u32 index;
};
+enum pinctrl_pin_state {
+ STATE_DISABLE = 0, /* All pins are in sleep state */
+ STATE_MI2S_ACTIVE, /* IS2 = active, TDM = sleep */
+ STATE_TDM_ACTIVE, /* IS2 = sleep, TDM = active */
+};
+
+struct msm_pinctrl_info {
+ struct pinctrl *pinctrl;
+ struct pinctrl_state *mi2s_disable;
+ struct pinctrl_state *tdm_disable;
+ struct pinctrl_state *mi2s_active;
+ struct pinctrl_state *tdm_active;
+ enum pinctrl_pin_state curr_state;
+};
+
struct msm_asoc_mach_data {
u32 mclk_freq;
int us_euro_gpio; /* used by gpio driver API */
struct device_node *hph_en1_gpio_p; /* used by pinctrl API */
struct device_node *hph_en0_gpio_p; /* used by pinctrl API */
struct snd_info_entry *codec_root;
+ struct msm_pinctrl_info pinctrl_info;
};
struct msm_asoc_wcd93xx_codec {
void (*mbhc_hs_detect_exit)(struct snd_soc_codec *codec);
};
+static const char *const pin_states[] = {"sleep", "i2s-active",
+ "tdm-active"};
+
enum {
TDM_0 = 0,
TDM_1,
return ret;
}
+static int msm_set_pinctrl(struct msm_pinctrl_info *pinctrl_info,
+ enum pinctrl_pin_state new_state)
+{
+ int ret = 0;
+ int curr_state = 0;
+
+ if (pinctrl_info == NULL) {
+ pr_err("%s: pinctrl_info is NULL\n", __func__);
+ ret = -EINVAL;
+ goto err;
+ }
+ curr_state = pinctrl_info->curr_state;
+ pinctrl_info->curr_state = new_state;
+ pr_debug("%s: curr_state = %s new_state = %s\n", __func__,
+ pin_states[curr_state], pin_states[pinctrl_info->curr_state]);
+
+ if (curr_state == pinctrl_info->curr_state) {
+ pr_debug("%s: Already in same state\n", __func__);
+ goto err;
+ }
+
+ if (curr_state != STATE_DISABLE &&
+ pinctrl_info->curr_state != STATE_DISABLE) {
+ pr_debug("%s: state already active cannot switch\n", __func__);
+ ret = -EIO;
+ goto err;
+ }
+
+ switch (pinctrl_info->curr_state) {
+ case STATE_MI2S_ACTIVE:
+ ret = pinctrl_select_state(pinctrl_info->pinctrl,
+ pinctrl_info->mi2s_active);
+ if (ret) {
+ pr_err("%s: MI2S state select failed with %d\n",
+ __func__, ret);
+ ret = -EIO;
+ goto err;
+ }
+ break;
+ case STATE_TDM_ACTIVE:
+ ret = pinctrl_select_state(pinctrl_info->pinctrl,
+ pinctrl_info->tdm_active);
+ if (ret) {
+ pr_err("%s: TDM state select failed with %d\n",
+ __func__, ret);
+ ret = -EIO;
+ goto err;
+ }
+ break;
+ case STATE_DISABLE:
+ if (curr_state == STATE_MI2S_ACTIVE) {
+ ret = pinctrl_select_state(pinctrl_info->pinctrl,
+ pinctrl_info->mi2s_disable);
+ } else {
+ ret = pinctrl_select_state(pinctrl_info->pinctrl,
+ pinctrl_info->tdm_disable);
+ }
+ if (ret) {
+ pr_err("%s: state disable failed with %d\n",
+ __func__, ret);
+ ret = -EIO;
+ goto err;
+ }
+ break;
+ default:
+ pr_err("%s: TLMM pin state is invalid\n", __func__);
+ return -EINVAL;
+ }
+
+err:
+ return ret;
+}
+
+static void msm_release_pinctrl(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
+ struct msm_pinctrl_info *pinctrl_info = &pdata->pinctrl_info;
+
+ if (pinctrl_info->pinctrl) {
+ devm_pinctrl_put(pinctrl_info->pinctrl);
+ pinctrl_info->pinctrl = NULL;
+ }
+}
+
+static int msm_get_pinctrl(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
+ struct msm_pinctrl_info *pinctrl_info = NULL;
+ struct pinctrl *pinctrl;
+ int ret;
+
+ pinctrl_info = &pdata->pinctrl_info;
+
+ if (pinctrl_info == NULL) {
+ pr_err("%s: pinctrl_info is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ pinctrl = devm_pinctrl_get(&pdev->dev);
+ if (IS_ERR_OR_NULL(pinctrl)) {
+ pr_err("%s: Unable to get pinctrl handle\n", __func__);
+ return -EINVAL;
+ }
+ pinctrl_info->pinctrl = pinctrl;
+
+ /* get all the states handles from Device Tree */
+ pinctrl_info->mi2s_disable = pinctrl_lookup_state(pinctrl,
+ "quat-mi2s-sleep");
+ if (IS_ERR(pinctrl_info->mi2s_disable)) {
+ pr_err("%s: could not get mi2s_disable pinstate\n", __func__);
+ goto err;
+ }
+ pinctrl_info->mi2s_active = pinctrl_lookup_state(pinctrl,
+ "quat-mi2s-active");
+ if (IS_ERR(pinctrl_info->mi2s_active)) {
+ pr_err("%s: could not get mi2s_active pinstate\n", __func__);
+ goto err;
+ }
+ pinctrl_info->tdm_disable = pinctrl_lookup_state(pinctrl,
+ "quat-tdm-sleep");
+ if (IS_ERR(pinctrl_info->tdm_disable)) {
+ pr_err("%s: could not get tdm_disable pinstate\n", __func__);
+ goto err;
+ }
+ pinctrl_info->tdm_active = pinctrl_lookup_state(pinctrl,
+ "quat-tdm-active");
+ if (IS_ERR(pinctrl_info->tdm_active)) {
+ pr_err("%s: could not get tdm_active pinstate\n",
+ __func__);
+ goto err;
+ }
+ /* Reset the TLMM pins to a default state */
+ ret = pinctrl_select_state(pinctrl_info->pinctrl,
+ pinctrl_info->mi2s_disable);
+ if (ret != 0) {
+ pr_err("%s: Disable TLMM pins failed with %d\n",
+ __func__, ret);
+ ret = -EIO;
+ goto err;
+ }
+ pinctrl_info->curr_state = STATE_DISABLE;
+
+ return 0;
+
+err:
+ devm_pinctrl_put(pinctrl);
+ pinctrl_info->pinctrl = NULL;
+ return -EINVAL;
+}
+
+static int msm_tdm_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_interval *rate = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval *channels = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+
+ if (cpu_dai->id == AFE_PORT_ID_QUATERNARY_TDM_RX) {
+ channels->min = channels->max =
+ tdm_rx_cfg[TDM_QUAT][TDM_0].channels;
+ param_set_mask(params, SNDRV_PCM_HW_PARAM_FORMAT,
+ tdm_rx_cfg[TDM_QUAT][TDM_0].bit_format);
+ rate->min = rate->max =
+ tdm_rx_cfg[TDM_QUAT][TDM_0].sample_rate;
+ } else if (cpu_dai->id == AFE_PORT_ID_SECONDARY_TDM_RX) {
+ channels->min = channels->max =
+ tdm_rx_cfg[TDM_SEC][TDM_0].channels;
+ param_set_mask(params, SNDRV_PCM_HW_PARAM_FORMAT,
+ tdm_rx_cfg[TDM_SEC][TDM_0].bit_format);
+ rate->min = rate->max = tdm_rx_cfg[TDM_SEC][TDM_0].sample_rate;
+ } else {
+ pr_err("%s: dai id 0x%x not supported\n",
+ __func__, cpu_dai->id);
+ return -EINVAL;
+ }
+
+ pr_debug("%s: dai id = 0x%x channels = %d rate = %d format = 0x%x\n",
+ __func__, cpu_dai->id, channels->max, rate->max,
+ params_format(params));
+
+ return 0;
+}
+
+static int msm8998_tdm_snd_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ int ret = 0;
+ int channels, slot_width, slots;
+ unsigned int slot_mask;
+ unsigned int slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
+
+ pr_debug("%s: dai id = 0x%x\n", __func__, cpu_dai->id);
+
+ slots = tdm_rx_cfg[TDM_QUAT][TDM_0].channels;
+ /*2 slot config - bits 0 and 1 set for the first two slots */
+ slot_mask = 0x0000FFFF >> (16-slots);
+ slot_width = 32;
+ channels = slots;
+
+ pr_debug("%s: slot_width %d slots %d\n", __func__, slot_width, slots);
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ pr_debug("%s: slot_width %d\n", __func__, slot_width);
+ ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, slot_mask,
+ slots, slot_width);
+ if (ret < 0) {
+ pr_err("%s: failed to set tdm slot, err:%d\n",
+ __func__, ret);
+ goto end;
+ }
+
+ ret = snd_soc_dai_set_channel_map(cpu_dai,
+ 0, NULL, channels, slot_offset);
+ if (ret < 0) {
+ pr_err("%s: failed to set channel map, err:%d\n",
+ __func__, ret);
+ goto end;
+ }
+ } else {
+ pr_err("%s: invalid use case, err:%d\n",
+ __func__, ret);
+ }
+
+end:
+ return ret;
+}
+
+static int msm8998_tdm_snd_startup(struct snd_pcm_substream *substream)
+{
+ int ret = 0;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
+ struct msm_pinctrl_info *pinctrl_info = &pdata->pinctrl_info;
+
+ ret = msm_set_pinctrl(pinctrl_info, STATE_TDM_ACTIVE);
+ if (ret)
+ pr_err("%s: MI2S TLMM pinctrl set failed with %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
+static void msm8998_tdm_snd_shutdown(struct snd_pcm_substream *substream)
+{
+ int ret = 0;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
+ struct msm_pinctrl_info *pinctrl_info = &pdata->pinctrl_info;
+
+ ret = msm_set_pinctrl(pinctrl_info, STATE_DISABLE);
+ if (ret)
+ pr_err("%s: MI2S TLMM pinctrl set failed with %d\n",
+ __func__, ret);
+
+}
+
+static struct snd_soc_ops msm8998_tdm_be_ops = {
+ .hw_params = msm8998_tdm_snd_hw_params,
+ .startup = msm8998_tdm_snd_startup,
+ .shutdown = msm8998_tdm_snd_shutdown
+};
+
static int msm_mi2s_snd_startup(struct snd_pcm_substream *substream)
{
int ret = 0;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int index = cpu_dai->id;
unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
+ struct snd_soc_card *card = rtd->card;
+ struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
+ struct msm_pinctrl_info *pinctrl_info = &pdata->pinctrl_info;
dev_dbg(rtd->card->dev,
"%s: substream = %s stream = %d, dai name %s, dai ID %d\n",
__func__, cpu_dai->id);
goto done;
}
+ if (index == QUAT_MI2S) {
+ ret = msm_set_pinctrl(pinctrl_info, STATE_MI2S_ACTIVE);
+ if (ret) {
+ pr_err("%s: MI2S TLMM pinctrl set failed with %d\n",
+ __func__, ret);
+ goto done;
+ }
+ }
+
/*
* Muxtex protection in case the same MI2S
* interface using for both TX and RX so
int ret;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
int index = rtd->cpu_dai->id;
+ struct snd_soc_card *card = rtd->card;
+ struct msm_asoc_mach_data *pdata = snd_soc_card_get_drvdata(card);
+ struct msm_pinctrl_info *pinctrl_info = &pdata->pinctrl_info;
pr_debug("%s(): substream = %s stream = %d\n", __func__,
substream->name, substream->stream);
}
}
mutex_unlock(&mi2s_intf_conf[index].lock);
+
+ if (index == QUAT_MI2S) {
+ ret = msm_set_pinctrl(pinctrl_info, STATE_DISABLE);
+ if (ret)
+ pr_err("%s: MI2S TLMM pinctrl set failed with %d\n",
+ __func__, ret);
+ }
}
static struct snd_soc_ops msm_mi2s_be_ops = {
.no_pcm = 1,
.dpcm_playback = 1,
.be_id = MSM_BACKEND_DAI_QUAT_TDM_RX_0,
- .be_hw_params_fixup = msm_be_hw_params_fixup,
- .ops = &msm_tdm_be_ops,
+ .be_hw_params_fixup = msm_tdm_be_hw_params_fixup,
+ .ops = &msm8998_tdm_be_ops,
.ignore_suspend = 1,
},
{
dev_dbg(&pdev->dev, "msm_prepare_us_euro failed (%d)\n",
ret);
+ /* Parse pinctrl info from devicetree */
+ ret = msm_get_pinctrl(pdev);
+ if (!ret) {
+ pr_debug("%s: pinctrl parsing successful\n", __func__);
+ } else {
+ dev_dbg(&pdev->dev,
+ "%s: Parsing pinctrl failed with %d. Cannot use Ports\n",
+ __func__, ret);
+ ret = 0;
+ }
+
i2s_auxpcm_init(pdev);
is_initial_boot = true;
gpio_free(pdata->us_euro_gpio);
pdata->us_euro_gpio = 0;
}
+ msm_release_pinctrl(pdev);
devm_kfree(&pdev->dev, pdata);
return ret;
}
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