V4L/DVB (12461): Add ce5039(zl10039) tuner support. (2ccf5a99) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/media/dvb/frontends/Kconfig

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		@@ -81,6 +81,13 @@ config DVB_ZL10036
		help
		A DVB-S tuner module. Say Y when you want to support this frontend.

		config DVB_ZL10039
		tristate "Zarlink ZL10039 silicon tuner"
		depends on DVB_CORE && I2C
		default m if DVB_FE_CUSTOMISE
		help
		A DVB-S tuner module. Say Y when you want to support this frontend.

		config DVB_S5H1420
		tristate "Samsung S5H1420 based"
		depends on DVB_CORE && I2C

drivers/media/dvb/frontends/Makefile

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		@@ -31,6 +31,7 @@ obj-$(CONFIG_DVB_SP887X) += sp887x.o
		obj-$(CONFIG_DVB_NXT6000) += nxt6000.o
		obj-$(CONFIG_DVB_MT352) += mt352.o
		obj-$(CONFIG_DVB_ZL10036) += zl10036.o
		obj-$(CONFIG_DVB_ZL10039) += zl10039.o
		obj-$(CONFIG_DVB_ZL10353) += zl10353.o
		obj-$(CONFIG_DVB_CX22702) += cx22702.o
		obj-$(CONFIG_DVB_DRX397XD) += drx397xD.o

drivers/media/dvb/frontends/zl10039.c

0 → 100644

+308 −0

Original line number	Diff line number	Diff line
		/*
		* Driver for Zarlink ZL10039 DVB-S tuner
		*
		* Copyright 2007 Jan D. Louw <jd.louw@mweb.co.za>
		*
		* 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.
		*/

		#include <linux/module.h>
		#include <linux/init.h>
		#include <linux/string.h>
		#include <linux/slab.h>
		#include <linux/dvb/frontend.h>

		#include "dvb_frontend.h"
		#include "zl10039.h"

		static int debug;

		#define dprintk(args...) \
		do { \
		if (debug) \
		printk(KERN_DEBUG args); \
		} while (0)

		enum zl10039_model_id {
		ID_ZL10039 = 1
		};

		struct zl10039_state {
		struct i2c_adapter *i2c;
		u8 i2c_addr;
		u8 id;
		};

		enum zl10039_reg_addr {
		PLL0 = 0,
		PLL1,
		PLL2,
		PLL3,
		RFFE,
		BASE0,
		BASE1,
		BASE2,
		LO0,
		LO1,
		LO2,
		LO3,
		LO4,
		LO5,
		LO6,
		GENERAL
		};

		static int zl10039_read(const struct zl10039_state *state,
		const enum zl10039_reg_addr reg, u8 *buf,
		const size_t count)
		{
		u8 regbuf[] = { reg };
		struct i2c_msg msg[] = {
		{/* Write register address */
		.addr = state->i2c_addr,
		.flags = 0,
		.buf = regbuf,
		.len = 1,
		}, {/* Read count bytes */
		.addr = state->i2c_addr,
		.flags = I2C_M_RD,
		.buf = buf,
		.len = count,
		},
		};

		dprintk("%s\n", __func__);

		if (i2c_transfer(state->i2c, msg, 2) != 2) {
		dprintk("%s: i2c read error\n", __func__);
		return -EREMOTEIO;
		}

		return 0; /* Success */
		}

		static int zl10039_write(struct zl10039_state *state,
		const enum zl10039_reg_addr reg, const u8 *src,
		const size_t count)
		{
		u8 buf[count + 1];
		struct i2c_msg msg = {
		.addr = state->i2c_addr,
		.flags = 0,
		.buf = buf,
		.len = count + 1,
		};

		dprintk("%s\n", __func__);
		/* Write register address and data in one go */
		buf[0] = reg;
		memcpy(&buf[1], src, count);
		if (i2c_transfer(state->i2c, &msg, 1) != 1) {
		dprintk("%s: i2c write error\n", __func__);
		return -EREMOTEIO;
		}

		return 0; /* Success */
		}

		static inline int zl10039_readreg(struct zl10039_state *state,
		const enum zl10039_reg_addr reg, u8 *val)
		{
		return zl10039_read(state, reg, val, 1);
		}

		static inline int zl10039_writereg(struct zl10039_state *state,
		const enum zl10039_reg_addr reg,
		const u8 val)
		{
		return zl10039_write(state, reg, &val, 1);
		}

		static int zl10039_init(struct dvb_frontend *fe)
		{
		struct zl10039_state *state = fe->tuner_priv;
		int ret;

		dprintk("%s\n", __func__);
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 1);
		/* Reset logic */
		ret = zl10039_writereg(state, GENERAL, 0x40);
		if (ret < 0) {
		dprintk("Note: i2c write error normal when resetting the "
		"tuner\n");
		}
		/* Wake up */
		ret = zl10039_writereg(state, GENERAL, 0x01);
		if (ret < 0) {
		dprintk("Tuner power up failed\n");
		return ret;
		}
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 0);

		return 0;
		}

		static int zl10039_sleep(struct dvb_frontend *fe)
		{
		struct zl10039_state *state = fe->tuner_priv;
		int ret;

		dprintk("%s\n", __func__);
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 1);
		ret = zl10039_writereg(state, GENERAL, 0x80);
		if (ret < 0) {
		dprintk("Tuner sleep failed\n");
		return ret;
		}
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 0);

		return 0;
		}

		static int zl10039_set_params(struct dvb_frontend *fe,
		struct dvb_frontend_parameters *params)
		{
		struct zl10039_state *state = fe->tuner_priv;
		u8 buf[6];
		u8 bf;
		u32 fbw;
		u32 div;
		int ret;

		dprintk("%s\n", __func__);
		dprintk("Set frequency = %d, symbol rate = %d\n",
		params->frequency, params->u.qpsk.symbol_rate);

		/* Assumed 10.111 MHz crystal oscillator */
		/* Cancelled num/den 80 to prevent overflow */
		div = (params->frequency * 1000) / 126387;
		fbw = (params->u.qpsk.symbol_rate * 27) / 32000;
		/* Cancelled num/den 10 to prevent overflow */
		bf = ((fbw * 5088) / 1011100) - 1;

		/PLL divider/
		buf[0] = (div >> 8) & 0x7f;
		buf[1] = (div >> 0) & 0xff;
		/Reference divider/
		/* Select reference ratio of 80 */
		buf[2] = 0x1D;
		/PLL test modes/
		buf[3] = 0x40;
		/RF Control register/
		buf[4] = 0x6E; /* Bypass enable */
		/Baseband filter cutoff /
		buf[5] = bf;

		/* Open i2c gate */
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 1);
		/* BR = 10, Enable filter adjustment */
		ret = zl10039_writereg(state, BASE1, 0x0A);
		if (ret < 0)
		goto error;
		/* Write new config values */
		ret = zl10039_write(state, PLL0, buf, sizeof(buf));
		if (ret < 0)
		goto error;
		/* BR = 10, Disable filter adjustment */
		ret = zl10039_writereg(state, BASE1, 0x6A);
		if (ret < 0)
		goto error;

		/* Close i2c gate */
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 0);
		return 0;
		error:
		dprintk("Error setting tuner\n");
		return ret;
		}

		static int zl10039_release(struct dvb_frontend *fe)
		{
		struct zl10039_state *state = fe->tuner_priv;

		dprintk("%s\n", __func__);
		kfree(state);
		fe->tuner_priv = NULL;
		return 0;
		}

		static struct dvb_tuner_ops zl10039_ops = {
		.release = zl10039_release,
		.init = zl10039_init,
		.sleep = zl10039_sleep,
		.set_params = zl10039_set_params,
		};

		struct dvb_frontend zl10039_attach(struct dvb_frontend fe,
		u8 i2c_addr, struct i2c_adapter *i2c)
		{
		struct zl10039_state *state = NULL;

		dprintk("%s\n", __func__);
		state = kmalloc(sizeof(struct zl10039_state), GFP_KERNEL);
		if (state == NULL)
		goto error;

		state->i2c = i2c;
		state->i2c_addr = i2c_addr;

		/* Open i2c gate */
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 1);
		/* check if this is a valid tuner */
		if (zl10039_readreg(state, GENERAL, &state->id) < 0) {
		/* Close i2c gate */
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 0);
		goto error;
		}
		/* Close i2c gate */
		if (fe->ops.i2c_gate_ctrl)
		fe->ops.i2c_gate_ctrl(fe, 0);

		state->id = state->id & 0x0f;
		switch (state->id) {
		case ID_ZL10039:
		strcpy(fe->ops.tuner_ops.info.name,
		"Zarlink ZL10039 DVB-S tuner");
		break;
		default:
		dprintk("Chip ID=%x does not match a known type\n", state->id);
		break;
		goto error;
		}

		memcpy(&fe->ops.tuner_ops, &zl10039_ops, sizeof(struct dvb_tuner_ops));
		fe->tuner_priv = state;
		dprintk("Tuner attached @ i2c address 0x%02x\n", i2c_addr);
		return fe;
		error:
		kfree(state);
		return NULL;
		}
		EXPORT_SYMBOL(zl10039_attach);

		module_param(debug, int, 0644);
		MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
		MODULE_DESCRIPTION("Zarlink ZL10039 DVB-S tuner driver");
		MODULE_AUTHOR("Jan D. Louw <jd.louw@mweb.co.za>");
		MODULE_LICENSE("GPL");

drivers/media/dvb/frontends/zl10039.h

0 → 100644

+40 −0

Original line number	Diff line number	Diff line
		/*
		Driver for Zarlink ZL10039 DVB-S tuner

		Copyright (C) 2007 Jan D. Louw <jd.louw@mweb.co.za>

		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 ZL10039_H
		#define ZL10039_H

		#if defined(CONFIG_DVB_ZL10039) \|\| (defined(CONFIG_DVB_ZL10039_MODULE) \
		&& defined(MODULE))
		struct dvb_frontend zl10039_attach(struct dvb_frontend fe,
		u8 i2c_addr,
		struct i2c_adapter *i2c);
		#else
		static inline struct dvb_frontend zl10039_attach(struct dvb_frontend fe,
		u8 i2c_addr,
		struct i2c_adapter *i2c)
		{
		printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
		return NULL;
		}
		#endif /* CONFIG_DVB_ZL10039 */

		#endif /* ZL10039_H */