From patchwork Mon May 17 10:31:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 12261547 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2BB9C433ED for ; Mon, 17 May 2021 10:52:41 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 558C5611CA for ; 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Mon, 17 May 2021 12:48:12 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 inva020.eu-rdc02.nxp.com 0C2E21A0A01 Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id A1987402D9; Mon, 17 May 2021 18:48:02 +0800 (+08) From: Shengjiu Wang To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, linux-imx@nxp.com, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, robh+dt@kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 1/2] ASoC: dt-bindings: imx-card: Add binding doc for imx sound card Date: Mon, 17 May 2021 18:31:27 +0800 Message-Id: <1621247488-21412-1-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210517_034824_565031_4748CAE0 X-CRM114-Status: GOOD ( 16.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Imx-card is a new added machine driver for supporting ak4458/ak5558/ak5552/ak4497 codec on i.MX platforms. But these DAC/ADCs are not only supported codecs. This machine driver is designed to be a more common machine driver for i.MX platform, it can support widely cpu dai interface and codec dai interface. Signed-off-by: Shengjiu Wang Reviewed-by: Rob Herring --- changes in v3: - use a generic compatible string as Rob's comments. - change the file name changes in v2: - update doc accoring to Rob's comment, use the common porperties. .../bindings/sound/imx-audio-card.yaml | 122 ++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-card.yaml diff --git a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml new file mode 100644 index 000000000000..d1816dd061cf --- /dev/null +++ b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml @@ -0,0 +1,122 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/imx-audio-card.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX audio sound card. + +maintainers: + - Shengjiu Wang + +properties: + compatible: + enum: + - fsl,imx-audio-card + + model: + $ref: /schemas/types.yaml#/definitions/string + description: User specified audio sound card name + + audio-routing: + $ref: /schemas/types.yaml#/definitions/non-unique-string-array + description: + A list of the connections between audio components. Each entry is a + pair of strings, the first being the connection's sink, the second + being the connection's source. Valid names could be power supplies, + MicBias of codec and the jacks on the board. + +patternProperties: + ".*-dai-link$": + description: + Each subnode represents a dai link. Subnodes of each dai links would be + cpu/codec dais. + + type: object + + properties: + link-name: + description: Indicates dai-link name and PCM stream name. + $ref: /schemas/types.yaml#/definitions/string + maxItems: 1 + + format: + description: audio format. + items: + enum: + - i2s + - dsp_b + + dai-tdm-slot-num: + description: see tdm-slot.txt. + $ref: /schemas/types.yaml#/definitions/uint32 + + dai-tdm-slot-width: + description: see tdm-slot.txt. + $ref: /schemas/types.yaml#/definitions/uint32 + + cpu: + description: Holds subnode which indicates cpu dai. + type: object + properties: + sound-dai: true + + codec: + description: Holds subnode which indicates codec dai. + type: object + properties: + sound-dai: true + + fsl,mclk-equal-bclk: + description: Indicates mclk can be equal to bclk, especially for sai interface + $ref: /schemas/types.yaml#/definitions/flag + + required: + - link-name + - cpu + + additionalProperties: false + +required: + - compatible + - model + +additionalProperties: false + +examples: + - | + sound-ak4458 { + compatible = "fsl,imx-audio-card"; + model = "ak4458-audio"; + pri-dai-link { + link-name = "akcodec"; + format = "i2s"; + fsl,mclk-equal-bclk; + cpu { + sound-dai = <&sai1>; + }; + codec { + sound-dai = <&ak4458_1>, <&ak4458_2>; + }; + }; + fe-dai-link { + link-name = "HiFi-ASRC-FE"; + format = "i2s"; + cpu { + sound-dai = <&easrc>; + }; + }; + be-dai-link { + link-name = "HiFi-ASRC-BE"; + format = "dsp_b"; + dai-tdm-slot-num = <8>; + dai-tdm-slot-width = <32>; + fsl,mclk-equal-bclk; + cpu { + sound-dai = <&sai1>; + }; + codec { + sound-dai = <&ak4458_1>, <&ak4458_2>; + }; + }; + }; From patchwork Mon May 17 10:31:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 12261549 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 756F4C433B4 for ; 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b=EG7JdfUytShM1PjoHXVODrGAWQJjaUOyHcqYIrxb6D/LNJku64niFwZwLZNGu5nyX lqjcEZ+MiI9UJLg5+r3bAWi1365HD9HpdCn341vjWkPon1EW7fakBZMUukY6JqYv2h rJQmTHx5z+IYMGDyPeRraza7JmGYFVvBP7ZsYXgwFMApM7oV3Ceo9T1LQCPmlmNoFs SGZri9otZjPeMy2QpriOfIy8MGfU99FQY8NmbevkZ1eEoX4cvDMhvLpETACeXDu/Xi 5HpftkI9L2S+KV+cd10ILrKiFdM65zyiL9MREAQ5XE5iZ/mK2QD9BNRLscsuVl5BLk cQdFPdnKgvS9g== Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id CBA95201811; Mon, 17 May 2021 12:48:12 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 inva021.eu-rdc02.nxp.com CBA95201811 Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 2510540328; Mon, 17 May 2021 18:48:04 +0800 (+08) From: Shengjiu Wang To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, linux-imx@nxp.com, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, robh+dt@kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 2/2] ASoC: imx-card: Add imx-card machine driver Date: Mon, 17 May 2021 18:31:28 +0800 Message-Id: <1621247488-21412-2-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1621247488-21412-1-git-send-email-shengjiu.wang@nxp.com> References: <1621247488-21412-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210517_034825_719957_B6A22BA1 X-CRM114-Status: GOOD ( 27.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add machine driver for i.MX boards, which supports AK4458/AK5558/AK4497/AK5552 DAC/ADC attached to SAI interface currently, but these DAC/ADCs are not only supported codecs. This machine driver is designed to be a more common machine driver for i.MX platform, it can support widely cpu dai interface and codec dai interface. Signed-off-by: Shengjiu Wang Signed-off-by: Mihai Serban Signed-off-by: Cosmin-Gabriel Samoila Signed-off-by: Viorel Suman Signed-off-by: Daniel Baluta Signed-off-by: Adrian Alonso --- changes in v3: - update the code according to the change of binding doc - change the file name. changes in v2: - update the code according to the change of binding doc sound/soc/fsl/Kconfig | 13 + sound/soc/fsl/Makefile | 2 + sound/soc/fsl/imx-card.c | 844 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 859 insertions(+) create mode 100644 sound/soc/fsl/imx-card.c diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 0917d65d6921..88542b270091 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -350,6 +350,19 @@ config SND_SOC_IMX_RPMSG Say Y if you want to add support for SoC audio on an i.MX board with a rpmsg devices. +config SND_SOC_IMX_CARD + tristate "SoC Audio Graph Sound Card support for i.MX boards" + depends on OF && I2C + select SND_SOC_AK4458 + select SND_SOC_AK5558 + select SND_SOC_IMX_PCM_DMA + select SND_SOC_FSL_SAI + select SND_SIMPLE_CARD_UTILS + help + This option enables audio sound card support for i.MX boards + with OF-graph DT bindings. + It also support DPCM of single CPU multi Codec ststem. + endif # SND_IMX_SOC endmenu diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index f146ce464acd..b54beb1a66fa 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -71,6 +71,7 @@ snd-soc-imx-spdif-objs := imx-spdif.o snd-soc-imx-audmix-objs := imx-audmix.o snd-soc-imx-hdmi-objs := imx-hdmi.o snd-soc-imx-rpmsg-objs := imx-rpmsg.o +snd-soc-imx-card-objs := imx-card.o obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_IMX_ES8328) += snd-soc-imx-es8328.o @@ -79,3 +80,4 @@ obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o obj-$(CONFIG_SND_SOC_IMX_AUDMIX) += snd-soc-imx-audmix.o obj-$(CONFIG_SND_SOC_IMX_HDMI) += snd-soc-imx-hdmi.o obj-$(CONFIG_SND_SOC_IMX_RPMSG) += snd-soc-imx-rpmsg.o +obj-$(CONFIG_SND_SOC_IMX_CARD) += snd-soc-imx-card.o diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c new file mode 100644 index 000000000000..ab424735bbfe --- /dev/null +++ b/sound/soc/fsl/imx-card.c @@ -0,0 +1,844 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright 2017-2021 NXP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "fsl_sai.h" + +enum codec_type { + CODEC_DUMMY = 0, + CODEC_AK5558 = 1, + CODEC_AK4458, + CODEC_AK4497, + CODEC_AK5552, +}; + +/* + * Mapping LRCK fs and frame width, table 3 & 4 in datasheet + * @rmin: min rate + * @rmax: max rate + * @wmin: min frame ratio + * @wmax: max frame ratio + */ +struct imx_akcodec_fs_mul { + unsigned int rmin; + unsigned int rmax; + unsigned int wmin; + unsigned int wmax; +}; + +/* + * Mapping TDM mode and frame width + */ +struct imx_akcodec_tdm_fs_mul { + unsigned int min; + unsigned int max; + unsigned int mul; +}; + +/* + * struct imx_card_plat_data - specific info for codecs + * + * @fs_mul: ratio of mclk/fs for normal mode + * @tdm_fs_mul: ratio of mclk/fs for tdm mode + * @support_rates: supported sample rate + * @support_tdm_rates: supported sample rate for tdm mode + * @support_channels: supported channels + * @support_tdm_channels: supported channels for tdm mode + * @num_fs_mul: ARRAY_SIZE of fs_mul + * @num_tdm_fs_mul: ARRAY_SIZE of tdm_fs_mul + * @num_rates: ARRAY_SIZE of support_rates + * @num_tdm_rates: ARRAY_SIZE of support_tdm_rates + * @num_channels: ARRAY_SIZE of support_channels + * @num_tdm_channels: ARRAY_SIZE of support_tdm_channels + * @type: codec type + */ +struct imx_card_plat_data { + struct imx_akcodec_fs_mul *fs_mul; + struct imx_akcodec_tdm_fs_mul *tdm_fs_mul; + const u32 *support_rates; + const u32 *support_tdm_rates; + const u32 *support_channels; + const u32 *support_tdm_channels; + unsigned int num_fs_mul; + unsigned int num_tdm_fs_mul; + unsigned int num_rates; + unsigned int num_tdm_rates; + unsigned int num_channels; + unsigned int num_tdm_channels; + unsigned int num_codecs; + enum codec_type type; +}; + +/* + * struct dai_link_data - specific info for dai link + * + * @slots: slot number + * @slot_width: slot width value + * @cpu_sysclk_id: sysclk id for cpu dai + * @one2one_ratio: true if mclk equal to bclk + */ +struct dai_link_data { + unsigned int slots; + unsigned int slot_width; + unsigned int cpu_sysclk_id; + bool one2one_ratio; +}; + +/* + * struct imx_card_data - platform device data + * + * @plat_data: pointer of imx_card_plat_data + * @dapm_routes: pointer of dapm_routes + * @link_data: private data for dai link + * @card: card instance + * @num_dapm_routes: number of dapm_routes + * @asrc_rate: asrc rates + * @asrc_format: asrc format + */ +struct imx_card_data { + struct imx_card_plat_data *plat_data; + struct snd_soc_dapm_route *dapm_routes; + struct dai_link_data *link_data; + struct snd_soc_card card; + int num_dapm_routes; + u32 asrc_rate; + u32 asrc_format; +}; + +struct imx_akcodec_fs_mul ak4458_fs_mul[] = { + /* Normal, < 32kHz */ + { .rmin = 8000, .rmax = 24000, .wmin = 1024, .wmax = 1024, }, + /* Normal, 32kHz */ + { .rmin = 32000, .rmax = 32000, .wmin = 256, .wmax = 1024, }, + /* Normal */ + { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 768, }, + /* Double */ + { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 512, }, + /* Quad */ + { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 256, }, + /* Oct */ + { .rmin = 352800, .rmax = 384000, .wmin = 32, .wmax = 128, }, + /* Hex */ + { .rmin = 705600, .rmax = 768000, .wmin = 16, .wmax = 64, }, +}; + +struct imx_akcodec_tdm_fs_mul ak4458_tdm_fs_mul[] = { + /* + * Table 13 - Audio Interface Format + * For TDM mode, MCLK should is set to + * obtained from 2 * slots * slot_width + */ + { .min = 128, .max = 128, .mul = 256 }, /* TDM128 */ + { .min = 256, .max = 256, .mul = 512 }, /* TDM256 */ + { .min = 512, .max = 512, .mul = 1024 }, /* TDM512 */ +}; + +struct imx_akcodec_fs_mul ak4497_fs_mul[] = { + /** + * Table 7 - mapping multiplier and speed mode + * Tables 8 & 9 - mapping speed mode and LRCK fs + */ + { .rmin = 8000, .rmax = 32000, .wmin = 1024, .wmax = 1024, }, /* Normal, <= 32kHz */ + { .rmin = 44100, .rmax = 48000, .wmin = 512, .wmax = 512, }, /* Normal */ + { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, /* Double */ + { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, /* Quad */ + { .rmin = 352800, .rmax = 384000, .wmin = 128, .wmax = 128, }, /* Oct */ + { .rmin = 705600, .rmax = 768000, .wmin = 64, .wmax = 64, }, /* Hex */ +}; + +/* + * Auto MCLK selection based on LRCK for Normal Mode + * (Table 4 from datasheet) + */ +struct imx_akcodec_fs_mul ak5558_fs_mul[] = { + { .rmin = 8000, .rmax = 32000, .wmin = 1024, .wmax = 1024, }, + { .rmin = 44100, .rmax = 48000, .wmin = 512, .wmax = 512, }, + { .rmin = 88200, .rmax = 96000, .wmin = 256, .wmax = 256, }, + { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 128, }, + { .rmin = 352800, .rmax = 384000, .wmin = 64, .wmax = 64, }, + { .rmin = 705600, .rmax = 768000, .wmin = 32, .wmax = 32, }, +}; + +/* + * MCLK and BCLK selection based on TDM mode + * because of SAI we also add the restriction: MCLK >= 2 * BCLK + * (Table 9 from datasheet) + */ +struct imx_akcodec_tdm_fs_mul ak5558_tdm_fs_mul[] = { + { .min = 128, .max = 128, .mul = 256 }, + { .min = 256, .max = 256, .mul = 512 }, + { .min = 512, .max = 512, .mul = 1024 }, +}; + +static const u32 akcodec_rates[] = { + 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200, + 96000, 176400, 192000, 352800, 384000, 705600, 768000, +}; + +static const u32 akcodec_tdm_rates[] = { + 8000, 16000, 32000, 48000, 96000, +}; + +static const u32 ak4458_channels[] = { + 1, 2, 4, 6, 8, 10, 12, 14, 16, +}; + +static const u32 ak4458_tdm_channels[] = { + 1, 2, 3, 4, 5, 6, 7, 8, 16, +}; + +static const u32 ak5558_channels[] = { + 1, 2, 4, 6, 8, +}; + +static const u32 ak5558_tdm_channels[] = { + 1, 2, 3, 4, 5, 6, 7, 8, +}; + +static bool format_is_dsd(struct snd_pcm_hw_params *params) +{ + snd_pcm_format_t format = params_format(params); + + switch (format) { + case SNDRV_PCM_FORMAT_DSD_U8: + case SNDRV_PCM_FORMAT_DSD_U16_LE: + case SNDRV_PCM_FORMAT_DSD_U16_BE: + case SNDRV_PCM_FORMAT_DSD_U32_LE: + case SNDRV_PCM_FORMAT_DSD_U32_BE: + return true; + default: + return false; + } +} + +static bool format_is_tdm(struct dai_link_data *link_data) +{ + if (link_data->slots > 2) + return true; + else + return false; +} + +static bool codec_is_akcodec(unsigned int type) +{ + switch (type) { + case CODEC_AK4458: + case CODEC_AK4497: + case CODEC_AK5558: + case CODEC_AK5552: + return true; + default: + break; + } + return false; +} + +static unsigned long akcodec_get_mclk_rate(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct imx_card_data *data = snd_soc_card_get_drvdata(rtd->card); + const struct imx_card_plat_data *plat_data = data->plat_data; + struct dai_link_data *link_data = &data->link_data[rtd->num]; + unsigned int width = link_data->slots * link_data->slot_width; + unsigned int rate = params_rate(params); + int i; + + if (format_is_tdm(link_data)) { + for (i = 0; i < plat_data->num_tdm_fs_mul; i++) { + /* min = max = slots * slots_width */ + if (width != plat_data->tdm_fs_mul[i].min) + continue; + return rate * plat_data->tdm_fs_mul[i].mul; + } + } else { + for (i = 0; i < plat_data->num_fs_mul; i++) { + if (rate >= plat_data->fs_mul[i].rmin && + rate <= plat_data->fs_mul[i].rmax) { + width = max(width, plat_data->fs_mul[i].wmin); + width = min(width, plat_data->fs_mul[i].wmax); + + /* Adjust SAI bclk:mclk ratio */ + width *= link_data->one2one_ratio ? 1 : 2; + + return rate * width; + } + } + } + + /* Let DAI manage clk frequency by default */ + return 0; +} + +static int imx_aif_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 = asoc_rtd_to_cpu(rtd, 0); + struct snd_soc_card *card = rtd->card; + struct imx_card_data *data = snd_soc_card_get_drvdata(card); + struct dai_link_data *link_data = &data->link_data[rtd->num]; + struct imx_card_plat_data *plat_data = data->plat_data; + struct device *dev = card->dev; + struct snd_soc_dai *codec_dai; + unsigned long mclk_freq; + unsigned int fmt = rtd->dai_link->dai_fmt; + unsigned int slots, slot_width; + int ret, i; + + slots = link_data->slots; + slot_width = link_data->slot_width; + + if (!format_is_tdm(link_data)) { + if (format_is_dsd(params)) { + slots = 1; + slot_width = params_width(params); + fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | + SND_SOC_DAIFMT_PDM; + } else { + slots = 2; + slot_width = params_physical_width(params); + fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | + SND_SOC_DAIFMT_I2S; + } + } + + ret = snd_soc_dai_set_fmt(cpu_dai, fmt); + if (ret && ret != -ENOTSUPP) { + dev_err(dev, "failed to set cpu dai fmt: %d\n", ret); + return ret; + } + ret = snd_soc_dai_set_tdm_slot(cpu_dai, + BIT(slots) - 1, + BIT(slots) - 1, + slots, slot_width); + if (ret && ret != -ENOTSUPP) { + dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); + return ret; + } + + for_each_rtd_codec_dais(rtd, i, codec_dai) { + ret = snd_soc_dai_set_fmt(codec_dai, fmt); + if (ret && ret != -ENOTSUPP) { + dev_err(dev, "failed to set codec dai[%d] fmt: %d\n", i, ret); + return ret; + } + + ret = snd_soc_dai_set_tdm_slot(codec_dai, + BIT(slots) - 1, + BIT(slots) - 1, + slots, slot_width); + if (ret && ret != -ENOTSUPP) { + dev_err(dev, "failed to set codec dai[%d] tdm slot: %d\n", i, ret); + return ret; + } + } + + /* Set MCLK freq */ + if (codec_is_akcodec(plat_data->type)) + mclk_freq = akcodec_get_mclk_rate(substream, params); + else + mclk_freq = params_rate(params) * slots * slot_width; + /* Use the maximum freq from DSD512 (512*44100 = 22579200) */ + if (format_is_dsd(params)) + mclk_freq = 22579200; + + ret = snd_soc_dai_set_sysclk(cpu_dai, link_data->cpu_sysclk_id, mclk_freq, + SND_SOC_CLOCK_OUT); + if (ret && ret != -ENOTSUPP) { + dev_err(dev, "failed to set cpui dai mclk1 rate (%lu): %d\n", mclk_freq, ret); + return ret; + } + + return 0; +} + +static int ak5558_hw_rule_rate(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *r) +{ + struct dai_link_data *link_data = r->private; + struct snd_interval t = { .min = 8000, .max = 8000, }; + unsigned long mclk_freq; + unsigned int fs; + int i; + + fs = hw_param_interval(p, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min; + fs *= link_data->slots; + + /* Identify maximum supported rate */ + for (i = 0; i < ARRAY_SIZE(akcodec_rates); i++) { + mclk_freq = fs * akcodec_rates[i]; + /* Adjust SAI bclk:mclk ratio */ + mclk_freq *= link_data->one2one_ratio ? 1 : 2; + + /* Skip rates for which MCLK is beyond supported value */ + if (mclk_freq > 36864000) + continue; + + if (t.max < akcodec_rates[i]) + t.max = akcodec_rates[i]; + } + + return snd_interval_refine(hw_param_interval(p, r->var), &t); +} + +static int imx_aif_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct imx_card_data *data = snd_soc_card_get_drvdata(card); + struct dai_link_data *link_data = &data->link_data[rtd->num]; + static struct snd_pcm_hw_constraint_list constraint_rates; + static struct snd_pcm_hw_constraint_list constraint_channels; + int ret = 0; + + if (format_is_tdm(link_data)) { + constraint_channels.list = data->plat_data->support_tdm_channels; + constraint_channels.count = data->plat_data->num_tdm_channels; + constraint_rates.list = data->plat_data->support_tdm_rates; + constraint_rates.count = data->plat_data->num_tdm_rates; + } else { + constraint_channels.list = data->plat_data->support_channels; + constraint_channels.count = data->plat_data->num_channels; + constraint_rates.list = data->plat_data->support_rates; + constraint_rates.count = data->plat_data->num_rates; + } + + if (constraint_channels.count) { + ret = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraint_channels); + if (ret) + return ret; + } + + if (constraint_rates.count) { + ret = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &constraint_rates); + if (ret) + return ret; + } + + if (data->plat_data->type == CODEC_AK5558) + ret = snd_pcm_hw_rule_add(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + ak5558_hw_rule_rate, link_data, + SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1); + + return ret; +} + +static struct snd_soc_ops imx_aif_ops = { + .hw_params = imx_aif_hw_params, + .startup = imx_aif_startup, +}; + +static struct snd_soc_ops imx_aif_ops_be = { + .hw_params = imx_aif_hw_params, +}; + +static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_card *card = rtd->card; + struct imx_card_data *data = snd_soc_card_get_drvdata(card); + struct snd_interval *rate; + struct snd_mask *mask; + + rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + rate->max = data->asrc_rate; + rate->min = data->asrc_rate; + + mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + snd_mask_none(mask); + snd_mask_set(mask, data->asrc_format); + + return 0; +} + +static int imx_card_parse_of(struct imx_card_data *data) +{ + struct imx_card_plat_data *plat_data = data->plat_data; + struct snd_soc_card *card = &data->card; + struct snd_soc_dai_link_component *dlc; + struct device_node *platform = NULL; + struct device_node *codec = NULL; + struct device_node *cpu = NULL; + struct device_node *np; + struct device *dev = card->dev; + struct snd_soc_dai_link *link; + struct dai_link_data *link_data; + struct of_phandle_args args; + int ret, num_links; + u32 width; + + ret = snd_soc_of_parse_card_name(card, "model"); + if (ret) { + dev_err(dev, "Error parsing card name: %d\n", ret); + return ret; + } + + /* DAPM routes */ + if (of_property_read_bool(dev->of_node, "audio-routing")) { + ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); + if (ret) + return ret; + } + + /* Populate links */ + num_links = of_get_child_count(dev->of_node); + + /* Allocate the DAI link array */ + card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); + if (!card->dai_link) + return -ENOMEM; + + data->link_data = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); + if (!data->link_data) + return -ENOMEM; + + card->num_links = num_links; + link = card->dai_link; + link_data = data->link_data; + + for_each_child_of_node(dev->of_node, np) { + dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL); + if (!dlc) { + ret = -ENOMEM; + goto err_put_np; + } + + link->cpus = &dlc[0]; + link->platforms = &dlc[1]; + + link->num_cpus = 1; + link->num_platforms = 1; + + ret = of_property_read_string(np, "link-name", &link->name); + if (ret) { + dev_err(card->dev, "error getting codec dai_link name\n"); + goto err_put_np; + } + + cpu = of_get_child_by_name(np, "cpu"); + if (!cpu) { + dev_err(dev, "%s: Can't find cpu DT node\n", link->name); + ret = -EINVAL; + goto err; + } + + ret = of_parse_phandle_with_args(cpu, "sound-dai", + "#sound-dai-cells", 0, &args); + if (ret) { + dev_err(card->dev, "%s: error getting cpu phandle\n", link->name); + goto err; + } + + if (of_node_name_eq(args.np, "sai")) { + /* sai sysclk id */ + link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1; + + /* sai may support mclk/bclk = 1 */ + if (of_find_property(np, "fsl,mclk-equal-bclk", NULL)) + link_data->one2one_ratio = true; + } + + link->cpus->of_node = args.np; + link->platforms->of_node = link->cpus->of_node; + link->id = args.args[0]; + + ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(card->dev, "%s: error getting cpu dai name: %d\n", + link->name, ret); + goto err; + } + + codec = of_get_child_by_name(np, "codec"); + if (codec) { + ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); + if (ret < 0) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "%s: codec dai not found: %d\n", + link->name, ret); + goto err; + } + + plat_data->num_codecs = link->num_codecs; + + /* Check the akcodec type */ + if (!strcmp(link->codecs->dai_name, "ak4458-aif")) + plat_data->type = CODEC_AK4458; + else if (!strcmp(link->codecs->dai_name, "ak4497-aif")) + plat_data->type = CODEC_AK4497; + else if (!strcmp(link->codecs->dai_name, "ak5558-aif")) + plat_data->type = CODEC_AK5558; + else if (!strcmp(link->codecs->dai_name, "ak5552-aif")) + plat_data->type = CODEC_AK5552; + + } else { + dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL); + if (!dlc) { + ret = -ENOMEM; + goto err; + } + + link->codecs = dlc; + link->num_codecs = 1; + + link->codecs->dai_name = "snd-soc-dummy-dai"; + link->codecs->name = "snd-soc-dummy"; + } + + if (!strncmp(link->name, "HiFi-ASRC-FE", 12)) { + /* DPCM frontend */ + link->dynamic = 1; + link->dpcm_merged_chan = 1; + + ret = of_property_read_u32(args.np, "fsl,asrc-rate", &data->asrc_rate); + if (ret) { + dev_err(dev, "failed to get output rate\n"); + ret = -EINVAL; + goto err; + } + + ret = of_property_read_u32(args.np, "fsl,asrc-format", &data->asrc_format); + if (ret) { + /* Fallback to old binding; translate to asrc_format */ + ret = of_property_read_u32(args.np, "fsl,asrc-width", &width); + if (ret) { + dev_err(dev, + "failed to decide output format\n"); + goto err; + } + + if (width == 24) + data->asrc_format = SNDRV_PCM_FORMAT_S24_LE; + else + data->asrc_format = SNDRV_PCM_FORMAT_S16_LE; + } + } else if (!strncmp(link->name, "HiFi-ASRC-BE", 12)) { + /* DPCM backend */ + link->no_pcm = 1; + link->platforms->of_node = NULL; + link->platforms->name = "snd-soc-dummy"; + + link->be_hw_params_fixup = be_hw_params_fixup; + link->ops = &imx_aif_ops_be; + } else { + link->ops = &imx_aif_ops; + } + + if (link->no_pcm || link->dynamic) + snd_soc_dai_link_set_capabilities(link); + + /* Get dai fmt */ + ret = asoc_simple_parse_daifmt(dev, np, codec, + NULL, &link->dai_fmt); + if (ret) + link->dai_fmt = SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS | + SND_SOC_DAIFMT_I2S; + + /* Get tdm slot */ + snd_soc_of_parse_tdm_slot(np, NULL, NULL, + &link_data->slots, + &link_data->slot_width); + /* default value */ + if (!link_data->slots) + link_data->slots = 2; + + if (!link_data->slot_width) + link_data->slot_width = 32; + + link->ignore_pmdown_time = 1; + link->stream_name = link->name; + link++; + link_data++; + + of_node_put(cpu); + of_node_put(codec); + of_node_put(platform); + } + + return 0; +err: + of_node_put(cpu); + of_node_put(codec); + of_node_put(platform); +err_put_np: + of_node_put(np); + return ret; +} + +static int imx_card_probe(struct platform_device *pdev) +{ + struct snd_soc_dai_link *link_be = NULL, *link; + struct imx_card_plat_data *plat_data; + struct imx_card_data *data; + int ret, i; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + plat_data = devm_kzalloc(&pdev->dev, sizeof(*plat_data), GFP_KERNEL); + if (!plat_data) + return -ENOMEM; + + data->plat_data = plat_data; + data->card.dev = &pdev->dev; + + dev_set_drvdata(&pdev->dev, &data->card); + snd_soc_card_set_drvdata(&data->card, data); + ret = imx_card_parse_of(data); + if (ret) + return ret; + + data->num_dapm_routes = plat_data->num_codecs + 1; + data->dapm_routes = devm_kcalloc(&pdev->dev, data->num_dapm_routes, + sizeof(struct snd_soc_dapm_route), + GFP_KERNEL); + if (!data->dapm_routes) + return -ENOMEM; + + /* configure the dapm routes */ + switch (plat_data->type) { + case CODEC_AK4458: + case CODEC_AK4497: + if (plat_data->num_codecs == 1) { + data->dapm_routes[0].sink = "Playback"; + data->dapm_routes[0].source = "CPU-Playback"; + i = 1; + } else { + for (i = 0; i < plat_data->num_codecs; i++) { + data->dapm_routes[i].sink = + devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", + i + 1, "Playback"); + data->dapm_routes[i].source = "CPU-Playback"; + } + } + data->dapm_routes[i].sink = "CPU-Playback"; + data->dapm_routes[i].source = "ASRC-Playback"; + break; + case CODEC_AK5558: + case CODEC_AK5552: + if (plat_data->num_codecs == 1) { + data->dapm_routes[0].sink = "CPU-Capture"; + data->dapm_routes[0].source = "Capture"; + i = 1; + } else { + for (i = 0; i < plat_data->num_codecs; i++) { + data->dapm_routes[i].source = + devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s", + i + 1, "Capture"); + data->dapm_routes[i].sink = "CPU-Capture"; + } + } + data->dapm_routes[i].sink = "ASRC-Capture"; + data->dapm_routes[i].source = "CPU-Capture"; + break; + default: + break; + } + + /* default platform data for akcodecs */ + if (codec_is_akcodec(plat_data->type)) { + plat_data->support_rates = akcodec_rates; + plat_data->num_rates = ARRAY_SIZE(akcodec_rates); + plat_data->support_tdm_rates = akcodec_tdm_rates; + plat_data->num_tdm_rates = ARRAY_SIZE(akcodec_tdm_rates); + + switch (plat_data->type) { + case CODEC_AK4458: + plat_data->fs_mul = ak4458_fs_mul; + plat_data->num_fs_mul = ARRAY_SIZE(ak4458_fs_mul); + plat_data->tdm_fs_mul = ak4458_tdm_fs_mul; + plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak4458_tdm_fs_mul); + plat_data->support_channels = ak4458_channels; + plat_data->num_channels = ARRAY_SIZE(ak4458_channels); + plat_data->support_tdm_channels = ak4458_tdm_channels; + plat_data->num_tdm_channels = ARRAY_SIZE(ak4458_tdm_channels); + break; + case CODEC_AK4497: + plat_data->fs_mul = ak4497_fs_mul; + plat_data->num_fs_mul = ARRAY_SIZE(ak4497_fs_mul); + plat_data->support_channels = ak4458_channels; + plat_data->num_channels = ARRAY_SIZE(ak4458_channels); + break; + case CODEC_AK5558: + case CODEC_AK5552: + plat_data->fs_mul = ak5558_fs_mul; + plat_data->num_fs_mul = ARRAY_SIZE(ak5558_fs_mul); + plat_data->tdm_fs_mul = ak5558_tdm_fs_mul; + plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak5558_tdm_fs_mul); + plat_data->support_channels = ak5558_channels; + plat_data->num_channels = ARRAY_SIZE(ak5558_channels); + plat_data->support_tdm_channels = ak5558_tdm_channels; + plat_data->num_tdm_channels = ARRAY_SIZE(ak5558_tdm_channels); + break; + default: + break; + } + } + + /* with asrc as front end */ + if (data->card.num_links == 3) { + data->card.dapm_routes = data->dapm_routes; + data->card.num_dapm_routes = data->num_dapm_routes; + for_each_card_prelinks(&data->card, i, link) { + if (link->no_pcm == 1) + link_be = link; + } + for_each_card_prelinks(&data->card, i, link) { + if (link->dynamic == 1 && link_be) { + link->dpcm_playback = link_be->dpcm_playback; + link->dpcm_capture = link_be->dpcm_capture; + } + } + } + + ret = devm_snd_soc_register_card(&pdev->dev, &data->card); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + return ret; + } + + return 0; +} + +static const struct of_device_id imx_card_dt_ids[] = { + { .compatible = "fsl,imx-audio-card", }, + { }, +}; +MODULE_DEVICE_TABLE(of, imx_card_dt_ids); + +static struct platform_driver imx_card_driver = { + .driver = { + .name = "imx-card", + .pm = &snd_soc_pm_ops, + .of_match_table = imx_card_dt_ids, + }, + .probe = imx_card_probe, +}; +module_platform_driver(imx_card_driver); + +MODULE_DESCRIPTION("Freescale i.MX ASoC Machine Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:imx-card");