^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) * Driver for Sound Core PDAudioCF soundcards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * PCM part
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <sound/asoundef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "pdaudiocf.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * clear the SRAM contents
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static int pdacf_pcm_clear_sram(struct snd_pdacf *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) int max_loop = 64 * 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) while (inw(chip->port + PDAUDIOCF_REG_RDP) != inw(chip->port + PDAUDIOCF_REG_WDP)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) if (max_loop-- < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) inw(chip->port + PDAUDIOCF_REG_MD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * pdacf_pcm_trigger - trigger callback for capture
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static int pdacf_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct snd_pcm_runtime *runtime = subs->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int inc, ret = 0, rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) unsigned short mask, val, tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) chip->pcm_hwptr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) chip->pcm_tdone = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) case SNDRV_PCM_TRIGGER_RESUME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) val = PDAUDIOCF_RECORD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) inc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) rate = snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_STAT|AK4117_CHECK_NO_RATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) case SNDRV_PCM_TRIGGER_SUSPEND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) mask = PDAUDIOCF_RECORD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) inc = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) rate = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) mutex_lock(&chip->reg_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) chip->pcm_running += inc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (chip->pcm_running) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if ((chip->ak4117->rcs0 & AK4117_UNLCK) || runtime->rate != rate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) chip->pcm_running -= inc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) goto __end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) tmp &= ~mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) tmp |= val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) __end:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) mutex_unlock(&chip->reg_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_RATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^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) * pdacf_pcm_prepare - prepare callback for playback and capture
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static int pdacf_pcm_prepare(struct snd_pcm_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct snd_pcm_runtime *runtime = subs->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) u16 val, nval, aval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) chip->pcm_channels = runtime->channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) chip->pcm_little = snd_pcm_format_little_endian(runtime->format) > 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #ifdef SNDRV_LITTLE_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) chip->pcm_swab = snd_pcm_format_big_endian(runtime->format) > 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) chip->pcm_swab = chip->pcm_little;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (snd_pcm_format_unsigned(runtime->format))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) chip->pcm_xor = 0x80008000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (pdacf_pcm_clear_sram(chip) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) val = nval = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) nval &= ~(PDAUDIOCF_DATAFMT0|PDAUDIOCF_DATAFMT1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) switch (runtime->format) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) case SNDRV_PCM_FORMAT_S16_LE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) case SNDRV_PCM_FORMAT_S16_BE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) default: /* 24-bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) nval |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) aval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) chip->pcm_sample = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) switch (runtime->format) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) case SNDRV_PCM_FORMAT_S16_LE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) case SNDRV_PCM_FORMAT_S16_BE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) aval = AK4117_DIF_16R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) chip->pcm_frame = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) chip->pcm_sample = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) case SNDRV_PCM_FORMAT_S24_3LE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) case SNDRV_PCM_FORMAT_S24_3BE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) chip->pcm_sample = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) default: /* 24-bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) aval = AK4117_DIF_24R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) chip->pcm_frame = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) chip->pcm_xor &= 0xffff0000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (val != nval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) snd_ak4117_reg_write(chip->ak4117, AK4117_REG_IO, AK4117_DIF2|AK4117_DIF1|AK4117_DIF0, aval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, nval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) val &= ~(PDAUDIOCF_IRQLVLEN1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) val |= PDAUDIOCF_IRQLVLEN0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) chip->pcm_size = runtime->buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) chip->pcm_period = runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) chip->pcm_area = runtime->dma_area;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * capture hw information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static const struct snd_pcm_hardware pdacf_pcm_capture_hw = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) SNDRV_PCM_INFO_MMAP_VALID |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) SNDRV_PCM_INFO_BATCH),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) .rates = SNDRV_PCM_RATE_32000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) SNDRV_PCM_RATE_44100 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) SNDRV_PCM_RATE_48000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) SNDRV_PCM_RATE_88200 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) SNDRV_PCM_RATE_96000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) SNDRV_PCM_RATE_176400 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) SNDRV_PCM_RATE_192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .rate_min = 32000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) .rate_max = 192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .channels_min = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) .channels_max = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) .buffer_bytes_max = (512*1024),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) .period_bytes_min = 8*1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .period_bytes_max = (64*1024),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) .periods_max = 128,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) .fifo_size = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * pdacf_pcm_capture_open - open callback for capture
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static int pdacf_pcm_capture_open(struct snd_pcm_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct snd_pcm_runtime *runtime = subs->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) runtime->hw = pdacf_pcm_capture_hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) runtime->private_data = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) chip->pcm_substream = subs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * pdacf_pcm_capture_close - close callback for capture
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static int pdacf_pcm_capture_close(struct snd_pcm_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) if (!chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) pdacf_reinit(chip, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) chip->pcm_substream = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * pdacf_pcm_capture_pointer - pointer callback for capture
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static snd_pcm_uframes_t pdacf_pcm_capture_pointer(struct snd_pcm_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return chip->pcm_hwptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^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) * operators for PCM capture
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static const struct snd_pcm_ops pdacf_pcm_capture_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) .open = pdacf_pcm_capture_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .close = pdacf_pcm_capture_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) .prepare = pdacf_pcm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) .trigger = pdacf_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) .pointer = pdacf_pcm_capture_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * snd_pdacf_pcm_new - create and initialize a pcm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) int snd_pdacf_pcm_new(struct snd_pdacf *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) err = snd_pcm_new(chip->card, "PDAudioCF", 0, 0, 1, &pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pdacf_pcm_capture_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) snd_dma_continuous_data(GFP_KERNEL | GFP_DMA32),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) pcm->private_data = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) pcm->info_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) pcm->nonatomic = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) strcpy(pcm->name, chip->card->shortname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) chip->pcm = pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) err = snd_ak4117_build(chip->ak4117, pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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