forked from Minki/linux
V4L/DVB (12461): Add ce5039(zl10039) tuner support.
The code from Jan D. Louw with some minor changes. http://article.gmane.org/gmane.linux.drivers.dvb/38163 Tested with TeVii S630 DVB-S USB card by me (Igor) Signed-off-by: Igor M. Liplianin <liplianin@me.by> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Igor M. Liplianin
Mauro Carvalho Chehab
parent
3040b04342
commit
2ccf5a9906
@ -81,6 +81,13 @@ config DVB_ZL10036
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help
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A DVB-S tuner module. Say Y when you want to support this frontend.
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config DVB_ZL10039
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tristate "Zarlink ZL10039 silicon tuner"
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depends on DVB_CORE && I2C
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default m if DVB_FE_CUSTOMISE
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help
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A DVB-S tuner module. Say Y when you want to support this frontend.
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config DVB_S5H1420
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tristate "Samsung S5H1420 based"
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depends on DVB_CORE && I2C
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@ -31,6 +31,7 @@ obj-$(CONFIG_DVB_SP887X) += sp887x.o
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obj-$(CONFIG_DVB_NXT6000) += nxt6000.o
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obj-$(CONFIG_DVB_MT352) += mt352.o
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obj-$(CONFIG_DVB_ZL10036) += zl10036.o
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obj-$(CONFIG_DVB_ZL10039) += zl10039.o
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obj-$(CONFIG_DVB_ZL10353) += zl10353.o
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obj-$(CONFIG_DVB_CX22702) += cx22702.o
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obj-$(CONFIG_DVB_DRX397XD) += drx397xD.o
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308
drivers/media/dvb/frontends/zl10039.c
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308
drivers/media/dvb/frontends/zl10039.c
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@ -0,0 +1,308 @@
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/*
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* Driver for Zarlink ZL10039 DVB-S tuner
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*
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* Copyright 2007 Jan D. Louw <jd.louw@mweb.co.za>
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*
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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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*
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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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*
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* GNU General Public License for more details.
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*
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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/init.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/dvb/frontend.h>
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#include "dvb_frontend.h"
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#include "zl10039.h"
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static int debug;
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#define dprintk(args...) \
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do { \
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if (debug) \
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printk(KERN_DEBUG args); \
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} while (0)
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enum zl10039_model_id {
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ID_ZL10039 = 1
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};
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struct zl10039_state {
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struct i2c_adapter *i2c;
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u8 i2c_addr;
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u8 id;
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};
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enum zl10039_reg_addr {
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PLL0 = 0,
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PLL1,
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PLL2,
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PLL3,
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RFFE,
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BASE0,
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BASE1,
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BASE2,
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LO0,
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LO1,
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LO2,
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LO3,
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LO4,
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LO5,
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LO6,
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GENERAL
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};
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static int zl10039_read(const struct zl10039_state *state,
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const enum zl10039_reg_addr reg, u8 *buf,
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const size_t count)
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{
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u8 regbuf[] = { reg };
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struct i2c_msg msg[] = {
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{/* Write register address */
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.addr = state->i2c_addr,
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.flags = 0,
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.buf = regbuf,
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.len = 1,
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}, {/* Read count bytes */
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.addr = state->i2c_addr,
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.flags = I2C_M_RD,
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.buf = buf,
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.len = count,
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},
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};
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dprintk("%s\n", __func__);
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if (i2c_transfer(state->i2c, msg, 2) != 2) {
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dprintk("%s: i2c read error\n", __func__);
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return -EREMOTEIO;
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}
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return 0; /* Success */
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}
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static int zl10039_write(struct zl10039_state *state,
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const enum zl10039_reg_addr reg, const u8 *src,
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const size_t count)
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{
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u8 buf[count + 1];
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struct i2c_msg msg = {
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.addr = state->i2c_addr,
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.flags = 0,
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.buf = buf,
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.len = count + 1,
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};
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dprintk("%s\n", __func__);
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/* Write register address and data in one go */
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buf[0] = reg;
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memcpy(&buf[1], src, count);
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if (i2c_transfer(state->i2c, &msg, 1) != 1) {
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dprintk("%s: i2c write error\n", __func__);
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return -EREMOTEIO;
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}
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return 0; /* Success */
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}
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static inline int zl10039_readreg(struct zl10039_state *state,
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const enum zl10039_reg_addr reg, u8 *val)
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{
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return zl10039_read(state, reg, val, 1);
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}
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static inline int zl10039_writereg(struct zl10039_state *state,
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const enum zl10039_reg_addr reg,
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const u8 val)
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{
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return zl10039_write(state, reg, &val, 1);
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}
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static int zl10039_init(struct dvb_frontend *fe)
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{
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struct zl10039_state *state = fe->tuner_priv;
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int ret;
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dprintk("%s\n", __func__);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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/* Reset logic */
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ret = zl10039_writereg(state, GENERAL, 0x40);
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if (ret < 0) {
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dprintk("Note: i2c write error normal when resetting the "
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"tuner\n");
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}
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/* Wake up */
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ret = zl10039_writereg(state, GENERAL, 0x01);
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if (ret < 0) {
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dprintk("Tuner power up failed\n");
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return ret;
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}
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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return 0;
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}
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static int zl10039_sleep(struct dvb_frontend *fe)
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{
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struct zl10039_state *state = fe->tuner_priv;
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int ret;
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dprintk("%s\n", __func__);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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ret = zl10039_writereg(state, GENERAL, 0x80);
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if (ret < 0) {
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dprintk("Tuner sleep failed\n");
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return ret;
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}
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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return 0;
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}
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static int zl10039_set_params(struct dvb_frontend *fe,
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struct dvb_frontend_parameters *params)
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{
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struct zl10039_state *state = fe->tuner_priv;
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u8 buf[6];
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u8 bf;
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u32 fbw;
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u32 div;
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int ret;
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dprintk("%s\n", __func__);
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dprintk("Set frequency = %d, symbol rate = %d\n",
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params->frequency, params->u.qpsk.symbol_rate);
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/* Assumed 10.111 MHz crystal oscillator */
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/* Cancelled num/den 80 to prevent overflow */
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div = (params->frequency * 1000) / 126387;
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fbw = (params->u.qpsk.symbol_rate * 27) / 32000;
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/* Cancelled num/den 10 to prevent overflow */
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bf = ((fbw * 5088) / 1011100) - 1;
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/*PLL divider*/
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buf[0] = (div >> 8) & 0x7f;
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buf[1] = (div >> 0) & 0xff;
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/*Reference divider*/
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/* Select reference ratio of 80 */
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buf[2] = 0x1D;
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/*PLL test modes*/
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buf[3] = 0x40;
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/*RF Control register*/
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buf[4] = 0x6E; /* Bypass enable */
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/*Baseband filter cutoff */
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buf[5] = bf;
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/* Open i2c gate */
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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/* BR = 10, Enable filter adjustment */
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ret = zl10039_writereg(state, BASE1, 0x0A);
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if (ret < 0)
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goto error;
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/* Write new config values */
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ret = zl10039_write(state, PLL0, buf, sizeof(buf));
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if (ret < 0)
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goto error;
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/* BR = 10, Disable filter adjustment */
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ret = zl10039_writereg(state, BASE1, 0x6A);
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if (ret < 0)
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goto error;
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/* Close i2c gate */
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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return 0;
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error:
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dprintk("Error setting tuner\n");
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return ret;
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}
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static int zl10039_release(struct dvb_frontend *fe)
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{
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struct zl10039_state *state = fe->tuner_priv;
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dprintk("%s\n", __func__);
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kfree(state);
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fe->tuner_priv = NULL;
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return 0;
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}
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static struct dvb_tuner_ops zl10039_ops = {
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.release = zl10039_release,
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.init = zl10039_init,
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.sleep = zl10039_sleep,
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.set_params = zl10039_set_params,
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};
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struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
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u8 i2c_addr, struct i2c_adapter *i2c)
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{
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struct zl10039_state *state = NULL;
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dprintk("%s\n", __func__);
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state = kmalloc(sizeof(struct zl10039_state), GFP_KERNEL);
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if (state == NULL)
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goto error;
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state->i2c = i2c;
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state->i2c_addr = i2c_addr;
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/* Open i2c gate */
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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/* check if this is a valid tuner */
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if (zl10039_readreg(state, GENERAL, &state->id) < 0) {
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/* Close i2c gate */
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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goto error;
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}
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/* Close i2c gate */
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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state->id = state->id & 0x0f;
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switch (state->id) {
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case ID_ZL10039:
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strcpy(fe->ops.tuner_ops.info.name,
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"Zarlink ZL10039 DVB-S tuner");
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break;
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default:
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dprintk("Chip ID=%x does not match a known type\n", state->id);
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break;
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goto error;
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}
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memcpy(&fe->ops.tuner_ops, &zl10039_ops, sizeof(struct dvb_tuner_ops));
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fe->tuner_priv = state;
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dprintk("Tuner attached @ i2c address 0x%02x\n", i2c_addr);
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return fe;
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error:
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kfree(state);
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return NULL;
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}
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EXPORT_SYMBOL(zl10039_attach);
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
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MODULE_DESCRIPTION("Zarlink ZL10039 DVB-S tuner driver");
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MODULE_AUTHOR("Jan D. Louw <jd.louw@mweb.co.za>");
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MODULE_LICENSE("GPL");
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40
drivers/media/dvb/frontends/zl10039.h
Normal file
40
drivers/media/dvb/frontends/zl10039.h
Normal file
@ -0,0 +1,40 @@
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/*
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Driver for Zarlink ZL10039 DVB-S tuner
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Copyright (C) 2007 Jan D. Louw <jd.louw@mweb.co.za>
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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 ZL10039_H
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#define ZL10039_H
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#if defined(CONFIG_DVB_ZL10039) || (defined(CONFIG_DVB_ZL10039_MODULE) \
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&& defined(MODULE))
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struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
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u8 i2c_addr,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
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u8 i2c_addr,
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struct i2c_adapter *i2c)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif /* CONFIG_DVB_ZL10039 */
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#endif /* ZL10039_H */
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