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Received: from AM0PR04MB7044.eurprd04.prod.outlook.com (2603:10a6:208:191::20) by VI0PR04MB10757.eurprd04.prod.outlook.com (2603:10a6:800:26a::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8137.28; Tue, 12 Nov 2024 10:34:38 +0000 Received: from AM0PR04MB7044.eurprd04.prod.outlook.com ([fe80::7be0:296:768c:e891]) by AM0PR04MB7044.eurprd04.prod.outlook.com ([fe80::7be0:296:768c:e891%6]) with mapi id 15.20.8137.027; Tue, 12 Nov 2024 10:34:38 +0000 From: Shengjiu Wang To: vkoul@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, lgirdwood@gmail.com, broonie@kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [RESEND PATCH v5 2/6] ASoC: fsl_asrc: define functions for memory to memory usage Date: Tue, 12 Nov 2024 18:34:00 +0800 Message-Id: <20241112103404.3565675-3-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20241112103404.3565675-1-shengjiu.wang@nxp.com> References: <20241112103404.3565675-1-shengjiu.wang@nxp.com> X-ClientProxiedBy: SI1PR02CA0008.apcprd02.prod.outlook.com (2603:1096:4:1f7::14) To AM0PR04MB7044.eurprd04.prod.outlook.com (2603:10a6:208:191::20) Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM0PR04MB7044:EE_|VI0PR04MB10757:EE_ X-MS-Office365-Filtering-Correlation-Id: 7fb7ec34-bc3d-4721-1e93-08dd03059be6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|7416014|52116014|376014|38350700014|921020; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7fb7ec34-bc3d-4721-1e93-08dd03059be6 X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB7044.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Nov 2024 10:34:38.6057 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: W4etb7VVCaVD5EbDZmnCt8wToKpfcNHtYb4WqZh/Yu+ahCsOnwdr8+WOhv4HTN6nqkfybf9SqVlg12sp7A2jEQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI0PR04MB10757 ASRC can be used on memory to memory case, define several functions for m2m usage. m2m_prepare: prepare for the start step m2m_start: the start step m2m_unprepare: unprepare for stop step, optional m2m_stop: stop step m2m_check_format: check format is supported or not m2m_calc_out_len: calculate output length according to input length m2m_get_maxburst: burst size for dma m2m_pair_suspend: suspend function of pair, optional. m2m_pair_resume: resume function of pair get_output_fifo_size: get remaining data size in FIFO Signed-off-by: Shengjiu Wang Acked-by: Jaroslav Kysela --- sound/soc/fsl/fsl_asrc.c | 142 ++++++++++++++++++++++++++++++++ sound/soc/fsl/fsl_asrc.h | 2 + sound/soc/fsl/fsl_asrc_common.h | 61 ++++++++++++++ 3 files changed, 205 insertions(+) diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index bd5c46d763c0..471753276209 100644 --- a/sound/soc/fsl/fsl_asrc.c +++ b/sound/soc/fsl/fsl_asrc.c @@ -1063,6 +1063,139 @@ static int fsl_asrc_get_fifo_addr(u8 dir, enum asrc_pair_index index) return REG_ASRDx(dir, index); } +/* Get sample numbers in FIFO */ +static unsigned int fsl_asrc_get_output_fifo_size(struct fsl_asrc_pair *pair) +{ + struct fsl_asrc *asrc = pair->asrc; + enum asrc_pair_index index = pair->index; + u32 val; + + regmap_read(asrc->regmap, REG_ASRFST(index), &val); + + val &= ASRFSTi_OUTPUT_FIFO_MASK; + + return val >> ASRFSTi_OUTPUT_FIFO_SHIFT; +} + +static int fsl_asrc_m2m_prepare(struct fsl_asrc_pair *pair) +{ + struct fsl_asrc_pair_priv *pair_priv = pair->private; + struct fsl_asrc *asrc = pair->asrc; + struct device *dev = &asrc->pdev->dev; + struct asrc_config config; + int ret; + + /* fill config */ + config.pair = pair->index; + config.channel_num = pair->channels; + config.input_sample_rate = pair->rate[IN]; + config.output_sample_rate = pair->rate[OUT]; + config.input_format = pair->sample_format[IN]; + config.output_format = pair->sample_format[OUT]; + config.inclk = INCLK_NONE; + config.outclk = OUTCLK_ASRCK1_CLK; + + pair_priv->config = &config; + ret = fsl_asrc_config_pair(pair, true); + if (ret) { + dev_err(dev, "failed to config pair: %d\n", ret); + return ret; + } + + pair->first_convert = 1; + + return 0; +} + +static int fsl_asrc_m2m_start(struct fsl_asrc_pair *pair) +{ + if (pair->first_convert) { + fsl_asrc_start_pair(pair); + pair->first_convert = 0; + } + /* + * Clear DMA request during the stall state of ASRC: + * During STALL state, the remaining in input fifo would never be + * smaller than the input threshold while the output fifo would not + * be bigger than output one. Thus the DMA request would be cleared. + */ + fsl_asrc_set_watermarks(pair, ASRC_FIFO_THRESHOLD_MIN, + ASRC_FIFO_THRESHOLD_MAX); + + /* Update the real input threshold to raise DMA request */ + fsl_asrc_set_watermarks(pair, ASRC_M2M_INPUTFIFO_WML, + ASRC_M2M_OUTPUTFIFO_WML); + + return 0; +} + +static int fsl_asrc_m2m_stop(struct fsl_asrc_pair *pair) +{ + if (!pair->first_convert) { + fsl_asrc_stop_pair(pair); + pair->first_convert = 1; + } + + return 0; +} + +/* calculate capture data length according to output data length and sample rate */ +static int fsl_asrc_m2m_calc_out_len(struct fsl_asrc_pair *pair, int input_buffer_length) +{ + unsigned int in_width, out_width; + unsigned int channels = pair->channels; + unsigned int in_samples, out_samples; + unsigned int out_length; + + in_width = snd_pcm_format_physical_width(pair->sample_format[IN]) / 8; + out_width = snd_pcm_format_physical_width(pair->sample_format[OUT]) / 8; + + in_samples = input_buffer_length / in_width / channels; + out_samples = pair->rate[OUT] * in_samples / pair->rate[IN]; + out_length = (out_samples - ASRC_OUTPUT_LAST_SAMPLE) * out_width * channels; + + return out_length; +} + +static int fsl_asrc_m2m_get_maxburst(u8 dir, struct fsl_asrc_pair *pair) +{ + struct fsl_asrc *asrc = pair->asrc; + struct fsl_asrc_priv *asrc_priv = asrc->private; + int wml = (dir == IN) ? ASRC_M2M_INPUTFIFO_WML : ASRC_M2M_OUTPUTFIFO_WML; + + if (!asrc_priv->soc->use_edma) + return wml * pair->channels; + else + return 1; +} + +static int fsl_asrc_m2m_get_cap(struct fsl_asrc_m2m_cap *cap) +{ + cap->fmt_in = FSL_ASRC_FORMATS; + cap->fmt_out = FSL_ASRC_FORMATS | SNDRV_PCM_FMTBIT_S8; + + cap->rate_in = supported_asrc_rate; + cap->rate_in_count = ARRAY_SIZE(supported_asrc_rate); + cap->rate_out = supported_asrc_rate; + cap->rate_out_count = ARRAY_SIZE(supported_asrc_rate); + cap->chan_min = 1; + cap->chan_max = 10; + + return 0; +} + +static int fsl_asrc_m2m_pair_resume(struct fsl_asrc_pair *pair) +{ + struct fsl_asrc *asrc = pair->asrc; + int i; + + for (i = 0; i < pair->channels * 4; i++) + regmap_write(asrc->regmap, REG_ASRDI(pair->index), 0); + + pair->first_convert = 1; + return 0; +} + static int fsl_asrc_runtime_resume(struct device *dev); static int fsl_asrc_runtime_suspend(struct device *dev); @@ -1147,6 +1280,15 @@ static int fsl_asrc_probe(struct platform_device *pdev) asrc->get_fifo_addr = fsl_asrc_get_fifo_addr; asrc->pair_priv_size = sizeof(struct fsl_asrc_pair_priv); + asrc->m2m_prepare = fsl_asrc_m2m_prepare; + asrc->m2m_start = fsl_asrc_m2m_start; + asrc->m2m_stop = fsl_asrc_m2m_stop; + asrc->get_output_fifo_size = fsl_asrc_get_output_fifo_size; + asrc->m2m_calc_out_len = fsl_asrc_m2m_calc_out_len; + asrc->m2m_get_maxburst = fsl_asrc_m2m_get_maxburst; + asrc->m2m_pair_resume = fsl_asrc_m2m_pair_resume; + asrc->m2m_get_cap = fsl_asrc_m2m_get_cap; + if (of_device_is_compatible(np, "fsl,imx35-asrc")) { asrc_priv->clk_map[IN] = input_clk_map_imx35; asrc_priv->clk_map[OUT] = output_clk_map_imx35; diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h index 86d2422ad606..1c492eb237f5 100644 --- a/sound/soc/fsl/fsl_asrc.h +++ b/sound/soc/fsl/fsl_asrc.h @@ -12,6 +12,8 @@ #include "fsl_asrc_common.h" +#define ASRC_M2M_INPUTFIFO_WML 0x4 +#define ASRC_M2M_OUTPUTFIFO_WML 0x2 #define ASRC_DMA_BUFFER_NUM 2 #define ASRC_INPUTFIFO_THRESHOLD 32 #define ASRC_OUTPUTFIFO_THRESHOLD 32 diff --git a/sound/soc/fsl/fsl_asrc_common.h b/sound/soc/fsl/fsl_asrc_common.h index 7e1c13ca37f1..3bdd6ea07c09 100644 --- a/sound/soc/fsl/fsl_asrc_common.h +++ b/sound/soc/fsl/fsl_asrc_common.h @@ -21,6 +21,26 @@ enum asrc_pair_index { #define PAIR_CTX_NUM 0x4 +/** + * struct fsl_asrc_m2m_cap - capability data + * @fmt_in: input sample format + * @fmt_out: output sample format + * @chan_min: minimum channel number + * @chan_max: maximum channel number + * @rate_in: minimum rate + * @rate_out: maximum rete + */ +struct fsl_asrc_m2m_cap { + u64 fmt_in; + u64 fmt_out; + int chan_min; + int chan_max; + const unsigned int *rate_in; + int rate_in_count; + const unsigned int *rate_out; + int rate_out_count; +}; + /** * fsl_asrc_pair: ASRC Pair common data * @@ -34,6 +54,13 @@ enum asrc_pair_index { * @pos: hardware pointer position * @req_dma_chan: flag to release dev_to_dev chan * @private: pair private area + * @complete: dma task complete + * @sample_format: format of m2m + * @rate: rate of m2m + * @buf_len: buffer length of m2m + * @dma_buffer: buffer pointers + * @first_convert: start of conversion + * @ratio_mod: ratio modification */ struct fsl_asrc_pair { struct fsl_asrc *asrc; @@ -49,6 +76,15 @@ struct fsl_asrc_pair { bool req_dma_chan; void *private; + + /* used for m2m */ + struct completion complete[2]; + snd_pcm_format_t sample_format[2]; + unsigned int rate[2]; + unsigned int buf_len[2]; + struct snd_dma_buffer dma_buffer[2]; + unsigned int first_convert; + unsigned int ratio_mod; }; /** @@ -72,6 +108,17 @@ struct fsl_asrc_pair { * @request_pair: function pointer * @release_pair: function pointer * @get_fifo_addr: function pointer + * @m2m_get_cap: function pointer + * @m2m_prepare: function pointer + * @m2m_start: function pointer + * @m2m_unprepare: function pointer + * @m2m_stop: function pointer + * @m2m_calc_out_len: function pointer + * @m2m_get_maxburst: function pointer + * @m2m_pair_suspend: function pointer + * @m2m_pair_resume: function pointer + * @m2m_set_ratio_mod: function pointer + * @get_output_fifo_size: function pointer * @pair_priv_size: size of pair private struct. * @private: private data structure */ @@ -97,6 +144,20 @@ struct fsl_asrc { int (*request_pair)(int channels, struct fsl_asrc_pair *pair); void (*release_pair)(struct fsl_asrc_pair *pair); int (*get_fifo_addr)(u8 dir, enum asrc_pair_index index); + int (*m2m_get_cap)(struct fsl_asrc_m2m_cap *cap); + + int (*m2m_prepare)(struct fsl_asrc_pair *pair); + int (*m2m_start)(struct fsl_asrc_pair *pair); + int (*m2m_unprepare)(struct fsl_asrc_pair *pair); + int (*m2m_stop)(struct fsl_asrc_pair *pair); + + int (*m2m_calc_out_len)(struct fsl_asrc_pair *pair, int input_buffer_length); + int (*m2m_get_maxburst)(u8 dir, struct fsl_asrc_pair *pair); + int (*m2m_pair_suspend)(struct fsl_asrc_pair *pair); + int (*m2m_pair_resume)(struct fsl_asrc_pair *pair); + int (*m2m_set_ratio_mod)(struct fsl_asrc_pair *pair, int val); + + unsigned int (*get_output_fifo_size)(struct fsl_asrc_pair *pair); size_t pair_priv_size; void *private;