[linux-dvb] [akpm@osdl.org: [patch 1/1] or51132_load_firmware warning fix]

Gerd Knorr kraxel at bytesex.org
Fri Mar 11 08:57:48 CET 2005


On Thu, Mar 10, 2005 at 10:36:40PM +0100, Johannes Stezenbach wrote:
> Gerd Knorr wrote:
> > 
> > Little fix for the or51132 fe driver ...
> ...
> > drivers/media/dvb/frontends/or51132.c: In function `or51132_load_firmware':
> > drivers/media/dvb/frontends/or51132.c:113: warning: long int format, int arg (arg 2)
> 
> Errmh, we don't have any or51132.c driver in CVS (just the
> or51211.c for the pcHDTV). Rusty Scott said that you maintain it
> together with your cx88 driver.

I've sent it to the list some days ago, at the same time I've mailed the
other patches to andrew morton (with the dvb-ones cc'ed to the list).
I'll attach it again.

  Gerd

-- 
#define printk(args...) fprintf(stderr, ## args)
-------------- next part --------------
Subject: [patch] dvb: add or51132 driver (atsc demodulator)

$subject says all

Signed-off-by: Gerd Knorr <kraxel at bytesex.org>
---
 drivers/media/dvb/frontends/Kconfig   |    4 
 drivers/media/dvb/frontends/Makefile  |    2 
 drivers/media/dvb/frontends/or51132.c |  628 ++++++++++++++++++++++++++
 drivers/media/dvb/frontends/or51132.h |   48 +
 drivers/media/video/Kconfig           |    1 
 drivers/media/video/cx88/cx88-dvb.c   |    2 
 6 files changed, 683 insertions(+), 2 deletions(-)

Index: linux-2.6.11/drivers/media/dvb/frontends/or51132.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.11/drivers/media/dvb/frontends/or51132.h	2005-03-07 16:31:12.000000000 +0100
@@ -0,0 +1,48 @@
+/*
+ *    Support for OR51132 (pcHDTV HD-3000) - VSB/QAM
+ *
+ *    Copyright (C) 2005 Kirk Lapray <kirk_lapray at bigfoot.com>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+*/
+
+#ifndef OR51132_H
+#define OR51132_H
+
+#include <linux/firmware.h>
+#include <linux/dvb/frontend.h>
+
+struct or51132_config
+{
+	/* The demodulator's i2c address */
+	u8 demod_address;
+	u8 pll_address;
+	struct dvb_pll_desc *pll_desc;
+
+	/* Need to set device param for start_dma */
+	int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
+};
+
+extern struct dvb_frontend* or51132_attach(const struct or51132_config* config,
+					   struct i2c_adapter* i2c);
+
+#endif // OR51132_H
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
Index: linux-2.6.11/drivers/media/dvb/frontends/or51132.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.11/drivers/media/dvb/frontends/or51132.c	2005-03-07 16:31:12.000000000 +0100
@@ -0,0 +1,628 @@
+/*
+ *    Support for OR51132 (pcHDTV HD-3000) - VSB/QAM
+ *
+ *    Copyright (C) 2005 Kirk Lapray <kirk_lapray at bigfoot.com>
+ *
+ *    Based on code from Jack Kelliher (kelliher at xmission.com)
+ *                           Copyright (C) 2002 & pcHDTV, inc.
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+*/
+
+/*
+ * This driver needs two external firmware files. Please copy
+ * "dvb-fe-or51132-vsb.fw" and "dvb-fe-or51132-qam.fw" to
+ * /usr/lib/hotplug/firmware/ or /lib/firmware/
+ * (depending on configuration of firmware hotplug).
+ */
+#define OR51132_VSB_FIRMWARE "dvb-fe-or51132-vsb.fw"
+#define OR51132_QAM_FIRMWARE "dvb-fe-or51132-qam.fw"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <asm/byteorder.h>
+
+#include "dvb_frontend.h"
+#include "dvb-pll.h"
+#include "or51132.h"
+
+static int debug;
+#define dprintk(args...) \
+	do { \
+		if (debug) printk(KERN_DEBUG "or51132: " args); \
+	} while (0)
+
+
+struct or51132_state
+{
+	struct i2c_adapter* i2c;
+	struct dvb_frontend_ops ops;
+
+	/* Configuration settings */
+	const struct or51132_config* config;
+
+	struct dvb_frontend frontend;
+	
+	/* Demodulator private data */
+	fe_modulation_t current_modulation;
+
+	/* Tuner private data */
+	u32 current_frequency;
+};
+
+static int i2c_writebytes (struct or51132_state* state, u8 reg, u8 *buf, int len)
+{
+	int err;
+	struct i2c_msg msg;
+	msg.addr  = reg;
+	msg.flags = 0;
+	msg.len   = len;
+	msg.buf   = buf;
+
+	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
+		printk(KERN_WARNING "or51132: i2c_writebytes error (addr %02x, err == %i)\n", reg, err);
+		return -EREMOTEIO;
+	}
+
+	return 0;
+}
+
+static u8 i2c_readbytes (struct or51132_state* state, u8 reg, u8* buf, int len)
+{
+	int err;
+	struct i2c_msg msg;
+	msg.addr   = reg;
+	msg.flags = I2C_M_RD;
+	msg.len = len;
+	msg.buf = buf;
+
+	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
+		printk(KERN_WARNING "or51132: i2c_readbytes error (addr %02x, err == %i)\n", reg, err);
+		return -EREMOTEIO;
+	}
+
+	return 0;
+}
+
+static int or51132_load_firmware (struct dvb_frontend* fe, const struct firmware *fw)
+{
+	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
+	static u8 run_buf[] = {0x7F,0x01};
+	static u8 get_ver_buf[] = {0x04,0x00,0x30,0x00,0x00};
+	u8 rec_buf[14];
+	u8 cmd_buf[14];
+	u32 firmwareAsize, firmwareBsize;
+	int i,ret;
+
+	dprintk("Firmware is %ld bytes\n",fw->size);
+
+	/* Get size of firmware A and B */
+	firmwareAsize = le32_to_cpu(*((u32*)fw->data));
+	dprintk("FirmwareA is %i bytes\n",firmwareAsize);
+	firmwareBsize = le32_to_cpu(*((u32*)(fw->data+4)));
+	dprintk("FirmwareB is %i bytes\n",firmwareBsize);
+
+	/* Upload firmware */
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 &fw->data[8],firmwareAsize))) {
+		printk(KERN_WARNING "or51132: load_firmware error 1\n");
+		return ret;
+	}
+	msleep(1); /* 1ms */
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 &fw->data[8+firmwareAsize],firmwareBsize))) {
+		printk(KERN_WARNING "or51132: load_firmware error 2\n");
+		return ret;
+	}
+	msleep(1); /* 1ms */
+
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 run_buf,2))) {
+		printk(KERN_WARNING "or51132: load_firmware error 3\n");
+		return ret;
+	}
+
+	/* Wait at least 5 msec */ 
+	msleep(20); /* 10ms */
+
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 run_buf,2))) {
+		printk(KERN_WARNING "or51132: load_firmware error 4\n");
+		return ret;
+	}
+
+	/* 50ms for operation to begin */
+	msleep(50);
+
+	/* Read back ucode version to besure we loaded correctly and are really up and running */
+	/* Get uCode version */
+	cmd_buf[0] = 0x10;
+	cmd_buf[1] = 0x10;
+	cmd_buf[2] = 0x00;
+	cmd_buf[3] = 0x00;
+	msleep(20); /* 20ms */
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 cmd_buf,3))) {
+		printk(KERN_WARNING "or51132: load_firmware error a\n");
+		return ret;
+	}
+
+	cmd_buf[0] = 0x04;
+	cmd_buf[1] = 0x17;
+	cmd_buf[2] = 0x00;
+	cmd_buf[3] = 0x00;
+	msleep(20); /* 20ms */
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 cmd_buf,2))) {
+		printk(KERN_WARNING "or51132: load_firmware error b\n");
+		return ret;
+	}
+
+	cmd_buf[0] = 0x00;
+	cmd_buf[1] = 0x00;
+	cmd_buf[2] = 0x00;
+	cmd_buf[3] = 0x00;
+	msleep(20); /* 20ms */
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 cmd_buf,2))) {
+		printk(KERN_WARNING "or51132: load_firmware error c\n");
+		return ret;
+	}
+
+	for(i=0;i<4;i++) {
+		msleep(20); /* 20ms */
+		get_ver_buf[4] = i+1;
+		if ((ret = i2c_readbytes(state,state->config->demod_address,
+					&rec_buf[i*2],2))) {
+			printk(KERN_WARNING 
+			       "or51132: load_firmware error d - %d\n",i);
+			return ret;
+		}
+	}
+
+	printk(KERN_WARNING
+	       "or51132: Version: %02X%02X%02X%02X-%02X%02X%02X%02X (%02X%01X-%01X-%02X%01X-%01X)\n",
+	       rec_buf[1],rec_buf[0],rec_buf[3],rec_buf[2],
+	       rec_buf[5],rec_buf[4],rec_buf[7],rec_buf[6],
+	       rec_buf[3],rec_buf[2]>>4,rec_buf[2]&0x0f,
+	       rec_buf[5],rec_buf[4]>>4,rec_buf[4]&0x0f);
+
+	cmd_buf[0] = 0x10;
+	cmd_buf[1] = 0x00;
+	cmd_buf[2] = 0x00;
+	cmd_buf[3] = 0x00;
+	msleep(20); /* 20ms */
+	if ((ret = i2c_writebytes(state,state->config->demod_address,
+				 cmd_buf,3))) {
+		printk(KERN_WARNING "or51132: load_firmware error e\n");
+		return ret;
+	}
+	return 0;
+};
+
+static int or51132_init(struct dvb_frontend* fe)
+{
+	return 0;
+}
+
+static int or51132_read_ber(struct dvb_frontend* fe, u32* ber)
+{
+	*ber = 0;
+	return 0;
+}
+
+static int or51132_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
+{
+	*ucblocks = 0;
+	return 0;
+}
+
+static int or51132_sleep(struct dvb_frontend* fe)
+{
+	return 0;
+}
+
+static int or51132_setmode(struct dvb_frontend* fe)
+{
+	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
+	unsigned char cmd_buf[4];
+
+	dprintk("setmode %d\n",(int)state->current_modulation);
+	/* set operation mode in Receiver 1 register; */
+	cmd_buf[0] = 0x04;
+	cmd_buf[1] = 0x01;
+	switch (state->current_modulation) {
+	case QAM_256:
+	case QAM_64:
+	case QAM_AUTO:
+		/* Auto-deinterleave; MPEG ser, MPEG2tr, phase noise-high*/
+		cmd_buf[2] = 0x5F;
+		break;
+	case VSB_8:
+		/* Auto CH, Auto NTSC rej, MPEGser, MPEG2tr, phase noise-high*/
+		cmd_buf[2] = 0x50;
+		break;
+	default:
+		printk("setmode:Modulation set to unsupported value\n");
+	};
+	cmd_buf[3] = 0x00;
+	if (i2c_writebytes(state,state->config->demod_address,
+			   cmd_buf,3)) {
+		printk(KERN_WARNING "or51132: set_mode error 1\n");
+		return -1;
+	}
+	dprintk("or51132: set #1 to %02x\n", cmd_buf[2]);
+
+	/* Set operation mode in Receiver 6 register */
+	cmd_buf[0] = 0x1C;
+	switch (state->current_modulation) {
+	case QAM_AUTO:
+		/* REC MODE Normal Carrier Lock */
+		cmd_buf[1] = 0x00;
+		/* Channel MODE Auto QAM64/256 */
+		cmd_buf[2] = 0x4f;
+		break;
+	case QAM_256:
+		/* REC MODE Normal Carrier Lock */
+		cmd_buf[1] = 0x00;
+		/* Channel MODE QAM256 */
+		cmd_buf[2] = 0x45;
+		break;
+	case QAM_64:
+		/* REC MODE Normal Carrier Lock */
+		cmd_buf[1] = 0x00;
+		/* Channel MODE QAM64 */
+		cmd_buf[2] = 0x43;
+		break;
+	case VSB_8:
+		 /* REC MODE inv IF spectrum, Normal */
+		cmd_buf[1] = 0x03;
+		/* Channel MODE ATSC/VSB8 */
+		cmd_buf[2] = 0x06;
+		break;
+	default:
+		printk("setmode: Modulation set to unsupported value\n");
+	};
+	cmd_buf[3] = 0x00;
+	msleep(20); /* 20ms */
+	if (i2c_writebytes(state,state->config->demod_address,
+			   cmd_buf,3)) {
+		printk(KERN_WARNING "or51132: set_mode error 2\n");
+		return -1;
+	}
+	dprintk("or51132: set #6 to 0x%02x%02x\n", cmd_buf[1], cmd_buf[2]);
+
+	return 0;
+}
+
+static int or51132_set_parameters(struct dvb_frontend* fe,
+				  struct dvb_frontend_parameters *param)
+{
+	int ret;
+	u8 buf[4];
+	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
+	const struct firmware *fw;
+
+	/* Change only if we are actually changing the modulation */
+	if (state->current_modulation != param->u.vsb.modulation) {
+		switch(param->u.vsb.modulation) {
+		case VSB_8:
+			dprintk("set_parameters VSB MODE\n");
+			printk("or51132: Waiting for firmware upload(%s)...\n",
+			       OR51132_VSB_FIRMWARE);
+			ret = request_firmware(&fw, OR51132_VSB_FIRMWARE, 
+					       &state->i2c->dev);
+			if (ret){
+				printk(KERN_WARNING "or51132: No firmware up"
+				       "loaded(timeout or file not found?)\n");
+				return ret;
+			}
+			/* Set non-punctured clock for VSB */
+			state->config->set_ts_params(fe, 0);
+			break;
+		case QAM_AUTO:
+		case QAM_64:
+		case QAM_256:
+			dprintk("set_parameters QAM MODE\n");
+			printk("or51132: Waiting for firmware upload(%s)...\n",
+			       OR51132_QAM_FIRMWARE);
+			ret = request_firmware(&fw, OR51132_QAM_FIRMWARE, 
+					       &state->i2c->dev);
+			if (ret){
+				printk(KERN_WARNING "or51132: No firmware up"
+				       "loaded(timeout or file not found?)\n");
+				return ret;
+			}
+			/* Set punctured clock for QAM */
+			state->config->set_ts_params(fe, 1);
+			break;
+		default:
+			printk("or51132:Modulation type(%d) UNSUPPORTED\n",
+			       param->u.vsb.modulation);
+			return -1;
+		};
+		ret = or51132_load_firmware(fe, fw);
+		release_firmware(fw);
+		if (ret) {
+			printk(KERN_WARNING "or51132: Writing firmware to "
+			       "device failed!\n");
+			return ret;
+		}
+		printk("or51132: Firmware upload complete.\n");
+
+		state->current_modulation = param->u.vsb.modulation;
+		or51132_setmode(fe);
+	}
+
+	/* Change only if we are actually changing the channel */
+	if (state->current_frequency != param->frequency) {
+		dvb_pll_configure(state->config->pll_desc, buf,
+				  param->frequency, 0);
+		dprintk("set_parameters tuner bytes: 0x%02x 0x%02x "
+			"0x%02x 0x%02x\n",buf[0],buf[1],buf[2],buf[3]);
+		if (i2c_writebytes(state, state->config->pll_address ,buf, 4))
+			printk(KERN_WARNING "or51132: set_parameters error "
+			       "writing to tuner\n");
+	
+		/* Set to current mode */
+		or51132_setmode(fe);
+	
+		/* Update current frequency */
+		state->current_frequency = param->frequency;
+	}
+	return 0;
+}
+
+static int or51132_read_status(struct dvb_frontend* fe, fe_status_t* status)
+{
+	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
+	unsigned char rec_buf[2];
+	unsigned char snd_buf[2];
+	*status = 0;
+
+	/* Receiver Status */
+	snd_buf[0]=0x04;
+	snd_buf[1]=0x00;
+	msleep(30); /* 30ms */
+	if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) {
+		printk(KERN_WARNING "or51132: read_status write error\n");
+		return -1;
+	}
+	msleep(30); /* 30ms */
+	if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
+		printk(KERN_WARNING "or51132: read_status read error\n");
+		return -1;
+	}
+	dprintk("read_status %x %x\n",rec_buf[0],rec_buf[1]);
+
+	if (rec_buf[1] & 0x01) { /* Receiver Lock */
+		*status |= FE_HAS_SIGNAL;
+		*status |= FE_HAS_CARRIER;
+		*status |= FE_HAS_VITERBI;
+		*status |= FE_HAS_SYNC;
+		*status |= FE_HAS_LOCK;
+	}
+	return 0;
+}
+
+/* log10-1 table at .5 increments from 1 to 100.5 */
+unsigned int i100x20log10[] = {
+     0,  352,  602,  795,  954, 1088, 1204, 1306, 1397, 1480,
+  1556, 1625, 1690, 1750, 1806, 1858, 1908, 1955, 2000, 2042,
+  2082, 2121, 2158, 2193, 2227, 2260, 2292, 2322, 2352, 2380,
+  2408, 2434, 2460, 2486, 2510, 2534, 2557, 2580, 2602, 2623,
+  2644, 2664, 2684, 2704, 2723, 2742, 2760, 2778, 2795, 2813,
+  2829, 2846, 2862, 2878, 2894, 2909, 2924, 2939, 2954, 2968,
+  2982, 2996, 3010, 3023, 3037, 3050, 3062, 3075, 3088, 3100,
+  3112, 3124, 3136, 3148, 3159, 3170, 3182, 3193, 3204, 3214,
+  3225, 3236, 3246, 3256, 3266, 3276, 3286, 3296, 3306, 3316,
+  3325, 3334, 3344, 3353, 3362, 3371, 3380, 3389, 3397, 3406,
+  3415, 3423, 3432, 3440, 3448, 3456, 3464, 3472, 3480, 3488,
+  3496, 3504, 3511, 3519, 3526, 3534, 3541, 3549, 3556, 3563,
+  3570, 3577, 3584, 3591, 3598, 3605, 3612, 3619, 3625, 3632,
+  3639, 3645, 3652, 3658, 3665, 3671, 3677, 3683, 3690, 3696,
+  3702, 3708, 3714, 3720, 3726, 3732, 3738, 3744, 3750, 3755,
+  3761, 3767, 3772, 3778, 3784, 3789, 3795, 3800, 3806, 3811,
+  3816, 3822, 3827, 3832, 3838, 3843, 3848, 3853, 3858, 3863,
+  3868, 3874, 3879, 3884, 3888, 3893, 3898, 3903, 3908, 3913,
+  3918, 3922, 3927, 3932, 3936, 3941, 3946, 3950, 3955, 3960,
+  3964, 3969, 3973, 3978, 3982, 3986, 3991, 3995, 4000, 4004,
+};
+
+unsigned int denom[] = {1,1,100,1000,10000,100000,1000000,10000000,100000000};
+
+unsigned int i20Log10(unsigned short val)
+{
+	unsigned int rntval = 100;
+	unsigned int tmp = val;
+	unsigned int exp = 1;
+
+	while(tmp > 100) {tmp /= 100; exp++;}
+
+	val = (2 * val)/denom[exp];
+	if (exp > 1) rntval = 2000*exp;
+
+	rntval += i100x20log10[val];
+	return rntval;
+}
+
+static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength)
+{
+	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
+	unsigned char rec_buf[2];
+	unsigned char snd_buf[2];
+	u8 rcvr_stat;
+	u16 snr_equ;
+	int usK;
+	
+	snd_buf[0]=0x04;
+	snd_buf[1]=0x02; /* SNR after Equalizer */
+	msleep(30); /* 30ms */
+	if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) {
+		printk(KERN_WARNING "or51132: read_status write error\n");
+		return -1;
+	}
+	msleep(30); /* 30ms */
+	if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
+		printk(KERN_WARNING "or51132: read_status read error\n");
+		return -1;
+	}
+	snr_equ = rec_buf[0] | (rec_buf[1] << 8);
+	dprintk("read_signal_strength snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ);
+
+	/* Receiver Status */
+	snd_buf[0]=0x04;
+	snd_buf[1]=0x00;
+	msleep(30); /* 30ms */
+	if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) {
+		printk(KERN_WARNING "or51132: read_signal_strength read_status write error\n");
+		return -1;
+	}
+	msleep(30); /* 30ms */
+	if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
+		printk(KERN_WARNING "or51132: read_signal_strength read_status read error\n");
+		return -1;
+	}
+	dprintk("read_signal_strength read_status %x %x\n",rec_buf[0],rec_buf[1]);
+	rcvr_stat = rec_buf[1];
+	usK = (rcvr_stat & 0x10) ? 3 : 0;
+
+        /* The value reported back from the frontend will be FFFF=100% 0000=0% */
+	*strength = (((8952 - i20Log10(snr_equ) - usK*100)/3+5)*65535)/1000;
+	dprintk("read_signal_strength %i\n",*strength);
+
+	return 0;
+}
+
+static int or51132_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
+	unsigned char rec_buf[2];
+	unsigned char snd_buf[2];
+	u16 snr_equ;
+
+	snd_buf[0]=0x04;
+	snd_buf[1]=0x02; /* SNR after Equalizer */
+	msleep(30); /* 30ms */
+	if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) {
+		printk(KERN_WARNING "or51132: read_snr write error\n");
+		return -1;
+	}
+	msleep(30); /* 30ms */
+	if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
+		printk(KERN_WARNING "or51132: read_snr dvr read error\n");
+		return -1;
+	}
+	snr_equ = rec_buf[0] | (rec_buf[1] << 8);
+	dprintk("read_snr snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ);
+
+	*snr = 0xFFFF - snr_equ;
+	dprintk("read_snr %i\n",*snr);
+
+	return 0;
+}
+
+static int or51132_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings)
+{
+	fe_tune_settings->min_delay_ms = 500;
+	fe_tune_settings->step_size = 0;
+	fe_tune_settings->max_drift = 0;
+
+	return 0;
+}
+
+static void or51132_release(struct dvb_frontend* fe)
+{
+	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
+	kfree(state);
+}
+
+static struct dvb_frontend_ops or51132_ops;
+
+struct dvb_frontend* or51132_attach(const struct or51132_config* config,
+				    struct i2c_adapter* i2c)
+{
+	struct or51132_state* state = NULL;
+
+	/* Allocate memory for the internal state */
+	state = kmalloc(sizeof(struct or51132_state), GFP_KERNEL);
+	if (state == NULL)
+		goto error;
+
+	/* Setup the state */
+	state->config = config;
+	state->i2c = i2c;
+	memcpy(&state->ops, &or51132_ops, sizeof(struct dvb_frontend_ops));
+	state->current_frequency = -1;
+	state->current_modulation = -1;
+
+	/* Create dvb_frontend */
+	state->frontend.ops = &state->ops;
+	state->frontend.demodulator_priv = state;
+	return &state->frontend;
+
+error:
+	if (state)
+		kfree(state);
+	return NULL;
+}
+
+static struct dvb_frontend_ops or51132_ops = {
+
+	.info = {
+		.name			= "Oren OR51132 VSB/QAM Frontend",
+		.type 			= FE_ATSC,
+		.frequency_min		= 44000000,
+		.frequency_max		= 958000000,
+		.frequency_stepsize	= 166666,
+		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+			FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO |
+			FE_CAN_8VSB
+	},
+
+	.release = or51132_release,
+
+	.init = or51132_init,
+	.sleep = or51132_sleep,
+
+	.set_frontend = or51132_set_parameters,
+	.get_tune_settings = or51132_get_tune_settings,
+
+	.read_status = or51132_read_status,
+	.read_ber = or51132_read_ber,
+	.read_signal_strength = or51132_read_signal_strength,
+	.read_snr = or51132_read_snr,
+	.read_ucblocks = or51132_read_ucblocks,
+};
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
+
+MODULE_DESCRIPTION("OR51132 ATSC [pcHDTV HD-3000] (8VSB & ITU J83 AnnexB FEC QAM64/256) Demodulator Driver");
+MODULE_AUTHOR("Kirk Lapray");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(or51132_attach);
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
Index: linux-2.6.11/drivers/media/dvb/frontends/Makefile
===================================================================
--- linux-2.6.11.orig/drivers/media/dvb/frontends/Makefile	2005-03-07 16:25:54.000000000 +0100
+++ linux-2.6.11/drivers/media/dvb/frontends/Makefile	2005-03-07 16:31:05.000000000 +0100
@@ -26,4 +26,4 @@ obj-$(CONFIG_DVB_TDA80XX) += tda80xx.o
 obj-$(CONFIG_DVB_TDA10021) += tda10021.o
 obj-$(CONFIG_DVB_STV0297) += stv0297.o
 obj-$(CONFIG_DVB_NXT2002) += nxt2002.o
-
+obj-$(CONFIG_DVB_OR51132) += or51132.o
Index: linux-2.6.11/drivers/media/dvb/frontends/Kconfig
===================================================================
--- linux-2.6.11.orig/drivers/media/dvb/frontends/Kconfig	2005-03-07 10:12:55.000000000 +0100
+++ linux-2.6.11/drivers/media/dvb/frontends/Kconfig	2005-03-07 16:31:05.000000000 +0100
@@ -157,4 +157,8 @@ config DVB_NXT2002
 	help
 	  An ATSC 8VSB tuner module. Say Y when you want to support this frontend.
 
+config DVB_OR51132
+	tristate "OR51132 based (pcHDTV)"
+	depends on DVB_CORE
+
 endmenu
Index: linux-2.6.11/drivers/media/video/Kconfig
===================================================================
--- linux-2.6.11.orig/drivers/media/video/Kconfig	2005-03-07 16:31:00.000000000 +0100
+++ linux-2.6.11/drivers/media/video/Kconfig	2005-03-07 16:31:05.000000000 +0100
@@ -328,6 +328,7 @@ config VIDEO_CX88_DVB
 	select VIDEO_BUF_DVB
 	select DVB_MT352
 	select DVB_CX22702
+	select DVB_OR51132
 	---help---
 	  This adds support for DVB/ATSC cards based on the
 	  Connexant 2388x chip.
Index: linux-2.6.11/drivers/media/video/cx88/cx88-dvb.c
===================================================================
--- linux-2.6.11.orig/drivers/media/video/cx88/cx88-dvb.c	2005-03-07 16:31:00.000000000 +0100
+++ linux-2.6.11/drivers/media/video/cx88/cx88-dvb.c	2005-03-07 16:31:05.000000000 +0100
@@ -32,7 +32,7 @@
 
 /* those two frontends need merging via linuxtv cvs ... */
 #define HAVE_CX22702 1
-#define HAVE_OR51132 0
+#define HAVE_OR51132 1
 
 #include "cx88.h"
 #include "dvb-pll.h"


More information about the linux-dvb mailing list