1*b67eb152SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
265c3ac88SClemens Ladisch /*
3b532d6b8SClemens Ladisch * helper functions for HDMI models (Xonar HDAV1.3/HDAV1.3 Slim)
465c3ac88SClemens Ladisch *
565c3ac88SClemens Ladisch * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
665c3ac88SClemens Ladisch */
765c3ac88SClemens Ladisch
865c3ac88SClemens Ladisch #include <linux/pci.h>
965c3ac88SClemens Ladisch #include <linux/delay.h>
1065c3ac88SClemens Ladisch #include <sound/asoundef.h>
1165c3ac88SClemens Ladisch #include <sound/control.h>
1265c3ac88SClemens Ladisch #include <sound/core.h>
1365c3ac88SClemens Ladisch #include <sound/pcm.h>
1465c3ac88SClemens Ladisch #include <sound/pcm_params.h>
1565c3ac88SClemens Ladisch #include <sound/tlv.h>
1665c3ac88SClemens Ladisch #include "xonar.h"
1765c3ac88SClemens Ladisch
hdmi_write_command(struct oxygen * chip,u8 command,unsigned int count,const u8 * params)1865c3ac88SClemens Ladisch static void hdmi_write_command(struct oxygen *chip, u8 command,
1965c3ac88SClemens Ladisch unsigned int count, const u8 *params)
2065c3ac88SClemens Ladisch {
2165c3ac88SClemens Ladisch unsigned int i;
2265c3ac88SClemens Ladisch u8 checksum;
2365c3ac88SClemens Ladisch
2465c3ac88SClemens Ladisch oxygen_write_uart(chip, 0xfb);
2565c3ac88SClemens Ladisch oxygen_write_uart(chip, 0xef);
2665c3ac88SClemens Ladisch oxygen_write_uart(chip, command);
2765c3ac88SClemens Ladisch oxygen_write_uart(chip, count);
2865c3ac88SClemens Ladisch for (i = 0; i < count; ++i)
2965c3ac88SClemens Ladisch oxygen_write_uart(chip, params[i]);
3065c3ac88SClemens Ladisch checksum = 0xfb + 0xef + command + count;
3165c3ac88SClemens Ladisch for (i = 0; i < count; ++i)
3265c3ac88SClemens Ladisch checksum += params[i];
3365c3ac88SClemens Ladisch oxygen_write_uart(chip, checksum);
3465c3ac88SClemens Ladisch }
3565c3ac88SClemens Ladisch
xonar_hdmi_init_commands(struct oxygen * chip,struct xonar_hdmi * hdmi)3665c3ac88SClemens Ladisch static void xonar_hdmi_init_commands(struct oxygen *chip,
3765c3ac88SClemens Ladisch struct xonar_hdmi *hdmi)
3865c3ac88SClemens Ladisch {
3965c3ac88SClemens Ladisch u8 param;
4065c3ac88SClemens Ladisch
4165c3ac88SClemens Ladisch oxygen_reset_uart(chip);
4265c3ac88SClemens Ladisch param = 0;
4365c3ac88SClemens Ladisch hdmi_write_command(chip, 0x61, 1, ¶m);
4465c3ac88SClemens Ladisch param = 1;
4565c3ac88SClemens Ladisch hdmi_write_command(chip, 0x74, 1, ¶m);
4665c3ac88SClemens Ladisch hdmi_write_command(chip, 0x54, 5, hdmi->params);
4765c3ac88SClemens Ladisch }
4865c3ac88SClemens Ladisch
xonar_hdmi_init(struct oxygen * chip,struct xonar_hdmi * hdmi)4965c3ac88SClemens Ladisch void xonar_hdmi_init(struct oxygen *chip, struct xonar_hdmi *hdmi)
5065c3ac88SClemens Ladisch {
5165c3ac88SClemens Ladisch hdmi->params[1] = IEC958_AES3_CON_FS_48000;
5265c3ac88SClemens Ladisch hdmi->params[4] = 1;
5365c3ac88SClemens Ladisch xonar_hdmi_init_commands(chip, hdmi);
5465c3ac88SClemens Ladisch }
5565c3ac88SClemens Ladisch
xonar_hdmi_cleanup(struct oxygen * chip)5665c3ac88SClemens Ladisch void xonar_hdmi_cleanup(struct oxygen *chip)
5765c3ac88SClemens Ladisch {
5865c3ac88SClemens Ladisch u8 param = 0;
5965c3ac88SClemens Ladisch
6065c3ac88SClemens Ladisch hdmi_write_command(chip, 0x74, 1, ¶m);
6165c3ac88SClemens Ladisch }
6265c3ac88SClemens Ladisch
xonar_hdmi_resume(struct oxygen * chip,struct xonar_hdmi * hdmi)6365c3ac88SClemens Ladisch void xonar_hdmi_resume(struct oxygen *chip, struct xonar_hdmi *hdmi)
6465c3ac88SClemens Ladisch {
6565c3ac88SClemens Ladisch xonar_hdmi_init_commands(chip, hdmi);
6665c3ac88SClemens Ladisch }
6765c3ac88SClemens Ladisch
xonar_hdmi_pcm_hardware_filter(unsigned int channel,struct snd_pcm_hardware * hardware)6865c3ac88SClemens Ladisch void xonar_hdmi_pcm_hardware_filter(unsigned int channel,
6965c3ac88SClemens Ladisch struct snd_pcm_hardware *hardware)
7065c3ac88SClemens Ladisch {
7165c3ac88SClemens Ladisch if (channel == PCM_MULTICH) {
7265c3ac88SClemens Ladisch hardware->rates = SNDRV_PCM_RATE_44100 |
7365c3ac88SClemens Ladisch SNDRV_PCM_RATE_48000 |
7465c3ac88SClemens Ladisch SNDRV_PCM_RATE_96000 |
7565c3ac88SClemens Ladisch SNDRV_PCM_RATE_192000;
7665c3ac88SClemens Ladisch hardware->rate_min = 44100;
7765c3ac88SClemens Ladisch }
7865c3ac88SClemens Ladisch }
7965c3ac88SClemens Ladisch
xonar_set_hdmi_params(struct oxygen * chip,struct xonar_hdmi * hdmi,struct snd_pcm_hw_params * params)8065c3ac88SClemens Ladisch void xonar_set_hdmi_params(struct oxygen *chip, struct xonar_hdmi *hdmi,
8165c3ac88SClemens Ladisch struct snd_pcm_hw_params *params)
8265c3ac88SClemens Ladisch {
8365c3ac88SClemens Ladisch hdmi->params[0] = 0; /* 1 = non-audio */
8465c3ac88SClemens Ladisch switch (params_rate(params)) {
8565c3ac88SClemens Ladisch case 44100:
8665c3ac88SClemens Ladisch hdmi->params[1] = IEC958_AES3_CON_FS_44100;
8765c3ac88SClemens Ladisch break;
8865c3ac88SClemens Ladisch case 48000:
8965c3ac88SClemens Ladisch hdmi->params[1] = IEC958_AES3_CON_FS_48000;
9065c3ac88SClemens Ladisch break;
9165c3ac88SClemens Ladisch default: /* 96000 */
9265c3ac88SClemens Ladisch hdmi->params[1] = IEC958_AES3_CON_FS_96000;
9365c3ac88SClemens Ladisch break;
9465c3ac88SClemens Ladisch case 192000:
9565c3ac88SClemens Ladisch hdmi->params[1] = IEC958_AES3_CON_FS_192000;
9665c3ac88SClemens Ladisch break;
9765c3ac88SClemens Ladisch }
9865c3ac88SClemens Ladisch hdmi->params[2] = params_channels(params) / 2 - 1;
9965c3ac88SClemens Ladisch if (params_format(params) == SNDRV_PCM_FORMAT_S16_LE)
10065c3ac88SClemens Ladisch hdmi->params[3] = 0;
10165c3ac88SClemens Ladisch else
10265c3ac88SClemens Ladisch hdmi->params[3] = 0xc0;
10365c3ac88SClemens Ladisch hdmi->params[4] = 1; /* ? */
10465c3ac88SClemens Ladisch hdmi_write_command(chip, 0x54, 5, hdmi->params);
10565c3ac88SClemens Ladisch }
10665c3ac88SClemens Ladisch
xonar_hdmi_uart_input(struct oxygen * chip)10765c3ac88SClemens Ladisch void xonar_hdmi_uart_input(struct oxygen *chip)
10865c3ac88SClemens Ladisch {
10965c3ac88SClemens Ladisch if (chip->uart_input_count >= 2 &&
11065c3ac88SClemens Ladisch chip->uart_input[chip->uart_input_count - 2] == 'O' &&
11165c3ac88SClemens Ladisch chip->uart_input[chip->uart_input_count - 1] == 'K') {
11203d3ac21STakashi Iwai dev_dbg(chip->card->dev, "message from HDMI chip received:\n");
11365c3ac88SClemens Ladisch print_hex_dump_bytes("", DUMP_PREFIX_OFFSET,
11465c3ac88SClemens Ladisch chip->uart_input, chip->uart_input_count);
11565c3ac88SClemens Ladisch chip->uart_input_count = 0;
11665c3ac88SClemens Ladisch }
11765c3ac88SClemens Ladisch }
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