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bcb63314e2
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.
The patch has been created with the following command without manual edits:
git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
568 lines
14 KiB
C
568 lines
14 KiB
C
/* cx25840 audio functions
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/videodev2.h>
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#include <linux/i2c.h>
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#include <media/v4l2-common.h>
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#include <media/drv-intf/cx25840.h>
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#include "cx25840-core.h"
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/*
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* Note: The PLL and SRC parameters are based on a reference frequency that
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* would ideally be:
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*
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* NTSC Color subcarrier freq * 8 = 4.5 MHz/286 * 455/2 * 8 = 28.63636363... MHz
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*
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* However, it's not the exact reference frequency that matters, only that the
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* firmware and modules that comprise the driver for a particular board all
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* use the same value (close to the ideal value).
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*
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* Comments below will note which reference frequency is assumed for various
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* parameters. They will usually be one of
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*
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* ref_freq = 28.636360 MHz
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* or
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* ref_freq = 28.636363 MHz
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*/
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static int cx25840_set_audclk_freq(struct i2c_client *client, u32 freq)
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{
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struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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if (state->aud_input != CX25840_AUDIO_SERIAL) {
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switch (freq) {
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case 32000:
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/*
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* VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04
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* AUX_PLL Integer = 0x06, AUX PLL Post Divider = 0x10
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*/
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cx25840_write4(client, 0x108, 0x1006040f);
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/*
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* VID_PLL Fraction (register 0x10c) = 0x2be2fe
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* 28636360 * 0xf.15f17f0/4 = 108 MHz
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* 432 MHz pre-postdivide
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*/
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/*
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* AUX_PLL Fraction = 0x1bb39ee
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* 28636363 * 0x6.dd9cf70/0x10 = 32000 * 384
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* 196.6 MHz pre-postdivide
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* FIXME < 200 MHz is out of specified valid range
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* FIXME 28636363 ref_freq doesn't match VID PLL ref
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*/
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cx25840_write4(client, 0x110, 0x01bb39ee);
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/*
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* SA_MCLK_SEL = 1
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* SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider
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*/
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cx25840_write(client, 0x127, 0x50);
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if (is_cx2583x(state))
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break;
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/* src3/4/6_ctl */
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/* 0x1.f77f = (4 * 28636360/8 * 2/455) / 32000 */
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cx25840_write4(client, 0x900, 0x0801f77f);
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cx25840_write4(client, 0x904, 0x0801f77f);
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cx25840_write4(client, 0x90c, 0x0801f77f);
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break;
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case 44100:
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/*
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* VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04
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* AUX_PLL Integer = 0x09, AUX PLL Post Divider = 0x10
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*/
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cx25840_write4(client, 0x108, 0x1009040f);
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/*
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* VID_PLL Fraction (register 0x10c) = 0x2be2fe
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* 28636360 * 0xf.15f17f0/4 = 108 MHz
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* 432 MHz pre-postdivide
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*/
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/*
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* AUX_PLL Fraction = 0x0ec6bd6
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* 28636363 * 0x9.7635eb0/0x10 = 44100 * 384
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* 271 MHz pre-postdivide
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* FIXME 28636363 ref_freq doesn't match VID PLL ref
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*/
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cx25840_write4(client, 0x110, 0x00ec6bd6);
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/*
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* SA_MCLK_SEL = 1
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* SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider
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*/
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cx25840_write(client, 0x127, 0x50);
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if (is_cx2583x(state))
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break;
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/* src3/4/6_ctl */
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/* 0x1.6d59 = (4 * 28636360/8 * 2/455) / 44100 */
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cx25840_write4(client, 0x900, 0x08016d59);
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cx25840_write4(client, 0x904, 0x08016d59);
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cx25840_write4(client, 0x90c, 0x08016d59);
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break;
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case 48000:
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/*
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* VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04
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* AUX_PLL Integer = 0x0a, AUX PLL Post Divider = 0x10
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*/
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cx25840_write4(client, 0x108, 0x100a040f);
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/*
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* VID_PLL Fraction (register 0x10c) = 0x2be2fe
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* 28636360 * 0xf.15f17f0/4 = 108 MHz
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* 432 MHz pre-postdivide
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*/
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/*
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* AUX_PLL Fraction = 0x098d6e5
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* 28636363 * 0xa.4c6b728/0x10 = 48000 * 384
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* 295 MHz pre-postdivide
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* FIXME 28636363 ref_freq doesn't match VID PLL ref
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*/
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cx25840_write4(client, 0x110, 0x0098d6e5);
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/*
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* SA_MCLK_SEL = 1
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* SA_MCLK_DIV = 0x10 = 384/384 * AUX_PLL post dvivider
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*/
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cx25840_write(client, 0x127, 0x50);
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if (is_cx2583x(state))
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break;
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/* src3/4/6_ctl */
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/* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */
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cx25840_write4(client, 0x900, 0x08014faa);
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cx25840_write4(client, 0x904, 0x08014faa);
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cx25840_write4(client, 0x90c, 0x08014faa);
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break;
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}
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} else {
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switch (freq) {
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case 32000:
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/*
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* VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04
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* AUX_PLL Integer = 0x08, AUX PLL Post Divider = 0x1e
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*/
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cx25840_write4(client, 0x108, 0x1e08040f);
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/*
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* VID_PLL Fraction (register 0x10c) = 0x2be2fe
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* 28636360 * 0xf.15f17f0/4 = 108 MHz
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* 432 MHz pre-postdivide
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*/
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/*
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* AUX_PLL Fraction = 0x12a0869
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* 28636363 * 0x8.9504348/0x1e = 32000 * 256
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* 246 MHz pre-postdivide
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* FIXME 28636363 ref_freq doesn't match VID PLL ref
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*/
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cx25840_write4(client, 0x110, 0x012a0869);
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/*
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* SA_MCLK_SEL = 1
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* SA_MCLK_DIV = 0x14 = 256/384 * AUX_PLL post dvivider
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*/
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cx25840_write(client, 0x127, 0x54);
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if (is_cx2583x(state))
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break;
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/* src1_ctl */
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/* 0x1.0000 = 32000/32000 */
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cx25840_write4(client, 0x8f8, 0x08010000);
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/* src3/4/6_ctl */
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/* 0x2.0000 = 2 * (32000/32000) */
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cx25840_write4(client, 0x900, 0x08020000);
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cx25840_write4(client, 0x904, 0x08020000);
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cx25840_write4(client, 0x90c, 0x08020000);
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break;
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case 44100:
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/*
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* VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04
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* AUX_PLL Integer = 0x09, AUX PLL Post Divider = 0x18
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*/
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cx25840_write4(client, 0x108, 0x1809040f);
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/*
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* VID_PLL Fraction (register 0x10c) = 0x2be2fe
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* 28636360 * 0xf.15f17f0/4 = 108 MHz
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* 432 MHz pre-postdivide
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*/
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/*
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* AUX_PLL Fraction = 0x0ec6bd6
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* 28636363 * 0x9.7635eb0/0x18 = 44100 * 256
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* 271 MHz pre-postdivide
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* FIXME 28636363 ref_freq doesn't match VID PLL ref
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*/
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cx25840_write4(client, 0x110, 0x00ec6bd6);
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/*
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* SA_MCLK_SEL = 1
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* SA_MCLK_DIV = 0x10 = 256/384 * AUX_PLL post dvivider
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*/
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cx25840_write(client, 0x127, 0x50);
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if (is_cx2583x(state))
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break;
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/* src1_ctl */
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/* 0x1.60cd = 44100/32000 */
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cx25840_write4(client, 0x8f8, 0x080160cd);
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/* src3/4/6_ctl */
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/* 0x1.7385 = 2 * (32000/44100) */
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cx25840_write4(client, 0x900, 0x08017385);
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cx25840_write4(client, 0x904, 0x08017385);
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cx25840_write4(client, 0x90c, 0x08017385);
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break;
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case 48000:
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/*
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* VID_PLL Integer = 0x0f, VID_PLL Post Divider = 0x04
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* AUX_PLL Integer = 0x0a, AUX PLL Post Divider = 0x18
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*/
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cx25840_write4(client, 0x108, 0x180a040f);
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/*
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* VID_PLL Fraction (register 0x10c) = 0x2be2fe
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* 28636360 * 0xf.15f17f0/4 = 108 MHz
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* 432 MHz pre-postdivide
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*/
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/*
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* AUX_PLL Fraction = 0x098d6e5
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* 28636363 * 0xa.4c6b728/0x18 = 48000 * 256
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* 295 MHz pre-postdivide
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* FIXME 28636363 ref_freq doesn't match VID PLL ref
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*/
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cx25840_write4(client, 0x110, 0x0098d6e5);
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/*
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* SA_MCLK_SEL = 1
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* SA_MCLK_DIV = 0x10 = 256/384 * AUX_PLL post dvivider
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*/
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cx25840_write(client, 0x127, 0x50);
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if (is_cx2583x(state))
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break;
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/* src1_ctl */
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/* 0x1.8000 = 48000/32000 */
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cx25840_write4(client, 0x8f8, 0x08018000);
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/* src3/4/6_ctl */
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/* 0x1.5555 = 2 * (32000/48000) */
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cx25840_write4(client, 0x900, 0x08015555);
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cx25840_write4(client, 0x904, 0x08015555);
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cx25840_write4(client, 0x90c, 0x08015555);
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break;
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}
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}
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state->audclk_freq = freq;
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return 0;
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}
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static inline int cx25836_set_audclk_freq(struct i2c_client *client, u32 freq)
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{
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return cx25840_set_audclk_freq(client, freq);
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}
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static int cx23885_set_audclk_freq(struct i2c_client *client, u32 freq)
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{
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struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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if (state->aud_input != CX25840_AUDIO_SERIAL) {
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switch (freq) {
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case 32000:
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case 44100:
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case 48000:
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/* We don't have register values
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* so avoid destroying registers. */
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/* FIXME return -EINVAL; */
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break;
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}
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} else {
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switch (freq) {
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case 32000:
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case 44100:
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/* We don't have register values
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* so avoid destroying registers. */
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/* FIXME return -EINVAL; */
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break;
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case 48000:
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/* src1_ctl */
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/* 0x1.867c = 48000 / (2 * 28636360/8 * 2/455) */
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cx25840_write4(client, 0x8f8, 0x0801867c);
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/* src3/4/6_ctl */
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/* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */
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cx25840_write4(client, 0x900, 0x08014faa);
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cx25840_write4(client, 0x904, 0x08014faa);
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cx25840_write4(client, 0x90c, 0x08014faa);
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break;
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}
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}
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state->audclk_freq = freq;
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return 0;
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}
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static int cx231xx_set_audclk_freq(struct i2c_client *client, u32 freq)
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{
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struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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if (state->aud_input != CX25840_AUDIO_SERIAL) {
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switch (freq) {
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case 32000:
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/* src3/4/6_ctl */
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/* 0x1.f77f = (4 * 28636360/8 * 2/455) / 32000 */
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cx25840_write4(client, 0x900, 0x0801f77f);
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cx25840_write4(client, 0x904, 0x0801f77f);
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cx25840_write4(client, 0x90c, 0x0801f77f);
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break;
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case 44100:
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/* src3/4/6_ctl */
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/* 0x1.6d59 = (4 * 28636360/8 * 2/455) / 44100 */
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cx25840_write4(client, 0x900, 0x08016d59);
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cx25840_write4(client, 0x904, 0x08016d59);
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cx25840_write4(client, 0x90c, 0x08016d59);
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break;
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case 48000:
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/* src3/4/6_ctl */
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/* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */
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cx25840_write4(client, 0x900, 0x08014faa);
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cx25840_write4(client, 0x904, 0x08014faa);
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cx25840_write4(client, 0x90c, 0x08014faa);
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break;
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}
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} else {
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switch (freq) {
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/* FIXME These cases make different assumptions about audclk */
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case 32000:
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/* src1_ctl */
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/* 0x1.0000 = 32000/32000 */
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cx25840_write4(client, 0x8f8, 0x08010000);
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/* src3/4/6_ctl */
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/* 0x2.0000 = 2 * (32000/32000) */
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cx25840_write4(client, 0x900, 0x08020000);
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cx25840_write4(client, 0x904, 0x08020000);
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cx25840_write4(client, 0x90c, 0x08020000);
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break;
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case 44100:
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/* src1_ctl */
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/* 0x1.60cd = 44100/32000 */
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cx25840_write4(client, 0x8f8, 0x080160cd);
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/* src3/4/6_ctl */
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/* 0x1.7385 = 2 * (32000/44100) */
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cx25840_write4(client, 0x900, 0x08017385);
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cx25840_write4(client, 0x904, 0x08017385);
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cx25840_write4(client, 0x90c, 0x08017385);
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break;
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case 48000:
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/* src1_ctl */
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/* 0x1.867c = 48000 / (2 * 28636360/8 * 2/455) */
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cx25840_write4(client, 0x8f8, 0x0801867c);
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/* src3/4/6_ctl */
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/* 0x1.4faa = (4 * 28636360/8 * 2/455) / 48000 */
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cx25840_write4(client, 0x900, 0x08014faa);
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cx25840_write4(client, 0x904, 0x08014faa);
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cx25840_write4(client, 0x90c, 0x08014faa);
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break;
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}
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}
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state->audclk_freq = freq;
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return 0;
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}
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static int set_audclk_freq(struct i2c_client *client, u32 freq)
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{
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struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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if (freq != 32000 && freq != 44100 && freq != 48000)
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return -EINVAL;
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if (is_cx231xx(state))
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return cx231xx_set_audclk_freq(client, freq);
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if (is_cx2388x(state))
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return cx23885_set_audclk_freq(client, freq);
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if (is_cx2583x(state))
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return cx25836_set_audclk_freq(client, freq);
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return cx25840_set_audclk_freq(client, freq);
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}
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void cx25840_audio_set_path(struct i2c_client *client)
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{
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struct cx25840_state *state = to_state(i2c_get_clientdata(client));
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if (!is_cx2583x(state)) {
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/* assert soft reset */
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cx25840_and_or(client, 0x810, ~0x1, 0x01);
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/* stop microcontroller */
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cx25840_and_or(client, 0x803, ~0x10, 0);
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/* Mute everything to prevent the PFFT! */
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cx25840_write(client, 0x8d3, 0x1f);
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if (state->aud_input == CX25840_AUDIO_SERIAL) {
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/* Set Path1 to Serial Audio Input */
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cx25840_write4(client, 0x8d0, 0x01011012);
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/* The microcontroller should not be started for the
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* non-tuner inputs: autodetection is specific for
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* TV audio. */
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} else {
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/* Set Path1 to Analog Demod Main Channel */
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cx25840_write4(client, 0x8d0, 0x1f063870);
|
|
}
|
|
}
|
|
|
|
set_audclk_freq(client, state->audclk_freq);
|
|
|
|
if (!is_cx2583x(state)) {
|
|
if (state->aud_input != CX25840_AUDIO_SERIAL) {
|
|
/* When the microcontroller detects the
|
|
* audio format, it will unmute the lines */
|
|
cx25840_and_or(client, 0x803, ~0x10, 0x10);
|
|
}
|
|
|
|
/* deassert soft reset */
|
|
cx25840_and_or(client, 0x810, ~0x1, 0x00);
|
|
|
|
/* Ensure the controller is running when we exit */
|
|
if (is_cx2388x(state) || is_cx231xx(state))
|
|
cx25840_and_or(client, 0x803, ~0x10, 0x10);
|
|
}
|
|
}
|
|
|
|
static void set_volume(struct i2c_client *client, int volume)
|
|
{
|
|
int vol;
|
|
|
|
/* Convert the volume to msp3400 values (0-127) */
|
|
vol = volume >> 9;
|
|
|
|
/* now scale it up to cx25840 values
|
|
* -114dB to -96dB maps to 0
|
|
* this should be 19, but in my testing that was 4dB too loud */
|
|
if (vol <= 23) {
|
|
vol = 0;
|
|
} else {
|
|
vol -= 23;
|
|
}
|
|
|
|
/* PATH1_VOLUME */
|
|
cx25840_write(client, 0x8d4, 228 - (vol * 2));
|
|
}
|
|
|
|
static void set_balance(struct i2c_client *client, int balance)
|
|
{
|
|
int bal = balance >> 8;
|
|
if (bal > 0x80) {
|
|
/* PATH1_BAL_LEFT */
|
|
cx25840_and_or(client, 0x8d5, 0x7f, 0x80);
|
|
/* PATH1_BAL_LEVEL */
|
|
cx25840_and_or(client, 0x8d5, ~0x7f, bal & 0x7f);
|
|
} else {
|
|
/* PATH1_BAL_LEFT */
|
|
cx25840_and_or(client, 0x8d5, 0x7f, 0x00);
|
|
/* PATH1_BAL_LEVEL */
|
|
cx25840_and_or(client, 0x8d5, ~0x7f, 0x80 - bal);
|
|
}
|
|
}
|
|
|
|
int cx25840_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct cx25840_state *state = to_state(sd);
|
|
int retval;
|
|
|
|
if (!is_cx2583x(state))
|
|
cx25840_and_or(client, 0x810, ~0x1, 1);
|
|
if (state->aud_input != CX25840_AUDIO_SERIAL) {
|
|
cx25840_and_or(client, 0x803, ~0x10, 0);
|
|
cx25840_write(client, 0x8d3, 0x1f);
|
|
}
|
|
retval = set_audclk_freq(client, freq);
|
|
if (state->aud_input != CX25840_AUDIO_SERIAL)
|
|
cx25840_and_or(client, 0x803, ~0x10, 0x10);
|
|
if (!is_cx2583x(state))
|
|
cx25840_and_or(client, 0x810, ~0x1, 0);
|
|
return retval;
|
|
}
|
|
|
|
static int cx25840_audio_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct v4l2_subdev *sd = to_sd(ctrl);
|
|
struct cx25840_state *state = to_state(sd);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
if (state->mute->val)
|
|
set_volume(client, 0);
|
|
else
|
|
set_volume(client, state->volume->val);
|
|
break;
|
|
case V4L2_CID_AUDIO_BASS:
|
|
/* PATH1_EQ_BASS_VOL */
|
|
cx25840_and_or(client, 0x8d9, ~0x3f,
|
|
48 - (ctrl->val * 48 / 0xffff));
|
|
break;
|
|
case V4L2_CID_AUDIO_TREBLE:
|
|
/* PATH1_EQ_TREBLE_VOL */
|
|
cx25840_and_or(client, 0x8db, ~0x3f,
|
|
48 - (ctrl->val * 48 / 0xffff));
|
|
break;
|
|
case V4L2_CID_AUDIO_BALANCE:
|
|
set_balance(client, ctrl->val);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const struct v4l2_ctrl_ops cx25840_audio_ctrl_ops = {
|
|
.s_ctrl = cx25840_audio_s_ctrl,
|
|
};
|