1 files changed, 186 insertions, 0 deletions

diff --git a/drivers/media/dvb/mantis/mantis_vp2040.c b/drivers/media/dvb/mantis/mantis_vp2040.c
new file mode 100644
index 000000000000..a7ca233e800b
--- /dev/null
+++ b/drivers/media/dvb/mantis/mantis_vp2040.c
@@ -0,0 +1,186 @@
+/*
+        Mantis VP-2040 driver
+
+        Copyright (C) Manu Abraham (abraham.manu@gmail.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.
+*/
+
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+#include "dvb_net.h"
+
+#include "tda1002x.h"
+#include "mantis_common.h"
+#include "mantis_ioc.h"
+#include "mantis_dvb.h"
+#include "mantis_vp2040.h"
+
+#define MANTIS_MODEL_NAME       "VP-2040"
+#define MANTIS_DEV_TYPE         "DVB-C"
+
+struct tda1002x_config vp2040_tda1002x_cu1216_config = {
+        .demod_address  = 0x18 >> 1,
+        .invert         = 1,
+};
+
+struct tda10023_config vp2040_tda10023_cu1216_config = {
+        .demod_address  = 0x18 >> 1,
+        .invert         = 1,
+};
+
+static int tda1002x_cu1216_tuner_set(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
+{
+        struct mantis_pci *mantis       = fe->dvb->priv;
+        struct i2c_adapter *adapter     = &mantis->adapter;
+
+        u8 buf[6];
+        struct i2c_msg msg = {.addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf)};
+        int i;
+
+#define CU1216_IF 36125000
+#define TUNER_MUL 62500
+
+        u32 div = (params->frequency + CU1216_IF + TUNER_MUL / 2) / TUNER_MUL;
+
+        buf[0] = (div >> 8) & 0x7f;
+        buf[1] = div & 0xff;
+        buf[2] = 0xce;
+        buf[3] = (params->frequency < 150000000 ? 0x01 :
+                  params->frequency < 445000000 ? 0x02 : 0x04);
+        buf[4] = 0xde;
+        buf[5] = 0x20;
+
+        if (fe->ops.i2c_gate_ctrl)
+                fe->ops.i2c_gate_ctrl(fe, 1);
+
+        if (i2c_transfer(adapter, &msg, 1) != 1)
+                return -EIO;
+
+        /* wait for the pll lock */
+        msg.flags = I2C_M_RD;
+        msg.len = 1;
+        for (i = 0; i < 20; i++) {
+                if (fe->ops.i2c_gate_ctrl)
+                        fe->ops.i2c_gate_ctrl(fe, 1);
+
+                if (i2c_transfer(adapter, &msg, 1) == 1 && (buf[0] & 0x40))
+                        break;
+
+                msleep(10);
+        }
+
+        /* switch the charge pump to the lower current */
+        msg.flags = 0;
+        msg.len = 2;
+        msg.buf = &buf[2];
+        buf[2] &= ~0x40;
+        if (fe->ops.i2c_gate_ctrl)
+                fe->ops.i2c_gate_ctrl(fe, 1);
+
+        if (i2c_transfer(adapter, &msg, 1) != 1)
+                return -EIO;
+
+        return 0;
+}
+
+static u8 read_pwm(struct mantis_pci *mantis)
+{
+        struct i2c_adapter *adapter = &mantis->adapter;
+
+        u8 b = 0xff;
+        u8 pwm;
+        struct i2c_msg msg[] = {
+                {.addr = 0x50, .flags = 0, .buf = &b, .len = 1},
+                {.addr = 0x50, .flags = I2C_M_RD, .buf = &pwm, .len = 1}
+        };
+
+        if ((i2c_transfer(adapter, msg, 2) != 2)
+            || (pwm == 0xff))
+                pwm = 0x48;
+
+        return pwm;
+}
+
+static int vp2040_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
+{
+        struct i2c_adapter *adapter = &mantis->adapter;
+
+        int err = 0;
+
+        err = mantis_frontend_power(mantis, POWER_ON);
+        if (err == 0) {
+                mantis_frontend_soft_reset(mantis);
+                msleep(250);
+
+                dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)");
+                fe = tda10021_attach(&vp2040_tda1002x_cu1216_config,
+                                     adapter,
+                                     read_pwm(mantis));
+
+                if (fe) {
+                        dprintk(MANTIS_ERROR, 1,
+                                "found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x",
+                                vp2040_tda1002x_cu1216_config.demod_address);
+                } else {
+                        fe = tda10023_attach(&vp2040_tda10023_cu1216_config,
+                                             adapter,
+                                             read_pwm(mantis));
+
+                        if (fe) {
+                                dprintk(MANTIS_ERROR, 1,
+                                        "found Philips CU1216 DVB-C frontend (TDA10023) @ 0x%02x",
+                                        vp2040_tda1002x_cu1216_config.demod_address);
+                        }
+                }
+
+                if (fe) {
+                        fe->ops.tuner_ops.set_params = tda1002x_cu1216_tuner_set;
+                        dprintk(MANTIS_ERROR, 1, "Mantis DVB-C Philips CU1216 frontend attach success");
+                } else {
+                        return -1;
+                }
+        } else {
+                dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
+                        adapter->name,
+                        err);
+
+                return -EIO;
+        }
+        mantis->fe = fe;
+        dprintk(MANTIS_DEBUG, 1, "Done!");
+
+        return 0;
+}
+
+struct mantis_hwconfig vp2040_config = {
+        .model_name     = MANTIS_MODEL_NAME,
+        .dev_type       = MANTIS_DEV_TYPE,
+        .ts_size        = MANTIS_TS_204,
+
+        .baud_rate      = MANTIS_BAUD_9600,
+        .parity         = MANTIS_PARITY_NONE,
+        .bytes          = 0,
+
+        .frontend_init  = vp2040_frontend_init,
+        .power          = GPIF_A12,
+        .reset          = GPIF_A13,
+};