linux/sound/pci/oxygen/xonar_hdmi.c
Thomas Gleixner b67eb1520b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 264
Based on 1 normalized pattern(s):

  this driver is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 this
  driver is distributed in the hope that it will be useful but without
  any warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this driver if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 9 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141333.769845457@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:30:28 +02:00

118 lines
2.9 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* helper functions for HDMI models (Xonar HDAV1.3/HDAV1.3 Slim)
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
*/
#include <linux/pci.h>
#include <linux/delay.h>
#include <sound/asoundef.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include "xonar.h"
static void hdmi_write_command(struct oxygen *chip, u8 command,
unsigned int count, const u8 *params)
{
unsigned int i;
u8 checksum;
oxygen_write_uart(chip, 0xfb);
oxygen_write_uart(chip, 0xef);
oxygen_write_uart(chip, command);
oxygen_write_uart(chip, count);
for (i = 0; i < count; ++i)
oxygen_write_uart(chip, params[i]);
checksum = 0xfb + 0xef + command + count;
for (i = 0; i < count; ++i)
checksum += params[i];
oxygen_write_uart(chip, checksum);
}
static void xonar_hdmi_init_commands(struct oxygen *chip,
struct xonar_hdmi *hdmi)
{
u8 param;
oxygen_reset_uart(chip);
param = 0;
hdmi_write_command(chip, 0x61, 1, &param);
param = 1;
hdmi_write_command(chip, 0x74, 1, &param);
hdmi_write_command(chip, 0x54, 5, hdmi->params);
}
void xonar_hdmi_init(struct oxygen *chip, struct xonar_hdmi *hdmi)
{
hdmi->params[1] = IEC958_AES3_CON_FS_48000;
hdmi->params[4] = 1;
xonar_hdmi_init_commands(chip, hdmi);
}
void xonar_hdmi_cleanup(struct oxygen *chip)
{
u8 param = 0;
hdmi_write_command(chip, 0x74, 1, &param);
}
void xonar_hdmi_resume(struct oxygen *chip, struct xonar_hdmi *hdmi)
{
xonar_hdmi_init_commands(chip, hdmi);
}
void xonar_hdmi_pcm_hardware_filter(unsigned int channel,
struct snd_pcm_hardware *hardware)
{
if (channel == PCM_MULTICH) {
hardware->rates = SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_96000 |
SNDRV_PCM_RATE_192000;
hardware->rate_min = 44100;
}
}
void xonar_set_hdmi_params(struct oxygen *chip, struct xonar_hdmi *hdmi,
struct snd_pcm_hw_params *params)
{
hdmi->params[0] = 0; /* 1 = non-audio */
switch (params_rate(params)) {
case 44100:
hdmi->params[1] = IEC958_AES3_CON_FS_44100;
break;
case 48000:
hdmi->params[1] = IEC958_AES3_CON_FS_48000;
break;
default: /* 96000 */
hdmi->params[1] = IEC958_AES3_CON_FS_96000;
break;
case 192000:
hdmi->params[1] = IEC958_AES3_CON_FS_192000;
break;
}
hdmi->params[2] = params_channels(params) / 2 - 1;
if (params_format(params) == SNDRV_PCM_FORMAT_S16_LE)
hdmi->params[3] = 0;
else
hdmi->params[3] = 0xc0;
hdmi->params[4] = 1; /* ? */
hdmi_write_command(chip, 0x54, 5, hdmi->params);
}
void xonar_hdmi_uart_input(struct oxygen *chip)
{
if (chip->uart_input_count >= 2 &&
chip->uart_input[chip->uart_input_count - 2] == 'O' &&
chip->uart_input[chip->uart_input_count - 1] == 'K') {
dev_dbg(chip->card->dev, "message from HDMI chip received:\n");
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET,
chip->uart_input, chip->uart_input_count);
chip->uart_input_count = 0;
}
}