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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * helper functions for HDMI models (Xonar HDAV1.3/HDAV1.3 Slim)
4 *
5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
6 */
7
8#include <linux/pci.h>
9#include <linux/delay.h>
10#include <sound/asoundef.h>
11#include <sound/control.h>
12#include <sound/core.h>
13#include <sound/pcm.h>
14#include <sound/pcm_params.h>
15#include <sound/tlv.h>
16#include "xonar.h"
17
18static void hdmi_write_command(struct oxygen *chip, u8 command,
19 unsigned int count, const u8 *params)
20{
21 unsigned int i;
22 u8 checksum;
23
24 oxygen_write_uart(chip, 0xfb);
25 oxygen_write_uart(chip, 0xef);
26 oxygen_write_uart(chip, command);
27 oxygen_write_uart(chip, count);
28 for (i = 0; i < count; ++i)
29 oxygen_write_uart(chip, params[i]);
30 checksum = 0xfb + 0xef + command + count;
31 for (i = 0; i < count; ++i)
32 checksum += params[i];
33 oxygen_write_uart(chip, checksum);
34}
35
36static void xonar_hdmi_init_commands(struct oxygen *chip,
37 struct xonar_hdmi *hdmi)
38{
39 u8 param;
40
41 oxygen_reset_uart(chip);
42 param = 0;
43 hdmi_write_command(chip, 0x61, 1, ¶m);
44 param = 1;
45 hdmi_write_command(chip, 0x74, 1, ¶m);
46 hdmi_write_command(chip, 0x54, 5, hdmi->params);
47}
48
49void xonar_hdmi_init(struct oxygen *chip, struct xonar_hdmi *hdmi)
50{
51 hdmi->params[1] = IEC958_AES3_CON_FS_48000;
52 hdmi->params[4] = 1;
53 xonar_hdmi_init_commands(chip, hdmi);
54}
55
56void xonar_hdmi_cleanup(struct oxygen *chip)
57{
58 u8 param = 0;
59
60 hdmi_write_command(chip, 0x74, 1, ¶m);
61}
62
63void xonar_hdmi_resume(struct oxygen *chip, struct xonar_hdmi *hdmi)
64{
65 xonar_hdmi_init_commands(chip, hdmi);
66}
67
68void xonar_hdmi_pcm_hardware_filter(unsigned int channel,
69 struct snd_pcm_hardware *hardware)
70{
71 if (channel == PCM_MULTICH) {
72 hardware->rates = SNDRV_PCM_RATE_44100 |
73 SNDRV_PCM_RATE_48000 |
74 SNDRV_PCM_RATE_96000 |
75 SNDRV_PCM_RATE_192000;
76 hardware->rate_min = 44100;
77 }
78}
79
80void xonar_set_hdmi_params(struct oxygen *chip, struct xonar_hdmi *hdmi,
81 struct snd_pcm_hw_params *params)
82{
83 hdmi->params[0] = 0; /* 1 = non-audio */
84 switch (params_rate(params)) {
85 case 44100:
86 hdmi->params[1] = IEC958_AES3_CON_FS_44100;
87 break;
88 case 48000:
89 hdmi->params[1] = IEC958_AES3_CON_FS_48000;
90 break;
91 default: /* 96000 */
92 hdmi->params[1] = IEC958_AES3_CON_FS_96000;
93 break;
94 case 192000:
95 hdmi->params[1] = IEC958_AES3_CON_FS_192000;
96 break;
97 }
98 hdmi->params[2] = params_channels(params) / 2 - 1;
99 if (params_format(params) == SNDRV_PCM_FORMAT_S16_LE)
100 hdmi->params[3] = 0;
101 else
102 hdmi->params[3] = 0xc0;
103 hdmi->params[4] = 1; /* ? */
104 hdmi_write_command(chip, 0x54, 5, hdmi->params);
105}
106
107void xonar_hdmi_uart_input(struct oxygen *chip)
108{
109 if (chip->uart_input_count >= 2 &&
110 chip->uart_input[chip->uart_input_count - 2] == 'O' &&
111 chip->uart_input[chip->uart_input_count - 1] == 'K') {
112 dev_dbg(chip->card->dev, "message from HDMI chip received:\n");
113 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET,
114 chip->uart_input, chip->uart_input_count);
115 chip->uart_input_count = 0;
116 }
117}
1/*
2 * helper functions for HDMI models (Xonar HDAV1.3/HDAV1.3 Slim)
3 *
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
5 *
6 *
7 * This driver is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License, version 2.
9 *
10 * This driver is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this driver; if not, see <http://www.gnu.org/licenses/>.
17 */
18
19#include <linux/pci.h>
20#include <linux/delay.h>
21#include <sound/asoundef.h>
22#include <sound/control.h>
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26#include <sound/tlv.h>
27#include "xonar.h"
28
29static void hdmi_write_command(struct oxygen *chip, u8 command,
30 unsigned int count, const u8 *params)
31{
32 unsigned int i;
33 u8 checksum;
34
35 oxygen_write_uart(chip, 0xfb);
36 oxygen_write_uart(chip, 0xef);
37 oxygen_write_uart(chip, command);
38 oxygen_write_uart(chip, count);
39 for (i = 0; i < count; ++i)
40 oxygen_write_uart(chip, params[i]);
41 checksum = 0xfb + 0xef + command + count;
42 for (i = 0; i < count; ++i)
43 checksum += params[i];
44 oxygen_write_uart(chip, checksum);
45}
46
47static void xonar_hdmi_init_commands(struct oxygen *chip,
48 struct xonar_hdmi *hdmi)
49{
50 u8 param;
51
52 oxygen_reset_uart(chip);
53 param = 0;
54 hdmi_write_command(chip, 0x61, 1, ¶m);
55 param = 1;
56 hdmi_write_command(chip, 0x74, 1, ¶m);
57 hdmi_write_command(chip, 0x54, 5, hdmi->params);
58}
59
60void xonar_hdmi_init(struct oxygen *chip, struct xonar_hdmi *hdmi)
61{
62 hdmi->params[1] = IEC958_AES3_CON_FS_48000;
63 hdmi->params[4] = 1;
64 xonar_hdmi_init_commands(chip, hdmi);
65}
66
67void xonar_hdmi_cleanup(struct oxygen *chip)
68{
69 u8 param = 0;
70
71 hdmi_write_command(chip, 0x74, 1, ¶m);
72}
73
74void xonar_hdmi_resume(struct oxygen *chip, struct xonar_hdmi *hdmi)
75{
76 xonar_hdmi_init_commands(chip, hdmi);
77}
78
79void xonar_hdmi_pcm_hardware_filter(unsigned int channel,
80 struct snd_pcm_hardware *hardware)
81{
82 if (channel == PCM_MULTICH) {
83 hardware->rates = SNDRV_PCM_RATE_44100 |
84 SNDRV_PCM_RATE_48000 |
85 SNDRV_PCM_RATE_96000 |
86 SNDRV_PCM_RATE_192000;
87 hardware->rate_min = 44100;
88 }
89}
90
91void xonar_set_hdmi_params(struct oxygen *chip, struct xonar_hdmi *hdmi,
92 struct snd_pcm_hw_params *params)
93{
94 hdmi->params[0] = 0; /* 1 = non-audio */
95 switch (params_rate(params)) {
96 case 44100:
97 hdmi->params[1] = IEC958_AES3_CON_FS_44100;
98 break;
99 case 48000:
100 hdmi->params[1] = IEC958_AES3_CON_FS_48000;
101 break;
102 default: /* 96000 */
103 hdmi->params[1] = IEC958_AES3_CON_FS_96000;
104 break;
105 case 192000:
106 hdmi->params[1] = IEC958_AES3_CON_FS_192000;
107 break;
108 }
109 hdmi->params[2] = params_channels(params) / 2 - 1;
110 if (params_format(params) == SNDRV_PCM_FORMAT_S16_LE)
111 hdmi->params[3] = 0;
112 else
113 hdmi->params[3] = 0xc0;
114 hdmi->params[4] = 1; /* ? */
115 hdmi_write_command(chip, 0x54, 5, hdmi->params);
116}
117
118void xonar_hdmi_uart_input(struct oxygen *chip)
119{
120 if (chip->uart_input_count >= 2 &&
121 chip->uart_input[chip->uart_input_count - 2] == 'O' &&
122 chip->uart_input[chip->uart_input_count - 1] == 'K') {
123 dev_dbg(chip->card->dev, "message from HDMI chip received:\n");
124 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET,
125 chip->uart_input, chip->uart_input_count);
126 chip->uart_input_count = 0;
127 }
128}