ASoC: qcom: sc7180: Add support for audio over DP (2ad63dc8) · Commits · 戴 / test

sound/soc/qcom/lpass-sc7180.c

+102 −14

Original line number	Diff line number	Diff line
		@@ -60,14 +60,38 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = {
		.probe = &asoc_qcom_lpass_cpu_dai_probe,
		.ops = &asoc_qcom_lpass_cpu_dai_ops,
		},
		[LPASS_DP_RX] = {
		.id = LPASS_DP_RX,
		.name = "Hdmi",
		.playback = {
		.stream_name = "Hdmi Playback",
		.formats = SNDRV_PCM_FMTBIT_S24,
		.rates = SNDRV_PCM_RATE_48000,
		.rate_min = 48000,
		.rate_max = 48000,
		.channels_min = 2,
		.channels_max = 2,
		},
		.ops = &asoc_qcom_lpass_hdmi_dai_ops,
		},
		};

		static int sc7180_lpass_alloc_dma_channel(struct lpass_data *drvdata,
		int direction)
		int direction, unsigned int dai_id)
		{
		struct lpass_variant *v = drvdata->variant;
		int chan = 0;

		if (dai_id == LPASS_DP_RX) {
		if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
		chan = find_first_zero_bit(&drvdata->hdmi_dma_ch_bit_map,
		v->hdmi_rdma_channels);

		if (chan >= v->hdmi_rdma_channels)
		return -EBUSY;
		}
		set_bit(chan, &drvdata->hdmi_dma_ch_bit_map);
		} else {
		if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
		chan = find_first_zero_bit(&drvdata->dma_ch_bit_map,
		v->rdma_channels);
		@@ -85,12 +109,15 @@ static int sc7180_lpass_alloc_dma_channel(struct lpass_data *drvdata,
		}

		set_bit(chan, &drvdata->dma_ch_bit_map);

		}
		return chan;
		}

		static int sc7180_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
		static int sc7180_lpass_free_dma_channel(struct lpass_data *drvdata, int chan, unsigned int dai_id)
		{
		if (dai_id == LPASS_DP_RX)
		clear_bit(chan, &drvdata->hdmi_dma_ch_bit_map);
		else
		clear_bit(chan, &drvdata->dma_ch_bit_map);

		return 0;
		@@ -144,6 +171,9 @@ static struct lpass_variant sc7180_data = {
		.rdma_reg_base = 0xC000,
		.rdma_reg_stride = 0x1000,
		.rdma_channels = 5,
		.hdmi_rdma_reg_base = 0x64000,
		.hdmi_rdma_reg_stride = 0x1000,
		.hdmi_rdma_channels = 4,
		.dmactl_audif_start = 1,
		.wrdma_reg_base = 0x18000,
		.wrdma_reg_stride = 0x1000,
		@@ -174,6 +204,64 @@ static struct lpass_variant sc7180_data = {
		.wrdma_fifowm = REG_FIELD_ID(0x18000, 1, 5, 4, 0x1000),
		.wrdma_enable = REG_FIELD_ID(0x18000, 0, 0, 4, 0x1000),

		.hdmi_tx_ctl_addr = 0x1000,
		.hdmi_legacy_addr = 0x1008,
		.hdmi_vbit_addr = 0x610c0,
		.hdmi_ch_lsb_addr = 0x61048,
		.hdmi_ch_msb_addr = 0x6104c,
		.ch_stride = 0x8,
		.hdmi_parity_addr = 0x61034,
		.hdmi_dmactl_addr = 0x61038,
		.hdmi_dma_stride = 0x4,
		.hdmi_DP_addr = 0x610c8,
		.hdmi_sstream_addr = 0x6101c,
		.hdmi_irq_reg_base = 0x63000,
		.hdmi_irq_ports = 1,

		.hdmi_rdma_dyncclk = REG_FIELD_ID(0x64000, 14, 14, 4, 0x1000),
		.hdmi_rdma_bursten = REG_FIELD_ID(0x64000, 13, 13, 4, 0x1000),
		.hdmi_rdma_burst8 = REG_FIELD_ID(0x64000, 15, 15, 4, 0x1000),
		.hdmi_rdma_burst16 = REG_FIELD_ID(0x64000, 16, 16, 4, 0x1000),
		.hdmi_rdma_dynburst = REG_FIELD_ID(0x64000, 18, 18, 4, 0x1000),
		.hdmi_rdma_wpscnt = REG_FIELD_ID(0x64000, 10, 12, 4, 0x1000),
		.hdmi_rdma_fifowm = REG_FIELD_ID(0x64000, 1, 5, 4, 0x1000),
		.hdmi_rdma_enable = REG_FIELD_ID(0x64000, 0, 0, 4, 0x1000),

		.sstream_en = REG_FIELD(0x6101c, 0, 0),
		.dma_sel = REG_FIELD(0x6101c, 1, 2),
		.auto_bbit_en = REG_FIELD(0x6101c, 3, 3),
		.layout = REG_FIELD(0x6101c, 4, 4),
		.layout_sp = REG_FIELD(0x6101c, 5, 8),
		.set_sp_on_en = REG_FIELD(0x6101c, 10, 10),
		.dp_audio = REG_FIELD(0x6101c, 11, 11),
		.dp_staffing_en = REG_FIELD(0x6101c, 12, 12),
		.dp_sp_b_hw_en = REG_FIELD(0x6101c, 13, 13),

		.mute = REG_FIELD(0x610c8, 0, 0),
		.as_sdp_cc = REG_FIELD(0x610c8, 1, 3),
		.as_sdp_ct = REG_FIELD(0x610c8, 4, 7),
		.aif_db4 = REG_FIELD(0x610c8, 8, 15),
		.frequency = REG_FIELD(0x610c8, 16, 21),
		.mst_index = REG_FIELD(0x610c8, 28, 29),
		.dptx_index = REG_FIELD(0x610c8, 30, 31),

		.soft_reset = REG_FIELD(0x1000, 31, 31),
		.force_reset = REG_FIELD(0x1000, 30, 30),

		.use_hw_chs = REG_FIELD(0x61038, 0, 0),
		.use_hw_usr = REG_FIELD(0x61038, 1, 1),
		.hw_chs_sel = REG_FIELD(0x61038, 2, 4),
		.hw_usr_sel = REG_FIELD(0x61038, 5, 6),

		.replace_vbit = REG_FIELD(0x610c0, 0, 0),
		.vbit_stream = REG_FIELD(0x610c0, 1, 1),

		.legacy_en = REG_FIELD(0x1008, 0, 0),
		.calc_en = REG_FIELD(0x61034, 0, 0),
		.lsb_bits = REG_FIELD(0x61048, 0, 31),
		.msb_bits = REG_FIELD(0x6104c, 0, 31),


		.clk_name = (const char*[]) {
		"pcnoc-sway-clk",
		"audio-core",

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