } else {
+ trigger = IRQF_TRIGGER_HIGH;
+ irq_pol = 0;
+ }
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_CONTROL,
+ WM8903_IRQ_POL, irq_pol);
+
+ ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
+ trigger | IRQF_ONESHOT,
+ "wm8903", wm8903);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to request IRQ: %d\n",
+ ret);
+ goto err;
+ }
+
+ /* Enable write sequencer interrupts */
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_IM_WSEQ_BUSY_EINT, 0);
+ }
+
/* power on device */
wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Latch volume update bits */
- val = wm8903_read(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT);
+ val = snd_soc_read(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT);
val |= WM8903_ADCVU;
- wm8903_write(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
- wm8903_write(codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
+ snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
+ snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
- val = wm8903_read(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT);
+ val = snd_soc_read(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT);
val |= WM8903_DACVU;
- wm8903_write(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT, val);
- wm8903_write(codec, WM8903_DAC_DIGITAL_VOLUME_RIGHT, val);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT, val);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_RIGHT, val);
- val = wm8903_read(codec, WM8903_ANALOGUE_OUT1_LEFT);
+ val = snd_soc_read(codec, WM8903_ANALOGUE_OUT1_LEFT);
val |= WM8903_HPOUTVU;
- wm8903_write(codec, WM8903_ANALOGUE_OUT1_LEFT, val);
- wm8903_write(codec, WM8903_ANALOGUE_OUT1_RIGHT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT1_LEFT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT1_RIGHT, val);
- val = wm8903_read(codec, WM8903_ANALOGUE_OUT2_LEFT);
+ val = snd_soc_read(codec, WM8903_ANALOGUE_OUT2_LEFT);
val |= WM8903_LINEOUTVU;
- wm8903_write(codec, WM8903_ANALOGUE_OUT2_LEFT, val);
- wm8903_write(codec, WM8903_ANALOGUE_OUT2_RIGHT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT2_LEFT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT2_RIGHT, val);
- val = wm8903_read(codec, WM8903_ANALOGUE_OUT3_LEFT);
+ val = snd_soc_read(codec, WM8903_ANALOGUE_OUT3_LEFT);
val |= WM8903_SPKVU;
- wm8903_write(codec, WM8903_ANALOGUE_OUT3_LEFT, val);
- wm8903_write(codec, WM8903_ANALOGUE_OUT3_RIGHT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT3_LEFT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT3_RIGHT, val);
/* Enable DAC soft mute by default */
- val = wm8903_read(codec, WM8903_DAC_DIGITAL_1);
+ val = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
val |= WM8903_DAC_MUTEMODE;
- wm8903_write(codec, WM8903_DAC_DIGITAL_1, val);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_1, val);
wm8903_dai.dev = &i2c->dev;
wm8903_codec = codec;
ret = snd_soc_register_codec(codec);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
- goto err;
+ goto err_irq;
}
ret = snd_soc_register_dai(&wm8903_dai);
err_codec:
snd_soc_unregister_codec(codec);
+err_irq:
+ if (i2c->irq)
+ free_irq(i2c->irq, wm8903);
err:
wm8903_codec = NULL;
kfree(wm8903);
static __devexit int wm8903_i2c_remove(struct i2c_client *client)
{
struct snd_soc_codec *codec = i2c_get_clientdata(client);
+ struct wm8903_priv *priv = snd_soc_codec_get_drvdata(codec);
snd_soc_unregister_dai(&wm8903_dai);
snd_soc_unregister_codec(codec);
wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
- kfree(codec->private_data);
+ if (client->irq)
+ free_irq(client->irq, priv);
+
+ kfree(priv);
wm8903_codec = NULL;
wm8903_dai.dev = NULL;
ARRAY_SIZE(wm8903_snd_controls));
wm8903_add_widgets(socdev->card->codec);
- ret = snd_soc_init_card(socdev);
- if (ret < 0) {
- dev_err(&pdev->dev, "wm8903: failed to register card\n");
- goto card_err;
- }
-
return ret;
-card_err:
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
err:
return ret;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff