cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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dice-tcelectronic.c (2608B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * dice-tc_electronic.c - a part of driver for DICE based devices
      4 *
      5 * Copyright (c) 2018 Takashi Sakamoto
      6 */
      7
      8#include "dice.h"
      9
     10struct dice_tc_spec {
     11	unsigned int tx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
     12	unsigned int rx_pcm_chs[MAX_STREAMS][SND_DICE_RATE_MODE_COUNT];
     13	bool has_midi;
     14};
     15
     16static const struct dice_tc_spec desktop_konnekt6 = {
     17	.tx_pcm_chs = {{6, 6, 2}, {0, 0, 0} },
     18	.rx_pcm_chs = {{6, 6, 4}, {0, 0, 0} },
     19	.has_midi = false,
     20};
     21
     22static const struct dice_tc_spec impact_twin = {
     23	.tx_pcm_chs = {{14, 10, 6}, {0, 0, 0} },
     24	.rx_pcm_chs = {{14, 10, 6}, {0, 0, 0} },
     25	.has_midi = true,
     26};
     27
     28static const struct dice_tc_spec konnekt_8 = {
     29	.tx_pcm_chs = {{4, 4, 3}, {0, 0, 0} },
     30	.rx_pcm_chs = {{4, 4, 3}, {0, 0, 0} },
     31	.has_midi = true,
     32};
     33
     34static const struct dice_tc_spec konnekt_24d = {
     35	.tx_pcm_chs = {{16, 16, 6}, {0, 0, 0} },
     36	.rx_pcm_chs = {{16, 16, 6}, {0, 0, 0} },
     37	.has_midi = true,
     38};
     39
     40static const struct dice_tc_spec konnekt_live = {
     41	.tx_pcm_chs = {{16, 16, 6}, {0, 0, 0} },
     42	.rx_pcm_chs = {{16, 16, 6}, {0, 0, 0} },
     43	.has_midi = true,
     44};
     45
     46static const struct dice_tc_spec studio_konnekt_48 = {
     47	.tx_pcm_chs = {{16, 16, 8}, {16, 16, 7} },
     48	.rx_pcm_chs = {{16, 16, 8}, {14, 14, 7} },
     49	.has_midi = true,
     50};
     51
     52static const struct dice_tc_spec digital_konnekt_x32 = {
     53	.tx_pcm_chs = {{16, 16, 4}, {0, 0, 0} },
     54	.rx_pcm_chs = {{16, 16, 4}, {0, 0, 0} },
     55	.has_midi = false,
     56};
     57
     58int snd_dice_detect_tcelectronic_formats(struct snd_dice *dice)
     59{
     60	static const struct {
     61		u32 model_id;
     62		const struct dice_tc_spec *spec;
     63	} *entry, entries[] = {
     64		{0x00000020, &konnekt_24d},
     65		{0x00000021, &konnekt_8},
     66		{0x00000022, &studio_konnekt_48},
     67		{0x00000023, &konnekt_live},
     68		{0x00000024, &desktop_konnekt6},
     69		{0x00000027, &impact_twin},
     70		{0x00000030, &digital_konnekt_x32},
     71	};
     72	struct fw_csr_iterator it;
     73	int key, val, model_id;
     74	int i;
     75
     76	model_id = 0;
     77	fw_csr_iterator_init(&it, dice->unit->directory);
     78	while (fw_csr_iterator_next(&it, &key, &val)) {
     79		if (key == CSR_MODEL) {
     80			model_id = val;
     81			break;
     82		}
     83	}
     84
     85	for (i = 0; i < ARRAY_SIZE(entries); ++i) {
     86		entry = entries + i;
     87		if (entry->model_id == model_id)
     88			break;
     89	}
     90	if (i == ARRAY_SIZE(entries))
     91		return -ENODEV;
     92
     93	memcpy(dice->tx_pcm_chs, entry->spec->tx_pcm_chs,
     94	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
     95	memcpy(dice->rx_pcm_chs, entry->spec->rx_pcm_chs,
     96	       MAX_STREAMS * SND_DICE_RATE_MODE_COUNT * sizeof(unsigned int));
     97
     98	if (entry->spec->has_midi) {
     99		dice->tx_midi_ports[0] = 1;
    100		dice->rx_midi_ports[0] = 1;
    101	}
    102
    103	return 0;
    104}