2017-12-01 13:47:09 +00:00
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// SPDX-License-Identifier: GPL-2.0
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// For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
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// I2C address is always 0xC0.
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//
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// Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@infradead.org)
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//
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// tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa
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// from their contributions on DScaler.
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2005-06-29 03:45:21 +00:00
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2016-09-05 10:21:27 +00:00
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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2005-06-29 03:45:21 +00:00
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#include <linux/i2c.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
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#include <linux/slab.h>
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2005-07-12 20:58:55 +00:00
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#include <linux/delay.h>
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2009-02-19 20:31:17 +00:00
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#include <linux/videodev2.h>
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2007-08-28 00:24:27 +00:00
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#include "tuner-i2c.h"
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#include "tea5767.h"
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2005-06-29 03:45:21 +00:00
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2008-04-22 17:41:48 +00:00
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static int debug;
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2007-08-28 00:24:27 +00:00
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "enable verbose debug messages");
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2005-06-29 03:45:21 +00:00
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2007-10-18 23:10:07 +00:00
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/*****************************************************************************/
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2007-08-28 00:24:27 +00:00
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2007-10-18 23:10:07 +00:00
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struct tea5767_priv {
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struct tuner_i2c_props i2c_props;
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u32 frequency;
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struct tea5767_ctrl ctrl;
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2007-08-21 04:24:42 +00:00
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};
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2005-06-29 03:45:21 +00:00
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/*****************************************************************************/
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/******************************
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* Write mode register values *
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******************************/
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/* First register */
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2005-07-12 20:58:55 +00:00
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#define TEA5767_MUTE 0x80 /* Mutes output */
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#define TEA5767_SEARCH 0x40 /* Activates station search */
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2005-06-29 03:45:21 +00:00
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/* Bits 0-5 for divider MSB */
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/* Second register */
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/* Bits 0-7 for divider LSB */
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/* Third register */
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/* Station search from botton to up */
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#define TEA5767_SEARCH_UP 0x80
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/* Searches with ADC output = 10 */
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#define TEA5767_SRCH_HIGH_LVL 0x60
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/* Searches with ADC output = 10 */
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#define TEA5767_SRCH_MID_LVL 0x40
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/* Searches with ADC output = 5 */
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#define TEA5767_SRCH_LOW_LVL 0x20
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/* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */
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#define TEA5767_HIGH_LO_INJECT 0x10
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/* Disable stereo */
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#define TEA5767_MONO 0x08
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/* Disable right channel and turns to mono */
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#define TEA5767_MUTE_RIGHT 0x04
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/* Disable left channel and turns to mono */
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#define TEA5767_MUTE_LEFT 0x02
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#define TEA5767_PORT1_HIGH 0x01
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2006-01-15 17:04:52 +00:00
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/* Fourth register */
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2005-06-29 03:45:21 +00:00
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#define TEA5767_PORT2_HIGH 0x80
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/* Chips stops working. Only I2C bus remains on */
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#define TEA5767_STDBY 0x40
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/* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */
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#define TEA5767_JAPAN_BAND 0x20
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/* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */
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#define TEA5767_XTAL_32768 0x10
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/* Cuts weak signals */
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#define TEA5767_SOFT_MUTE 0x08
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/* Activates high cut control */
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#define TEA5767_HIGH_CUT_CTRL 0x04
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/* Activates stereo noise control */
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#define TEA5767_ST_NOISE_CTL 0x02
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/* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */
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#define TEA5767_SRCH_IND 0x01
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2006-01-15 17:04:52 +00:00
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/* Fifth register */
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2005-06-29 03:45:21 +00:00
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/* By activating, it will use Xtal at 13 MHz as reference for divider */
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#define TEA5767_PLLREF_ENABLE 0x80
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/* By activating, deemphasis=50, or else, deemphasis of 50us */
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#define TEA5767_DEEMPH_75 0X40
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/*****************************
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* Read mode register values *
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*****************************/
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/* First register */
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#define TEA5767_READY_FLAG_MASK 0x80
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#define TEA5767_BAND_LIMIT_MASK 0X40
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/* Bits 0-5 for divider MSB after search or preset */
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/* Second register */
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/* Bits 0-7 for divider LSB after search or preset */
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/* Third register */
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#define TEA5767_STEREO_MASK 0x80
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#define TEA5767_IF_CNTR_MASK 0x7f
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2006-01-15 17:04:52 +00:00
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/* Fourth register */
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2005-06-29 03:45:21 +00:00
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#define TEA5767_ADC_LEVEL_MASK 0xf0
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/* should be 0 */
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#define TEA5767_CHIP_ID_MASK 0x0f
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2006-01-15 17:04:52 +00:00
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/* Fifth register */
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2005-06-29 03:45:21 +00:00
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/* Reserved for future extensions */
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#define TEA5767_RESERVED_MASK 0xff
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/*****************************************************************************/
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2007-10-18 23:10:07 +00:00
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static void tea5767_status_dump(struct tea5767_priv *priv,
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unsigned char *buffer)
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2005-06-29 03:45:21 +00:00
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{
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unsigned int div, frq;
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if (TEA5767_READY_FLAG_MASK & buffer[0])
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2008-04-22 17:41:53 +00:00
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tuner_info("Ready Flag ON\n");
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2005-06-29 03:45:21 +00:00
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else
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2008-04-22 17:41:53 +00:00
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tuner_info("Ready Flag OFF\n");
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2005-06-29 03:45:21 +00:00
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if (TEA5767_BAND_LIMIT_MASK & buffer[0])
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2008-04-22 17:41:53 +00:00
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tuner_info("Tuner at band limit\n");
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2005-06-29 03:45:21 +00:00
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else
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2008-04-22 17:41:53 +00:00
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tuner_info("Tuner not at band limit\n");
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2005-06-29 03:45:21 +00:00
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2005-07-12 20:58:55 +00:00
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div = ((buffer[0] & 0x3f) << 8) | buffer[1];
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2005-06-29 03:45:21 +00:00
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2007-10-18 23:10:07 +00:00
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switch (priv->ctrl.xtal_freq) {
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2005-06-29 03:45:21 +00:00
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case TEA5767_HIGH_LO_13MHz:
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2005-07-15 10:56:28 +00:00
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frq = (div * 50000 - 700000 - 225000) / 4; /* Freq in KHz */
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2005-06-29 03:45:21 +00:00
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break;
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case TEA5767_LOW_LO_13MHz:
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2005-07-15 10:56:28 +00:00
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frq = (div * 50000 + 700000 + 225000) / 4; /* Freq in KHz */
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2005-06-29 03:45:21 +00:00
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break;
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case TEA5767_LOW_LO_32768:
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2005-07-15 10:56:28 +00:00
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frq = (div * 32768 + 700000 + 225000) / 4; /* Freq in KHz */
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2005-06-29 03:45:21 +00:00
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break;
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case TEA5767_HIGH_LO_32768:
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default:
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2005-07-15 10:56:28 +00:00
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frq = (div * 32768 - 700000 - 225000) / 4; /* Freq in KHz */
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2005-06-29 03:45:21 +00:00
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break;
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}
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2005-07-12 20:58:55 +00:00
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buffer[0] = (div >> 8) & 0x3f;
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buffer[1] = div & 0xff;
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2005-06-29 03:45:21 +00:00
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2008-04-22 17:41:53 +00:00
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tuner_info("Frequency %d.%03d KHz (divider = 0x%04x)\n",
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frq / 1000, frq % 1000, div);
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2005-06-29 03:45:21 +00:00
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if (TEA5767_STEREO_MASK & buffer[2])
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2008-04-22 17:41:53 +00:00
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tuner_info("Stereo\n");
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2005-06-29 03:45:21 +00:00
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else
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2008-04-22 17:41:53 +00:00
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tuner_info("Mono\n");
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2005-06-29 03:45:21 +00:00
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2008-04-22 17:41:53 +00:00
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tuner_info("IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK);
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2005-06-29 03:45:21 +00:00
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2008-04-22 17:41:53 +00:00
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tuner_info("ADC Level = %d\n",
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(buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4);
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2005-06-29 03:45:21 +00:00
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2008-04-22 17:41:53 +00:00
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tuner_info("Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK));
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2005-06-29 03:45:21 +00:00
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2008-04-22 17:41:53 +00:00
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tuner_info("Reserved = 0x%02x\n",
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(buffer[4] & TEA5767_RESERVED_MASK));
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2005-06-29 03:45:21 +00:00
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}
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/* Freq should be specifyed at 62.5 Hz */
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2007-08-28 00:24:27 +00:00
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static int set_radio_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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2005-06-29 03:45:21 +00:00
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{
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2007-08-28 00:24:27 +00:00
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struct tea5767_priv *priv = fe->tuner_priv;
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unsigned int frq = params->frequency;
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2005-07-12 20:58:55 +00:00
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unsigned char buffer[5];
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2005-06-29 03:45:21 +00:00
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unsigned div;
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int rc;
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2007-08-28 00:24:27 +00:00
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tuner_dbg("radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
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2005-06-29 03:45:21 +00:00
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2007-10-18 23:10:07 +00:00
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buffer[2] = 0;
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2005-06-29 03:45:21 +00:00
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2007-10-18 23:10:07 +00:00
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if (priv->ctrl.port1)
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buffer[2] |= TEA5767_PORT1_HIGH;
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2005-07-12 20:58:55 +00:00
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2007-08-28 00:24:27 +00:00
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if (params->audmode == V4L2_TUNER_MODE_MONO) {
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2005-06-29 03:45:21 +00:00
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tuner_dbg("TEA5767 set to mono\n");
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buffer[2] |= TEA5767_MONO;
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2005-07-12 20:58:55 +00:00
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} else {
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tuner_dbg("TEA5767 set to stereo\n");
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}
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2005-06-29 03:45:21 +00:00
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2007-10-18 23:10:07 +00:00
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buffer[3] = 0;
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if (priv->ctrl.port2)
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buffer[3] |= TEA5767_PORT2_HIGH;
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if (priv->ctrl.high_cut)
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buffer[3] |= TEA5767_HIGH_CUT_CTRL;
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if (priv->ctrl.st_noise)
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buffer[3] |= TEA5767_ST_NOISE_CTL;
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if (priv->ctrl.soft_mute)
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buffer[3] |= TEA5767_SOFT_MUTE;
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if (priv->ctrl.japan_band)
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buffer[3] |= TEA5767_JAPAN_BAND;
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buffer[4] = 0;
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if (priv->ctrl.deemph_75)
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buffer[4] |= TEA5767_DEEMPH_75;
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if (priv->ctrl.pllref)
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buffer[4] |= TEA5767_PLLREF_ENABLE;
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/* Rounds freq to next decimal value - for 62.5 KHz step */
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/* frq = 20*(frq/16)+radio_frq[frq%16]; */
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switch (priv->ctrl.xtal_freq) {
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2005-06-29 03:45:21 +00:00
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case TEA5767_HIGH_LO_13MHz:
|
2007-08-28 00:24:27 +00:00
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tuner_dbg("radio HIGH LO inject xtal @ 13 MHz\n");
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2005-06-29 03:45:21 +00:00
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buffer[2] |= TEA5767_HIGH_LO_INJECT;
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2006-01-15 17:04:52 +00:00
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div = (frq * (4000 / 16) + 700000 + 225000 + 25000) / 50000;
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2005-06-29 03:45:21 +00:00
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break;
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case TEA5767_LOW_LO_13MHz:
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2007-08-28 00:24:27 +00:00
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tuner_dbg("radio LOW LO inject xtal @ 13 MHz\n");
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2005-06-29 03:45:21 +00:00
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2006-01-15 17:04:52 +00:00
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div = (frq * (4000 / 16) - 700000 - 225000 + 25000) / 50000;
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2005-06-29 03:45:21 +00:00
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break;
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case TEA5767_LOW_LO_32768:
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2007-08-28 00:24:27 +00:00
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tuner_dbg("radio LOW LO inject xtal @ 32,768 MHz\n");
|
2005-06-29 03:45:21 +00:00
|
|
|
buffer[3] |= TEA5767_XTAL_32768;
|
|
|
|
/* const 700=4000*175 Khz - to adjust freq to right value */
|
2006-01-15 17:04:52 +00:00
|
|
|
div = ((frq * (4000 / 16) - 700000 - 225000) + 16384) >> 15;
|
2005-06-29 03:45:21 +00:00
|
|
|
break;
|
|
|
|
case TEA5767_HIGH_LO_32768:
|
|
|
|
default:
|
2007-08-28 00:24:27 +00:00
|
|
|
tuner_dbg("radio HIGH LO inject xtal @ 32,768 MHz\n");
|
2005-06-29 03:45:21 +00:00
|
|
|
|
|
|
|
buffer[2] |= TEA5767_HIGH_LO_INJECT;
|
|
|
|
buffer[3] |= TEA5767_XTAL_32768;
|
2005-07-15 10:56:28 +00:00
|
|
|
div = ((frq * (4000 / 16) + 700000 + 225000) + 16384) >> 15;
|
2005-06-29 03:45:21 +00:00
|
|
|
break;
|
|
|
|
}
|
2005-07-12 20:58:55 +00:00
|
|
|
buffer[0] = (div >> 8) & 0x3f;
|
|
|
|
buffer[1] = div & 0xff;
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-21 04:24:42 +00:00
|
|
|
if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
|
2005-07-12 20:58:55 +00:00
|
|
|
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
|
2005-07-15 10:56:28 +00:00
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
if (debug) {
|
2007-08-21 04:24:42 +00:00
|
|
|
if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
|
2005-07-15 10:56:28 +00:00
|
|
|
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
|
|
|
|
else
|
2007-10-18 23:10:07 +00:00
|
|
|
tea5767_status_dump(priv, buffer);
|
2005-07-15 10:56:28 +00:00
|
|
|
}
|
2007-08-28 00:24:27 +00:00
|
|
|
|
|
|
|
priv->frequency = frq * 125 / 2;
|
|
|
|
|
|
|
|
return 0;
|
2005-06-29 03:45:21 +00:00
|
|
|
}
|
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
static int tea5767_read_status(struct dvb_frontend *fe, char *buffer)
|
2005-06-29 03:45:21 +00:00
|
|
|
{
|
2007-08-28 00:24:27 +00:00
|
|
|
struct tea5767_priv *priv = fe->tuner_priv;
|
2007-08-31 19:40:14 +00:00
|
|
|
int rc;
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
memset(buffer, 0, 5);
|
|
|
|
if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) {
|
2005-07-12 20:58:55 +00:00
|
|
|
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
|
2007-08-31 19:40:14 +00:00
|
|
|
return -EREMOTEIO;
|
|
|
|
}
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
return 0;
|
2005-06-29 03:45:21 +00:00
|
|
|
}
|
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
static inline int tea5767_signal(struct dvb_frontend *fe, const char *buffer)
|
2005-06-29 03:45:21 +00:00
|
|
|
{
|
2007-08-28 00:24:27 +00:00
|
|
|
struct tea5767_priv *priv = fe->tuner_priv;
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
int signal = ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8);
|
|
|
|
|
|
|
|
tuner_dbg("Signal strength: %d\n", signal);
|
|
|
|
|
|
|
|
return signal;
|
|
|
|
}
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
static inline int tea5767_stereo(struct dvb_frontend *fe, const char *buffer)
|
|
|
|
{
|
|
|
|
struct tea5767_priv *priv = fe->tuner_priv;
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
int stereo = buffer[2] & TEA5767_STEREO_MASK;
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
tuner_dbg("Radio ST GET = %02x\n", stereo);
|
|
|
|
|
|
|
|
return (stereo ? V4L2_TUNER_SUB_STEREO : 0);
|
2005-06-29 03:45:21 +00:00
|
|
|
}
|
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
static int tea5767_get_status(struct dvb_frontend *fe, u32 *status)
|
|
|
|
{
|
2007-08-31 19:40:14 +00:00
|
|
|
unsigned char buffer[5];
|
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
*status = 0;
|
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
if (0 == tea5767_read_status(fe, buffer)) {
|
|
|
|
if (tea5767_signal(fe, buffer))
|
|
|
|
*status = TUNER_STATUS_LOCKED;
|
|
|
|
if (tea5767_stereo(fe, buffer))
|
|
|
|
*status |= TUNER_STATUS_STEREO;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int tea5767_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
|
|
|
|
{
|
|
|
|
unsigned char buffer[5];
|
|
|
|
|
|
|
|
*strength = 0;
|
2007-08-28 00:24:27 +00:00
|
|
|
|
2007-08-31 19:40:14 +00:00
|
|
|
if (0 == tea5767_read_status(fe, buffer))
|
|
|
|
*strength = tea5767_signal(fe, buffer);
|
2007-08-28 00:24:27 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int tea5767_standby(struct dvb_frontend *fe)
|
2005-09-09 20:03:37 +00:00
|
|
|
{
|
|
|
|
unsigned char buffer[5];
|
2007-08-28 00:24:27 +00:00
|
|
|
struct tea5767_priv *priv = fe->tuner_priv;
|
2005-09-09 20:03:37 +00:00
|
|
|
unsigned div, rc;
|
|
|
|
|
|
|
|
div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
|
|
|
|
buffer[0] = (div >> 8) & 0x3f;
|
|
|
|
buffer[1] = div & 0xff;
|
|
|
|
buffer[2] = TEA5767_PORT1_HIGH;
|
|
|
|
buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL |
|
|
|
|
TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY;
|
|
|
|
buffer[4] = 0;
|
|
|
|
|
2007-08-21 04:24:42 +00:00
|
|
|
if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
|
2005-09-09 20:03:37 +00:00
|
|
|
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
|
2007-08-28 00:24:27 +00:00
|
|
|
|
|
|
|
return 0;
|
2005-09-09 20:03:37 +00:00
|
|
|
}
|
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
|
2005-06-29 03:45:21 +00:00
|
|
|
{
|
2007-08-28 00:24:27 +00:00
|
|
|
struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };
|
2005-08-01 05:34:43 +00:00
|
|
|
unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
|
2016-09-05 10:21:27 +00:00
|
|
|
|
2005-06-29 03:45:21 +00:00
|
|
|
int rc;
|
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
if ((rc = tuner_i2c_xfer_recv(&i2c, buffer, 7))< 5) {
|
2016-09-05 10:21:27 +00:00
|
|
|
pr_warn("It is not a TEA5767. Received %i bytes.\n", rc);
|
2008-04-30 18:45:00 +00:00
|
|
|
return -EINVAL;
|
2005-06-29 03:45:21 +00:00
|
|
|
}
|
|
|
|
|
2005-08-01 05:34:43 +00:00
|
|
|
/* If all bytes are the same then it's a TV tuner and not a tea5767 */
|
2005-07-12 20:58:55 +00:00
|
|
|
if (buffer[0] == buffer[1] && buffer[0] == buffer[2] &&
|
|
|
|
buffer[0] == buffer[3] && buffer[0] == buffer[4]) {
|
2016-09-05 10:21:27 +00:00
|
|
|
pr_warn("All bytes are equal. It is not a TEA5767\n");
|
2008-04-30 18:45:00 +00:00
|
|
|
return -EINVAL;
|
2005-06-29 03:45:21 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Status bytes:
|
|
|
|
* Byte 4: bit 3:1 : CI (Chip Identification) == 0
|
2005-07-12 20:58:55 +00:00
|
|
|
* bit 0 : internally set to 0
|
2005-06-29 03:45:21 +00:00
|
|
|
* Byte 5: bit 7:0 : == 0
|
|
|
|
*/
|
2005-09-09 20:03:37 +00:00
|
|
|
if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
|
2016-09-05 10:21:27 +00:00
|
|
|
pr_warn("Chip ID is not zero. It is not a TEA5767\n");
|
2008-04-30 18:45:00 +00:00
|
|
|
return -EINVAL;
|
2005-06-29 03:45:21 +00:00
|
|
|
}
|
2005-07-15 10:56:28 +00:00
|
|
|
|
2005-08-02 04:11:38 +00:00
|
|
|
|
2005-06-29 03:45:21 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2016-11-18 22:30:51 +00:00
|
|
|
static void tea5767_release(struct dvb_frontend *fe)
|
|
|
|
{
|
|
|
|
kfree(fe->tuner_priv);
|
|
|
|
fe->tuner_priv = NULL;
|
|
|
|
}
|
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
|
|
|
{
|
|
|
|
struct tea5767_priv *priv = fe->tuner_priv;
|
|
|
|
*frequency = priv->frequency;
|
2007-10-18 23:10:07 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int tea5767_set_config (struct dvb_frontend *fe, void *priv_cfg)
|
|
|
|
{
|
|
|
|
struct tea5767_priv *priv = fe->tuner_priv;
|
|
|
|
|
|
|
|
memcpy(&priv->ctrl, priv_cfg, sizeof(priv->ctrl));
|
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2016-09-11 14:44:13 +00:00
|
|
|
static const struct dvb_tuner_ops tea5767_tuner_ops = {
|
2007-08-28 00:24:27 +00:00
|
|
|
.info = {
|
|
|
|
.name = "tea5767", // Philips TEA5767HN FM Radio
|
|
|
|
},
|
|
|
|
|
|
|
|
.set_analog_params = set_radio_freq,
|
2007-10-18 23:10:07 +00:00
|
|
|
.set_config = tea5767_set_config,
|
2007-08-28 00:24:27 +00:00
|
|
|
.sleep = tea5767_standby,
|
2016-11-18 22:30:51 +00:00
|
|
|
.release = tea5767_release,
|
2007-08-28 00:24:27 +00:00
|
|
|
.get_frequency = tea5767_get_frequency,
|
|
|
|
.get_status = tea5767_get_status,
|
2007-08-31 19:40:14 +00:00
|
|
|
.get_rf_strength = tea5767_get_rf_strength,
|
2007-06-06 19:17:17 +00:00
|
|
|
};
|
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe,
|
|
|
|
struct i2c_adapter* i2c_adap,
|
|
|
|
u8 i2c_addr)
|
2005-06-29 03:45:21 +00:00
|
|
|
{
|
2007-08-21 04:24:42 +00:00
|
|
|
struct tea5767_priv *priv = NULL;
|
|
|
|
|
|
|
|
priv = kzalloc(sizeof(struct tea5767_priv), GFP_KERNEL);
|
|
|
|
if (priv == NULL)
|
2007-08-28 00:24:27 +00:00
|
|
|
return NULL;
|
|
|
|
fe->tuner_priv = priv;
|
2007-08-21 04:24:42 +00:00
|
|
|
|
2007-10-18 23:10:07 +00:00
|
|
|
priv->i2c_props.addr = i2c_addr;
|
|
|
|
priv->i2c_props.adap = i2c_adap;
|
2008-04-22 17:41:53 +00:00
|
|
|
priv->i2c_props.name = "tea5767";
|
|
|
|
|
2007-10-18 23:10:07 +00:00
|
|
|
priv->ctrl.xtal_freq = TEA5767_HIGH_LO_32768;
|
|
|
|
priv->ctrl.port1 = 1;
|
|
|
|
priv->ctrl.port2 = 1;
|
|
|
|
priv->ctrl.high_cut = 1;
|
|
|
|
priv->ctrl.st_noise = 1;
|
|
|
|
priv->ctrl.japan_band = 1;
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops,
|
|
|
|
sizeof(struct dvb_tuner_ops));
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
tuner_info("type set to %s\n", "Philips TEA5767HN FM Radio");
|
2005-06-29 03:45:21 +00:00
|
|
|
|
2007-08-28 00:24:27 +00:00
|
|
|
return fe;
|
2005-06-29 03:45:21 +00:00
|
|
|
}
|
2007-08-28 00:24:27 +00:00
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(tea5767_attach);
|
|
|
|
EXPORT_SYMBOL_GPL(tea5767_autodetection);
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("Philips TEA5767 FM tuner driver");
|
|
|
|
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
|
2017-12-01 13:47:09 +00:00
|
|
|
MODULE_LICENSE("GPL v2");
|