[PATCH v3 30/30] mfd: cros_ec: Update I2S API

Gwendal Grignou
2019-05-09T21:14:56Z

Improve I2S API.
Rename ec_response_codec_gain into ec_codec_i2s_gain,
update caller accordlingly.

Acked-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
---
include/linux/mfd/cros_ec_commands.h | 44 +++++++++++++---------------
sound/soc/codecs/cros_ec_codec.c | 8 ++---
2 files changed, 24 insertions(+), 28 deletions(-)

diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
index fc8babce1576..fa397722f17e 100644
--- a/include/linux/mfd/cros_ec_commands.h
+++ b/include/linux/mfd/cros_ec_commands.h
@@ -4471,6 +4471,7 @@ enum mkbp_cec_event {
/* Commands for I2S recording on audio codec. */

#define EC_CMD_CODEC_I2S 0x00BC
+#define EC_WOV_I2S_SAMPLE_RATE 48000

enum ec_codec_i2s_subcmd {
EC_CODEC_SET_SAMPLE_DEPTH = 0x0,
@@ -4480,6 +4481,7 @@ enum ec_codec_i2s_subcmd {
EC_CODEC_I2S_SET_CONFIG = 0x4,
EC_CODEC_I2S_SET_TDM_CONFIG = 0x5,
EC_CODEC_I2S_SET_BCLK = 0x6,
+ EC_CODEC_I2S_SUBCMD_COUNT = 0x7,
};

enum ec_sample_depth_value {
@@ -4496,6 +4498,21 @@ enum ec_i2s_config {
EC_DAI_FMT_PCM_TDM = 5,
};

+/*
+ * For subcommand EC_CODEC_GET_GAIN.
+ */
+struct __ec_align1 ec_codec_i2s_gain {
+ uint8_t left;
+ uint8_t right;
+};
+
+struct __ec_todo_unpacked ec_param_codec_i2s_tdm {
+ int16_t ch0_delay; /* 0 to 496 */
+ int16_t ch1_delay; /* -1 to 496 */
+ uint8_t adjacent_to_ch0;
+ uint8_t adjacent_to_ch1;
+};
+
struct __ec_todo_packed ec_param_codec_i2s {
/* enum ec_codec_i2s_subcmd */
uint8_t cmd;
@@ -4510,10 +4527,7 @@ struct __ec_todo_packed ec_param_codec_i2s {
* EC_CODEC_SET_GAIN
* Value should be 0~43 for both channels.
*/
- struct __ec_align1 ec_param_codec_i2s_set_gain {
- uint8_t left;
- uint8_t right;
- } gain;
+ struct ec_codec_i2s_gain gain;

/*
* EC_CODEC_I2S_ENABLE
@@ -4522,7 +4536,7 @@ struct __ec_todo_packed ec_param_codec_i2s {
uint8_t i2s_enable;

/*
- * EC_CODEC_I2S_SET_COFNIG
+ * EC_CODEC_I2S_SET_CONFIG
* Value should be one of ec_i2s_config.
*/
uint8_t i2s_config;
@@ -4531,18 +4545,7 @@ struct __ec_todo_packed ec_param_codec_i2s {
* EC_CODEC_I2S_SET_TDM_CONFIG
* Value should be one of ec_i2s_config.
*/
- struct __ec_todo_unpacked ec_param_codec_i2s_tdm {
- /*
- * 0 to 496
- */
- int16_t ch0_delay;
- /*
- * -1 to 496
- */
- int16_t ch1_delay;
- uint8_t adjacent_to_ch0;
- uint8_t adjacent_to_ch1;
- } tdm_param;
+ struct ec_param_codec_i2s_tdm tdm_param;

/*
* EC_CODEC_I2S_SET_BCLK
@@ -4551,13 +4554,6 @@ struct __ec_todo_packed ec_param_codec_i2s {
};
};

-/*
- * For subcommand EC_CODEC_GET_GAIN.
- */
-struct ec_response_codec_gain {
- uint8_t left;
- uint8_t right;
-} __ec_align1;

/*****************************************************************************/
/* System commands */
diff --git a/sound/soc/codecs/cros_ec_codec.c b/sound/soc/codecs/cros_ec_codec.c
index 99a3af8a15ff..87830ed5ebf4 100644
--- a/sound/soc/codecs/cros_ec_codec.c
+++ b/sound/soc/codecs/cros_ec_codec.c
@@ -38,21 +38,21 @@ static const DECLARE_TLV_DB_SCALE(ec_mic_gain_tlv, 0, 100, 0);

static int ec_command_get_gain(struct snd_soc_component *component,
struct ec_param_codec_i2s *param,
- struct ec_response_codec_gain *resp)
+ struct ec_codec_i2s_gain *resp)
{
struct cros_ec_codec_data *codec_data =
snd_soc_component_get_drvdata(component);
struct cros_ec_device *ec_device = codec_data->ec_device;
u8 buffer[sizeof(struct cros_ec_command) +
max(sizeof(struct ec_param_codec_i2s),
- sizeof(struct ec_response_codec_gain))];
+ sizeof(struct ec_codec_i2s_gain))];
struct cros_ec_command *msg = (struct cros_ec_command *)&buffer;
int ret;

msg->version = 0;
msg->command = EC_CMD_CODEC_I2S;
msg->outsize = sizeof(struct ec_param_codec_i2s);
- msg->insize = sizeof(struct ec_response_codec_gain);
+ msg->insize = sizeof(struct ec_codec_i2s_gain);

memcpy(msg->data, param, msg->outsize);

@@ -226,7 +226,7 @@ static int get_ec_mic_gain(struct snd_soc_component *component,
u8 *left, u8 *right)
{
struct ec_param_codec_i2s param;
- struct ec_response_codec_gain resp;
+ struct ec_codec_i2s_gain resp;
int ret;

param.cmd = EC_CODEC_GET_GAIN;
--
2.21.0.1020.gf2820cf01a-goog