ALSA: x86: Fold intel_hdmi_audio_if.c into main file
As the very last step, we fold intel_hdmi_audio_if.c into the main file, intel_hdmi_audio.c. This is merely a cleanup, and no functional change. By this move, we can mark all functions and variables as static, which allows the compiler more optimizations. Signed-off-by: Takashi Iwai <tiwai@suse.de>hifive-unleashed-5.1
Takashi Iwai
parent
da86480974
commit
372d855f87
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@ -1,5 +1,4 @@
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snd-hdmi-lpe-audio-objs += \
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intel_hdmi_audio.o \
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intel_hdmi_audio_if.o
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intel_hdmi_audio.o
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obj-$(CONFIG_HDMI_LPE_AUDIO) += snd-hdmi-lpe-audio.o
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@ -157,8 +157,7 @@ static const struct snd_pcm_hardware snd_intel_hadstream = {
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};
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/* Register access functions */
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int had_get_hwstate(struct snd_intelhad *intelhaddata)
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static int had_get_hwstate(struct snd_intelhad *intelhaddata)
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{
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/* Check for device presence -SW state */
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if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
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@ -182,7 +181,8 @@ mid_hdmi_audio_write(struct snd_intelhad *ctx, u32 reg, u32 val)
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iowrite32(val, ctx->mmio_start + ctx->had_config_offset + reg);
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}
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int had_read_register(struct snd_intelhad *intelhaddata, u32 offset, u32 *data)
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static int had_read_register(struct snd_intelhad *intelhaddata,
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u32 offset, u32 *data)
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{
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int retval;
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@ -203,7 +203,8 @@ static void fixup_dp_config(struct snd_intelhad *intelhaddata,
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}
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}
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int had_write_register(struct snd_intelhad *intelhaddata, u32 offset, u32 data)
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static int had_write_register(struct snd_intelhad *intelhaddata,
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u32 offset, u32 data)
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{
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int retval;
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@ -216,8 +217,8 @@ int had_write_register(struct snd_intelhad *intelhaddata, u32 offset, u32 data)
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return 0;
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}
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int had_read_modify(struct snd_intelhad *intelhaddata, u32 offset,
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u32 data, u32 mask)
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static int had_read_modify(struct snd_intelhad *intelhaddata, u32 offset,
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u32 data, u32 mask)
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{
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u32 val_tmp;
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int retval;
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@ -280,7 +281,7 @@ static int had_read_modify_aud_config_v2(struct snd_intelhad *intelhaddata,
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return had_read_modify(intelhaddata, AUD_CONFIG, data, mask);
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}
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void snd_intelhad_enable_audio_int(struct snd_intelhad *ctx, bool enable)
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static void snd_intelhad_enable_audio_int(struct snd_intelhad *ctx, bool enable)
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{
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u32 status_reg;
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@ -292,8 +293,8 @@ void snd_intelhad_enable_audio_int(struct snd_intelhad *ctx, bool enable)
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}
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}
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void snd_intelhad_enable_audio(struct snd_intelhad *intelhaddata,
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bool enable)
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static void snd_intelhad_enable_audio(struct snd_intelhad *intelhaddata,
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bool enable)
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{
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had_read_modify_aud_config_v2(intelhaddata, enable ? BIT(0) : 0,
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BIT(0));
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@ -488,7 +489,7 @@ static int spk_to_chmap(int spk)
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return 0;
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}
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void had_build_channel_allocation_map(struct snd_intelhad *intelhaddata)
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static void had_build_channel_allocation_map(struct snd_intelhad *intelhaddata)
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{
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int i = 0, c = 0;
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int spk_mask = 0;
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@ -675,7 +676,7 @@ static void snd_intelhad_prog_dip(struct snd_pcm_substream *substream,
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*
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* This function programs ring buffer address and length into registers.
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*/
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int snd_intelhad_prog_buffer(struct snd_intelhad *intelhaddata,
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static int snd_intelhad_prog_buffer(struct snd_intelhad *intelhaddata,
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int start, int end)
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{
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u32 ring_buf_addr, ring_buf_size, period_bytes;
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@ -732,7 +733,7 @@ int snd_intelhad_prog_buffer(struct snd_intelhad *intelhaddata,
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return 0;
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}
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int snd_intelhad_read_len(struct snd_intelhad *intelhaddata)
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static int snd_intelhad_read_len(struct snd_intelhad *intelhaddata)
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{
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int i, retval = 0;
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u32 len[4];
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@ -939,7 +940,7 @@ static int snd_intelhad_prog_n(u32 aud_samp_freq, u32 *n_param,
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return 0;
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}
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void snd_intelhad_handle_underrun(struct snd_intelhad *intelhaddata)
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static void snd_intelhad_handle_underrun(struct snd_intelhad *intelhaddata)
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{
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u32 hdmi_status, i = 0;
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@ -1459,8 +1460,364 @@ out:
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return retval;
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}
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/*PCM operations structure and the calls back for the same */
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struct snd_pcm_ops snd_intelhad_playback_ops = {
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/*
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* hdmi_lpe_audio_suspend - power management suspend function
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*
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* @pdev: platform device
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*
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* This function is called by client driver to suspend the
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* hdmi audio.
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*/
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static int hdmi_lpe_audio_suspend(struct platform_device *pdev,
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pm_message_t state)
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{
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struct had_stream_data *had_stream;
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unsigned long flag_irqs;
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struct snd_pcm_substream *substream;
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struct snd_intelhad *intelhaddata = platform_get_drvdata(pdev);
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pr_debug("Enter:%s\n", __func__);
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had_stream = &intelhaddata->stream_data;
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substream = intelhaddata->stream_info.had_substream;
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if (intelhaddata->dev->power.runtime_status != RPM_SUSPENDED) {
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pr_err("audio stream is active\n");
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return -EAGAIN;
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}
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spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
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if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_debug("had not connected\n");
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return 0;
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}
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if (intelhaddata->drv_status == HAD_DRV_SUSPENDED) {
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_debug("had already suspended\n");
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return 0;
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}
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intelhaddata->drv_status = HAD_DRV_SUSPENDED;
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pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_SUSPENDED\n",
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__func__, __LINE__);
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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snd_intelhad_enable_audio_int(intelhaddata, false);
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pr_debug("Exit:%s", __func__);
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return 0;
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}
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/*
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* hdmi_lpe_audio_resume - power management resume function
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*
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*@pdev: platform device
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*
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* This function is called by client driver to resume the
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* hdmi audio.
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*/
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static int hdmi_lpe_audio_resume(struct platform_device *pdev)
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{
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struct snd_intelhad *intelhaddata = platform_get_drvdata(pdev);
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unsigned long flag_irqs;
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pr_debug("Enter:%s\n", __func__);
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spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
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if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_debug("had not connected\n");
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return 0;
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}
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if (intelhaddata->drv_status != HAD_DRV_SUSPENDED) {
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_err("had is not in suspended state\n");
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return 0;
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}
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if (had_get_hwstate(intelhaddata)) {
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_err("Failed to resume. Device not accessible\n");
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return -ENODEV;
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}
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intelhaddata->drv_status = HAD_DRV_CONNECTED;
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pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_DISCONNECTED\n",
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__func__, __LINE__);
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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snd_intelhad_enable_audio_int(intelhaddata, true);
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pr_debug("Exit:%s", __func__);
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return 0;
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}
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static inline int had_chk_intrmiss(struct snd_intelhad *intelhaddata,
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enum intel_had_aud_buf_type buf_id)
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{
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int i, intr_count = 0;
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enum intel_had_aud_buf_type buff_done;
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u32 buf_size, buf_addr;
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struct had_stream_data *had_stream;
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unsigned long flag_irqs;
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had_stream = &intelhaddata->stream_data;
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buff_done = buf_id;
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intr_count = snd_intelhad_read_len(intelhaddata);
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if (intr_count > 1) {
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/* In case of active playback */
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pr_err("Driver detected %d missed buffer done interrupt(s)!!!!\n",
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(intr_count - 1));
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if (intr_count > 3)
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return intr_count;
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buf_id += (intr_count - 1);
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/* Reprogram registers*/
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for (i = buff_done; i < buf_id; i++) {
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int j = i % 4;
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buf_size = intelhaddata->buf_info[j].buf_size;
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buf_addr = intelhaddata->buf_info[j].buf_addr;
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had_write_register(intelhaddata,
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AUD_BUF_A_LENGTH +
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(j * HAD_REG_WIDTH), buf_size);
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had_write_register(intelhaddata,
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AUD_BUF_A_ADDR+(j * HAD_REG_WIDTH),
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(buf_addr | BIT(0) | BIT(1)));
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}
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buf_id = buf_id % 4;
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spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
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intelhaddata->buff_done = buf_id;
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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}
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return intr_count;
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}
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static int had_process_buffer_done(struct snd_intelhad *intelhaddata)
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{
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u32 len = 1;
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enum intel_had_aud_buf_type buf_id;
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enum intel_had_aud_buf_type buff_done;
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struct pcm_stream_info *stream;
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u32 buf_size;
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struct had_stream_data *had_stream;
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int intr_count;
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enum had_status_stream stream_type;
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unsigned long flag_irqs;
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had_stream = &intelhaddata->stream_data;
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stream = &intelhaddata->stream_info;
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intr_count = 1;
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spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
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if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_err("%s:Device already disconnected\n", __func__);
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return 0;
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}
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buf_id = intelhaddata->curr_buf;
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intelhaddata->buff_done = buf_id;
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buff_done = intelhaddata->buff_done;
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buf_size = intelhaddata->buf_info[buf_id].buf_size;
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stream_type = had_stream->stream_type;
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pr_debug("Enter:%s buf_id=%d\n", __func__, buf_id);
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/* Every debug statement has an implication
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* of ~5msec. Thus, avoid having >3 debug statements
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* for each buffer_done handling.
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*/
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/* Check for any intr_miss in case of active playback */
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if (had_stream->stream_type == HAD_RUNNING_STREAM) {
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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intr_count = had_chk_intrmiss(intelhaddata, buf_id);
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if (!intr_count || (intr_count > 3)) {
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pr_err("HAD SW state in non-recoverable!!! mode\n");
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pr_err("Already played stale data\n");
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return 0;
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}
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buf_id += (intr_count - 1);
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buf_id = buf_id % 4;
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spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
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}
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intelhaddata->buf_info[buf_id].is_valid = true;
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if (intelhaddata->valid_buf_cnt-1 == buf_id) {
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if (had_stream->stream_type >= HAD_RUNNING_STREAM)
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intelhaddata->curr_buf = HAD_BUF_TYPE_A;
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} else
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intelhaddata->curr_buf = buf_id + 1;
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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if (had_get_hwstate(intelhaddata)) {
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pr_err("HDMI cable plugged-out\n");
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return 0;
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}
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/*Reprogram the registers with addr and length*/
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had_write_register(intelhaddata,
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AUD_BUF_A_LENGTH + (buf_id * HAD_REG_WIDTH),
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buf_size);
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had_write_register(intelhaddata,
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AUD_BUF_A_ADDR + (buf_id * HAD_REG_WIDTH),
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intelhaddata->buf_info[buf_id].buf_addr |
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BIT(0) | BIT(1));
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had_read_register(intelhaddata,
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AUD_BUF_A_LENGTH + (buf_id * HAD_REG_WIDTH),
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&len);
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pr_debug("%s:Enabled buf[%d]\n", __func__, buf_id);
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/* In case of actual data,
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* report buffer_done to above ALSA layer
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*/
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buf_size = intelhaddata->buf_info[buf_id].buf_size;
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if (stream_type >= HAD_RUNNING_STREAM) {
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intelhaddata->stream_info.buffer_rendered +=
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(intr_count * buf_size);
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stream->period_elapsed(stream->had_substream);
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}
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return 0;
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}
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static int had_process_buffer_underrun(struct snd_intelhad *intelhaddata)
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{
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enum intel_had_aud_buf_type buf_id;
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struct pcm_stream_info *stream;
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struct had_stream_data *had_stream;
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enum had_status_stream stream_type;
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unsigned long flag_irqs;
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int drv_status;
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had_stream = &intelhaddata->stream_data;
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stream = &intelhaddata->stream_info;
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spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
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buf_id = intelhaddata->curr_buf;
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stream_type = had_stream->stream_type;
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intelhaddata->buff_done = buf_id;
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drv_status = intelhaddata->drv_status;
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if (stream_type == HAD_RUNNING_STREAM)
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intelhaddata->curr_buf = HAD_BUF_TYPE_A;
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_debug("Enter:%s buf_id=%d, stream_type=%d\n",
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__func__, buf_id, stream_type);
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snd_intelhad_handle_underrun(intelhaddata);
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if (drv_status == HAD_DRV_DISCONNECTED) {
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pr_err("%s:Device already disconnected\n", __func__);
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return 0;
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}
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if (stream_type == HAD_RUNNING_STREAM) {
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/* Report UNDERRUN error to above layers */
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intelhaddata->flag_underrun = 1;
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stream->period_elapsed(stream->had_substream);
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}
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return 0;
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}
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static int had_process_hot_plug(struct snd_intelhad *intelhaddata)
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{
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enum intel_had_aud_buf_type buf_id;
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struct snd_pcm_substream *substream;
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struct had_stream_data *had_stream;
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unsigned long flag_irqs;
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pr_debug("Enter:%s\n", __func__);
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substream = intelhaddata->stream_info.had_substream;
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had_stream = &intelhaddata->stream_data;
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spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
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if (intelhaddata->drv_status == HAD_DRV_CONNECTED) {
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pr_debug("Device already connected\n");
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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return 0;
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}
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buf_id = intelhaddata->curr_buf;
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intelhaddata->buff_done = buf_id;
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intelhaddata->drv_status = HAD_DRV_CONNECTED;
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pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_CONNECTED\n",
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__func__, __LINE__);
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spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
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pr_debug("Processing HOT_PLUG, buf_id = %d\n", buf_id);
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/* Safety check */
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if (substream) {
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pr_debug("There should not be active PB from ALSA\n");
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pr_debug("Signifies, cable is plugged-in even before\n");
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pr_debug("processing snd_pcm_disconnect\n");
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/* Set runtime->state to hw_params done */
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snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
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}
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had_build_channel_allocation_map(intelhaddata);
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return 0;
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}
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static int had_process_hot_unplug(struct snd_intelhad *intelhaddata)
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{
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enum intel_had_aud_buf_type buf_id;
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struct had_stream_data *had_stream;
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unsigned long flag_irqs;
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pr_debug("Enter:%s\n", __func__);
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had_stream = &intelhaddata->stream_data;
|
||||
buf_id = intelhaddata->curr_buf;
|
||||
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
|
||||
if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
|
||||
pr_debug("Device already disconnected\n");
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
return 0;
|
||||
|
||||
} else {
|
||||
/* Disable Audio */
|
||||
snd_intelhad_enable_audio_int(intelhaddata, false);
|
||||
snd_intelhad_enable_audio(intelhaddata, false);
|
||||
}
|
||||
|
||||
intelhaddata->drv_status = HAD_DRV_DISCONNECTED;
|
||||
pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_DISCONNECTED\n",
|
||||
__func__, __LINE__);
|
||||
|
||||
/* Report to above ALSA layer */
|
||||
if (intelhaddata->stream_info.had_substream != NULL) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_debug("%s: unlock -> sending pcm_stop -> lock\n", __func__);
|
||||
snd_pcm_stop(intelhaddata->stream_info.had_substream,
|
||||
SNDRV_PCM_STATE_SETUP);
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
}
|
||||
|
||||
had_stream->stream_type = HAD_INIT;
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
kfree(intelhaddata->chmap->chmap);
|
||||
intelhaddata->chmap->chmap = NULL;
|
||||
intelhaddata->audio_reg_base = NULL;
|
||||
pr_debug("%s: unlocked -> returned\n", __func__);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* PCM operations structure and the calls back for the same */
|
||||
static struct snd_pcm_ops snd_intelhad_playback_ops = {
|
||||
.open = snd_intelhad_open,
|
||||
.close = snd_intelhad_close,
|
||||
.ioctl = snd_pcm_lib_ioctl,
|
||||
|
|
@ -1472,7 +1829,7 @@ struct snd_pcm_ops snd_intelhad_playback_ops = {
|
|||
.mmap = snd_intelhad_pcm_mmap,
|
||||
};
|
||||
|
||||
/**
|
||||
/*
|
||||
* snd_intelhad_pcm_free - to free the memory allocated
|
||||
*
|
||||
* @pcm: pointer to pcm instance
|
||||
|
|
@ -1505,6 +1862,7 @@ static int had_iec958_get(struct snd_kcontrol *kcontrol,
|
|||
(intelhaddata->aes_bits >> 24) & 0xff;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int had_iec958_mask_get(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1514,6 +1872,7 @@ static int had_iec958_mask_get(struct snd_kcontrol *kcontrol,
|
|||
ucontrol->value.iec958.status[3] = 0xff;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int had_iec958_put(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -154,35 +154,4 @@ struct snd_intelhad {
|
|||
struct work_struct hdmi_audio_wq;
|
||||
};
|
||||
|
||||
int hdmi_lpe_audio_suspend(struct platform_device *pdev, pm_message_t state);
|
||||
int hdmi_lpe_audio_resume(struct platform_device *pdev);
|
||||
extern struct snd_pcm_ops snd_intelhad_playback_ops;
|
||||
|
||||
int had_process_buffer_done(struct snd_intelhad *intelhaddata);
|
||||
int had_process_buffer_underrun(struct snd_intelhad *intelhaddata);
|
||||
int had_process_hot_plug(struct snd_intelhad *intelhaddata);
|
||||
int had_process_hot_unplug(struct snd_intelhad *intelhaddata);
|
||||
|
||||
int snd_intelhad_init_audio_ctrl(struct snd_pcm_substream *substream,
|
||||
struct snd_intelhad *intelhaddata,
|
||||
int flag_silence);
|
||||
int snd_intelhad_prog_buffer(struct snd_intelhad *intelhaddata,
|
||||
int start, int end);
|
||||
int snd_intelhad_invd_buffer(int start, int end);
|
||||
int snd_intelhad_read_len(struct snd_intelhad *intelhaddata);
|
||||
void had_build_channel_allocation_map(struct snd_intelhad *intelhaddata);
|
||||
|
||||
void snd_intelhad_enable_audio_int(struct snd_intelhad *ctx, bool enable);
|
||||
void snd_intelhad_enable_audio(struct snd_intelhad *ctx, bool enable);
|
||||
void snd_intelhad_handle_underrun(struct snd_intelhad *intelhaddata);
|
||||
|
||||
/* Register access functions */
|
||||
int had_get_hwstate(struct snd_intelhad *intelhaddata);
|
||||
int had_read_register(struct snd_intelhad *intelhaddata,
|
||||
u32 reg_addr, u32 *data);
|
||||
int had_write_register(struct snd_intelhad *intelhaddata,
|
||||
u32 reg_addr, u32 data);
|
||||
int had_read_modify(struct snd_intelhad *intelhaddata,
|
||||
u32 reg_addr, u32 data, u32 mask);
|
||||
|
||||
#endif /* _INTEL_HDMI_AUDIO_ */
|
||||
|
|
|
|||
|
|
@ -1,390 +0,0 @@
|
|||
/*
|
||||
* intel_hdmi_audio_if.c - Intel HDMI audio driver for MID
|
||||
*
|
||||
* Copyright (C) 2016 Intel Corp
|
||||
* Authors: Sailaja Bandarupalli <sailaja.bandarupalli@intel.com>
|
||||
* Ramesh Babu K V <ramesh.babu@intel.com>
|
||||
* Vaibhav Agarwal <vaibhav.agarwal@intel.com>
|
||||
* Jerome Anand <jerome.anand@intel.com>
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
* ALSA driver for Intel MID HDMI audio controller. This file contains
|
||||
* interface functions exposed to HDMI Display driver and code to register
|
||||
* with ALSA framework..
|
||||
*/
|
||||
|
||||
#define pr_fmt(fmt) "had: " fmt
|
||||
|
||||
#include <linux/io.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/slab.h>
|
||||
#include <sound/pcm.h>
|
||||
#include <sound/core.h>
|
||||
#include "intel_hdmi_audio.h"
|
||||
#include "intel_hdmi_lpe_audio.h"
|
||||
|
||||
/*
|
||||
* hdmi_lpe_audio_suspend - power management suspend function
|
||||
*
|
||||
* @pdev: platform device
|
||||
*
|
||||
* This function is called by client driver to suspend the
|
||||
* hdmi audio.
|
||||
*/
|
||||
int hdmi_lpe_audio_suspend(struct platform_device *pdev, pm_message_t state)
|
||||
{
|
||||
struct had_stream_data *had_stream;
|
||||
unsigned long flag_irqs;
|
||||
struct snd_pcm_substream *substream;
|
||||
struct snd_intelhad *intelhaddata = platform_get_drvdata(pdev);
|
||||
|
||||
pr_debug("Enter:%s\n", __func__);
|
||||
|
||||
had_stream = &intelhaddata->stream_data;
|
||||
substream = intelhaddata->stream_info.had_substream;
|
||||
|
||||
if (intelhaddata->dev->power.runtime_status != RPM_SUSPENDED) {
|
||||
pr_err("audio stream is active\n");
|
||||
return -EAGAIN;
|
||||
}
|
||||
|
||||
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_debug("had not connected\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (intelhaddata->drv_status == HAD_DRV_SUSPENDED) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_debug("had already suspended\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
intelhaddata->drv_status = HAD_DRV_SUSPENDED;
|
||||
pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_SUSPENDED\n",
|
||||
__func__, __LINE__);
|
||||
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
snd_intelhad_enable_audio_int(intelhaddata, false);
|
||||
pr_debug("Exit:%s", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* hdmi_lpe_audio_resume - power management resume function
|
||||
*
|
||||
*@pdev: platform device
|
||||
*
|
||||
* This function is called by client driver to resume the
|
||||
* hdmi audio.
|
||||
*/
|
||||
int hdmi_lpe_audio_resume(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_intelhad *intelhaddata = platform_get_drvdata(pdev);
|
||||
unsigned long flag_irqs;
|
||||
|
||||
pr_debug("Enter:%s\n", __func__);
|
||||
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_debug("had not connected\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (intelhaddata->drv_status != HAD_DRV_SUSPENDED) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_err("had is not in suspended state\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (had_get_hwstate(intelhaddata)) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_err("Failed to resume. Device not accessible\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
intelhaddata->drv_status = HAD_DRV_CONNECTED;
|
||||
pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_DISCONNECTED\n",
|
||||
__func__, __LINE__);
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
snd_intelhad_enable_audio_int(intelhaddata, true);
|
||||
pr_debug("Exit:%s", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int had_chk_intrmiss(struct snd_intelhad *intelhaddata,
|
||||
enum intel_had_aud_buf_type buf_id)
|
||||
{
|
||||
int i, intr_count = 0;
|
||||
enum intel_had_aud_buf_type buff_done;
|
||||
u32 buf_size, buf_addr;
|
||||
struct had_stream_data *had_stream;
|
||||
unsigned long flag_irqs;
|
||||
|
||||
had_stream = &intelhaddata->stream_data;
|
||||
|
||||
buff_done = buf_id;
|
||||
|
||||
intr_count = snd_intelhad_read_len(intelhaddata);
|
||||
if (intr_count > 1) {
|
||||
/* In case of active playback */
|
||||
pr_err("Driver detected %d missed buffer done interrupt(s)!!!!\n",
|
||||
(intr_count - 1));
|
||||
if (intr_count > 3)
|
||||
return intr_count;
|
||||
|
||||
buf_id += (intr_count - 1);
|
||||
/* Reprogram registers*/
|
||||
for (i = buff_done; i < buf_id; i++) {
|
||||
int j = i % 4;
|
||||
|
||||
buf_size = intelhaddata->buf_info[j].buf_size;
|
||||
buf_addr = intelhaddata->buf_info[j].buf_addr;
|
||||
had_write_register(intelhaddata,
|
||||
AUD_BUF_A_LENGTH +
|
||||
(j * HAD_REG_WIDTH), buf_size);
|
||||
had_write_register(intelhaddata,
|
||||
AUD_BUF_A_ADDR+(j * HAD_REG_WIDTH),
|
||||
(buf_addr | BIT(0) | BIT(1)));
|
||||
}
|
||||
buf_id = buf_id % 4;
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
intelhaddata->buff_done = buf_id;
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
}
|
||||
|
||||
return intr_count;
|
||||
}
|
||||
|
||||
int had_process_buffer_done(struct snd_intelhad *intelhaddata)
|
||||
{
|
||||
u32 len = 1;
|
||||
enum intel_had_aud_buf_type buf_id;
|
||||
enum intel_had_aud_buf_type buff_done;
|
||||
struct pcm_stream_info *stream;
|
||||
u32 buf_size;
|
||||
struct had_stream_data *had_stream;
|
||||
int intr_count;
|
||||
enum had_status_stream stream_type;
|
||||
unsigned long flag_irqs;
|
||||
|
||||
had_stream = &intelhaddata->stream_data;
|
||||
stream = &intelhaddata->stream_info;
|
||||
intr_count = 1;
|
||||
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_err("%s:Device already disconnected\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
buf_id = intelhaddata->curr_buf;
|
||||
intelhaddata->buff_done = buf_id;
|
||||
buff_done = intelhaddata->buff_done;
|
||||
buf_size = intelhaddata->buf_info[buf_id].buf_size;
|
||||
stream_type = had_stream->stream_type;
|
||||
|
||||
pr_debug("Enter:%s buf_id=%d\n", __func__, buf_id);
|
||||
|
||||
/* Every debug statement has an implication
|
||||
* of ~5msec. Thus, avoid having >3 debug statements
|
||||
* for each buffer_done handling.
|
||||
*/
|
||||
|
||||
/* Check for any intr_miss in case of active playback */
|
||||
if (had_stream->stream_type == HAD_RUNNING_STREAM) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
intr_count = had_chk_intrmiss(intelhaddata, buf_id);
|
||||
if (!intr_count || (intr_count > 3)) {
|
||||
pr_err("HAD SW state in non-recoverable!!! mode\n");
|
||||
pr_err("Already played stale data\n");
|
||||
return 0;
|
||||
}
|
||||
buf_id += (intr_count - 1);
|
||||
buf_id = buf_id % 4;
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
}
|
||||
|
||||
intelhaddata->buf_info[buf_id].is_valid = true;
|
||||
if (intelhaddata->valid_buf_cnt-1 == buf_id) {
|
||||
if (had_stream->stream_type >= HAD_RUNNING_STREAM)
|
||||
intelhaddata->curr_buf = HAD_BUF_TYPE_A;
|
||||
} else
|
||||
intelhaddata->curr_buf = buf_id + 1;
|
||||
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
|
||||
if (had_get_hwstate(intelhaddata)) {
|
||||
pr_err("HDMI cable plugged-out\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*Reprogram the registers with addr and length*/
|
||||
had_write_register(intelhaddata,
|
||||
AUD_BUF_A_LENGTH + (buf_id * HAD_REG_WIDTH),
|
||||
buf_size);
|
||||
had_write_register(intelhaddata,
|
||||
AUD_BUF_A_ADDR + (buf_id * HAD_REG_WIDTH),
|
||||
intelhaddata->buf_info[buf_id].buf_addr |
|
||||
BIT(0) | BIT(1));
|
||||
|
||||
had_read_register(intelhaddata,
|
||||
AUD_BUF_A_LENGTH + (buf_id * HAD_REG_WIDTH),
|
||||
&len);
|
||||
pr_debug("%s:Enabled buf[%d]\n", __func__, buf_id);
|
||||
|
||||
/* In case of actual data,
|
||||
* report buffer_done to above ALSA layer
|
||||
*/
|
||||
buf_size = intelhaddata->buf_info[buf_id].buf_size;
|
||||
if (stream_type >= HAD_RUNNING_STREAM) {
|
||||
intelhaddata->stream_info.buffer_rendered +=
|
||||
(intr_count * buf_size);
|
||||
stream->period_elapsed(stream->had_substream);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int had_process_buffer_underrun(struct snd_intelhad *intelhaddata)
|
||||
{
|
||||
enum intel_had_aud_buf_type buf_id;
|
||||
struct pcm_stream_info *stream;
|
||||
struct had_stream_data *had_stream;
|
||||
enum had_status_stream stream_type;
|
||||
unsigned long flag_irqs;
|
||||
int drv_status;
|
||||
|
||||
had_stream = &intelhaddata->stream_data;
|
||||
stream = &intelhaddata->stream_info;
|
||||
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
buf_id = intelhaddata->curr_buf;
|
||||
stream_type = had_stream->stream_type;
|
||||
intelhaddata->buff_done = buf_id;
|
||||
drv_status = intelhaddata->drv_status;
|
||||
if (stream_type == HAD_RUNNING_STREAM)
|
||||
intelhaddata->curr_buf = HAD_BUF_TYPE_A;
|
||||
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
|
||||
pr_debug("Enter:%s buf_id=%d, stream_type=%d\n",
|
||||
__func__, buf_id, stream_type);
|
||||
|
||||
snd_intelhad_handle_underrun(intelhaddata);
|
||||
|
||||
if (drv_status == HAD_DRV_DISCONNECTED) {
|
||||
pr_err("%s:Device already disconnected\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (stream_type == HAD_RUNNING_STREAM) {
|
||||
/* Report UNDERRUN error to above layers */
|
||||
intelhaddata->flag_underrun = 1;
|
||||
stream->period_elapsed(stream->had_substream);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int had_process_hot_plug(struct snd_intelhad *intelhaddata)
|
||||
{
|
||||
enum intel_had_aud_buf_type buf_id;
|
||||
struct snd_pcm_substream *substream;
|
||||
struct had_stream_data *had_stream;
|
||||
unsigned long flag_irqs;
|
||||
|
||||
pr_debug("Enter:%s\n", __func__);
|
||||
|
||||
substream = intelhaddata->stream_info.had_substream;
|
||||
had_stream = &intelhaddata->stream_data;
|
||||
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
if (intelhaddata->drv_status == HAD_DRV_CONNECTED) {
|
||||
pr_debug("Device already connected\n");
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
return 0;
|
||||
}
|
||||
buf_id = intelhaddata->curr_buf;
|
||||
intelhaddata->buff_done = buf_id;
|
||||
intelhaddata->drv_status = HAD_DRV_CONNECTED;
|
||||
pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_CONNECTED\n",
|
||||
__func__, __LINE__);
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
|
||||
pr_debug("Processing HOT_PLUG, buf_id = %d\n", buf_id);
|
||||
|
||||
/* Safety check */
|
||||
if (substream) {
|
||||
pr_debug("There should not be active PB from ALSA\n");
|
||||
pr_debug("Signifies, cable is plugged-in even before\n");
|
||||
pr_debug("processing snd_pcm_disconnect\n");
|
||||
/* Set runtime->state to hw_params done */
|
||||
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
|
||||
}
|
||||
|
||||
had_build_channel_allocation_map(intelhaddata);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int had_process_hot_unplug(struct snd_intelhad *intelhaddata)
|
||||
{
|
||||
enum intel_had_aud_buf_type buf_id;
|
||||
struct had_stream_data *had_stream;
|
||||
unsigned long flag_irqs;
|
||||
|
||||
pr_debug("Enter:%s\n", __func__);
|
||||
|
||||
had_stream = &intelhaddata->stream_data;
|
||||
buf_id = intelhaddata->curr_buf;
|
||||
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
|
||||
if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
|
||||
pr_debug("Device already disconnected\n");
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
return 0;
|
||||
|
||||
} else {
|
||||
/* Disable Audio */
|
||||
snd_intelhad_enable_audio_int(intelhaddata, false);
|
||||
snd_intelhad_enable_audio(intelhaddata, false);
|
||||
}
|
||||
|
||||
intelhaddata->drv_status = HAD_DRV_DISCONNECTED;
|
||||
pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_DISCONNECTED\n",
|
||||
__func__, __LINE__);
|
||||
|
||||
/* Report to above ALSA layer */
|
||||
if (intelhaddata->stream_info.had_substream != NULL) {
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
pr_debug("%s: unlock -> sending pcm_stop -> lock\n", __func__);
|
||||
snd_pcm_stop(intelhaddata->stream_info.had_substream,
|
||||
SNDRV_PCM_STATE_SETUP);
|
||||
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
|
||||
}
|
||||
|
||||
had_stream->stream_type = HAD_INIT;
|
||||
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
|
||||
kfree(intelhaddata->chmap->chmap);
|
||||
intelhaddata->chmap->chmap = NULL;
|
||||
intelhaddata->audio_reg_base = NULL;
|
||||
pr_debug("%s: unlocked -> returned\n", __func__);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue