^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) * Apple Onboard Audio driver for Toonie codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * This is a driver for the toonie codec chip. This chip is present
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * on the Mac Mini and is nothing but a DAC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) MODULE_DESCRIPTION("toonie codec driver for snd-aoa");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "../aoa.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "../soundbus/soundbus.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define PFX "snd-aoa-codec-toonie: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct toonie {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct aoa_codec codec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define codec_to_toonie(c) container_of(c, struct toonie, codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static int toonie_dev_register(struct snd_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static const struct snd_device_ops ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .dev_register = toonie_dev_register,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static struct transfer_info toonie_transfers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* This thing *only* has analog output,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * the rates are taken from Info.plist
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * from Darwin. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .formats = SNDRV_PCM_FMTBIT_S16_BE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) SNDRV_PCM_FMTBIT_S24_BE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .rates = SNDRV_PCM_RATE_32000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) SNDRV_PCM_RATE_44100 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) SNDRV_PCM_RATE_48000 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) SNDRV_PCM_RATE_88200 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) SNDRV_PCM_RATE_96000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static int toonie_usable(struct codec_info_item *cii,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct transfer_info *ti,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct transfer_info *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return 1;
^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) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static int toonie_suspend(struct codec_info_item *cii, pm_message_t state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* can we turn it off somehow? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int toonie_resume(struct codec_info_item *cii)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #endif /* CONFIG_PM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static struct codec_info toonie_codec_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .transfers = toonie_transfers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .sysclock_factor = 256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .bus_factor = 64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .usable = toonie_usable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .suspend = toonie_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .resume = toonie_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static int toonie_init_codec(struct aoa_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct toonie *toonie = codec_to_toonie(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) /* nothing connected? what a joke! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) if (toonie->codec.connected != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) return -ENOTCONN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if (aoa_snd_device_new(SNDRV_DEV_CODEC, toonie, &ops)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) printk(KERN_ERR PFX "failed to create toonie snd device!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (toonie->codec.soundbus_dev->attach_codec(toonie->codec.soundbus_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) aoa_get_card(),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) &toonie_codec_info, toonie)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) printk(KERN_ERR PFX "error creating toonie pcm\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) snd_device_free(aoa_get_card(), toonie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static void toonie_exit_codec(struct aoa_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct toonie *toonie = codec_to_toonie(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (!toonie->codec.soundbus_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) printk(KERN_ERR PFX "toonie_exit_codec called without soundbus_dev!\n");
^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) toonie->codec.soundbus_dev->detach_codec(toonie->codec.soundbus_dev, toonie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static struct toonie *toonie;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static int __init toonie_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) toonie = kzalloc(sizeof(struct toonie), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (!toonie)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) strlcpy(toonie->codec.name, "toonie", sizeof(toonie->codec.name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) toonie->codec.owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) toonie->codec.init = toonie_init_codec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) toonie->codec.exit = toonie_exit_codec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (aoa_codec_register(&toonie->codec)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) kfree(toonie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return 0;
^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) static void __exit toonie_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) aoa_codec_unregister(&toonie->codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) kfree(toonie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) module_init(toonie_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) module_exit(toonie_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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