^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) * Clock domain and sample rate management functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/bitops.h>
^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/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/usb/audio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/usb/audio-v2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/usb/audio-v3.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <sound/info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <sound/pcm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "usbaudio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "card.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "helper.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "clock.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "quirks.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static void *find_uac_clock_desc(struct usb_host_interface *iface, int id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) bool (*validator)(void *, int), u8 type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) void *cs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) while ((cs = snd_usb_find_csint_desc(iface->extra, iface->extralen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) cs, type))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) if (validator(cs, id))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) return cs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static bool validate_clock_source_v2(void *p, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct uac_clock_source_descriptor *cs = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) return cs->bClockID == id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static bool validate_clock_source_v3(void *p, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct uac3_clock_source_descriptor *cs = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return cs->bClockID == id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static bool validate_clock_selector_v2(void *p, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct uac_clock_selector_descriptor *cs = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return cs->bClockID == id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static bool validate_clock_selector_v3(void *p, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct uac3_clock_selector_descriptor *cs = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return cs->bClockID == id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static bool validate_clock_multiplier_v2(void *p, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct uac_clock_multiplier_descriptor *cs = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return cs->bClockID == id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static bool validate_clock_multiplier_v3(void *p, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct uac3_clock_multiplier_descriptor *cs = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return cs->bClockID == id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define DEFINE_FIND_HELPER(name, obj, validator, type) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static obj *name(struct usb_host_interface *iface, int id) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return find_uac_clock_desc(iface, id, validator, type); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) DEFINE_FIND_HELPER(snd_usb_find_clock_source,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct uac_clock_source_descriptor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) validate_clock_source_v2, UAC2_CLOCK_SOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) DEFINE_FIND_HELPER(snd_usb_find_clock_source_v3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct uac3_clock_source_descriptor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) validate_clock_source_v3, UAC3_CLOCK_SOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) DEFINE_FIND_HELPER(snd_usb_find_clock_selector,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct uac_clock_selector_descriptor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) validate_clock_selector_v2, UAC2_CLOCK_SELECTOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) DEFINE_FIND_HELPER(snd_usb_find_clock_selector_v3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct uac3_clock_selector_descriptor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) validate_clock_selector_v3, UAC3_CLOCK_SELECTOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) DEFINE_FIND_HELPER(snd_usb_find_clock_multiplier,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct uac_clock_multiplier_descriptor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) validate_clock_multiplier_v2, UAC2_CLOCK_MULTIPLIER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) DEFINE_FIND_HELPER(snd_usb_find_clock_multiplier_v3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct uac3_clock_multiplier_descriptor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) validate_clock_multiplier_v3, UAC3_CLOCK_MULTIPLIER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static int uac_clock_selector_get_val(struct snd_usb_audio *chip, int selector_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) unsigned char buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) UAC2_CS_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) UAC2_CX_CLOCK_SELECTOR << 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) snd_usb_ctrl_intf(chip) | (selector_id << 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) &buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static int uac_clock_selector_set_val(struct snd_usb_audio *chip, int selector_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) unsigned char pin)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) ret = snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) UAC2_CS_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) UAC2_CX_CLOCK_SELECTOR << 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) snd_usb_ctrl_intf(chip) | (selector_id << 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) &pin, sizeof(pin));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (ret != sizeof(pin)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) usb_audio_err(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) "setting selector (id %d) unexpected length %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) selector_id, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) ret = uac_clock_selector_get_val(chip, selector_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (ret != pin) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) usb_audio_err(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) "setting selector (id %d) to %x failed (current: %d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) selector_id, pin, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static bool uac_clock_source_is_valid_quirk(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct audioformat *fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) int source_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) bool ret = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) unsigned char data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct usb_device *dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) if (fmt->protocol == UAC_VERSION_2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct uac_clock_source_descriptor *cs_desc =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) snd_usb_find_clock_source(chip->ctrl_intf, source_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (!cs_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return false;
^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) * Assume the clock is valid if clock source supports only one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * single sample rate, the terminal is connected directly to it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * (there is no clock selector) and clock type is internal.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) * This is to deal with some Denon DJ controllers that always
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * reports that clock is invalid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (fmt->nr_rates == 1 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) (fmt->clock & 0xff) == cs_desc->bClockID &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) (cs_desc->bmAttributes & 0x3) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) UAC_CLOCK_SOURCE_TYPE_EXT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * MOTU MicroBook IIc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * Sample rate changes takes more than 2 seconds for this device. Clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * validity request returns false during that period.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) if (chip->usb_id == USB_ID(0x07fd, 0x0004)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) while ((!ret) && (count < 50)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) msleep(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) UAC2_CS_CONTROL_CLOCK_VALID << 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) snd_usb_ctrl_intf(chip) | (source_id << 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) &data, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) dev_warn(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) "%s(): cannot get clock validity for id %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) __func__, source_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) ret = !!data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) static bool uac_clock_source_is_valid(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) struct audioformat *fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) int source_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) unsigned char data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) struct usb_device *dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) u32 bmControls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (fmt->protocol == UAC_VERSION_3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) struct uac3_clock_source_descriptor *cs_desc =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) snd_usb_find_clock_source_v3(chip->ctrl_intf, source_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (!cs_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) bmControls = le32_to_cpu(cs_desc->bmControls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) } else { /* UAC_VERSION_1/2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct uac_clock_source_descriptor *cs_desc =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) snd_usb_find_clock_source(chip->ctrl_intf, source_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (!cs_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) bmControls = cs_desc->bmControls;
^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) /* If a clock source can't tell us whether it's valid, we assume it is */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) if (!uac_v2v3_control_is_readable(bmControls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) UAC2_CS_CONTROL_CLOCK_VALID))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) UAC2_CS_CONTROL_CLOCK_VALID << 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) snd_usb_ctrl_intf(chip) | (source_id << 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) &data, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) dev_warn(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) "%s(): cannot get clock validity for id %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) __func__, source_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) return uac_clock_source_is_valid_quirk(chip, fmt, source_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) static int __uac_clock_find_source(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct audioformat *fmt, int entity_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) unsigned long *visited, bool validate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct uac_clock_source_descriptor *source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) struct uac_clock_selector_descriptor *selector;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) struct uac_clock_multiplier_descriptor *multiplier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) entity_id &= 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (test_and_set_bit(entity_id, visited)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) usb_audio_warn(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) "%s(): recursive clock topology detected, id %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) __func__, entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) /* first, see if the ID we're looking for is a clock source already */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) source = snd_usb_find_clock_source(chip->ctrl_intf, entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) if (source) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) entity_id = source->bClockID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) if (validate && !uac_clock_source_is_valid(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) entity_id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) usb_audio_err(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) "clock source %d is not valid, cannot use\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return entity_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) selector = snd_usb_find_clock_selector(chip->ctrl_intf, entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) if (selector) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) int ret, i, cur, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) /* the entity ID we are looking for is a selector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * find out what it currently selects */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) ret = uac_clock_selector_get_val(chip, selector->bClockID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) /* Selector values are one-based */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (ret > selector->bNrInPins || ret < 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) usb_audio_err(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) "%s(): selector reported illegal value, id %d, ret %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) __func__, selector->bClockID, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) cur = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) ret = __uac_clock_find_source(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) selector->baCSourceID[ret - 1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) visited, validate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) if (ret > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * For Samsung USBC Headset (AKG), setting clock selector again
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * will result in incorrect default clock setting problems
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) if (chip->usb_id == USB_ID(0x04e8, 0xa051))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) err = uac_clock_selector_set_val(chip, entity_id, cur);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (!validate || ret > 0 || !chip->autoclock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* The current clock source is invalid, try others. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) for (i = 1; i <= selector->bNrInPins; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) if (i == cur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ret = __uac_clock_find_source(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) selector->baCSourceID[i - 1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) visited, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) err = uac_clock_selector_set_val(chip, entity_id, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) usb_audio_info(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) "found and selected valid clock source %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /* FIXME: multipliers only act as pass-thru element for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) multiplier = snd_usb_find_clock_multiplier(chip->ctrl_intf, entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (multiplier)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return __uac_clock_find_source(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) multiplier->bCSourceID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) visited, validate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) static int __uac3_clock_find_source(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) struct audioformat *fmt, int entity_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) unsigned long *visited, bool validate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) struct uac3_clock_source_descriptor *source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) struct uac3_clock_selector_descriptor *selector;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) struct uac3_clock_multiplier_descriptor *multiplier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) entity_id &= 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (test_and_set_bit(entity_id, visited)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) usb_audio_warn(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) "%s(): recursive clock topology detected, id %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) __func__, entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) /* first, see if the ID we're looking for is a clock source already */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) source = snd_usb_find_clock_source_v3(chip->ctrl_intf, entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (source) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) entity_id = source->bClockID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) if (validate && !uac_clock_source_is_valid(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) entity_id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) usb_audio_err(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) "clock source %d is not valid, cannot use\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return entity_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) selector = snd_usb_find_clock_selector_v3(chip->ctrl_intf, entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (selector) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) int ret, i, cur, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) /* the entity ID we are looking for is a selector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) * find out what it currently selects */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) ret = uac_clock_selector_get_val(chip, selector->bClockID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) /* Selector values are one-based */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (ret > selector->bNrInPins || ret < 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) usb_audio_err(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) "%s(): selector reported illegal value, id %d, ret %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) __func__, selector->bClockID, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) return -EINVAL;
^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) cur = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) ret = __uac3_clock_find_source(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) selector->baCSourceID[ret - 1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) visited, validate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) if (ret > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) err = uac_clock_selector_set_val(chip, entity_id, cur);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) if (!validate || ret > 0 || !chip->autoclock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) /* The current clock source is invalid, try others. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) for (i = 1; i <= selector->bNrInPins; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (i == cur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) ret = __uac3_clock_find_source(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) selector->baCSourceID[i - 1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) visited, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) err = uac_clock_selector_set_val(chip, entity_id, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) usb_audio_info(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) "found and selected valid clock source %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) /* FIXME: multipliers only act as pass-thru element for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) multiplier = snd_usb_find_clock_multiplier_v3(chip->ctrl_intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) entity_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (multiplier)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return __uac3_clock_find_source(chip, fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) multiplier->bCSourceID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) visited, validate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return -EINVAL;
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) * For all kinds of sample rate settings and other device queries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) * the clock source (end-leaf) must be used. However, clock selectors,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) * clock multipliers and sample rate converters may be specified as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) * clock source input to terminal. This functions walks the clock path
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * to its end and tries to find the source.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * The 'visited' bitfield is used internally to detect recursive loops.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * Returns the clock source UnitID (>=0) on success, or an error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) int snd_usb_clock_find_source(struct snd_usb_audio *chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) struct audioformat *fmt, bool validate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) DECLARE_BITMAP(visited, 256);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) memset(visited, 0, sizeof(visited));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) switch (fmt->protocol) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) case UAC_VERSION_2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return __uac_clock_find_source(chip, fmt, fmt->clock, visited,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) validate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) case UAC_VERSION_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) return __uac3_clock_find_source(chip, fmt, fmt->clock, visited,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) validate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) static int set_sample_rate_v1(struct snd_usb_audio *chip, int iface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) struct usb_host_interface *alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) struct audioformat *fmt, int rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) struct usb_device *dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) unsigned int ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) unsigned char data[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) int err, crate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (get_iface_desc(alts)->bNumEndpoints < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) ep = get_endpoint(alts, 0)->bEndpointAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) /* if endpoint doesn't have sampling rate control, bail out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) if (!(fmt->attributes & UAC_EP_CS_ATTR_SAMPLE_RATE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) data[0] = rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) data[1] = rate >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) data[2] = rate >> 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) data, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) dev_err(&dev->dev, "%d:%d: cannot set freq %d to ep %#x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) iface, fmt->altsetting, rate, ep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) /* Don't check the sample rate for devices which we know don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) * support reading */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) if (snd_usb_get_sample_rate_quirk(chip))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) /* the firmware is likely buggy, don't repeat to fail too many times */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if (chip->sample_rate_read_error > 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) data, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) dev_err(&dev->dev, "%d:%d: cannot get freq at ep %#x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) iface, fmt->altsetting, ep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) chip->sample_rate_read_error++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return 0; /* some devices don't support reading */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) crate = data[0] | (data[1] << 8) | (data[2] << 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (!crate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) dev_info(&dev->dev, "failed to read current rate; disabling the check\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) chip->sample_rate_read_error = 3; /* three strikes, see above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) if (crate != rate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) dev_warn(&dev->dev, "current rate %d is different from the runtime rate %d\n", crate, rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) // runtime->rate = crate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) static int get_sample_rate_v2v3(struct snd_usb_audio *chip, int iface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) int altsetting, int clock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) struct usb_device *dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) __le32 data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) UAC2_CS_CONTROL_SAM_FREQ << 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) snd_usb_ctrl_intf(chip) | (clock << 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) &data, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) dev_warn(&dev->dev, "%d:%d: cannot get freq (v2/v3): err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) iface, altsetting, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return le32_to_cpu(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) static int set_sample_rate_v2v3(struct snd_usb_audio *chip, int iface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) struct usb_host_interface *alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) struct audioformat *fmt, int rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) struct usb_device *dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) __le32 data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) int err, cur_rate, prev_rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) int clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) bool writeable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) u32 bmControls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) /* First, try to find a valid clock. This may trigger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) * automatic clock selection if the current clock is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) * valid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) clock = snd_usb_clock_find_source(chip, fmt, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) if (clock < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) /* We did not find a valid clock, but that might be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) * because the current sample rate does not match an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) * external clock source. Try again without validation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) * and we will do another validation after setting the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) * rate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) clock = snd_usb_clock_find_source(chip, fmt, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) if (clock < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) return clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) prev_rate = get_sample_rate_v2v3(chip, iface, fmt->altsetting, clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) if (prev_rate == rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) goto validation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) if (fmt->protocol == UAC_VERSION_3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) struct uac3_clock_source_descriptor *cs_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) cs_desc = snd_usb_find_clock_source_v3(chip->ctrl_intf, clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) bmControls = le32_to_cpu(cs_desc->bmControls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) struct uac_clock_source_descriptor *cs_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) cs_desc = snd_usb_find_clock_source(chip->ctrl_intf, clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) bmControls = cs_desc->bmControls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) writeable = uac_v2v3_control_is_writeable(bmControls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) UAC2_CS_CONTROL_SAM_FREQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) if (writeable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) data = cpu_to_le32(rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) UAC2_CS_CONTROL_SAM_FREQ << 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) snd_usb_ctrl_intf(chip) | (clock << 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) &data, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) usb_audio_err(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) "%d:%d: cannot set freq %d (v2/v3): err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) iface, fmt->altsetting, rate, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) cur_rate = get_sample_rate_v2v3(chip, iface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) fmt->altsetting, clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) cur_rate = prev_rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) if (cur_rate != rate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) if (!writeable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) usb_audio_warn(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) "%d:%d: freq mismatch (RO clock): req %d, clock runs @%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) iface, fmt->altsetting, rate, cur_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) usb_audio_dbg(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) "current rate %d is different from the runtime rate %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) cur_rate, rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) /* Some devices doesn't respond to sample rate changes while the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) * interface is active. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (rate != prev_rate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) usb_set_interface(dev, iface, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) snd_vendor_set_interface(dev, alts, iface, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) snd_usb_set_interface_quirk(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) usb_set_interface(dev, iface, fmt->altsetting);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) snd_vendor_set_interface(dev, alts, iface, fmt->altsetting);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) snd_usb_set_interface_quirk(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) validation:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) /* validate clock after rate change */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) if (!uac_clock_source_is_valid(chip, fmt, clock))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) int snd_usb_init_sample_rate(struct snd_usb_audio *chip, int iface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) struct usb_host_interface *alts,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) struct audioformat *fmt, int rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) switch (fmt->protocol) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) case UAC_VERSION_1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) return set_sample_rate_v1(chip, iface, alts, fmt, rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) case UAC_VERSION_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) if (chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (rate != UAC3_BADD_SAMPLING_RATE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) case UAC_VERSION_2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) return set_sample_rate_v2v3(chip, iface, alts, fmt, rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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