^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Behringer BCD2000 driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2014 Mario Kicherer (dev@kicherer.org)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/bitmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/usb/audio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <sound/initval.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <sound/rawmidi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define PREFIX "snd-bcd2000: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define BUFSIZE 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static const struct usb_device_id id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) { USB_DEVICE(0x1397, 0x00bd) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static const unsigned char device_cmd_prefix[] = {0x03, 0x00};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static const unsigned char bcd2000_init_sequence[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 0x07, 0x00, 0x00, 0x00, 0x78, 0x48, 0x1c, 0x81,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 0xc4, 0x00, 0x00, 0x00, 0x5e, 0x53, 0x4a, 0xf7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 0x18, 0xfa, 0x11, 0xff, 0x6c, 0xf3, 0x90, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 0x18, 0xfa, 0x11, 0xff, 0x14, 0x00, 0x00, 0x00,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 0x00, 0x00, 0x00, 0x00, 0xf2, 0x34, 0x4a, 0xf7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 0x18, 0xfa, 0x11, 0xff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct bcd2000 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct usb_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct usb_interface *intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int card_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int midi_out_active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct snd_rawmidi *rmidi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct snd_rawmidi_substream *midi_receive_substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct snd_rawmidi_substream *midi_out_substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) unsigned char midi_in_buf[BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) unsigned char midi_out_buf[BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct urb *midi_out_urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct urb *midi_in_urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct usb_anchor anchor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static DEFINE_MUTEX(devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static DECLARE_BITMAP(devices_used, SNDRV_CARDS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static struct usb_driver bcd2000_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #ifdef CONFIG_SND_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static void bcd2000_dump_buffer(const char *prefix, const char *buf, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) print_hex_dump(KERN_DEBUG, prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) DUMP_PREFIX_NONE, 16, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) buf, len, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static void bcd2000_dump_buffer(const char *prefix, const char *buf, int len) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static int bcd2000_midi_input_open(struct snd_rawmidi_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static int bcd2000_midi_input_close(struct snd_rawmidi_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* (de)register midi substream from client */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static void bcd2000_midi_input_trigger(struct snd_rawmidi_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) int up)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct bcd2000 *bcd2k = substream->rmidi->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) bcd2k->midi_receive_substream = up ? substream : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static void bcd2000_midi_handle_input(struct bcd2000 *bcd2k,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) const unsigned char *buf, unsigned int buf_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) unsigned int payload_length, tocopy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct snd_rawmidi_substream *midi_receive_substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) midi_receive_substream = READ_ONCE(bcd2k->midi_receive_substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (!midi_receive_substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) bcd2000_dump_buffer(PREFIX "received from device: ", buf, buf_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (buf_len < 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) payload_length = buf[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /* ignore packets without payload */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (payload_length == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) tocopy = min(payload_length, buf_len-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) bcd2000_dump_buffer(PREFIX "sending to userspace: ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) &buf[1], tocopy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) snd_rawmidi_receive(midi_receive_substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) &buf[1], tocopy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static void bcd2000_midi_send(struct bcd2000 *bcd2k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) int len, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct snd_rawmidi_substream *midi_out_substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) BUILD_BUG_ON(sizeof(device_cmd_prefix) >= BUFSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) midi_out_substream = READ_ONCE(bcd2k->midi_out_substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (!midi_out_substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /* copy command prefix bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) memcpy(bcd2k->midi_out_buf, device_cmd_prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) sizeof(device_cmd_prefix));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * get MIDI packet and leave space for command prefix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * and payload length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) len = snd_rawmidi_transmit(midi_out_substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) bcd2k->midi_out_buf + 3, BUFSIZE - 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (len < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) dev_err(&bcd2k->dev->dev, "%s: snd_rawmidi_transmit error %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) __func__, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (len <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /* set payload length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) bcd2k->midi_out_buf[2] = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) bcd2k->midi_out_urb->transfer_buffer_length = BUFSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) bcd2000_dump_buffer(PREFIX "sending to device: ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) bcd2k->midi_out_buf, len+3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) /* send packet to the BCD2000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) ret = usb_submit_urb(bcd2k->midi_out_urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) dev_err(&bcd2k->dev->dev, PREFIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) "%s (%p): usb_submit_urb() failed, ret=%d, len=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) __func__, midi_out_substream, ret, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) bcd2k->midi_out_active = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static int bcd2000_midi_output_open(struct snd_rawmidi_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static int bcd2000_midi_output_close(struct snd_rawmidi_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct bcd2000 *bcd2k = substream->rmidi->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (bcd2k->midi_out_active) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) usb_kill_urb(bcd2k->midi_out_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) bcd2k->midi_out_active = 0;
^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) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) /* (de)register midi substream from client */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static void bcd2000_midi_output_trigger(struct snd_rawmidi_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) int up)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct bcd2000 *bcd2k = substream->rmidi->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) if (up) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) bcd2k->midi_out_substream = substream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) /* check if there is data userspace wants to send */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (!bcd2k->midi_out_active)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) bcd2000_midi_send(bcd2k);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) bcd2k->midi_out_substream = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) static void bcd2000_output_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct bcd2000 *bcd2k = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) bcd2k->midi_out_active = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) if (urb->status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) dev_warn(&urb->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) PREFIX "output urb->status: %d\n", urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (urb->status == -ESHUTDOWN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) /* check if there is more data userspace wants to send */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) bcd2000_midi_send(bcd2k);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static void bcd2000_input_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct bcd2000 *bcd2k = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (urb->status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) dev_warn(&urb->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) PREFIX "input urb->status: %i\n", urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) if (!bcd2k || urb->status == -ESHUTDOWN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (urb->actual_length > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) bcd2000_midi_handle_input(bcd2k, urb->transfer_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /* return URB to device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) ret = usb_submit_urb(bcd2k->midi_in_urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) dev_err(&bcd2k->dev->dev, PREFIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) "%s: usb_submit_urb() failed, ret=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static const struct snd_rawmidi_ops bcd2000_midi_output = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) .open = bcd2000_midi_output_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) .close = bcd2000_midi_output_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) .trigger = bcd2000_midi_output_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) static const struct snd_rawmidi_ops bcd2000_midi_input = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) .open = bcd2000_midi_input_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) .close = bcd2000_midi_input_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) .trigger = bcd2000_midi_input_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) static void bcd2000_init_device(struct bcd2000 *bcd2k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) init_usb_anchor(&bcd2k->anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) usb_anchor_urb(bcd2k->midi_out_urb, &bcd2k->anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) usb_anchor_urb(bcd2k->midi_in_urb, &bcd2k->anchor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /* copy init sequence into buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) memcpy(bcd2k->midi_out_buf, bcd2000_init_sequence, 52);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) bcd2k->midi_out_urb->transfer_buffer_length = 52;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /* submit sequence */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) ret = usb_submit_urb(bcd2k->midi_out_urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) dev_err(&bcd2k->dev->dev, PREFIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) "%s: usb_submit_urb() out failed, ret=%d: ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) bcd2k->midi_out_active = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) /* pass URB to device to enable button and controller events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) ret = usb_submit_urb(bcd2k->midi_in_urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) dev_err(&bcd2k->dev->dev, PREFIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) "%s: usb_submit_urb() in failed, ret=%d: ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) /* ensure initialization is finished */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) usb_wait_anchor_empty_timeout(&bcd2k->anchor, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) static int bcd2000_init_midi(struct bcd2000 *bcd2k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) struct snd_rawmidi *rmidi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) ret = snd_rawmidi_new(bcd2k->card, bcd2k->card->shortname, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 1, /* output */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 1, /* input */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) &rmidi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) strlcpy(rmidi->name, bcd2k->card->shortname, sizeof(rmidi->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) rmidi->private_data = bcd2k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) &bcd2000_midi_output);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) &bcd2000_midi_input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) bcd2k->rmidi = rmidi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) bcd2k->midi_in_urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) bcd2k->midi_out_urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) if (!bcd2k->midi_in_urb || !bcd2k->midi_out_urb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) dev_err(&bcd2k->dev->dev, PREFIX "usb_alloc_urb failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) usb_fill_int_urb(bcd2k->midi_in_urb, bcd2k->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) usb_rcvintpipe(bcd2k->dev, 0x81),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) bcd2k->midi_in_buf, BUFSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) bcd2000_input_complete, bcd2k, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) usb_fill_int_urb(bcd2k->midi_out_urb, bcd2k->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) usb_sndintpipe(bcd2k->dev, 0x1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) bcd2k->midi_out_buf, BUFSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) bcd2000_output_complete, bcd2k, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* sanity checks of EPs before actually submitting */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (usb_urb_ep_type_check(bcd2k->midi_in_urb) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) usb_urb_ep_type_check(bcd2k->midi_out_urb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) dev_err(&bcd2k->dev->dev, "invalid MIDI EP\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) bcd2000_init_device(bcd2k);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static void bcd2000_free_usb_related_resources(struct bcd2000 *bcd2k,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) struct usb_interface *interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) /* usb_kill_urb not necessary, urb is aborted automatically */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) usb_free_urb(bcd2k->midi_out_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) usb_free_urb(bcd2k->midi_in_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (bcd2k->intf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) usb_set_intfdata(bcd2k->intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) bcd2k->intf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) static int bcd2000_probe(struct usb_interface *interface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) const struct usb_device_id *usb_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct snd_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) struct bcd2000 *bcd2k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) unsigned int card_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) char usb_path[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) mutex_lock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) for (card_index = 0; card_index < SNDRV_CARDS; ++card_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) if (!test_bit(card_index, devices_used))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (card_index >= SNDRV_CARDS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) err = snd_card_new(&interface->dev, index[card_index], id[card_index],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) THIS_MODULE, sizeof(*bcd2k), &card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) bcd2k = card->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) bcd2k->dev = interface_to_usbdev(interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) bcd2k->card = card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) bcd2k->card_index = card_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) bcd2k->intf = interface;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) snd_card_set_dev(card, &interface->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) strncpy(card->driver, "snd-bcd2000", sizeof(card->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) strncpy(card->shortname, "BCD2000", sizeof(card->shortname));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) usb_make_path(bcd2k->dev, usb_path, sizeof(usb_path));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) snprintf(bcd2k->card->longname, sizeof(bcd2k->card->longname),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) "Behringer BCD2000 at %s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) usb_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) err = bcd2000_init_midi(bcd2k);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) err = snd_card_register(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) goto probe_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) usb_set_intfdata(interface, bcd2k);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) set_bit(card_index, devices_used);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) probe_error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) dev_info(&bcd2k->dev->dev, PREFIX "error during probing");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) bcd2000_free_usb_related_resources(bcd2k, interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) snd_card_free(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) mutex_unlock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) static void bcd2000_disconnect(struct usb_interface *interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) struct bcd2000 *bcd2k = usb_get_intfdata(interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) if (!bcd2k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) mutex_lock(&devices_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) /* make sure that userspace cannot create new requests */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) snd_card_disconnect(bcd2k->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) bcd2000_free_usb_related_resources(bcd2k, interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) clear_bit(bcd2k->card_index, devices_used);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) snd_card_free_when_closed(bcd2k->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) mutex_unlock(&devices_mutex);
^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 struct usb_driver bcd2000_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) .name = "snd-bcd2000",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) .probe = bcd2000_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) .disconnect = bcd2000_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) .id_table = id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) module_usb_driver(bcd2000_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) MODULE_DEVICE_TABLE(usb, id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) MODULE_AUTHOR("Mario Kicherer, dev@kicherer.org");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) MODULE_DESCRIPTION("Behringer BCD2000 driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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