V4L/DVB (12461): Add ce5039(zl10039) tuner support.
Igor M. Liplianin [Sat, 20 Jun 2009 12:51:48 +0000 (09:51 -0300)]
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>

drivers/media/dvb/frontends/Kconfig
drivers/media/dvb/frontends/Makefile
drivers/media/dvb/frontends/zl10039.c [new file with mode: 0644]
drivers/media/dvb/frontends/zl10039.h [new file with mode: 0644]

index be967ac..b794e86 100644 (file)
@@ -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
index 832473c..3b49d37 100644 (file)
@@ -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
diff --git a/drivers/media/dvb/frontends/zl10039.c b/drivers/media/dvb/frontends/zl10039.c
new file mode 100644 (file)
index 0000000..11b29cb
--- /dev/null
@@ -0,0 +1,308 @@
+/*
+ *  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");
diff --git a/drivers/media/dvb/frontends/zl10039.h b/drivers/media/dvb/frontends/zl10039.h
new file mode 100644 (file)
index 0000000..5eee7ea
--- /dev/null
@@ -0,0 +1,40 @@
+/*
+    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 */