Clemens Ladisch | 65c3ac8 | 2009-09-28 11:11:27 +0200 | [diff] [blame] | 1 | /* |
Clemens Ladisch | b532d6b | 2011-01-10 16:23:57 +0100 | [diff] [blame] | 2 | * helper functions for HDMI models (Xonar HDAV1.3/HDAV1.3 Slim) |
Clemens Ladisch | 65c3ac8 | 2009-09-28 11:11:27 +0200 | [diff] [blame] | 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 | |
| 29 | static 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 | |
| 47 | static 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 | |
| 60 | void 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 | |
| 67 | void xonar_hdmi_cleanup(struct oxygen *chip) |
| 68 | { |
| 69 | u8 param = 0; |
| 70 | |
| 71 | hdmi_write_command(chip, 0x74, 1, ¶m); |
| 72 | } |
| 73 | |
| 74 | void xonar_hdmi_resume(struct oxygen *chip, struct xonar_hdmi *hdmi) |
| 75 | { |
| 76 | xonar_hdmi_init_commands(chip, hdmi); |
| 77 | } |
| 78 | |
| 79 | void 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 | |
| 91 | void 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 | |
| 118 | void 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') { |
Takashi Iwai | 03d3ac2 | 2014-02-25 18:00:26 +0100 | [diff] [blame^] | 123 | dev_dbg(chip->card->dev, "message from HDMI chip received:\n"); |
Clemens Ladisch | 65c3ac8 | 2009-09-28 11:11:27 +0200 | [diff] [blame] | 124 | print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, |
| 125 | chip->uart_input, chip->uart_input_count); |
| 126 | chip->uart_input_count = 0; |
| 127 | } |
| 128 | } |