^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 driver for TerraTec DMX 6Fire USB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * PCM driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Torsten Schenk <torsten.schenk@zoho.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Created: Jan 01, 2011
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright: (C) Torsten Schenk
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "pcm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "chip.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "comm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "control.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) OUT_N_CHANNELS = 6, IN_N_CHANNELS = 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /* keep next two synced with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * FW_EP_W_MAX_PACKET_SIZE[] and RATES_MAX_PACKET_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * and CONTROL_RATE_XXX in control.h */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static const int rates_in_packet_size[] = { 228, 228, 420, 420, 404, 404 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static const int rates_out_packet_size[] = { 228, 228, 420, 420, 604, 604 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static const int rates[] = { 44100, 48000, 88200, 96000, 176400, 192000 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static const int rates_alsaid[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) SNDRV_PCM_RATE_88200, SNDRV_PCM_RATE_96000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) SNDRV_PCM_RATE_176400, SNDRV_PCM_RATE_192000 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) enum { /* settings for pcm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) OUT_EP = 6, IN_EP = 2, MAX_BUFSIZE = 128 * 1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) enum { /* pcm streaming states */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) STREAM_DISABLED, /* no pcm streaming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) STREAM_STARTING, /* pcm streaming requested, waiting to become ready */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) STREAM_RUNNING, /* pcm streaming running */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) STREAM_STOPPING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static const struct snd_pcm_hardware pcm_hw = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .info = SNDRV_PCM_INFO_MMAP |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) SNDRV_PCM_INFO_INTERLEAVED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) SNDRV_PCM_INFO_BLOCK_TRANSFER |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) SNDRV_PCM_INFO_MMAP_VALID |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) SNDRV_PCM_INFO_BATCH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .rates = SNDRV_PCM_RATE_44100 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) SNDRV_PCM_RATE_48000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) SNDRV_PCM_RATE_88200 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) SNDRV_PCM_RATE_96000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) SNDRV_PCM_RATE_176400 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) SNDRV_PCM_RATE_192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .rate_min = 44100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .rate_max = 192000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .channels_min = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .channels_max = 0, /* set in pcm_open, depending on capture/playback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .buffer_bytes_max = MAX_BUFSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .period_bytes_min = PCM_N_PACKETS_PER_URB * (PCM_MAX_PACKET_SIZE - 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .period_bytes_max = MAX_BUFSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .periods_max = 1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static int usb6fire_pcm_set_rate(struct pcm_runtime *rt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct control_runtime *ctrl_rt = rt->chip->control;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) ctrl_rt->usb_streaming = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) ret = ctrl_rt->update_streaming(ctrl_rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) dev_err(&rt->chip->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) "error stopping streaming while setting samplerate %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) rates[rt->rate]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) ret = ctrl_rt->set_rate(ctrl_rt, rt->rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) dev_err(&rt->chip->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) "error setting samplerate %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) rates[rt->rate]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) ret = ctrl_rt->set_channels(ctrl_rt, OUT_N_CHANNELS, IN_N_CHANNELS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) false, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) dev_err(&rt->chip->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) "error initializing channels while setting samplerate %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) rates[rt->rate]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) ctrl_rt->usb_streaming = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) ret = ctrl_rt->update_streaming(ctrl_rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) dev_err(&rt->chip->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) "error starting streaming while setting samplerate %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) rates[rt->rate]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return ret;
^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) rt->in_n_analog = IN_N_CHANNELS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) rt->out_n_analog = OUT_N_CHANNELS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) rt->in_packet_size = rates_in_packet_size[rt->rate];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) rt->out_packet_size = rates_out_packet_size[rt->rate];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static struct pcm_substream *usb6fire_pcm_get_substream(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct snd_pcm_substream *alsa_sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) return &rt->playback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return &rt->capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) dev_err(&rt->chip->dev->dev, "error getting pcm substream slot.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /* call with stream_mutex locked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static void usb6fire_pcm_stream_stop(struct pcm_runtime *rt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct control_runtime *ctrl_rt = rt->chip->control;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (rt->stream_state != STREAM_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) rt->stream_state = STREAM_STOPPING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) for (i = 0; i < PCM_N_URBS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) usb_kill_urb(&rt->in_urbs[i].instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) usb_kill_urb(&rt->out_urbs[i].instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) ctrl_rt->usb_streaming = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) ctrl_rt->update_streaming(ctrl_rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) rt->stream_state = STREAM_DISABLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) /* call with stream_mutex locked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static int usb6fire_pcm_stream_start(struct pcm_runtime *rt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) int k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct usb_iso_packet_descriptor *packet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) if (rt->stream_state == STREAM_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /* submit our in urbs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) rt->stream_wait_cond = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) rt->stream_state = STREAM_STARTING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) for (i = 0; i < PCM_N_URBS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) for (k = 0; k < PCM_N_PACKETS_PER_URB; k++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) packet = &rt->in_urbs[i].packets[k];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) packet->offset = k * rt->in_packet_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) packet->length = rt->in_packet_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) packet->actual_length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) packet->status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ret = usb_submit_urb(&rt->in_urbs[i].instance,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) usb6fire_pcm_stream_stop(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^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) /* wait for first out urb to return (sent in in urb handler) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (rt->stream_wait_cond)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) rt->stream_state = STREAM_RUNNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) usb6fire_pcm_stream_stop(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) /* call with substream locked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) static void usb6fire_pcm_capture(struct pcm_substream *sub, struct pcm_urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) int frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) int frame_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) unsigned int total_length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct snd_pcm_runtime *alsa_rt = sub->instance->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) u32 *src = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) u32 *dest = (u32 *) (alsa_rt->dma_area + sub->dma_off
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * (alsa_rt->frame_bits >> 3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) u32 *dest_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) * (alsa_rt->frame_bits >> 3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) int bytes_per_frame = alsa_rt->channels << 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* at least 4 header bytes for valid packet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * after that: 32 bits per sample for analog channels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (urb->packets[i].actual_length > 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) frame_count = (urb->packets[i].actual_length - 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) / (rt->in_n_analog << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) frame_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (alsa_rt->format == SNDRV_PCM_FORMAT_S24_LE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) src = (u32 *) (urb->buffer + total_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) else if (alsa_rt->format == SNDRV_PCM_FORMAT_S32_LE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) src = (u32 *) (urb->buffer - 1 + total_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) src++; /* skip leading 4 bytes of every packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) total_length += urb->packets[i].length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) for (frame = 0; frame < frame_count; frame++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) memcpy(dest, src, bytes_per_frame);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) dest += alsa_rt->channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) src += rt->in_n_analog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) sub->dma_off++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) sub->period_off++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (dest == dest_end) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) sub->dma_off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) dest = (u32 *) alsa_rt->dma_area;
^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) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /* call with substream locked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) static void usb6fire_pcm_playback(struct pcm_substream *sub,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) struct pcm_urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) int frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) int frame_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) struct snd_pcm_runtime *alsa_rt = sub->instance->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) u32 *src = (u32 *) (alsa_rt->dma_area + sub->dma_off
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * (alsa_rt->frame_bits >> 3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) u32 *src_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) * (alsa_rt->frame_bits >> 3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) u32 *dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) int bytes_per_frame = alsa_rt->channels << 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (alsa_rt->format == SNDRV_PCM_FORMAT_S32_LE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) dest = (u32 *) (urb->buffer - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) else if (alsa_rt->format == SNDRV_PCM_FORMAT_S24_LE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) dest = (u32 *) (urb->buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) dev_err(&rt->chip->dev->dev, "Unknown sample format.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /* at least 4 header bytes for valid packet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) * after that: 32 bits per sample for analog channels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) if (urb->packets[i].length > 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) frame_count = (urb->packets[i].length - 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) / (rt->out_n_analog << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) frame_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) dest++; /* skip leading 4 bytes of every frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) for (frame = 0; frame < frame_count; frame++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) memcpy(dest, src, bytes_per_frame);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) src += alsa_rt->channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) dest += rt->out_n_analog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) sub->dma_off++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) sub->period_off++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) if (src == src_end) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) src = (u32 *) alsa_rt->dma_area;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) sub->dma_off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) static void usb6fire_pcm_in_urb_handler(struct urb *usb_urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) struct pcm_urb *in_urb = usb_urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) struct pcm_urb *out_urb = in_urb->peer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) struct pcm_runtime *rt = in_urb->chip->pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct pcm_substream *sub;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) int total_length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) int frame_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) int frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) int channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) u8 *dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (usb_urb->status || rt->panic || rt->stream_state == STREAM_STOPPING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) for (i = 0; i < PCM_N_PACKETS_PER_URB; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) if (in_urb->packets[i].status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) rt->panic = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) if (rt->stream_state == STREAM_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) dev_err(&rt->chip->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) "internal error: stream disabled in in-urb handler.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) /* receive our capture data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) sub = &rt->capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) spin_lock_irqsave(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) if (sub->active) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) usb6fire_pcm_capture(sub, in_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (sub->period_off >= sub->instance->runtime->period_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) sub->period_off %= sub->instance->runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) snd_pcm_period_elapsed(sub->instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /* setup out urb structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) out_urb->packets[i].offset = total_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) out_urb->packets[i].length = (in_urb->packets[i].actual_length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) - 4) / (rt->in_n_analog << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) * (rt->out_n_analog << 2) + 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) out_urb->packets[i].status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) total_length += out_urb->packets[i].length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) memset(out_urb->buffer, 0, total_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) /* now send our playback data (if a free out urb was found) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) sub = &rt->playback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) spin_lock_irqsave(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (sub->active) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) usb6fire_pcm_playback(sub, out_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (sub->period_off >= sub->instance->runtime->period_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) sub->period_off %= sub->instance->runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) snd_pcm_period_elapsed(sub->instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) /* setup the 4th byte of each sample (0x40 for analog channels) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) dest = out_urb->buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) for (i = 0; i < PCM_N_PACKETS_PER_URB; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (out_urb->packets[i].length >= 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) frame_count = (out_urb->packets[i].length - 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) / (rt->out_n_analog << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) *(dest++) = 0xaa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) *(dest++) = 0xaa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) *(dest++) = frame_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) *(dest++) = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) for (frame = 0; frame < frame_count; frame++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) for (channel = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) channel < rt->out_n_analog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) channel++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) dest += 3; /* skip sample data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) *(dest++) = 0x40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) usb_submit_urb(&out_urb->instance, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) usb_submit_urb(&in_urb->instance, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) static void usb6fire_pcm_out_urb_handler(struct urb *usb_urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) struct pcm_urb *urb = usb_urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) struct pcm_runtime *rt = urb->chip->pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (rt->stream_state == STREAM_STARTING) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) rt->stream_wait_cond = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) wake_up(&rt->stream_wait_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) static int usb6fire_pcm_open(struct snd_pcm_substream *alsa_sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct pcm_substream *sub = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (rt->panic)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return -EPIPE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) mutex_lock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) alsa_rt->hw = pcm_hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) if (rt->rate < ARRAY_SIZE(rates))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) alsa_rt->hw.rates = rates_alsaid[rt->rate];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) alsa_rt->hw.channels_max = OUT_N_CHANNELS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) sub = &rt->playback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) } else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (rt->rate < ARRAY_SIZE(rates))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) alsa_rt->hw.rates = rates_alsaid[rt->rate];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) alsa_rt->hw.channels_max = IN_N_CHANNELS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) sub = &rt->capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (!sub) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) mutex_unlock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) dev_err(&rt->chip->dev->dev, "invalid stream type.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) sub->instance = alsa_sub;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) sub->active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) mutex_unlock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) static int usb6fire_pcm_close(struct snd_pcm_substream *alsa_sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (rt->panic)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) mutex_lock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) if (sub) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) /* deactivate substream */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) spin_lock_irqsave(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) sub->instance = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) sub->active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) /* all substreams closed? if so, stop streaming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (!rt->playback.instance && !rt->capture.instance) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) usb6fire_pcm_stream_stop(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) rt->rate = ARRAY_SIZE(rates);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) mutex_unlock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) if (rt->panic)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) return -EPIPE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (!sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) mutex_lock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) sub->dma_off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) sub->period_off = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (rt->stream_state == STREAM_DISABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) for (rt->rate = 0; rt->rate < ARRAY_SIZE(rates); rt->rate++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (alsa_rt->rate == rates[rt->rate])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (rt->rate == ARRAY_SIZE(rates)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) mutex_unlock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) dev_err(&rt->chip->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) "invalid rate %d in prepare.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) alsa_rt->rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) ret = usb6fire_pcm_set_rate(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) mutex_unlock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) ret = usb6fire_pcm_stream_start(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) mutex_unlock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) dev_err(&rt->chip->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) "could not start pcm stream.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) mutex_unlock(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) static int usb6fire_pcm_trigger(struct snd_pcm_substream *alsa_sub, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) if (rt->panic)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) return -EPIPE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) if (!sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) spin_lock_irqsave(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) sub->active = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) spin_lock_irqsave(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) sub->active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) static snd_pcm_uframes_t usb6fire_pcm_pointer(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) struct snd_pcm_substream *alsa_sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) snd_pcm_uframes_t ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (rt->panic || !sub)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) return SNDRV_PCM_POS_XRUN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) spin_lock_irqsave(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) ret = sub->dma_off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) spin_unlock_irqrestore(&sub->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) static const struct snd_pcm_ops pcm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) .open = usb6fire_pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) .close = usb6fire_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) .prepare = usb6fire_pcm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) .trigger = usb6fire_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) .pointer = usb6fire_pcm_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) static void usb6fire_pcm_init_urb(struct pcm_urb *urb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) struct sfire_chip *chip, bool in, int ep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) void (*handler)(struct urb *))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) urb->chip = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) usb_init_urb(&urb->instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) urb->instance.transfer_buffer = urb->buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) urb->instance.transfer_buffer_length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) PCM_N_PACKETS_PER_URB * PCM_MAX_PACKET_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) urb->instance.dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) urb->instance.pipe = in ? usb_rcvisocpipe(chip->dev, ep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) : usb_sndisocpipe(chip->dev, ep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) urb->instance.interval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) urb->instance.complete = handler;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) urb->instance.context = urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) urb->instance.number_of_packets = PCM_N_PACKETS_PER_URB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) static int usb6fire_pcm_buffers_init(struct pcm_runtime *rt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) for (i = 0; i < PCM_N_URBS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) rt->out_urbs[i].buffer = kcalloc(PCM_MAX_PACKET_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) PCM_N_PACKETS_PER_URB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (!rt->out_urbs[i].buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) rt->in_urbs[i].buffer = kcalloc(PCM_MAX_PACKET_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) PCM_N_PACKETS_PER_URB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) if (!rt->in_urbs[i].buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) static void usb6fire_pcm_buffers_destroy(struct pcm_runtime *rt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) for (i = 0; i < PCM_N_URBS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) kfree(rt->out_urbs[i].buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) kfree(rt->in_urbs[i].buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) int usb6fire_pcm_init(struct sfire_chip *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) struct pcm_runtime *rt =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) kzalloc(sizeof(struct pcm_runtime), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) if (!rt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) ret = usb6fire_pcm_buffers_init(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) usb6fire_pcm_buffers_destroy(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) kfree(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) rt->chip = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) rt->stream_state = STREAM_DISABLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) rt->rate = ARRAY_SIZE(rates);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) init_waitqueue_head(&rt->stream_wait_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) mutex_init(&rt->stream_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) spin_lock_init(&rt->playback.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) spin_lock_init(&rt->capture.lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) for (i = 0; i < PCM_N_URBS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) usb6fire_pcm_init_urb(&rt->in_urbs[i], chip, true, IN_EP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) usb6fire_pcm_in_urb_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) usb6fire_pcm_init_urb(&rt->out_urbs[i], chip, false, OUT_EP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) usb6fire_pcm_out_urb_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) rt->in_urbs[i].peer = &rt->out_urbs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) rt->out_urbs[i].peer = &rt->in_urbs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) ret = snd_pcm_new(chip->card, "DMX6FireUSB", 0, 1, 1, &pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) usb6fire_pcm_buffers_destroy(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) kfree(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) dev_err(&chip->dev->dev, "cannot create pcm instance.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) pcm->private_data = rt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) strcpy(pcm->name, "DMX 6Fire USB");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) rt->instance = pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) chip->pcm = rt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) void usb6fire_pcm_abort(struct sfire_chip *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) struct pcm_runtime *rt = chip->pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) if (rt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) rt->panic = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if (rt->playback.instance)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) snd_pcm_stop_xrun(rt->playback.instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (rt->capture.instance)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) snd_pcm_stop_xrun(rt->capture.instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) for (i = 0; i < PCM_N_URBS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) usb_poison_urb(&rt->in_urbs[i].instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) usb_poison_urb(&rt->out_urbs[i].instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) void usb6fire_pcm_destroy(struct sfire_chip *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) struct pcm_runtime *rt = chip->pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) usb6fire_pcm_buffers_destroy(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) kfree(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) chip->pcm = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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