^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) * Conexant Cx231xx audio extension
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Based on em28xx driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "cx231xx.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/sound.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/soundcard.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/module.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/info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <sound/initval.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <sound/control.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <media/v4l2-common.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static int debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) module_param(debug, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) MODULE_PARM_DESC(debug, "activates debug info");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static int cx231xx_isoc_audio_deinit(struct cx231xx *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) dev_dbg(dev->dev, "Stopping isoc\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if (dev->adev.urb[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if (!irqs_disabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) usb_kill_urb(dev->adev.urb[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) usb_unlink_urb(dev->adev.urb[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) usb_free_urb(dev->adev.urb[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) dev->adev.urb[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) kfree(dev->adev.transfer_buffer[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) dev->adev.transfer_buffer[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int cx231xx_bulk_audio_deinit(struct cx231xx *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) dev_dbg(dev->dev, "Stopping bulk\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (dev->adev.urb[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) if (!irqs_disabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) usb_kill_urb(dev->adev.urb[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) usb_unlink_urb(dev->adev.urb[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) usb_free_urb(dev->adev.urb[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) dev->adev.urb[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) kfree(dev->adev.transfer_buffer[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) dev->adev.transfer_buffer[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static void cx231xx_audio_isocirq(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct cx231xx *dev = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) unsigned int oldptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int period_elapsed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) unsigned char *cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) unsigned int stride;
^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) struct snd_pcm_runtime *runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (dev->state & DEV_DISCONNECTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) switch (urb->status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) case 0: /* success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) case -ETIMEDOUT: /* NAK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) case -ECONNRESET: /* kill */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) case -ESHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) default: /* error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) dev_dbg(dev->dev, "urb completion error %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (atomic_read(&dev->stream_started) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (dev->adev.capture_pcm_substream) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) substream = dev->adev.capture_pcm_substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) stride = runtime->frame_bits >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) for (i = 0; i < urb->number_of_packets; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int length = urb->iso_frame_desc[i].actual_length /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) stride;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) cp = (unsigned char *)urb->transfer_buffer +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) urb->iso_frame_desc[i].offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) if (!length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) oldptr = dev->adev.hwptr_done_capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (oldptr + length >= runtime->buffer_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) unsigned int cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) cnt = runtime->buffer_size - oldptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) memcpy(runtime->dma_area + oldptr * stride, cp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) cnt * stride);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) memcpy(runtime->dma_area, cp + cnt * stride,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) length * stride - cnt * stride);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) memcpy(runtime->dma_area + oldptr * stride, cp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) length * stride);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) snd_pcm_stream_lock_irqsave(substream, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) dev->adev.hwptr_done_capture += length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (dev->adev.hwptr_done_capture >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) runtime->buffer_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) dev->adev.hwptr_done_capture -=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) runtime->buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) dev->adev.capture_transfer_done += length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (dev->adev.capture_transfer_done >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) runtime->period_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) dev->adev.capture_transfer_done -=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) period_elapsed = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) snd_pcm_stream_unlock_irqrestore(substream, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (period_elapsed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) snd_pcm_period_elapsed(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) urb->status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) status = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) dev_err(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) "resubmit of audio urb failed (error=%i)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static void cx231xx_audio_bulkirq(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct cx231xx *dev = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) unsigned int oldptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) int period_elapsed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) unsigned char *cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) unsigned int stride;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct snd_pcm_substream *substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct snd_pcm_runtime *runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (dev->state & DEV_DISCONNECTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) switch (urb->status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) case 0: /* success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) case -ETIMEDOUT: /* NAK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) case -ECONNRESET: /* kill */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) case -ESHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) default: /* error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) dev_dbg(dev->dev, "urb completion error %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) if (atomic_read(&dev->stream_started) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) if (dev->adev.capture_pcm_substream) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) substream = dev->adev.capture_pcm_substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) stride = runtime->frame_bits >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) int length = urb->actual_length /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) stride;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) cp = (unsigned char *)urb->transfer_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) oldptr = dev->adev.hwptr_done_capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (oldptr + length >= runtime->buffer_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) unsigned int cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) cnt = runtime->buffer_size - oldptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) memcpy(runtime->dma_area + oldptr * stride, cp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) cnt * stride);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) memcpy(runtime->dma_area, cp + cnt * stride,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) length * stride - cnt * stride);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) memcpy(runtime->dma_area + oldptr * stride, cp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) length * stride);
^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) snd_pcm_stream_lock_irqsave(substream, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) dev->adev.hwptr_done_capture += length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (dev->adev.hwptr_done_capture >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) runtime->buffer_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) dev->adev.hwptr_done_capture -=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) runtime->buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) dev->adev.capture_transfer_done += length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (dev->adev.capture_transfer_done >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) runtime->period_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) dev->adev.capture_transfer_done -=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) period_elapsed = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) snd_pcm_stream_unlock_irqrestore(substream, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) if (period_elapsed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) snd_pcm_period_elapsed(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) urb->status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) status = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) dev_err(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) "resubmit of audio urb failed (error=%i)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) static int cx231xx_init_audio_isoc(struct cx231xx *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) int i, errCode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) int sb_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) dev_dbg(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) "%s: Starting ISO AUDIO transfers\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) if (dev->state & DEV_DISCONNECTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) sb_size = CX231XX_ISO_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) int j, k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (!dev->adev.transfer_buffer[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) memset(dev->adev.transfer_buffer[i], 0x80, sb_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) urb = usb_alloc_urb(CX231XX_ISO_NUM_AUDIO_PACKETS, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (!urb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) for (j = 0; j < i; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) usb_free_urb(dev->adev.urb[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) kfree(dev->adev.transfer_buffer[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) urb->dev = dev->udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) urb->context = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) urb->pipe = usb_rcvisocpipe(dev->udev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) dev->adev.end_point_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) urb->transfer_flags = URB_ISO_ASAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) urb->transfer_buffer = dev->adev.transfer_buffer[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) urb->interval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) urb->complete = cx231xx_audio_isocirq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) urb->number_of_packets = CX231XX_ISO_NUM_AUDIO_PACKETS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) urb->transfer_buffer_length = sb_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) for (j = k = 0; j < CX231XX_ISO_NUM_AUDIO_PACKETS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) j++, k += dev->adev.max_pkt_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) urb->iso_frame_desc[j].offset = k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) urb->iso_frame_desc[j].length = dev->adev.max_pkt_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) dev->adev.urb[i] = urb;
^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) for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (errCode < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) cx231xx_isoc_audio_deinit(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) return errCode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) return errCode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static int cx231xx_init_audio_bulk(struct cx231xx *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) int i, errCode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) int sb_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) dev_dbg(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) "%s: Starting BULK AUDIO transfers\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) if (dev->state & DEV_DISCONNECTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) int j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (!dev->adev.transfer_buffer[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) memset(dev->adev.transfer_buffer[i], 0x80, sb_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) urb = usb_alloc_urb(CX231XX_NUM_AUDIO_PACKETS, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (!urb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) for (j = 0; j < i; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) usb_free_urb(dev->adev.urb[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) kfree(dev->adev.transfer_buffer[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) urb->dev = dev->udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) urb->context = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) urb->pipe = usb_rcvbulkpipe(dev->udev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) dev->adev.end_point_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) urb->transfer_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) urb->transfer_buffer = dev->adev.transfer_buffer[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) urb->complete = cx231xx_audio_bulkirq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) urb->transfer_buffer_length = sb_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) dev->adev.urb[i] = urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (errCode < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) cx231xx_bulk_audio_deinit(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return errCode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^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) return errCode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) static const struct snd_pcm_hardware snd_cx231xx_hw_capture = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) .info = SNDRV_PCM_INFO_BLOCK_TRANSFER |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) SNDRV_PCM_INFO_MMAP |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) SNDRV_PCM_INFO_INTERLEAVED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) SNDRV_PCM_INFO_MMAP_VALID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) .formats = SNDRV_PCM_FMTBIT_S16_LE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_KNOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) .rate_min = 48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) .rate_max = 48000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) .channels_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) .channels_max = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) .buffer_bytes_max = 62720 * 8, /* just about the value in usbaudio.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) .period_bytes_min = 64, /* 12544/2, */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) .period_bytes_max = 12544,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) .periods_min = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) .periods_max = 98, /* 12544, */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) static int snd_cx231xx_capture_open(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct cx231xx *dev = snd_pcm_substream_chip(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) dev_dbg(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) "opening device and trying to acquire exclusive lock\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (dev->state & DEV_DISCONNECTED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) dev_err(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) "Can't open. the device was removed.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return -ENODEV;
^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) /* set alternate setting for audio interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) /* 1 - 48000 samples per sec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) mutex_lock(&dev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (dev->USE_ISO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) mutex_unlock(&dev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) dev_err(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) "failed to set alternate setting !\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) runtime->hw = snd_cx231xx_hw_capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) mutex_lock(&dev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) /* inform hardware to start streaming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) ret = cx231xx_capture_start(dev, 1, Audio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) dev->adev.users++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) mutex_unlock(&dev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) dev->adev.capture_pcm_substream = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) runtime->private_data = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) struct cx231xx *dev = snd_pcm_substream_chip(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) dev_dbg(dev->dev, "closing device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) /* inform hardware to stop streaming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) mutex_lock(&dev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) ret = cx231xx_capture_start(dev, 0, Audio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) /* set alternate setting for audio interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) /* 1 - 48000 samples per sec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) dev_err(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) "failed to set alternate setting !\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) mutex_unlock(&dev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) dev->adev.users--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) mutex_unlock(&dev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) if (dev->adev.users == 0 && dev->adev.shutdown == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) dev_dbg(dev->dev, "audio users: %d\n", dev->adev.users);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) dev_dbg(dev->dev, "disabling audio stream!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) dev->adev.shutdown = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) dev_dbg(dev->dev, "released lock\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) if (atomic_read(&dev->stream_started) > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) atomic_set(&dev->stream_started, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) schedule_work(&dev->wq_trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) static int snd_cx231xx_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) struct cx231xx *dev = snd_pcm_substream_chip(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) dev->adev.hwptr_done_capture = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) dev->adev.capture_transfer_done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) static void audio_trigger(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) struct cx231xx *dev = container_of(work, struct cx231xx, wq_trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) if (atomic_read(&dev->stream_started)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) dev_dbg(dev->dev, "starting capture");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) if (is_fw_load(dev) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) cx25840_call(dev, core, load_fw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) if (dev->USE_ISO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) cx231xx_init_audio_isoc(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) cx231xx_init_audio_bulk(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) dev_dbg(dev->dev, "stopping capture");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) cx231xx_isoc_audio_deinit(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) static int snd_cx231xx_capture_trigger(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) struct cx231xx *dev = snd_pcm_substream_chip(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) int retval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (dev->state & DEV_DISCONNECTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) spin_lock(&dev->adev.slock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) atomic_set(&dev->stream_started, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) atomic_set(&dev->stream_started, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) retval = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) spin_unlock(&dev->adev.slock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) schedule_work(&dev->wq_trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) static snd_pcm_uframes_t snd_cx231xx_capture_pointer(struct snd_pcm_substream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) struct cx231xx *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) snd_pcm_uframes_t hwptr_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) dev = snd_pcm_substream_chip(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) spin_lock_irqsave(&dev->adev.slock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) hwptr_done = dev->adev.hwptr_done_capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) spin_unlock_irqrestore(&dev->adev.slock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) return hwptr_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) static const struct snd_pcm_ops snd_cx231xx_pcm_capture = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) .open = snd_cx231xx_capture_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) .close = snd_cx231xx_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) .prepare = snd_cx231xx_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) .trigger = snd_cx231xx_capture_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) .pointer = snd_cx231xx_capture_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) static int cx231xx_audio_init(struct cx231xx *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) struct cx231xx_audio *adev = &dev->adev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) static int devnr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) struct usb_interface *uif;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) int i, isoc_pipe = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) if (dev->has_alsa_audio != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) /* This device does not support the extension (in this case
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) the device is expecting the snd-usb-audio module or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) doesn't have analog audio support at all) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) dev_dbg(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) "probing for cx231xx non standard usbaudio\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) err = snd_card_new(dev->dev, index[devnr], "Cx231xx Audio",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) THIS_MODULE, 0, &card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) spin_lock_init(&adev->slock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) goto err_free_card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) &snd_cx231xx_pcm_capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) pcm->info_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) pcm->private_data = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) strscpy(pcm->name, "Conexant cx231xx Capture", sizeof(pcm->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) strscpy(card->driver, "Cx231xx-Audio", sizeof(card->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) strscpy(card->shortname, "Cx231xx Audio", sizeof(card->shortname));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) strscpy(card->longname, "Conexant cx231xx Audio", sizeof(card->longname));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) INIT_WORK(&dev->wq_trigger, audio_trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) err = snd_card_register(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) goto err_free_card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) adev->sndcard = card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) adev->udev = dev->udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) /* compute alternate max packet sizes for Audio */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) uif =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) dev->udev->actconfig->interface[dev->current_pcb_config.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) hs_config_info[0].interface_info.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) audio_index + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) goto err_free_card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) adev->end_point_addr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) uif->altsetting[0].endpoint[isoc_pipe].desc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) bEndpointAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) adev->num_alt = uif->num_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) dev_info(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) "audio EndPoint Addr 0x%x, Alternate settings: %i\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) adev->end_point_addr, adev->num_alt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) adev->alt_max_pkt_size = kmalloc_array(32, adev->num_alt, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (!adev->alt_max_pkt_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) goto err_free_card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) for (i = 0; i < adev->num_alt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) u16 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) goto err_free_pkt_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) wMaxPacketSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) adev->alt_max_pkt_size[i] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) dev_dbg(dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) "audio alternate setting %i, max size= %i\n", i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) adev->alt_max_pkt_size[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) err_free_pkt_size:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) kfree(adev->alt_max_pkt_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) err_free_card:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) snd_card_free(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) static int cx231xx_audio_fini(struct cx231xx *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if (dev == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (dev->has_alsa_audio != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) /* This device does not support the extension (in this case
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) the device is expecting the snd-usb-audio module or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) doesn't have analog audio support at all) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) if (dev->adev.sndcard) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) snd_card_free(dev->adev.sndcard);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) kfree(dev->adev.alt_max_pkt_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) dev->adev.sndcard = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) static struct cx231xx_ops audio_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) .id = CX231XX_AUDIO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) .name = "Cx231xx Audio Extension",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) .init = cx231xx_audio_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) .fini = cx231xx_audio_fini,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) static int __init cx231xx_alsa_register(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) return cx231xx_register_extension(&audio_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) static void __exit cx231xx_alsa_unregister(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) cx231xx_unregister_extension(&audio_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) MODULE_DESCRIPTION("Cx231xx Audio driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) module_init(cx231xx_alsa_register);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) module_exit(cx231xx_alsa_unregister);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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