[PATCH] v4l: include saa6588 compiler option and files / fixes comments on tuner.h
- Include saa6588 compiler option and files. - Fix comment on tuner.h - linux/utsname.h replaced by linux/version.h to compile on vanilla 2.6.13 Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mauro Carvalho Chehab
Linus Torvalds
Родитель
67e49a1abe
Коммит
10b89ee387
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@ -25,6 +25,18 @@ config VIDEO_BT848
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To compile this driver as a module, choose M here: the
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module will be called bttv.
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config VIDEO_SAA6588
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tristate "SAA6588 Radio Chip RDS decoder support on BT848 cards"
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depends on VIDEO_DEV && I2C && VIDEO_BT848
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help
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Support for Radio Data System (RDS) decoder. This allows seeing
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radio station identification transmitted using this standard.
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Currentlly, it works only with bt8x8 chips.
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To compile this driver as a module, choose M here: the
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module will be called saa6588.
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config VIDEO_PMS
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tristate "Mediavision Pro Movie Studio Video For Linux"
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depends on VIDEO_DEV && ISA
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@ -5,6 +5,7 @@
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bttv-objs := bttv-driver.o bttv-cards.o bttv-if.o \
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bttv-risc.o bttv-vbi.o bttv-i2c.o bttv-gpio.o
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zoran-objs := zr36120.o zr36120_i2c.o zr36120_mem.o
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rds-objs := saa6588.o
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zr36067-objs := zoran_procfs.o zoran_device.o \
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zoran_driver.o zoran_card.o
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tuner-objs := tuner-core.o tuner-simple.o mt20xx.o tda8290.o tea5767.o
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@ -15,6 +16,7 @@ obj-$(CONFIG_VIDEO_BT848) += bttv.o msp3400.o tvaudio.o \
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obj-$(CONFIG_SOUND_TVMIXER) += tvmixer.o
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obj-$(CONFIG_VIDEO_ZR36120) += zoran.o
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obj-$(CONFIG_VIDEO_SAA6588) += rds.o
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obj-$(CONFIG_VIDEO_SAA5246A) += saa5246a.o
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obj-$(CONFIG_VIDEO_SAA5249) += saa5249.o
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obj-$(CONFIG_VIDEO_CQCAM) += c-qcam.o
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@ -25,7 +25,7 @@
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#ifndef _BTTVP_H_
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#define _BTTVP_H_
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#include <linux/utsname.h>
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#include <linux/version.h>
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#define BTTV_VERSION_CODE KERNEL_VERSION(0,9,16)
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#include <linux/types.h>
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@ -34,7 +34,7 @@
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#include "btcx-risc.h"
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#include "cx88-reg.h"
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#include <linux/utsname.h>
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#include <linux/version.h>
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#define CX88_VERSION_CODE KERNEL_VERSION(0,0,5)
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#ifndef TRUE
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@ -0,0 +1,48 @@
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/*
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Types and defines needed for RDS. This is included by
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saa6588.c and every driver (e.g. bttv-driver.c) that wants
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to use the saa6588 module.
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Instead of having a seperate rds.h, I'd prefer to include
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this stuff in one of the already existing files like tuner.h
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(c) 2005 by Hans J. Koch
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _RDS_H
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#define _RDS_H
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struct rds_command {
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unsigned int block_count;
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int result;
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unsigned char *buffer;
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struct file *instance;
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poll_table *event_list;
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};
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#define RDS_CMD_OPEN _IOW('R',1,int)
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#define RDS_CMD_CLOSE _IOW('R',2,int)
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#define RDS_CMD_READ _IOR('R',3,int)
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#define RDS_CMD_POLL _IOR('R',4,int)
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#endif
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@ -0,0 +1,534 @@
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/*
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Driver for SAA6588 RDS decoder
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(c) 2005 Hans J. Koch
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/i2c.h>
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#include <linux/types.h>
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#include <linux/videodev.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/poll.h>
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#include <linux/wait.h>
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#include <asm/uaccess.h>
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#include <media/id.h>
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#include "rds.h"
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/* Addresses to scan */
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static unsigned short normal_i2c[] = {
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0x20 >> 1,
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0x22 >> 1,
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I2C_CLIENT_END,
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};
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I2C_CLIENT_INSMOD;
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/* insmod options */
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static unsigned int debug = 0;
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static unsigned int xtal = 0;
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static unsigned int rbds = 0;
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static unsigned int plvl = 0;
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static unsigned int bufblocks = 100;
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MODULE_PARM(debug, "i");
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MODULE_PARM_DESC(debug, "enable debug messages");
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MODULE_PARM(xtal, "i");
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MODULE_PARM_DESC(xtal, "select oscillator frequency (0..3), default 0");
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MODULE_PARM(rbds, "i");
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MODULE_PARM_DESC(rbds, "select mode, 0=RDS, 1=RBDS, default 0");
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MODULE_PARM(plvl, "i");
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MODULE_PARM_DESC(plvl, "select pause level (0..3), default 0");
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MODULE_PARM(bufblocks, "i");
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MODULE_PARM_DESC(bufblocks, "number of buffered blocks, default 100");
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MODULE_DESCRIPTION("v4l2 driver module for SAA6588 RDS decoder");
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MODULE_AUTHOR("Hans J. Koch <koch@hjk-az.de>");
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MODULE_LICENSE("GPL");
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/* ---------------------------------------------------------------------- */
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#define UNSET (-1U)
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#define PREFIX "saa6588: "
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#define dprintk if (debug) printk
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struct saa6588 {
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struct i2c_client client;
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struct work_struct work;
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struct timer_list timer;
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spinlock_t lock;
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unsigned char *buffer;
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unsigned int buf_size;
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unsigned int rd_index;
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unsigned int wr_index;
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unsigned int block_count;
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unsigned char last_blocknum;
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wait_queue_head_t read_queue;
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int data_available_for_read;
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};
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static struct i2c_driver driver;
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static struct i2c_client client_template;
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/* ---------------------------------------------------------------------- */
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/*
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* SAA6588 defines
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*/
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/* Initialization and mode control byte (0w) */
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/* bit 0+1 (DAC0/DAC1) */
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#define cModeStandard 0x00
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#define cModeFastPI 0x01
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#define cModeReducedRequest 0x02
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#define cModeInvalid 0x03
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/* bit 2 (RBDS) */
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#define cProcessingModeRDS 0x00
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#define cProcessingModeRBDS 0x04
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/* bit 3+4 (SYM0/SYM1) */
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#define cErrCorrectionNone 0x00
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#define cErrCorrection2Bits 0x08
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#define cErrCorrection5Bits 0x10
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#define cErrCorrectionNoneRBDS 0x18
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/* bit 5 (NWSY) */
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#define cSyncNormal 0x00
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#define cSyncRestart 0x20
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/* bit 6 (TSQD) */
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#define cSigQualityDetectOFF 0x00
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#define cSigQualityDetectON 0x40
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/* bit 7 (SQCM) */
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#define cSigQualityTriggered 0x00
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#define cSigQualityContinous 0x80
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/* Pause level and flywheel control byte (1w) */
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/* bits 0..5 (FEB0..FEB5) */
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#define cFlywheelMaxBlocksMask 0x3F
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#define cFlywheelDefault 0x20
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/* bits 6+7 (PL0/PL1) */
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#define cPauseLevel_11mV 0x00
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#define cPauseLevel_17mV 0x40
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#define cPauseLevel_27mV 0x80
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#define cPauseLevel_43mV 0xC0
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/* Pause time/oscillator frequency/quality detector control byte (1w) */
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/* bits 0..4 (SQS0..SQS4) */
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#define cQualityDetectSensMask 0x1F
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#define cQualityDetectDefault 0x0F
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/* bit 5 (SOSC) */
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#define cSelectOscFreqOFF 0x00
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#define cSelectOscFreqON 0x20
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/* bit 6+7 (PTF0/PTF1) */
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#define cOscFreq_4332kHz 0x00
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#define cOscFreq_8664kHz 0x40
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#define cOscFreq_12996kHz 0x80
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#define cOscFreq_17328kHz 0xC0
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/* ---------------------------------------------------------------------- */
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static int block_to_user_buf(struct saa6588 *s, unsigned char *user_buf)
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{
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int i;
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if (s->rd_index == s->wr_index) {
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if (debug > 2)
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dprintk(PREFIX "Read: buffer empty.\n");
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return 0;
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}
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if (debug > 2) {
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dprintk(PREFIX "Read: ");
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for (i = s->rd_index; i < s->rd_index + 3; i++)
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dprintk("0x%02x ", s->buffer[i]);
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}
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if (copy_to_user(user_buf, &s->buffer[s->rd_index], 3))
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return -EFAULT;
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s->rd_index += 3;
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if (s->rd_index >= s->buf_size)
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s->rd_index = 0;
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s->block_count--;
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if (debug > 2)
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dprintk("%d blocks total.\n", s->block_count);
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return 1;
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}
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static void read_from_buf(struct saa6588 *s, struct rds_command *a)
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{
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unsigned long flags;
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unsigned char *buf_ptr = a->buffer; /* This is a user space buffer! */
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unsigned int i;
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unsigned int rd_blocks;
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a->result = 0;
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if (!a->buffer)
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return;
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while (!s->data_available_for_read) {
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int ret = wait_event_interruptible(s->read_queue,
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s->data_available_for_read);
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if (ret == -ERESTARTSYS) {
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a->result = -EINTR;
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return;
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}
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}
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spin_lock_irqsave(&s->lock, flags);
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rd_blocks = a->block_count;
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if (rd_blocks > s->block_count)
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rd_blocks = s->block_count;
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if (!rd_blocks)
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return;
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for (i = 0; i < rd_blocks; i++) {
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if (block_to_user_buf(s, buf_ptr)) {
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buf_ptr += 3;
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a->result++;
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} else
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break;
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}
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a->result *= 3;
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s->data_available_for_read = (s->block_count > 0);
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spin_unlock_irqrestore(&s->lock, flags);
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}
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static void block_to_buf(struct saa6588 *s, unsigned char *blockbuf)
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{
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unsigned int i;
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if (debug > 3)
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dprintk(PREFIX "New block: ");
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for (i = 0; i < 3; ++i) {
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if (debug > 3)
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dprintk("0x%02x ", blockbuf[i]);
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s->buffer[s->wr_index] = blockbuf[i];
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s->wr_index++;
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}
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if (s->wr_index >= s->buf_size)
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s->wr_index = 0;
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if (s->wr_index == s->rd_index) {
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s->rd_index++;
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if (s->rd_index >= s->buf_size)
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s->rd_index = 0;
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} else
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s->block_count++;
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if (debug > 3)
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dprintk("%d blocks total.\n", s->block_count);
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}
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static void saa6588_i2c_poll(struct saa6588 *s)
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{
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unsigned long flags;
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unsigned char tmpbuf[6];
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unsigned char blocknum;
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unsigned char tmp;
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/* Although we only need 3 bytes, we have to read at least 6.
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SAA6588 returns garbage otherwise */
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if (6 != i2c_master_recv(&s->client, &tmpbuf[0], 6)) {
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if (debug > 1)
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dprintk(PREFIX "read error!\n");
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return;
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}
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blocknum = tmpbuf[0] >> 5;
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if (blocknum == s->last_blocknum) {
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if (debug > 3)
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dprintk("Saw block %d again.\n", blocknum);
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return;
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}
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s->last_blocknum = blocknum;
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/*
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Byte order according to v4l2 specification:
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Byte 0: Least Significant Byte of RDS Block
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Byte 1: Most Significant Byte of RDS Block
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Byte 2 Bit 7: Error bit. Indicates that an uncorrectable error
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occurred during reception of this block.
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Bit 6: Corrected bit. Indicates that an error was
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corrected for this data block.
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Bits 5-3: Received Offset. Indicates the offset received
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by the sync system.
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Bits 2-0: Offset Name. Indicates the offset applied to this data.
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SAA6588 byte order is Status-MSB-LSB, so we have to swap the
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first and the last of the 3 bytes block.
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*/
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tmp = tmpbuf[2];
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tmpbuf[2] = tmpbuf[0];
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tmpbuf[0] = tmp;
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tmp = blocknum;
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tmp |= blocknum << 3; /* Received offset == Offset Name (OK ?) */
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if ((tmpbuf[2] & 0x03) == 0x03)
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tmp |= 0x80; /* uncorrectable error */
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else if ((tmpbuf[2] & 0x03) != 0x00)
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tmp |= 0x40; /* corrected error */
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tmpbuf[2] = tmp; /* Is this enough ? Should we also check other bits ? */
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spin_lock_irqsave(&s->lock, flags);
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block_to_buf(s, tmpbuf);
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spin_unlock_irqrestore(&s->lock, flags);
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s->data_available_for_read = 1;
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wake_up_interruptible(&s->read_queue);
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}
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static void saa6588_timer(unsigned long data)
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{
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struct saa6588 *s = (struct saa6588 *)data;
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schedule_work(&s->work);
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}
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|
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static void saa6588_work(void *data)
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{
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struct saa6588 *s = (struct saa6588 *)data;
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saa6588_i2c_poll(s);
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mod_timer(&s->timer, jiffies + HZ / 50); /* 20 msec */
|
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}
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|
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static int saa6588_configure(struct saa6588 *s)
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{
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unsigned char buf[3];
|
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int rc;
|
||||
|
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buf[0] = cSyncRestart;
|
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if (rbds)
|
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buf[0] |= cProcessingModeRBDS;
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buf[1] = cFlywheelDefault;
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switch (plvl) {
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case 0:
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buf[1] |= cPauseLevel_11mV;
|
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break;
|
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case 1:
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buf[1] |= cPauseLevel_17mV;
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break;
|
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case 2:
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buf[1] |= cPauseLevel_27mV;
|
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break;
|
||||
case 3:
|
||||
buf[1] |= cPauseLevel_43mV;
|
||||
break;
|
||||
default: /* nothing */
|
||||
break;
|
||||
}
|
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|
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buf[2] = cQualityDetectDefault | cSelectOscFreqON;
|
||||
|
||||
switch (xtal) {
|
||||
case 0:
|
||||
buf[2] |= cOscFreq_4332kHz;
|
||||
break;
|
||||
case 1:
|
||||
buf[2] |= cOscFreq_8664kHz;
|
||||
break;
|
||||
case 2:
|
||||
buf[2] |= cOscFreq_12996kHz;
|
||||
break;
|
||||
case 3:
|
||||
buf[2] |= cOscFreq_17328kHz;
|
||||
break;
|
||||
default: /* nothing */
|
||||
break;
|
||||
}
|
||||
|
||||
dprintk(PREFIX "writing: 0w=0x%02x 1w=0x%02x 2w=0x%02x\n",
|
||||
buf[0], buf[1], buf[2]);
|
||||
|
||||
if (3 != (rc = i2c_master_send(&s->client, buf, 3)))
|
||||
printk(PREFIX "i2c i/o error: rc == %d (should be 3)\n", rc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
static int saa6588_attach(struct i2c_adapter *adap, int addr, int kind)
|
||||
{
|
||||
struct saa6588 *s;
|
||||
client_template.adapter = adap;
|
||||
client_template.addr = addr;
|
||||
|
||||
printk(PREFIX "chip found @ 0x%x\n", addr << 1);
|
||||
|
||||
if (NULL == (s = kmalloc(sizeof(*s), GFP_KERNEL)))
|
||||
return -ENOMEM;
|
||||
|
||||
s->buf_size = bufblocks * 3;
|
||||
|
||||
if (NULL == (s->buffer = kmalloc(s->buf_size, GFP_KERNEL))) {
|
||||
kfree(s);
|
||||
return -ENOMEM;
|
||||
}
|
||||
s->client = client_template;
|
||||
s->block_count = 0;
|
||||
s->wr_index = 0;
|
||||
s->rd_index = 0;
|
||||
s->last_blocknum = 0xff;
|
||||
init_waitqueue_head(&s->read_queue);
|
||||
s->data_available_for_read = 0;
|
||||
i2c_set_clientdata(&s->client, s);
|
||||
i2c_attach_client(&s->client);
|
||||
|
||||
saa6588_configure(s);
|
||||
|
||||
/* start polling via eventd */
|
||||
INIT_WORK(&s->work, saa6588_work, s);
|
||||
init_timer(&s->timer);
|
||||
s->timer.function = saa6588_timer;
|
||||
s->timer.data = (unsigned long)s;
|
||||
schedule_work(&s->work);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int saa6588_probe(struct i2c_adapter *adap)
|
||||
{
|
||||
#ifdef I2C_CLASS_TV_ANALOG
|
||||
if (adap->class & I2C_CLASS_TV_ANALOG)
|
||||
return i2c_probe(adap, &addr_data, saa6588_attach);
|
||||
#else
|
||||
switch (adap->id) {
|
||||
case I2C_ALGO_BIT | I2C_HW_B_BT848:
|
||||
case I2C_ALGO_BIT | I2C_HW_B_RIVA:
|
||||
case I2C_ALGO_SAA7134:
|
||||
return i2c_probe(adap, &addr_data, saa6588_attach);
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int saa6588_detach(struct i2c_client *client)
|
||||
{
|
||||
struct saa6588 *s = i2c_get_clientdata(client);
|
||||
|
||||
del_timer_sync(&s->timer);
|
||||
flush_scheduled_work();
|
||||
|
||||
i2c_detach_client(client);
|
||||
kfree(s->buffer);
|
||||
kfree(s);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int saa6588_command(struct i2c_client *client, unsigned int cmd,
|
||||
void *arg)
|
||||
{
|
||||
struct saa6588 *s = i2c_get_clientdata(client);
|
||||
struct rds_command *a = (struct rds_command *)arg;
|
||||
|
||||
switch (cmd) {
|
||||
/* --- open() for /dev/radio --- */
|
||||
case RDS_CMD_OPEN:
|
||||
a->result = 0; /* return error if chip doesn't work ??? */
|
||||
break;
|
||||
/* --- close() for /dev/radio --- */
|
||||
case RDS_CMD_CLOSE:
|
||||
s->data_available_for_read = 1;
|
||||
wake_up_interruptible(&s->read_queue);
|
||||
a->result = 0;
|
||||
break;
|
||||
/* --- read() for /dev/radio --- */
|
||||
case RDS_CMD_READ:
|
||||
read_from_buf(s, a);
|
||||
break;
|
||||
/* --- poll() for /dev/radio --- */
|
||||
case RDS_CMD_POLL:
|
||||
a->result = 0;
|
||||
if (s->data_available_for_read) {
|
||||
a->result |= POLLIN | POLLRDNORM;
|
||||
}
|
||||
poll_wait(a->instance, &s->read_queue, a->event_list);
|
||||
break;
|
||||
|
||||
default:
|
||||
/* nothing */
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
static struct i2c_driver driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = "i2c saa6588 driver",
|
||||
.id = -1, /* FIXME */
|
||||
.flags = I2C_DF_NOTIFY,
|
||||
.attach_adapter = saa6588_probe,
|
||||
.detach_client = saa6588_detach,
|
||||
.command = saa6588_command,
|
||||
};
|
||||
|
||||
static struct i2c_client client_template = {
|
||||
.name = "saa6588",
|
||||
.flags = I2C_CLIENT_ALLOW_USE,
|
||||
.driver = &driver,
|
||||
};
|
||||
|
||||
static int __init saa6588_init_module(void)
|
||||
{
|
||||
return i2c_add_driver(&driver);
|
||||
}
|
||||
|
||||
static void __exit saa6588_cleanup_module(void)
|
||||
{
|
||||
i2c_del_driver(&driver);
|
||||
}
|
||||
|
||||
module_init(saa6588_init_module);
|
||||
module_exit(saa6588_cleanup_module);
|
||||
|
||||
/*
|
||||
* Overrides for Emacs so that we follow Linus's tabbing style.
|
||||
* ---------------------------------------------------------------------------
|
||||
* Local variables:
|
||||
* c-basic-offset: 8
|
||||
* End:
|
||||
*/
|
||||
|
|
@ -19,7 +19,7 @@
|
|||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include <linux/utsname.h>
|
||||
#include <linux/version.h>
|
||||
#define SAA7134_VERSION_CODE KERNEL_VERSION(0,2,14)
|
||||
|
||||
#include <linux/pci.h>
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
*
|
||||
/*
|
||||
tuner.h - definition for different tuners
|
||||
|
||||
Copyright (C) 1997 Markus Schroeder (schroedm@uni-duesseldorf.de)
|
||||
|
|
|
|||
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