^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Edirol UA-101/UA-1000 driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/usb/audio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <sound/initval.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <sound/pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <sound/pcm_params.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "../usbaudio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "../midi.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) MODULE_DESCRIPTION("Edirol UA-101/1000 driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) MODULE_SUPPORTED_DEVICE("{{Edirol,UA-101},{Edirol,UA-1000}}");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Should not be lower than the minimum scheduling delay of the host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * controller. Some Intel controllers need more than one frame; as long as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * that driver doesn't tell us about this, use 1.5 frames just to be sure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define MIN_QUEUE_LENGTH 12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /* Somewhat random. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define MAX_QUEUE_LENGTH 30
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * This magic value optimizes memory usage efficiency for the UA-101's packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * sizes at all sample rates, taking into account the stupid cache pool sizes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * that usb_alloc_coherent() uses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define DEFAULT_QUEUE_LENGTH 21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define MAX_PACKET_SIZE 672 /* hardware specific */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define MAX_MEMORY_BUFFERS DIV_ROUND_UP(MAX_QUEUE_LENGTH, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) PAGE_SIZE / MAX_PACKET_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static unsigned int queue_length = 21;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) module_param_array(index, int, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) MODULE_PARM_DESC(index, "card index");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) module_param_array(id, charp, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) MODULE_PARM_DESC(id, "ID string");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) module_param_array(enable, bool, NULL, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) MODULE_PARM_DESC(enable, "enable card");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) module_param(queue_length, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) MODULE_PARM_DESC(queue_length, "USB queue length in microframes, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) __stringify(MIN_QUEUE_LENGTH)"-"__stringify(MAX_QUEUE_LENGTH));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) INTF_PLAYBACK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) INTF_CAPTURE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) INTF_MIDI,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) INTF_COUNT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* bits in struct ua101::states */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) USB_CAPTURE_RUNNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) USB_PLAYBACK_RUNNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) ALSA_CAPTURE_OPEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) ALSA_PLAYBACK_OPEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ALSA_CAPTURE_RUNNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) ALSA_PLAYBACK_RUNNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) CAPTURE_URB_COMPLETED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) PLAYBACK_URB_COMPLETED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) DISCONNECTED,
^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) struct ua101 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct usb_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct usb_interface *intf[INTF_COUNT];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) int card_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct snd_pcm *pcm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct list_head midi_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) u64 format_bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) unsigned int rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) unsigned int packets_per_second;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct mutex mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) unsigned long states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* FIFO to synchronize playback rate to capture rate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) unsigned int rate_feedback_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) unsigned int rate_feedback_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) u8 rate_feedback[MAX_QUEUE_LENGTH];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct list_head ready_playback_urbs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct work_struct playback_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) wait_queue_head_t alsa_capture_wait;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) wait_queue_head_t rate_feedback_wait;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) wait_queue_head_t alsa_playback_wait;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct ua101_stream {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct snd_pcm_substream *substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) unsigned int usb_pipe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) unsigned int channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) unsigned int frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) unsigned int max_packet_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) unsigned int period_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) unsigned int buffer_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) unsigned int queue_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct ua101_urb {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct urb urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct usb_iso_packet_descriptor iso_frame_desc[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct list_head ready_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) } *urbs[MAX_QUEUE_LENGTH];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) unsigned int size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) void *addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) dma_addr_t dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) } buffers[MAX_MEMORY_BUFFERS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) } capture, playback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static DEFINE_MUTEX(devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static unsigned int devices_used;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static struct usb_driver ua101_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static void abort_alsa_playback(struct ua101 *ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static void abort_alsa_capture(struct ua101 *ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static const char *usb_error_string(int err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) switch (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) case -ENODEV:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return "no device";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return "endpoint not enabled";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) case -EPIPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) return "endpoint stalled";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) case -ENOSPC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return "not enough bandwidth";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) case -ESHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return "device disabled";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) case -EHOSTUNREACH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) return "device suspended";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) case -EINVAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) case -EAGAIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) case -EFBIG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) case -EMSGSIZE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return "internal error";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return "unknown error";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static void abort_usb_capture(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (test_and_clear_bit(USB_CAPTURE_RUNNING, &ua->states)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) wake_up(&ua->alsa_capture_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) wake_up(&ua->rate_feedback_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static void abort_usb_playback(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (test_and_clear_bit(USB_PLAYBACK_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) wake_up(&ua->alsa_playback_wait);
^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 playback_urb_complete(struct urb *usb_urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct ua101_urb *urb = (struct ua101_urb *)usb_urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct ua101 *ua = urb->urb.context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (unlikely(urb->urb.status == -ENOENT || /* unlinked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) urb->urb.status == -ENODEV || /* device removed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) urb->urb.status == -ECONNRESET || /* unlinked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) urb->urb.status == -ESHUTDOWN)) { /* device disabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) abort_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) abort_alsa_playback(ua);
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (test_bit(USB_PLAYBACK_RUNNING, &ua->states)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /* append URB to FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) spin_lock_irqsave(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) list_add_tail(&urb->ready_list, &ua->ready_playback_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (ua->rate_feedback_count > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) queue_work(system_highpri_wq, &ua->playback_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ua->playback.substream->runtime->delay -=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) urb->urb.iso_frame_desc[0].length /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) ua->playback.frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) spin_unlock_irqrestore(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^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) static void first_playback_urb_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) struct ua101 *ua = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) urb->complete = playback_urb_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) playback_urb_complete(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) set_bit(PLAYBACK_URB_COMPLETED, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) wake_up(&ua->alsa_playback_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /* copy data from the ALSA ring buffer into the URB buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) static bool copy_playback_data(struct ua101_stream *stream, struct urb *urb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) unsigned int frames)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) struct snd_pcm_runtime *runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) unsigned int frame_bytes, frames1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) const u8 *source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) runtime = stream->substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) frame_bytes = stream->frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) source = runtime->dma_area + stream->buffer_pos * frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (stream->buffer_pos + frames <= runtime->buffer_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) memcpy(urb->transfer_buffer, source, frames * frame_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /* wrap around at end of ring buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) frames1 = runtime->buffer_size - stream->buffer_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) memcpy(urb->transfer_buffer, source, frames1 * frame_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) memcpy(urb->transfer_buffer + frames1 * frame_bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) runtime->dma_area, (frames - frames1) * frame_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) stream->buffer_pos += frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (stream->buffer_pos >= runtime->buffer_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) stream->buffer_pos -= runtime->buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) stream->period_pos += frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) if (stream->period_pos >= runtime->period_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) stream->period_pos -= runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) static inline void add_with_wraparound(struct ua101 *ua,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) unsigned int *value, unsigned int add)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) *value += add;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (*value >= ua->playback.queue_length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) *value -= ua->playback.queue_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) static void playback_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) struct ua101 *ua = container_of(work, struct ua101, playback_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) unsigned int frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct ua101_urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) bool do_period_elapsed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) if (unlikely(!test_bit(USB_PLAYBACK_RUNNING, &ua->states)))
^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) * Synchronizing the playback rate to the capture rate is done by using
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) * the same sequence of packet sizes for both streams.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) * Submitting a playback URB therefore requires both a ready URB and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * the size of the corresponding capture packet, i.e., both playback
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * and capture URBs must have been completed. Since the USB core does
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * not guarantee that playback and capture complete callbacks are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * called alternately, we use two FIFOs for packet sizes and read URBs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * submitting playback URBs is possible as long as both FIFOs are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * nonempty.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) spin_lock_irqsave(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) while (ua->rate_feedback_count > 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) !list_empty(&ua->ready_playback_urbs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) /* take packet size out of FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) frames = ua->rate_feedback[ua->rate_feedback_start];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) add_with_wraparound(ua, &ua->rate_feedback_start, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) ua->rate_feedback_count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /* take URB out of FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) urb = list_first_entry(&ua->ready_playback_urbs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct ua101_urb, ready_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) list_del(&urb->ready_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) /* fill packet with data or silence */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) urb->urb.iso_frame_desc[0].length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) frames * ua->playback.frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) do_period_elapsed |= copy_playback_data(&ua->playback,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) &urb->urb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) frames);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) memset(urb->urb.transfer_buffer, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) urb->urb.iso_frame_desc[0].length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) /* and off you go ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) err = usb_submit_urb(&urb->urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) if (unlikely(err < 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) spin_unlock_irqrestore(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) abort_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) abort_alsa_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) dev_err(&ua->dev->dev, "USB request error %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) err, usb_error_string(err));
^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) ua->playback.substream->runtime->delay += frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) spin_unlock_irqrestore(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (do_period_elapsed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) snd_pcm_period_elapsed(ua->playback.substream);
^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) /* copy data from the URB buffer into the ALSA ring buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) static bool copy_capture_data(struct ua101_stream *stream, struct urb *urb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) unsigned int frames)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) struct snd_pcm_runtime *runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) unsigned int frame_bytes, frames1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) u8 *dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) runtime = stream->substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) frame_bytes = stream->frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) dest = runtime->dma_area + stream->buffer_pos * frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) if (stream->buffer_pos + frames <= runtime->buffer_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) memcpy(dest, urb->transfer_buffer, frames * frame_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /* wrap around at end of ring buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) frames1 = runtime->buffer_size - stream->buffer_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) memcpy(dest, urb->transfer_buffer, frames1 * frame_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) memcpy(runtime->dma_area,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) urb->transfer_buffer + frames1 * frame_bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) (frames - frames1) * frame_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) stream->buffer_pos += frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (stream->buffer_pos >= runtime->buffer_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) stream->buffer_pos -= runtime->buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) stream->period_pos += frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) if (stream->period_pos >= runtime->period_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) stream->period_pos -= runtime->period_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) static void capture_urb_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) struct ua101 *ua = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct ua101_stream *stream = &ua->capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) unsigned int frames, write_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) bool do_period_elapsed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (unlikely(urb->status == -ENOENT || /* unlinked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) urb->status == -ENODEV || /* device removed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) urb->status == -ECONNRESET || /* unlinked */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) urb->status == -ESHUTDOWN)) /* device disabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) goto stream_stopped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (urb->status >= 0 && urb->iso_frame_desc[0].status >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) frames = urb->iso_frame_desc[0].actual_length /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) stream->frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) frames = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) spin_lock_irqsave(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (frames > 0 && test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) do_period_elapsed = copy_capture_data(stream, urb, frames);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) do_period_elapsed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (test_bit(USB_CAPTURE_RUNNING, &ua->states)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) err = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (unlikely(err < 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) spin_unlock_irqrestore(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) dev_err(&ua->dev->dev, "USB request error %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) err, usb_error_string(err));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) goto stream_stopped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) /* append packet size to FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) write_ptr = ua->rate_feedback_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) add_with_wraparound(ua, &write_ptr, ua->rate_feedback_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) ua->rate_feedback[write_ptr] = frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) if (ua->rate_feedback_count < ua->playback.queue_length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) ua->rate_feedback_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) if (ua->rate_feedback_count ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) ua->playback.queue_length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) wake_up(&ua->rate_feedback_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) * Ring buffer overflow; this happens when the playback
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) * stream is not running. Throw away the oldest entry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) * so that the playback stream, when it starts, sees
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) * the most recent packet sizes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) add_with_wraparound(ua, &ua->rate_feedback_start, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (test_bit(USB_PLAYBACK_RUNNING, &ua->states) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) !list_empty(&ua->ready_playback_urbs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) queue_work(system_highpri_wq, &ua->playback_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) spin_unlock_irqrestore(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) if (do_period_elapsed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) snd_pcm_period_elapsed(stream->substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) stream_stopped:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) abort_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) abort_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) abort_alsa_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) abort_alsa_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) static void first_capture_urb_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) struct ua101 *ua = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) urb->complete = capture_urb_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) capture_urb_complete(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) set_bit(CAPTURE_URB_COMPLETED, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) wake_up(&ua->alsa_capture_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) static int submit_stream_urbs(struct ua101 *ua, struct ua101_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) for (i = 0; i < stream->queue_length; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) int err = usb_submit_urb(&stream->urbs[i]->urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) dev_err(&ua->dev->dev, "USB request error %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) err, usb_error_string(err));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static void kill_stream_urbs(struct ua101_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) for (i = 0; i < stream->queue_length; ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) if (stream->urbs[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) usb_kill_urb(&stream->urbs[i]->urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) static int enable_iso_interface(struct ua101 *ua, unsigned int intf_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct usb_host_interface *alts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) alts = ua->intf[intf_index]->cur_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (alts->desc.bAlternateSetting != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) int err = usb_set_interface(ua->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) alts->desc.bInterfaceNumber, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) dev_err(&ua->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) "cannot initialize interface; error %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) err, usb_error_string(err));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) static void disable_iso_interface(struct ua101 *ua, unsigned int intf_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) struct usb_host_interface *alts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (!ua->intf[intf_index])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) alts = ua->intf[intf_index]->cur_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (alts->desc.bAlternateSetting != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) int err = usb_set_interface(ua->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) alts->desc.bInterfaceNumber, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) if (err < 0 && !test_bit(DISCONNECTED, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) dev_warn(&ua->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) "interface reset failed; error %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) err, usb_error_string(err));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) static void stop_usb_capture(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) clear_bit(USB_CAPTURE_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) kill_stream_urbs(&ua->capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) disable_iso_interface(ua, INTF_CAPTURE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) static int start_usb_capture(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (test_bit(DISCONNECTED, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) if (test_bit(USB_CAPTURE_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) kill_stream_urbs(&ua->capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) err = enable_iso_interface(ua, INTF_CAPTURE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) clear_bit(CAPTURE_URB_COMPLETED, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) ua->capture.urbs[0]->urb.complete = first_capture_urb_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) ua->rate_feedback_start = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) ua->rate_feedback_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) set_bit(USB_CAPTURE_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) err = submit_stream_urbs(ua, &ua->capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) stop_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) static void stop_usb_playback(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) clear_bit(USB_PLAYBACK_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) kill_stream_urbs(&ua->playback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) cancel_work_sync(&ua->playback_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) disable_iso_interface(ua, INTF_PLAYBACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) static int start_usb_playback(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) unsigned int i, frames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) if (test_bit(DISCONNECTED, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if (test_bit(USB_PLAYBACK_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) kill_stream_urbs(&ua->playback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) cancel_work_sync(&ua->playback_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) err = enable_iso_interface(ua, INTF_PLAYBACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) clear_bit(PLAYBACK_URB_COMPLETED, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) ua->playback.urbs[0]->urb.complete =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) first_playback_urb_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) spin_lock_irq(&ua->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) INIT_LIST_HEAD(&ua->ready_playback_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) spin_unlock_irq(&ua->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) * We submit the initial URBs all at once, so we have to wait for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) * packet size FIFO to be full.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) wait_event(ua->rate_feedback_wait,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) ua->rate_feedback_count >= ua->playback.queue_length ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) !test_bit(USB_CAPTURE_RUNNING, &ua->states) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) test_bit(DISCONNECTED, &ua->states));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) if (test_bit(DISCONNECTED, &ua->states)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) stop_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if (!test_bit(USB_CAPTURE_RUNNING, &ua->states)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) stop_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) for (i = 0; i < ua->playback.queue_length; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) /* all initial URBs contain silence */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) spin_lock_irq(&ua->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) frames = ua->rate_feedback[ua->rate_feedback_start];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) add_with_wraparound(ua, &ua->rate_feedback_start, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) ua->rate_feedback_count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) spin_unlock_irq(&ua->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) urb = &ua->playback.urbs[i]->urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) urb->iso_frame_desc[0].length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) frames * ua->playback.frame_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) memset(urb->transfer_buffer, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) urb->iso_frame_desc[0].length);
^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) set_bit(USB_PLAYBACK_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) err = submit_stream_urbs(ua, &ua->playback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) stop_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) static void abort_alsa_capture(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) snd_pcm_stop_xrun(ua->capture.substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) static void abort_alsa_playback(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) snd_pcm_stop_xrun(ua->playback.substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) unsigned int channels)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) substream->runtime->hw.info =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) SNDRV_PCM_INFO_MMAP |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) SNDRV_PCM_INFO_MMAP_VALID |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) SNDRV_PCM_INFO_BATCH |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) SNDRV_PCM_INFO_INTERLEAVED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) SNDRV_PCM_INFO_BLOCK_TRANSFER |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) SNDRV_PCM_INFO_FIFO_IN_FRAMES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) substream->runtime->hw.formats = ua->format_bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) substream->runtime->hw.rates = snd_pcm_rate_to_rate_bit(ua->rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) substream->runtime->hw.rate_min = ua->rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) substream->runtime->hw.rate_max = ua->rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) substream->runtime->hw.channels_min = channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) substream->runtime->hw.channels_max = channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) substream->runtime->hw.buffer_bytes_max = 45000 * 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) substream->runtime->hw.period_bytes_min = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) substream->runtime->hw.period_bytes_max = UINT_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) substream->runtime->hw.periods_min = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) substream->runtime->hw.periods_max = UINT_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) err = snd_pcm_hw_constraint_minmax(substream->runtime,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) SNDRV_PCM_HW_PARAM_PERIOD_TIME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) 1500000 / ua->packets_per_second,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) UINT_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) err = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 32, 24);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) static int capture_pcm_open(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) ua->capture.substream = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) err = set_stream_hw(ua, substream, ua->capture.channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) substream->runtime->hw.fifo_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) DIV_ROUND_CLOSEST(ua->rate, ua->packets_per_second);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) substream->runtime->delay = substream->runtime->hw.fifo_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) err = start_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) set_bit(ALSA_CAPTURE_OPEN, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) static int playback_pcm_open(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) ua->playback.substream = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) err = set_stream_hw(ua, substream, ua->playback.channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) substream->runtime->hw.fifo_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) DIV_ROUND_CLOSEST(ua->rate * ua->playback.queue_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) ua->packets_per_second);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) err = start_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) err = start_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) if (!test_bit(ALSA_CAPTURE_OPEN, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) stop_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) set_bit(ALSA_PLAYBACK_OPEN, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) static int capture_pcm_close(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) clear_bit(ALSA_CAPTURE_OPEN, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) if (!test_bit(ALSA_PLAYBACK_OPEN, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) stop_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) static int playback_pcm_close(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) stop_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) clear_bit(ALSA_PLAYBACK_OPEN, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) if (!test_bit(ALSA_CAPTURE_OPEN, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) stop_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) static int capture_pcm_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) struct snd_pcm_hw_params *hw_params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) err = start_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) static int playback_pcm_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) struct snd_pcm_hw_params *hw_params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) err = start_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) err = start_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) static int capture_pcm_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) err = start_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) * The EHCI driver schedules the first packet of an iso stream at 10 ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) * in the future, i.e., no data is actually captured for that long.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) * Take the wait here so that the stream is known to be actually
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) * running when the start trigger has been called.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) wait_event(ua->alsa_capture_wait,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) test_bit(CAPTURE_URB_COMPLETED, &ua->states) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) !test_bit(USB_CAPTURE_RUNNING, &ua->states));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) if (test_bit(DISCONNECTED, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) if (!test_bit(USB_CAPTURE_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) ua->capture.period_pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) ua->capture.buffer_pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) static int playback_pcm_prepare(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) err = start_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) err = start_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) /* see the comment in capture_pcm_prepare() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) wait_event(ua->alsa_playback_wait,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) test_bit(PLAYBACK_URB_COMPLETED, &ua->states) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) !test_bit(USB_PLAYBACK_RUNNING, &ua->states));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) if (test_bit(DISCONNECTED, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) if (!test_bit(USB_PLAYBACK_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) substream->runtime->delay = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) ua->playback.period_pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) ua->playback.buffer_pos = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) static int capture_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) if (!test_bit(USB_CAPTURE_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) set_bit(ALSA_CAPTURE_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) clear_bit(ALSA_CAPTURE_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) static int playback_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) struct ua101 *ua = substream->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) if (!test_bit(USB_PLAYBACK_RUNNING, &ua->states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) set_bit(ALSA_PLAYBACK_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) clear_bit(ALSA_PLAYBACK_RUNNING, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) static inline snd_pcm_uframes_t ua101_pcm_pointer(struct ua101 *ua,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) struct ua101_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) unsigned int pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) spin_lock_irqsave(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) pos = stream->buffer_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) spin_unlock_irqrestore(&ua->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) return pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) static snd_pcm_uframes_t capture_pcm_pointer(struct snd_pcm_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) struct ua101 *ua = subs->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) return ua101_pcm_pointer(ua, &ua->capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) static snd_pcm_uframes_t playback_pcm_pointer(struct snd_pcm_substream *subs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) struct ua101 *ua = subs->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) return ua101_pcm_pointer(ua, &ua->playback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) static const struct snd_pcm_ops capture_pcm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) .open = capture_pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) .close = capture_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) .hw_params = capture_pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) .prepare = capture_pcm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) .trigger = capture_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) .pointer = capture_pcm_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) static const struct snd_pcm_ops playback_pcm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) .open = playback_pcm_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) .close = playback_pcm_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) .hw_params = playback_pcm_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) .prepare = playback_pcm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) .trigger = playback_pcm_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) .pointer = playback_pcm_pointer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) static const struct uac_format_type_i_discrete_descriptor *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) find_format_descriptor(struct usb_interface *interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) struct usb_host_interface *alt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) u8 *extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) int extralen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) if (interface->num_altsetting != 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) dev_err(&interface->dev, "invalid num_altsetting\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) alt = &interface->altsetting[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) if (alt->desc.bNumEndpoints != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) dev_err(&interface->dev, "invalid bNumEndpoints\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) alt = &interface->altsetting[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) if (alt->desc.bNumEndpoints != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) dev_err(&interface->dev, "invalid bNumEndpoints\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) extra = alt->extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) extralen = alt->extralen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) while (extralen >= sizeof(struct usb_descriptor_header)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) struct uac_format_type_i_discrete_descriptor *desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) desc = (struct uac_format_type_i_discrete_descriptor *)extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) if (desc->bLength > extralen) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) dev_err(&interface->dev, "descriptor overflow\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) if (desc->bLength == UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(1) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) desc->bDescriptorType == USB_DT_CS_INTERFACE &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) desc->bDescriptorSubtype == UAC_FORMAT_TYPE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) if (desc->bFormatType != UAC_FORMAT_TYPE_I_PCM ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) desc->bSamFreqType != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) dev_err(&interface->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) "invalid format type\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) return desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) extralen -= desc->bLength;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) extra += desc->bLength;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) dev_err(&interface->dev, "sample format descriptor not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) static int detect_usb_format(struct ua101 *ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) const struct uac_format_type_i_discrete_descriptor *fmt_capture;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) const struct uac_format_type_i_discrete_descriptor *fmt_playback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) const struct usb_endpoint_descriptor *epd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) unsigned int rate2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) fmt_capture = find_format_descriptor(ua->intf[INTF_CAPTURE]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) fmt_playback = find_format_descriptor(ua->intf[INTF_PLAYBACK]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) if (!fmt_capture || !fmt_playback)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) switch (fmt_capture->bSubframeSize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) ua->format_bit = SNDRV_PCM_FMTBIT_S24_3LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) ua->format_bit = SNDRV_PCM_FMTBIT_S32_LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) dev_err(&ua->dev->dev, "sample width is not 24 or 32 bits\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) if (fmt_capture->bSubframeSize != fmt_playback->bSubframeSize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) dev_err(&ua->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) "playback/capture sample widths do not match\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) if (fmt_capture->bBitResolution != 24 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) fmt_playback->bBitResolution != 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) dev_err(&ua->dev->dev, "sample width is not 24 bits\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) ua->rate = combine_triple(fmt_capture->tSamFreq[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) rate2 = combine_triple(fmt_playback->tSamFreq[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) if (ua->rate != rate2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) dev_err(&ua->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) "playback/capture rates do not match: %u/%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) rate2, ua->rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) switch (ua->dev->speed) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) case USB_SPEED_FULL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) ua->packets_per_second = 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) case USB_SPEED_HIGH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) ua->packets_per_second = 8000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) dev_err(&ua->dev->dev, "unknown device speed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) ua->capture.channels = fmt_capture->bNrChannels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) ua->playback.channels = fmt_playback->bNrChannels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) ua->capture.frame_bytes =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) fmt_capture->bSubframeSize * ua->capture.channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) ua->playback.frame_bytes =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) fmt_playback->bSubframeSize * ua->playback.channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) epd = &ua->intf[INTF_CAPTURE]->altsetting[1].endpoint[0].desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) if (!usb_endpoint_is_isoc_in(epd) || usb_endpoint_maxp(epd) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) dev_err(&ua->dev->dev, "invalid capture endpoint\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) ua->capture.usb_pipe = usb_rcvisocpipe(ua->dev, usb_endpoint_num(epd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) ua->capture.max_packet_bytes = usb_endpoint_maxp(epd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) epd = &ua->intf[INTF_PLAYBACK]->altsetting[1].endpoint[0].desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) if (!usb_endpoint_is_isoc_out(epd) || usb_endpoint_maxp(epd) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) dev_err(&ua->dev->dev, "invalid playback endpoint\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) ua->playback.usb_pipe = usb_sndisocpipe(ua->dev, usb_endpoint_num(epd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) ua->playback.max_packet_bytes = usb_endpoint_maxp(epd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) static int alloc_stream_buffers(struct ua101 *ua, struct ua101_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) unsigned int remaining_packets, packets, packets_per_page, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) size_t size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) stream->queue_length = queue_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) stream->queue_length = max(stream->queue_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) (unsigned int)MIN_QUEUE_LENGTH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) stream->queue_length = min(stream->queue_length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) (unsigned int)MAX_QUEUE_LENGTH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) * The cache pool sizes used by usb_alloc_coherent() (128, 512, 2048) are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) * quite bad when used with the packet sizes of this device (e.g. 280,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) * 520, 624). Therefore, we allocate and subdivide entire pages, using
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) * a smaller buffer only for the last chunk.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) remaining_packets = stream->queue_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) packets_per_page = PAGE_SIZE / stream->max_packet_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) for (i = 0; i < ARRAY_SIZE(stream->buffers); ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) packets = min(remaining_packets, packets_per_page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) size = packets * stream->max_packet_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) stream->buffers[i].addr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) usb_alloc_coherent(ua->dev, size, GFP_KERNEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) &stream->buffers[i].dma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) if (!stream->buffers[i].addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) stream->buffers[i].size = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) remaining_packets -= packets;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) if (!remaining_packets)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) if (remaining_packets) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) dev_err(&ua->dev->dev, "too many packets\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) static void free_stream_buffers(struct ua101 *ua, struct ua101_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) for (i = 0; i < ARRAY_SIZE(stream->buffers); ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) usb_free_coherent(ua->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) stream->buffers[i].size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) stream->buffers[i].addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) stream->buffers[i].dma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) static int alloc_stream_urbs(struct ua101 *ua, struct ua101_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) void (*urb_complete)(struct urb *))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) unsigned max_packet_size = stream->max_packet_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) struct ua101_urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) unsigned int b, u = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) for (b = 0; b < ARRAY_SIZE(stream->buffers); ++b) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) unsigned int size = stream->buffers[b].size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) u8 *addr = stream->buffers[b].addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) dma_addr_t dma = stream->buffers[b].dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) while (size >= max_packet_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) if (u >= stream->queue_length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) goto bufsize_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) urb = kmalloc(sizeof(*urb), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) usb_init_urb(&urb->urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) urb->urb.dev = ua->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) urb->urb.pipe = stream->usb_pipe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) urb->urb.transfer_flags = URB_NO_TRANSFER_DMA_MAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) urb->urb.transfer_buffer = addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) urb->urb.transfer_dma = dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) urb->urb.transfer_buffer_length = max_packet_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) urb->urb.number_of_packets = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) urb->urb.interval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) urb->urb.context = ua;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) urb->urb.complete = urb_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) urb->urb.iso_frame_desc[0].offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) urb->urb.iso_frame_desc[0].length = max_packet_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) stream->urbs[u++] = urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) size -= max_packet_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) addr += max_packet_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) dma += max_packet_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) if (u == stream->queue_length)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) bufsize_error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) dev_err(&ua->dev->dev, "internal buffer size error\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) static void free_stream_urbs(struct ua101_stream *stream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) for (i = 0; i < stream->queue_length; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) kfree(stream->urbs[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) stream->urbs[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) static void free_usb_related_resources(struct ua101 *ua,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) struct usb_interface *interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) struct usb_interface *intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) free_stream_urbs(&ua->capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) free_stream_urbs(&ua->playback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) free_stream_buffers(ua, &ua->capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) free_stream_buffers(ua, &ua->playback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) for (i = 0; i < ARRAY_SIZE(ua->intf); ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) intf = ua->intf[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) ua->intf[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) if (intf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) if (intf != interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) usb_driver_release_interface(&ua101_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) static void ua101_card_free(struct snd_card *card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) struct ua101 *ua = card->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) mutex_destroy(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) static int ua101_probe(struct usb_interface *interface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) const struct usb_device_id *usb_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) static const struct snd_usb_midi_endpoint_info midi_ep = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) .out_cables = 0x0001,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) .in_cables = 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) static const struct snd_usb_audio_quirk midi_quirk = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) .type = QUIRK_MIDI_FIXED_ENDPOINT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) .data = &midi_ep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) static const int intf_numbers[2][3] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) { /* UA-101 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) [INTF_PLAYBACK] = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) [INTF_CAPTURE] = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) [INTF_MIDI] = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) { /* UA-1000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) [INTF_CAPTURE] = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) [INTF_PLAYBACK] = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) [INTF_MIDI] = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) struct ua101 *ua;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) unsigned int card_index, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) int is_ua1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) char usb_path[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) is_ua1000 = usb_id->idProduct == 0x0044;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) if (interface->altsetting->desc.bInterfaceNumber !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) intf_numbers[is_ua1000][0])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) mutex_lock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) for (card_index = 0; card_index < SNDRV_CARDS; ++card_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) if (enable[card_index] && !(devices_used & (1 << card_index)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) if (card_index >= SNDRV_CARDS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) err = snd_card_new(&interface->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) index[card_index], id[card_index], THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) sizeof(*ua), &card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) card->private_free = ua101_card_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) ua = card->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) ua->dev = interface_to_usbdev(interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) ua->card = card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) ua->card_index = card_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) INIT_LIST_HEAD(&ua->midi_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) spin_lock_init(&ua->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) mutex_init(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) INIT_LIST_HEAD(&ua->ready_playback_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) INIT_WORK(&ua->playback_work, playback_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) init_waitqueue_head(&ua->alsa_capture_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) init_waitqueue_head(&ua->rate_feedback_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) init_waitqueue_head(&ua->alsa_playback_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) ua->intf[0] = interface;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) for (i = 1; i < ARRAY_SIZE(ua->intf); ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) ua->intf[i] = usb_ifnum_to_if(ua->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) intf_numbers[is_ua1000][i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) if (!ua->intf[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) dev_err(&ua->dev->dev, "interface %u not found\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) intf_numbers[is_ua1000][i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) err = -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) err = usb_driver_claim_interface(&ua101_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) ua->intf[i], ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) ua->intf[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) err = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) err = detect_usb_format(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) name = usb_id->idProduct == 0x0044 ? "UA-1000" : "UA-101";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) strcpy(card->driver, "UA-101");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) strcpy(card->shortname, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) usb_make_path(ua->dev, usb_path, sizeof(usb_path));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) snprintf(ua->card->longname, sizeof(ua->card->longname),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) "EDIROL %s (serial %s), %u Hz at %s, %s speed", name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) ua->dev->serial ? ua->dev->serial : "?", ua->rate, usb_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) ua->dev->speed == USB_SPEED_HIGH ? "high" : "full");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) err = alloc_stream_buffers(ua, &ua->capture);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) err = alloc_stream_buffers(ua, &ua->playback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) err = alloc_stream_urbs(ua, &ua->capture, capture_urb_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) err = alloc_stream_urbs(ua, &ua->playback, playback_urb_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) err = snd_pcm_new(card, name, 0, 1, 1, &ua->pcm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) ua->pcm->private_data = ua;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) strcpy(ua->pcm->name, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_pcm_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_pcm_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) snd_pcm_set_managed_buffer_all(ua->pcm, SNDRV_DMA_TYPE_VMALLOC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) NULL, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) err = snd_usbmidi_create(card, ua->intf[INTF_MIDI],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) &ua->midi_list, &midi_quirk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) err = snd_card_register(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) usb_set_intfdata(interface, ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) devices_used |= 1 << card_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) probe_error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) free_usb_related_resources(ua, interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) snd_card_free(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) static void ua101_disconnect(struct usb_interface *interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) struct ua101 *ua = usb_get_intfdata(interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) struct list_head *midi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) if (!ua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) mutex_lock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) set_bit(DISCONNECTED, &ua->states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) wake_up(&ua->rate_feedback_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) /* make sure that userspace cannot create new requests */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) snd_card_disconnect(ua->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) /* make sure that there are no pending USB requests */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) list_for_each(midi, &ua->midi_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) snd_usbmidi_disconnect(midi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) abort_alsa_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) abort_alsa_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) mutex_lock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) stop_usb_playback(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) stop_usb_capture(ua);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) mutex_unlock(&ua->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) free_usb_related_resources(ua, interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) devices_used &= ~(1 << ua->card_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) snd_card_free_when_closed(ua->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) static const struct usb_device_id ua101_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) { USB_DEVICE(0x0582, 0x0044) }, /* UA-1000 high speed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) { USB_DEVICE(0x0582, 0x007d) }, /* UA-101 high speed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) { USB_DEVICE(0x0582, 0x008d) }, /* UA-101 full speed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) MODULE_DEVICE_TABLE(usb, ua101_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) static struct usb_driver ua101_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) .name = "snd-ua101",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) .id_table = ua101_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) .probe = ua101_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) .disconnect = ua101_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) .suspend = ua101_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) .resume = ua101_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) module_usb_driver(ua101_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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