V4L/DVB (3408): DViCO FusionHDTV DVB-T Hybrid and ZL10353-based FusionHDTV DVB-T Plus support

Add support for the FE6600 tuner used on the DVB-T Hybrid board.
Add support for the Zarlink ZL10353 DVB-T demodulator, which supersedes the
MT352, used on the DViCO FusionHDTV DVB-T Hybrid and later model Plus boards.

Signed-off-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

7 files changed, 420 insertions, 0 deletions

diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig
index c676b1e23ab0..a1a894d81040 100644
--- a/drivers/media/dvb/frontends/Kconfig
+++ b/drivers/media/dvb/frontends/Kconfig
@@ -116,6 +116,12 @@ config DVB_MT352
         help
           A DVB-T tuner module. Say Y when you want to support this frontend.
 
+config DVB_ZL10353
+        tristate "Zarlink ZL10353 based"
+        depends on DVB_CORE
+        help
+          A DVB-T tuner module. Say Y when you want to support this frontend.
+
 config DVB_DIB3000MB
         tristate "DiBcom 3000M-B"
         depends on DVB_CORE
diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile
index 1af769cd90c0..d09b6071fbaf 100644
--- a/drivers/media/dvb/frontends/Makefile
+++ b/drivers/media/dvb/frontends/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_DVB_TDA1004X) += tda1004x.o
 obj-$(CONFIG_DVB_SP887X) += sp887x.o
 obj-$(CONFIG_DVB_NXT6000) += nxt6000.o
 obj-$(CONFIG_DVB_MT352) += mt352.o
+obj-$(CONFIG_DVB_ZL10353) += zl10353.o
 obj-$(CONFIG_DVB_CX22702) += cx22702.o
 obj-$(CONFIG_DVB_TDA10021) += tda10021.o
 obj-$(CONFIG_DVB_STV0297) += stv0297.o
diff --git a/drivers/media/dvb/frontends/dvb-pll.c b/drivers/media/dvb/frontends/dvb-pll.c
index 4f682534df42..8a4c904d3a27 100644
--- a/drivers/media/dvb/frontends/dvb-pll.c
+++ b/drivers/media/dvb/frontends/dvb-pll.c
@@ -404,6 +404,21 @@ struct dvb_pll_desc dvb_pll_philips_td1316 = {
 };
 EXPORT_SYMBOL(dvb_pll_philips_td1316);
 
+/* FE6600 used on DViCO Hybrid */
+struct dvb_pll_desc dvb_pll_unknown_fe6600 = {
+        .name = "FE6600",
+        .min =  44250000,
+        .max = 858000000,
+        .count = 4,
+        .entries = {
+                { 250000000, 36213333, 166667, 0xb4, 0x12 },
+                { 455000000, 36213333, 166667, 0xfe, 0x11 },
+                { 775500000, 36213333, 166667, 0xbc, 0x18 },
+                { 999999999, 36213333, 166667, 0xf4, 0x18 },
+        }
+};
+EXPORT_SYMBOL(dvb_pll_unknown_fe6600);
+
 /* ----------------------------------------------------------- */
 /* code                                                        */
 
diff --git a/drivers/media/dvb/frontends/dvb-pll.h b/drivers/media/dvb/frontends/dvb-pll.h
index 56c3cd76a7fa..8a7f0b941c38 100644
--- a/drivers/media/dvb/frontends/dvb-pll.h
+++ b/drivers/media/dvb/frontends/dvb-pll.h
@@ -42,6 +42,8 @@ extern struct dvb_pll_desc dvb_pll_samsung_tbmv;
 extern struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261;
 extern struct dvb_pll_desc dvb_pll_philips_td1316;
 
+extern struct dvb_pll_desc dvb_pll_unknown_fe6600;
+
 int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf,
                       u32 freq, int bandwidth);
 
diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
new file mode 100644
index 000000000000..23846c4452ad
--- /dev/null
+++ b/drivers/media/dvb/frontends/zl10353.c
@@ -0,0 +1,311 @@
+/*
+ * Driver for Zarlink DVB-T ZL10353 demodulator
+ *
+ * Copyright (C) 2006 Christopher Pascoe <c.pascoe@itee.uq.edu.au>
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include "dvb_frontend.h"
+#include "zl10353_priv.h"
+#include "zl10353.h"
+
+struct zl10353_state {
+        struct i2c_adapter *i2c;
+        struct dvb_frontend frontend;
+        struct dvb_frontend_ops ops;
+
+        struct zl10353_config config;
+};
+
+static int debug_regs = 0;
+
+static int zl10353_single_write(struct dvb_frontend *fe, u8 reg, u8 val)
+{
+        struct zl10353_state *state = fe->demodulator_priv;
+        u8 buf[2] = { reg, val };
+        struct i2c_msg msg = { .addr = state->config.demod_address, .flags = 0,
+                               .buf = buf, .len = 2 };
+        int err = i2c_transfer(state->i2c, &msg, 1);
+        if (err != 1) {
+                printk("zl10353: write to reg %x failed (err = %d)!\n", reg, err);
+                return err;
+        }
+        return 0;
+}
+
+int zl10353_write(struct dvb_frontend *fe, u8 *ibuf, int ilen)
+{
+        int err, i;
+        for (i = 0; i < ilen - 1; i++)
+                if ((err = zl10353_single_write(fe, ibuf[0] + i, ibuf[i + 1])))
+                        return err;
+
+        return 0;
+}
+
+static int zl10353_read_register(struct zl10353_state *state, u8 reg)
+{
+        int ret;
+        u8 b0[1] = { reg };
+        u8 b1[1] = { 0 };
+        struct i2c_msg msg[2] = { { .addr = state->config.demod_address,
+                                    .flags = 0,
+                                    .buf = b0, .len = 1 },
+                                  { .addr = state->config.demod_address,
+                                    .flags = I2C_M_RD,
+                                    .buf = b1, .len = 1 } };
+
+        ret = i2c_transfer(state->i2c, msg, 2);
+
+        if (ret != 2) {
+                printk("%s: readreg error (reg=%d, ret==%i)\n",
+                       __FUNCTION__, reg, ret);
+                return ret;
+        }
+
+        return b1[0];
+}
+
+void zl10353_dump_regs(struct dvb_frontend *fe)
+{
+        struct zl10353_state *state = fe->demodulator_priv;
+        char buf[52], buf2[4];
+        int ret;
+        u8 reg;
+
+        /* Dump all registers. */
+        for (reg = 0; ; reg++) {
+                if (reg % 16 == 0) {
+                        if (reg)
+                                printk(KERN_DEBUG "%s\n", buf);
+                        sprintf(buf, "%02x: ", reg);
+                }
+                ret = zl10353_read_register(state, reg);
+                if (ret >= 0)
+                        sprintf(buf2, "%02x ", (u8)ret);
+                else
+                        strcpy(buf2, "-- ");
+                strcat(buf, buf2);
+                if (reg == 0xff)
+                        break;
+        }
+        printk(KERN_DEBUG "%s\n", buf);
+}
+
+static int zl10353_sleep(struct dvb_frontend *fe)
+{
+        static u8 zl10353_softdown[] = { 0x50, 0x0C, 0x44 };
+
+        zl10353_write(fe, zl10353_softdown, sizeof(zl10353_softdown));
+        return 0;
+}
+
+static int zl10353_set_parameters(struct dvb_frontend *fe,
+                                  struct dvb_frontend_parameters *param)
+{
+        struct zl10353_state *state = fe->demodulator_priv;
+        u8 pllbuf[6] = { 0x67 };
+
+        /* These settings set "auto-everything" and start the FSM. */
+        zl10353_single_write(fe, 0x55, 0x80);
+        udelay(200);
+        zl10353_single_write(fe, 0xEA, 0x01);
+        udelay(200);
+        zl10353_single_write(fe, 0xEA, 0x00);
+
+        zl10353_single_write(fe, 0x56, 0x28);
+        zl10353_single_write(fe, 0x89, 0x20);
+        zl10353_single_write(fe, 0x5E, 0x00);
+        zl10353_single_write(fe, 0x65, 0x5A);
+        zl10353_single_write(fe, 0x66, 0xE9);
+        zl10353_single_write(fe, 0x62, 0x0A);
+
+        state->config.pll_set(fe, param, pllbuf + 1);
+        zl10353_write(fe, pllbuf, sizeof(pllbuf));
+
+        zl10353_single_write(fe, 0x70, 0x01);
+        udelay(250);
+        zl10353_single_write(fe, 0xE4, 0x00);
+        zl10353_single_write(fe, 0xE5, 0x2A);
+        zl10353_single_write(fe, 0xE9, 0x02);
+        zl10353_single_write(fe, 0xE7, 0x40);
+        zl10353_single_write(fe, 0xE8, 0x10);
+
+        return 0;
+}
+
+static int zl10353_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+        struct zl10353_state *state = fe->demodulator_priv;
+        int s6, s7, s8;
+
+        if ((s6 = zl10353_read_register(state, STATUS_6)) < 0)
+                return -EREMOTEIO;
+        if ((s7 = zl10353_read_register(state, STATUS_7)) < 0)
+                return -EREMOTEIO;
+        if ((s8 = zl10353_read_register(state, STATUS_8)) < 0)
+                return -EREMOTEIO;
+
+        *status = 0;
+        if (s6 & (1 << 2))
+                *status |= FE_HAS_CARRIER;
+        if (s6 & (1 << 1))
+                *status |= FE_HAS_VITERBI;
+        if (s6 & (1 << 5))
+                *status |= FE_HAS_LOCK;
+        if (s7 & (1 << 4))
+                *status |= FE_HAS_SYNC;
+        if (s8 & (1 << 6))
+                *status |= FE_HAS_SIGNAL;
+
+        if ((*status & (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)) !=
+            (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC))
+                *status &= ~FE_HAS_LOCK;
+
+        return 0;
+}
+
+static int zl10353_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+        struct zl10353_state *state = fe->demodulator_priv;
+        u8 _snr;
+
+        if (debug_regs)
+                zl10353_dump_regs(fe);
+
+        _snr = zl10353_read_register(state, SNR);
+        *snr = (_snr << 8) | _snr;
+
+        return 0;
+}
+
+static int zl10353_get_tune_settings(struct dvb_frontend *fe,
+                                     struct dvb_frontend_tune_settings
+                                         *fe_tune_settings)
+{
+        fe_tune_settings->min_delay_ms = 1000;
+        fe_tune_settings->step_size = 0;
+        fe_tune_settings->max_drift = 0;
+
+        return 0;
+}
+
+static int zl10353_init(struct dvb_frontend *fe)
+{
+        struct zl10353_state *state = fe->demodulator_priv;
+        u8 zl10353_reset_attach[6] = { 0x50, 0x03, 0x64, 0x46, 0x15, 0x0F };
+        int rc = 0;
+
+        if (debug_regs)
+                zl10353_dump_regs(fe);
+
+        /* Do a "hard" reset if not already done */
+        if (zl10353_read_register(state, 0x50) != 0x03) {
+                rc = zl10353_write(fe, zl10353_reset_attach,
+                                   sizeof(zl10353_reset_attach));
+                if (debug_regs)
+                        zl10353_dump_regs(fe);
+        }
+
+        return 0;
+}
+
+static void zl10353_release(struct dvb_frontend *fe)
+{
+        struct zl10353_state *state = fe->demodulator_priv;
+
+        kfree(state);
+}
+
+static struct dvb_frontend_ops zl10353_ops;
+
+struct dvb_frontend *zl10353_attach(const struct zl10353_config *config,
+                                    struct i2c_adapter *i2c)
+{
+        struct zl10353_state *state = NULL;
+
+        /* allocate memory for the internal state */
+        state = kzalloc(sizeof(struct zl10353_state), GFP_KERNEL);
+        if (state == NULL)
+                goto error;
+
+        /* setup the state */
+        state->i2c = i2c;
+        memcpy(&state->config, config, sizeof(struct zl10353_config));
+        memcpy(&state->ops, &zl10353_ops, sizeof(struct dvb_frontend_ops));
+
+        /* check if the demod is there */
+        if (zl10353_read_register(state, CHIP_ID) != ID_ZL10353)
+                goto error;
+
+        /* create dvb_frontend */
+        state->frontend.ops = &state->ops;
+        state->frontend.demodulator_priv = state;
+
+        return &state->frontend;
+error:
+        kfree(state);
+        return NULL;
+}
+
+static struct dvb_frontend_ops zl10353_ops = {
+
+        .info = {
+                .name                   = "Zarlink ZL10353 DVB-T",
+                .type                   = FE_OFDM,
+                .frequency_min          = 174000000,
+                .frequency_max          = 862000000,
+                .frequency_stepsize     = 166667,
+                .frequency_tolerance    = 0,
+                .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_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+                        FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
+                        FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER |
+                        FE_CAN_MUTE_TS
+        },
+
+        .release = zl10353_release,
+
+        .init = zl10353_init,
+        .sleep = zl10353_sleep,
+
+        .set_frontend = zl10353_set_parameters,
+        .get_tune_settings = zl10353_get_tune_settings,
+
+        .read_status = zl10353_read_status,
+        .read_snr = zl10353_read_snr,
+};
+
+module_param(debug_regs, int, 0644);
+MODULE_PARM_DESC(debug_regs, "Turn on/off frontend register dumps (default:off).");
+
+MODULE_DESCRIPTION("Zarlink ZL10353 DVB-T demodulator driver");
+MODULE_AUTHOR("Chris Pascoe");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(zl10353_attach);
+EXPORT_SYMBOL(zl10353_write);
diff --git a/drivers/media/dvb/frontends/zl10353.h b/drivers/media/dvb/frontends/zl10353.h
new file mode 100644
index 000000000000..5cc4ae718d8c
--- /dev/null
+++ b/drivers/media/dvb/frontends/zl10353.h
@@ -0,0 +1,43 @@
+/*
+ *  Driver for Zarlink DVB-T ZL10353 demodulator
+ *
+ *  Copyright (C) 2006 Christopher Pascoe <c.pascoe@itee.uq.edu.au>
+ *
+ *  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 ZL10353_H
+#define ZL10353_H
+
+#include <linux/dvb/frontend.h>
+
+struct zl10353_config
+{
+        /* demodulator's I2C address */
+        u8 demod_address;
+
+        /* function which configures the PLL buffer (for secondary I2C
+         * connected tuner) or tunes the PLL (for direct connected tuner) */
+        int (*pll_set)(struct dvb_frontend *fe,
+                       struct dvb_frontend_parameters *params, u8 *pllbuf);
+};
+
+extern struct dvb_frontend* zl10353_attach(const struct zl10353_config *config,
+                                           struct i2c_adapter *i2c);
+
+extern int zl10353_write(struct dvb_frontend *fe, u8 *ibuf, int ilen);
+
+#endif /* ZL10353_H */
diff --git a/drivers/media/dvb/frontends/zl10353_priv.h b/drivers/media/dvb/frontends/zl10353_priv.h
new file mode 100644
index 000000000000..b72224bd7dde
--- /dev/null
+++ b/drivers/media/dvb/frontends/zl10353_priv.h
@@ -0,0 +1,42 @@
+/*
+ *  Driver for Zarlink DVB-T ZL10353 demodulator
+ *
+ *  Copyright (C) 2006 Christopher Pascoe <c.pascoe@itee.uq.edu.au>
+ *
+ *  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 _ZL10353_PRIV_
+#define _ZL10353_PRIV_
+
+#define ID_ZL10353      0x14
+
+enum zl10353_reg_addr {
+        INTERRUPT_0     = 0x00,
+        INTERRUPT_1     = 0x01,
+        INTERRUPT_2     = 0x02,
+        INTERRUPT_3     = 0x03,
+        INTERRUPT_4     = 0x04,
+        INTERRUPT_5     = 0x05,
+        STATUS_6        = 0x06,
+        STATUS_7        = 0x07,
+        STATUS_8        = 0x08,
+        STATUS_9        = 0x09,
+        SNR             = 0x10,
+        CHIP_ID         = 0x7F,
+};
+
+#endif                          /* _ZL10353_PRIV_ */