/*
 * helper functions for HDMI models (Xonar HDAV1.3/HDAV1.3 Slim)
 *
 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
 *
 *
 *  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/>.
 */

#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;
	}
}
input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='2fb78e89405f4321b86274a0c24b30896dd50529'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:36:39 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:36:39 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/ipcomp.c?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>2fb78e89405f4321b86274a0c24b30896dd50529</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/ipv4/ipcomp.c?id=2fb78e89405f4321b86274a0c24b30896dd50529'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>4de241e242441b80bd3f0022fc546bb07374571f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/ipv4/ipcomp.c?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>net/ipv4/ipcomp.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/ipcomp.c?h=nds-private-remove&amp;id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>dd3b9f25c867cb2507a45e436d6ede8eb08e7b05</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv4/ipcomp.c?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529&amp;id2=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/ipcomp.c?h=nds-private-remove&amp;id=c14024dbb156c8392908aaa822097d27c6af8ec8'>c14024dbb156c8392908aaa822097d27c6af8ec8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv4/ipcomp.c?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529&amp;id2=c14024dbb156c8392908aaa822097d27c6af8ec8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-linus' of git://git.kernel.dk/linux-block</div><div class='commit-msg'>Pull block fixes from Jens Axboe:
 "A set of fixes for this series. This contains:

   - Set of fixes for the nvme target code

   - A revert of patch from this merge window, causing a regression with
     WRITE_SAME on iSCSI targets at least.

   - A fix for a use-after-free in the new O_DIRECT bdev code.

   - Two fixes for the xen-blkfront driver"

* 'for-linus' of git://git.kernel.dk/linux-block:
  Revert "sd: remove __data_len hack for WRITE SAME"
  nvme-fc: use blk_rq_nr_phys_segments
  nvmet-rdma: Fix missing dma sync to nvme data structures
  nvmet: Call fatal_error from keep-alive timout expiration
  nvmet: cancel fatal error and flush async work before free controller
  nvmet: delete controllers deletion upon subsystem release
  nvmet_fc: correct logic in disconnect queue LS handling
  block: fix use after free in __blkdev_direct_IO
  xen-blkfront: correct maximum segment accounting
  xen-blkfront: feature flags handling adjustments
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>Diffstat</a> (limited to 'net/ipv4/ipcomp.c')</div><table summary='diffstat' class='diffstat'>