^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/sound/soc/pxa/mmp-pcm.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2011 Marvell International Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/dmaengine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/platform_data/dma-mmp_tdma.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/platform_data/mmp_audio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <sound/pxa2xx-lib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <sound/pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <sound/pcm_params.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <sound/soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <sound/dmaengine_pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define DRV_NAME "mmp-pcm"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct mmp_dma_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) int ssp_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct resource *dma_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define MMP_PCM_INFO (SNDRV_PCM_INFO_MMAP | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) SNDRV_PCM_INFO_MMAP_VALID | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) SNDRV_PCM_INFO_INTERLEAVED | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) SNDRV_PCM_INFO_PAUSE | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) SNDRV_PCM_INFO_RESUME | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) SNDRV_PCM_INFO_NO_PERIOD_WAKEUP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static struct snd_pcm_hardware mmp_pcm_hardware[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .info = MMP_PCM_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .period_bytes_min = 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .period_bytes_max = 2048,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) .periods_max = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .buffer_bytes_max = 4096,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) .fifo_size = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .info = MMP_PCM_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .period_bytes_min = 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .period_bytes_max = 2048,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .periods_max = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .buffer_bytes_max = 4096,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) .fifo_size = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static int mmp_pcm_hw_params(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct snd_pcm_hw_params *params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct dma_slave_config slave_config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) ret =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) snd_dmaengine_pcm_prepare_slave_config(substream, params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) &slave_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ret = dmaengine_slave_config(chan, &slave_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static int mmp_pcm_trigger(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return snd_dmaengine_pcm_trigger(substream, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static snd_pcm_uframes_t mmp_pcm_pointer(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return snd_dmaengine_pcm_pointer(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static bool filter(struct dma_chan *chan, void *param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct mmp_dma_data *dma_data = param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) bool found = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) char *devname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) devname = kasprintf(GFP_KERNEL, "%s.%d", dma_data->dma_res->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) dma_data->ssp_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if ((strcmp(dev_name(chan->device->dev), devname) == 0) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) (chan->chan_id == dma_data->dma_res->start)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) found = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) kfree(devname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return found;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static int mmp_pcm_open(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct platform_device *pdev = to_platform_device(component->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct mmp_dma_data dma_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct resource *r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) r = platform_get_resource(pdev, IORESOURCE_DMA, substream->stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (!r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) snd_soc_set_runtime_hwparams(substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) &mmp_pcm_hardware[substream->stream]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) dma_data.dma_res = r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) dma_data.ssp_id = cpu_dai->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return snd_dmaengine_pcm_open_request_chan(substream, filter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) &dma_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static int mmp_pcm_close(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return snd_dmaengine_pcm_close_release_chan(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static int mmp_pcm_mmap(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct vm_area_struct *vma)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) unsigned long off = vma->vm_pgoff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) return remap_pfn_range(vma, vma->vm_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) __phys_to_pfn(runtime->dma_addr) + off,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) vma->vm_end - vma->vm_start, vma->vm_page_prot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static void mmp_pcm_free_dma_buffers(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct snd_pcm *pcm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct snd_pcm_substream *substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct snd_dma_buffer *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) int stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct gen_pool *gpool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) gpool = sram_get_gpool("asram");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (!gpool)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) for (stream = 0; stream < 2; stream++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) size_t size = mmp_pcm_hardware[stream].buffer_bytes_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) substream = pcm->streams[stream].substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (!substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) buf = &substream->dma_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (!buf->area)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) gen_pool_free(gpool, (unsigned long)buf->area, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) buf->area = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) int stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) struct snd_dma_buffer *buf = &substream->dma_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) size_t size = mmp_pcm_hardware[stream].buffer_bytes_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct gen_pool *gpool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) buf->dev.type = SNDRV_DMA_TYPE_DEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) buf->dev.dev = substream->pcm->card->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) buf->private_data = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) gpool = sram_get_gpool("asram");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) if (!gpool)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) buf->area = gen_pool_dma_alloc(gpool, size, &buf->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (!buf->area)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) buf->bytes = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static int mmp_pcm_new(struct snd_soc_component *component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct snd_soc_pcm_runtime *rtd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct snd_pcm_substream *substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) struct snd_pcm *pcm = rtd->pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) int ret = 0, stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) for (stream = 0; stream < 2; stream++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) substream = pcm->streams[stream].substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) ret = mmp_pcm_preallocate_dma_buffer(substream, stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) mmp_pcm_free_dma_buffers(component, pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static const struct snd_soc_component_driver mmp_soc_component = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) .name = DRV_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) .open = mmp_pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) .close = mmp_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) .hw_params = mmp_pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) .trigger = mmp_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) .pointer = mmp_pcm_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) .mmap = mmp_pcm_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) .pcm_construct = mmp_pcm_new,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) .pcm_destruct = mmp_pcm_free_dma_buffers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) static int mmp_pcm_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) struct mmp_audio_platdata *pdata = pdev->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (pdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) mmp_pcm_hardware[SNDRV_PCM_STREAM_PLAYBACK].buffer_bytes_max =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) pdata->buffer_max_playback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) mmp_pcm_hardware[SNDRV_PCM_STREAM_PLAYBACK].period_bytes_max =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) pdata->period_max_playback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) mmp_pcm_hardware[SNDRV_PCM_STREAM_CAPTURE].buffer_bytes_max =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) pdata->buffer_max_capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) mmp_pcm_hardware[SNDRV_PCM_STREAM_CAPTURE].period_bytes_max =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) pdata->period_max_capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) return devm_snd_soc_register_component(&pdev->dev, &mmp_soc_component,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) static struct platform_driver mmp_pcm_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) .name = "mmp-pcm-audio",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) .probe = mmp_pcm_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) module_platform_driver(mmp_pcm_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) MODULE_DESCRIPTION("MMP Soc Audio DMA module");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) MODULE_ALIAS("platform:mmp-pcm-audio");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags