V4L/DVB (9366): Move S921 driver to the proper place and allow it to compile

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
author: Mauro Carvalho Chehab <mchehab@redhat.com> 2008-10-24 12:44:38 -0400
committer: Mauro Carvalho Chehab <mchehab@redhat.com> 2008-12-29 14:53:13 -0500
commit: c2e591fcb7aa5300cf6967edb29960628cf1831d (patch)
tree: fc334916c6b90395ad1583c2b8638116284a54f8 /drivers/media/dvb/frontends
parent: 67ea14f250c295486baa3440ca85be0b032fda95 (diff)
6 files changed, 583 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig
index 96b93e21a84b..8da1e81668e7 100644
--- a/drivers/media/dvb/frontends/Kconfig
+++ b/drivers/media/dvb/frontends/Kconfig
@@ -369,6 +369,17 @@ config DVB_S5H1411
          An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
          to support this frontend.
+comment "ISDB-T (terrestrial) frontends"
+        depends on DVB_CORE
+config DVB_S921
+        tristate "Sharp S921 tuner"
+        depends on DVB_CORE && I2C
+        default m if DVB_FE_CUSTOMISE
+        help
+          AN ISDB-T DQPSK, QPSK, 16QAM and 64QAM 1seg tuner module.
+          Say Y when you want to support this frontend.
 comment "Digital terrestrial only tuners/PLL"
        depends on DVB_CORE
diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile
index aba79f4a63a7..11a5407ecdb7 100644
--- a/drivers/media/dvb/frontends/Makefile
+++ b/drivers/media/dvb/frontends/Makefile
@@ -5,6 +5,8 @@
 EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/
 EXTRA_CFLAGS += -Idrivers/media/common/tuners/
+s921-objs := s921_module.o s921_core.o
 obj-$(CONFIG_DVB_PLL) += dvb-pll.o
 obj-$(CONFIG_DVB_STV0299) += stv0299.o
 obj-$(CONFIG_DVB_SP8870) += sp8870.o
@@ -55,3 +57,4 @@ obj-$(CONFIG_DVB_CX24116) += cx24116.o
 obj-$(CONFIG_DVB_SI21XX) += si21xx.o
 obj-$(CONFIG_DVB_STV0288) += stv0288.o
 obj-$(CONFIG_DVB_STB6000) += stb6000.o
+obj-$(CONFIG_DVB_S921) += s921.o
diff --git a/drivers/media/dvb/frontends/s921_core.c b/drivers/media/dvb/frontends/s921_core.c
new file mode 100644
index 000000000000..974b52be9aea
--- /dev/null
+++ b/drivers/media/dvb/frontends/s921_core.c
@@ -0,0 +1,216 @@
+/*
+ * Driver for Sharp s921 driver
+ *
+ * Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include "s921_core.h"
+static int s921_isdb_init(struct s921_isdb_t *dev);
+static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params);
+static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params);
+static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data);
+static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01,
+                         0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00,
+                         0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00,
+                         0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80,
+                         0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12,
+                         0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00,
+                         0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff,
+                         0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00,
+                         0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88,
+                         0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00,
+                         0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06,
+                         0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00,
+                         0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00,
+                         0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20,
+                         0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70,
+                         0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f,
+                         0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00,
+                         0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00,
+                         0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30,
+                         0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d,
+                         0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f,
+                         0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00,
+                         0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84,
+                         0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e,
+                         0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba,
+                         0xf8, 0xd7 };
+static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b,
+                      0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b,
+                      0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b,
+                      0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b,
+                      0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b,
+                      0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b,
+                      0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b,
+                      0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb,
+                      0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb,
+                      0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb,
+                      0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb,
+                      0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb,
+                      0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb,
+                      0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b,
+                      0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b,
+                      0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b,
+                      0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b };
+int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data) {
+        switch(cmd) {
+        case ISDB_T_CMD_INIT:
+                s921_isdb_init(dev);
+                break;
+        case ISDB_T_CMD_SET_PARAM:
+                s921_isdb_set_parameters(dev, data);
+                break;
+        case ISDB_T_CMD_TUNE:
+                s921_isdb_tune(dev, data);
+                break;
+        case ISDB_T_CMD_GET_STATUS:
+                s921_isdb_get_status(dev, data);
+                break;
+        default:
+                printk("unhandled command\n");
+                return -EINVAL;
+        }
+        return 0;
+}
+static int s921_isdb_init(struct s921_isdb_t *dev) {
+        unsigned int i;
+        unsigned int ret;
+        printk("isdb_init\n");
+        for (i = 0; i < sizeof(init_table); i+=2) {
+                ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]);
+                if (ret != 0) {
+                        printk("i2c write failed\n");
+                        return ret;
+                }
+        }
+        return 0;
+}
+static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params) {
+        int ret;
+        /* auto is sufficient for now, lateron this should be reflected in an extra interface */
+        ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2);
+        ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7);
+        if (ret < 0)
+                return -EINVAL;
+        return E_OK;
+}
+static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params) {
+        int ret;
+        int index;
+        index = (params->frequency - 473143000)/6000000;
+        if (index > 48) {
+                return -EINVAL;
+        }
+        dev->i2c_write(dev->priv_dev, 0x47, 0x60);
+        ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a);
+        if (ret < 0)
+                return -EINVAL;
+        ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09);
+        if (ret < 0)
+                return -EINVAL;
+        dev->i2c_write(dev->priv_dev, 0x01, 0x40);
+        return 0;
+}
+static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data) {
+        unsigned int *ret = (unsigned int*)data;
+        u8 ifagc_dt;
+        u8 rfagc_dt;
+        mdelay(10);
+        ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81);
+        rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82);
+        if (rfagc_dt == 0x40) {
+                *ret = 1;
+        }
+        return 0;
+}
diff --git a/drivers/media/dvb/frontends/s921_core.h b/drivers/media/dvb/frontends/s921_core.h
new file mode 100644
index 000000000000..de2f10a44e72
--- /dev/null
+++ b/drivers/media/dvb/frontends/s921_core.h
@@ -0,0 +1,114 @@
+#ifndef _S921_CORE_H
+#define _S921_CORE_H
+//#define u8 unsigned int
+//#define u32 unsigned int
+//#define EINVAL -1
+#define E_OK 0
+struct s921_isdb_t {
+        void *priv_dev;
+        int (*i2c_write)(void *dev, u8 reg, u8 val);
+        int (*i2c_read)(void *dev, u8 reg);
+};
+#define ISDB_T_CMD_INIT       0
+#define ISDB_T_CMD_SET_PARAM  1
+#define ISDB_T_CMD_TUNE       2
+#define ISDB_T_CMD_GET_STATUS 3
+struct s921_isdb_t_tune_params {
+        u32 frequency;
+};
+struct s921_isdb_t_status {
+};
+struct s921_isdb_t_transmission_mode_params {
+        u8 mode;
+        u8 layer_a_mode;
+#define ISDB_T_LA_MODE_1 0
+#define ISDB_T_LA_MODE_2 1
+#define ISDB_T_LA_MODE_3 2
+        u8 layer_a_carrier_modulation;
+#define ISDB_T_LA_CM_DQPSK 0
+#define ISDB_T_LA_CM_QPSK  1
+#define ISDB_T_LA_CM_16QAM 2
+#define ISDB_T_LA_CM_64QAM 3
+#define ISDB_T_LA_CM_NOLAYER 4
+        u8 layer_a_code_rate;
+#define ISDB_T_LA_CR_1_2   0
+#define ISDB_T_LA_CR_2_3   1
+#define ISDB_T_LA_CR_3_4   2
+#define ISDB_T_LA_CR_5_6   4
+#define ISDB_T_LA_CR_7_8   8
+#define ISDB_T_LA_CR_NOLAYER   16
+        u8 layer_a_time_interleave;
+#define ISDB_T_LA_TI_0  0
+#define ISDB_T_LA_TI_1  1
+#define ISDB_T_LA_TI_2  2
+#define ISDB_T_LA_TI_4  4
+#define ISDB_T_LA_TI_8  8
+#define ISDB_T_LA_TI_16 16
+#define ISDB_T_LA_TI_32 32
+        u8 layer_a_nseg;
+        u8 layer_b_mode;
+#define ISDB_T_LB_MODE_1 0
+#define ISDB_T_LB_MODE_2 1
+#define ISDB_T_LB_MODE_3 2
+        u8 layer_b_carrier_modulation;
+#define ISDB_T_LB_CM_DQPSK 0
+#define ISDB_T_LB_CM_QPSK  1
+#define ISDB_T_LB_CM_16QAM 2
+#define ISDB_T_LB_CM_64QAM 3
+#define ISDB_T_LB_CM_NOLAYER 4
+        u8 layer_b_code_rate;
+#define ISDB_T_LB_CR_1_2   0
+#define ISDB_T_LB_CR_2_3   1
+#define ISDB_T_LB_CR_3_4   2
+#define ISDB_T_LB_CR_5_6   4
+#define ISDB_T_LB_CR_7_8   8
+#define ISDB_T_LB_CR_NOLAYER   16
+        u8 layer_b_time_interleave;
+#define ISDB_T_LB_TI_0  0
+#define ISDB_T_LB_TI_1  1
+#define ISDB_T_LB_TI_2  2
+#define ISDB_T_LB_TI_4  4
+#define ISDB_T_LB_TI_8  8
+#define ISDB_T_LB_TI_16 16
+#define ISDB_T_LB_TI_32 32
+        u8 layer_b_nseg;
+        u8 layer_c_mode;
+#define ISDB_T_LC_MODE_1 0
+#define ISDB_T_LC_MODE_2 1
+#define ISDB_T_LC_MODE_3 2
+        u8 layer_c_carrier_modulation;
+#define ISDB_T_LC_CM_DQPSK 0
+#define ISDB_T_LC_CM_QPSK  1
+#define ISDB_T_LC_CM_16QAM 2
+#define ISDB_T_LC_CM_64QAM 3
+#define ISDB_T_LC_CM_NOLAYER 4
+        u8 layer_c_code_rate;
+#define ISDB_T_LC_CR_1_2   0
+#define ISDB_T_LC_CR_2_3   1
+#define ISDB_T_LC_CR_3_4   2
+#define ISDB_T_LC_CR_5_6   4
+#define ISDB_T_LC_CR_7_8   8
+#define ISDB_T_LC_CR_NOLAYER   16
+        u8 layer_c_time_interleave;
+#define ISDB_T_LC_TI_0  0
+#define ISDB_T_LC_TI_1  1
+#define ISDB_T_LC_TI_2  2
+#define ISDB_T_LC_TI_4  4
+#define ISDB_T_LC_TI_8  8
+#define ISDB_T_LC_TI_16 16
+#define ISDB_T_LC_TI_32 32
+        u8 layer_c_nseg;
+};
+int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data);
+#endif
diff --git a/drivers/media/dvb/frontends/s921_module.c b/drivers/media/dvb/frontends/s921_module.c
new file mode 100644
index 000000000000..3cbb9cb2cf47
--- /dev/null
+++ b/drivers/media/dvb/frontends/s921_module.c
@@ -0,0 +1,190 @@
+/*
+ * Driver for Sharp s921 driver
+ *
+ * Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
+ *
+ * All rights reserved.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include "dvb_frontend.h"
+#include "s921_module.h"
+#include "s921_core.h"
+static  unsigned int debug = 0;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug,"s921 debugging (default off)");
+#define dprintk(fmt, args...) if (debug) do {\
+                        printk("s921 debug: " fmt, ##args); } while (0)
+struct s921_state
+{
+        struct dvb_frontend frontend;
+        fe_modulation_t current_modulation;
+        __u32 snr;
+        __u32 current_frequency;
+        __u8 addr;
+        struct s921_isdb_t dev;
+        struct i2c_adapter *i2c;
+};
+static int s921_set_parameters(struct dvb_frontend *fe, struct dvb_frontend_parameters *param) {
+        struct s921_state *state = (struct s921_state *)fe->demodulator_priv;
+        struct s921_isdb_t_transmission_mode_params params;
+        struct s921_isdb_t_tune_params tune_params;
+        tune_params.frequency = param->frequency;
+        s921_isdb_cmd(&state->dev, ISDB_T_CMD_SET_PARAM, &params);
+        s921_isdb_cmd(&state->dev, ISDB_T_CMD_TUNE, &tune_params);
+        mdelay(100);
+        return 0;
+}
+static int s921_init(struct dvb_frontend *fe) {
+        printk("s921 init\n");
+        return 0;
+}
+static int s921_sleep(struct dvb_frontend *fe) {
+        printk("s921 sleep\n");
+        return 0;
+}
+static int s921_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+        struct s921_state *state = (struct s921_state *)fe->demodulator_priv;
+        unsigned int ret;
+        mdelay(5);
+        s921_isdb_cmd(&state->dev, ISDB_T_CMD_GET_STATUS, &ret);
+        *status = 0;
+        printk("status: %02x\n", ret);
+        if (ret == 1) {
+                *status |= FE_HAS_CARRIER;
+                *status |= FE_HAS_VITERBI;
+                *status |= FE_HAS_LOCK;
+                *status |= FE_HAS_SYNC;
+                *status |= FE_HAS_SIGNAL;
+        }
+        return 0;
+}
+static int s921_read_ber(struct dvb_frontend *fe, __u32 *ber)
+{
+        dprintk("read ber\n");
+        return 0;
+}
+static int s921_read_snr(struct dvb_frontend *fe, __u16 *snr)
+{
+        dprintk("read snr\n");
+        return 0;
+}
+static int s921_read_ucblocks(struct dvb_frontend *fe, __u32 *ucblocks)
+{
+        dprintk("read ucblocks\n");
+        return 0;
+}
+static void s921_release(struct dvb_frontend *fe)
+{
+        struct s921_state *state = (struct s921_state *)fe->demodulator_priv;
+        kfree(state);
+}
+static struct dvb_frontend_ops demod_s921={
+        .info = {
+                .name                   = "SHARP S921",
+                .type                   = FE_OFDM,
+                .frequency_min          = 473143000,
+                .frequency_max          = 767143000,
+                .frequency_stepsize     =   6000000,
+                .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
+        },
+        .init = s921_init,
+        .sleep = s921_sleep,
+        .set_frontend = s921_set_parameters,
+        .read_snr = s921_read_snr,
+        .read_ber = s921_read_ber,
+        .read_status = s921_read_status,
+        .read_ucblocks = s921_read_ucblocks,
+        .release = s921_release,
+};
+static int s921_write(void *dev, u8 reg, u8 val) {
+        struct s921_state *state = dev;
+        char buf[2]={reg,val};
+        int err;
+        struct i2c_msg i2cmsgs = {
+                .addr = state->addr,
+                .flags = 0,
+                .len = 2,
+                .buf = buf
+        };
+        if((err = i2c_transfer(state->i2c, &i2cmsgs, 1))<0) {
+                printk("%s i2c_transfer error %d\n", __FUNCTION__, err);
+                if (err < 0)
+                        return err;
+                else
+                        return -EREMOTEIO;
+        }
+        return 0;
+}
+static int s921_read(void *dev, u8 reg) {
+        struct s921_state *state = dev;
+        u8 b1;
+        int ret;
+        struct i2c_msg msg[2] = { { .addr = state->addr,
+                                    .flags = 0,
+                                    .buf = &reg, .len = 1 },
+                                  { .addr = state->addr,
+                                    .flags = I2C_M_RD,
+                                    .buf = &b1, .len = 1 } };
+        ret = i2c_transfer(state->i2c, msg, 2);
+        if (ret != 2)
+                return ret;
+        return b1;
+}
+struct dvb_frontend* s921_attach(const struct s921_config *config,
+                                           struct i2c_adapter *i2c)
+{
+        struct s921_state *state;
+        state = kzalloc(sizeof(struct s921_state), GFP_KERNEL);
+        memset(state, 0x0, sizeof(struct s921_state));
+        state->addr = config->i2c_address;
+        state->i2c = i2c;
+        state->dev.i2c_write = &s921_write;
+        state->dev.i2c_read = &s921_read;
+        state->dev.priv_dev = state;
+        s921_isdb_cmd(&state->dev, ISDB_T_CMD_INIT, NULL);
+        memcpy(&state->frontend.ops, &demod_s921, sizeof(struct dvb_frontend_ops));
+        state->frontend.demodulator_priv = state;
+        return &state->frontend;
+}
+EXPORT_SYMBOL_GPL(s921_attach);
+MODULE_AUTHOR("Markus Rechberger <mrechberger@empiatech.com>");
+MODULE_DESCRIPTION("Sharp S921 ISDB-T 1Seg");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/dvb/frontends/s921_module.h b/drivers/media/dvb/frontends/s921_module.h
new file mode 100644
index 000000000000..78660424ba95
--- /dev/null
+++ b/drivers/media/dvb/frontends/s921_module.h
@@ -0,0 +1,49 @@
+/*
+ *  Driver for DVB-T s921 demodulator
+ *
+ *  Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
+ *
+ *  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 S921_MODULE_H
+#define S921_MODULE_H
+#include <linux/dvb/frontend.h>
+#include "s921_core.h"
+int s921_isdb_init(struct s921_isdb_t *dev);
+int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data);
+struct s921_config
+{
+        /* demodulator's I2C address */
+        u8 i2c_address;
+};
+#if defined(CONFIG_DVB_S921) || (defined(CONFIG_DVB_S921_MODULE) && defined(MODULE))
+extern struct dvb_frontend* s921_attach(const struct s921_config *config,
+                                           struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend* s921_attach(const struct s921_config *config,
+                                           struct i2c_adapter *i2c)
+{
+        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+        return NULL;
+}
+#endif /* CONFIG_DVB_S921 */
+#endif /* S921_H */
author	Mauro Carvalho Chehab <mchehab@redhat.com>	2008-10-24 12:44:38 -0400
committer	Mauro Carvalho Chehab <mchehab@redhat.com>	2008-12-29 14:53:13 -0500
commit	c2e591fcb7aa5300cf6967edb29960628cf1831d (patch)
tree	fc334916c6b90395ad1583c2b8638116284a54f8 /drivers/media/dvb/frontends
parent	67ea14f250c295486baa3440ca85be0b032fda95 (diff)

diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index 96b93e21a84b..8da1e81668e7 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig
@@ -369,6 +369,17 @@ config DVB_S5H1411
369	An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want	369	An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
370	to support this frontend.	370	to support this frontend.
371		371
		372	comment "ISDB-T (terrestrial) frontends"
		373	depends on DVB_CORE
		374
		375	config DVB_S921
		376	tristate "Sharp S921 tuner"
		377	depends on DVB_CORE && I2C
		378	default m if DVB_FE_CUSTOMISE
		379	help
		380	AN ISDB-T DQPSK, QPSK, 16QAM and 64QAM 1seg tuner module.
		381	Say Y when you want to support this frontend.
		382
372	comment "Digital terrestrial only tuners/PLL"	383	comment "Digital terrestrial only tuners/PLL"
373	depends on DVB_CORE	384	depends on DVB_CORE
374		385


diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index aba79f4a63a7..11a5407ecdb7 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile
@@ -5,6 +5,8 @@
5	EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/	5	EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/
6	EXTRA_CFLAGS += -Idrivers/media/common/tuners/	6	EXTRA_CFLAGS += -Idrivers/media/common/tuners/
7		7
		8	s921-objs := s921_module.o s921_core.o
		9
8	obj-$(CONFIG_DVB_PLL) += dvb-pll.o	10	obj-$(CONFIG_DVB_PLL) += dvb-pll.o
9	obj-$(CONFIG_DVB_STV0299) += stv0299.o	11	obj-$(CONFIG_DVB_STV0299) += stv0299.o
10	obj-$(CONFIG_DVB_SP8870) += sp8870.o	12	obj-$(CONFIG_DVB_SP8870) += sp8870.o
@@ -55,3 +57,4 @@ obj-$(CONFIG_DVB_CX24116) += cx24116.o
55	obj-$(CONFIG_DVB_SI21XX) += si21xx.o	57	obj-$(CONFIG_DVB_SI21XX) += si21xx.o
56	obj-$(CONFIG_DVB_STV0288) += stv0288.o	58	obj-$(CONFIG_DVB_STV0288) += stv0288.o
57	obj-$(CONFIG_DVB_STB6000) += stb6000.o	59	obj-$(CONFIG_DVB_STB6000) += stb6000.o
		60	obj-$(CONFIG_DVB_S921) += s921.o


diff --git a/drivers/media/dvb/frontends/s921_core.c b/drivers/media/dvb/frontends/s921_core.c new file mode 100644 index 000000000000..974b52be9aea --- /dev/null +++ b/drivers/media/dvb/frontends/s921_core.c
@@ -0,0 +1,216 @@
		1	/*
		2	* Driver for Sharp s921 driver
		3	*
		4	* Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
		5	*
		6	*/
		7
		8
		9	#include <linux/kernel.h>
		10	#include <linux/module.h>
		11	#include <linux/delay.h>
		12	#include "s921_core.h"
		13
		14	static int s921_isdb_init(struct s921_isdb_t *dev);
		15	static int s921_isdb_set_parameters(struct s921_isdb_t dev, struct s921_isdb_t_transmission_mode_params params);
		16	static int s921_isdb_tune(struct s921_isdb_t dev, struct s921_isdb_t_tune_params params);
		17	static int s921_isdb_get_status(struct s921_isdb_t dev, void data);
		18
		19	static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01,
		20	0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00,
		21	0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00,
		22	0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80,
		23	0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12,
		24	0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00,
		25	0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff,
		26	0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00,
		27	0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88,
		28	0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00,
		29	0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06,
		30	0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00,
		31	0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00,
		32	0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20,
		33	0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70,
		34	0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f,
		35	0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00,
		36	0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00,
		37	0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30,
		38	0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d,
		39	0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f,
		40	0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00,
		41	0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84,
		42	0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e,
		43	0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba,
		44	0xf8, 0xd7 };
		45
		46	static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b,
		47	0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b,
		48	0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b,
		49	0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b,
		50	0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b,
		51	0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b,
		52	0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b,
		53	0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb,
		54	0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb,
		55	0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb,
		56	0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb,
		57	0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb,
		58	0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb,
		59	0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b,
		60	0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b,
		61	0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b,
		62	0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b };
		63
		64	int s921_isdb_cmd(struct s921_isdb_t dev, u32 cmd, void data) {
		65	switch(cmd) {
		66	case ISDB_T_CMD_INIT:
		67	s921_isdb_init(dev);
		68	break;
		69	case ISDB_T_CMD_SET_PARAM:
		70	s921_isdb_set_parameters(dev, data);
		71	break;
		72	case ISDB_T_CMD_TUNE:
		73	s921_isdb_tune(dev, data);
		74	break;
		75	case ISDB_T_CMD_GET_STATUS:
		76	s921_isdb_get_status(dev, data);
		77	break;
		78	default:
		79	printk("unhandled command\n");
		80	return -EINVAL;
		81	}
		82	return 0;
		83	}
		84
		85	static int s921_isdb_init(struct s921_isdb_t *dev) {
		86	unsigned int i;
		87	unsigned int ret;
		88	printk("isdb_init\n");
		89	for (i = 0; i < sizeof(init_table); i+=2) {
		90	ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]);
		91	if (ret != 0) {
		92	printk("i2c write failed\n");
		93	return ret;
		94	}
		95	}
		96	return 0;
		97	}
		98
		99	static int s921_isdb_set_parameters(struct s921_isdb_t dev, struct s921_isdb_t_transmission_mode_params params) {
		100
		101	int ret;
		102	/* auto is sufficient for now, lateron this should be reflected in an extra interface */
		103
		104
		105
		106	ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2);
		107	ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2);
		108
		109	if (ret < 0)
		110	return -EINVAL;
		111
		112	ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3);
		113	if (ret < 0)
		114	return -EINVAL;
		115
		116	ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4);
		117	if (ret < 0)
		118	return -EINVAL;
		119
		120	ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5);
		121	if (ret < 0)
		122	return -EINVAL;
		123
		124	ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6);
		125	if (ret < 0)
		126	return -EINVAL;
		127
		128	ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7);
		129	if (ret < 0)
		130	return -EINVAL;
		131
		132	return E_OK;
		133	}
		134
		135	static int s921_isdb_tune(struct s921_isdb_t dev, struct s921_isdb_t_tune_params params) {
		136
		137	int ret;
		138	int index;
		139
		140	index = (params->frequency - 473143000)/6000000;
		141
		142	if (index > 48) {
		143	return -EINVAL;
		144	}
		145
		146	dev->i2c_write(dev->priv_dev, 0x47, 0x60);
		147
		148	ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00);
		149	if (ret < 0)
		150	return -EINVAL;
		151
		152	ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89);
		153	if (ret < 0)
		154	return -EINVAL;
		155
		156	ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48);
		157	if (ret < 0)
		158	return -EINVAL;
		159
		160	ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19);
		161	if (ret < 0)
		162	return -EINVAL;
		163
		164	ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]);
		165	if (ret < 0)
		166	return -EINVAL;
		167
		168	ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]);
		169	if (ret < 0)
		170	return -EINVAL;
		171
		172	ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]);
		173	if (ret < 0)
		174	return -EINVAL;
		175
		176	ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae);
		177	if (ret < 0)
		178	return -EINVAL;
		179
		180	ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7);
		181	if (ret < 0)
		182	return -EINVAL;
		183
		184	ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba);
		185	if (ret < 0)
		186	return -EINVAL;
		187
		188	ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7);
		189	if (ret < 0)
		190	return -EINVAL;
		191
		192	ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a);
		193	if (ret < 0)
		194	return -EINVAL;
		195
		196	ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09);
		197	if (ret < 0)
		198	return -EINVAL;
		199
		200	dev->i2c_write(dev->priv_dev, 0x01, 0x40);
		201	return 0;
		202	}
		203
		204	static int s921_isdb_get_status(struct s921_isdb_t dev, void data) {
		205	unsigned int ret = (unsigned int)data;
		206	u8 ifagc_dt;
		207	u8 rfagc_dt;
		208
		209	mdelay(10);
		210	ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81);
		211	rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82);
		212	if (rfagc_dt == 0x40) {
		213	*ret = 1;
		214	}
		215	return 0;
		216	}


diff --git a/drivers/media/dvb/frontends/s921_core.h b/drivers/media/dvb/frontends/s921_core.h new file mode 100644 index 000000000000..de2f10a44e72 --- /dev/null +++ b/drivers/media/dvb/frontends/s921_core.h
@@ -0,0 +1,114 @@
		1	#ifndef _S921_CORE_H
		2	#define _S921_CORE_H
		3	//#define u8 unsigned int
		4	//#define u32 unsigned int
		5
		6
		7
		8	//#define EINVAL -1
		9	#define E_OK 0
		10
		11	struct s921_isdb_t {
		12	void *priv_dev;
		13	int (i2c_write)(void dev, u8 reg, u8 val);
		14	int (i2c_read)(void dev, u8 reg);
		15	};
		16
		17	#define ISDB_T_CMD_INIT 0
		18	#define ISDB_T_CMD_SET_PARAM 1
		19	#define ISDB_T_CMD_TUNE 2
		20	#define ISDB_T_CMD_GET_STATUS 3
		21
		22	struct s921_isdb_t_tune_params {
		23	u32 frequency;
		24	};
		25
		26	struct s921_isdb_t_status {
		27	};
		28
		29	struct s921_isdb_t_transmission_mode_params {
		30	u8 mode;
		31	u8 layer_a_mode;
		32	#define ISDB_T_LA_MODE_1 0
		33	#define ISDB_T_LA_MODE_2 1
		34	#define ISDB_T_LA_MODE_3 2
		35	u8 layer_a_carrier_modulation;
		36	#define ISDB_T_LA_CM_DQPSK 0
		37	#define ISDB_T_LA_CM_QPSK 1
		38	#define ISDB_T_LA_CM_16QAM 2
		39	#define ISDB_T_LA_CM_64QAM 3
		40	#define ISDB_T_LA_CM_NOLAYER 4
		41	u8 layer_a_code_rate;
		42	#define ISDB_T_LA_CR_1_2 0
		43	#define ISDB_T_LA_CR_2_3 1
		44	#define ISDB_T_LA_CR_3_4 2
		45	#define ISDB_T_LA_CR_5_6 4
		46	#define ISDB_T_LA_CR_7_8 8
		47	#define ISDB_T_LA_CR_NOLAYER 16
		48	u8 layer_a_time_interleave;
		49	#define ISDB_T_LA_TI_0 0
		50	#define ISDB_T_LA_TI_1 1
		51	#define ISDB_T_LA_TI_2 2
		52	#define ISDB_T_LA_TI_4 4
		53	#define ISDB_T_LA_TI_8 8
		54	#define ISDB_T_LA_TI_16 16
		55	#define ISDB_T_LA_TI_32 32
		56	u8 layer_a_nseg;
		57
		58	u8 layer_b_mode;
		59	#define ISDB_T_LB_MODE_1 0
		60	#define ISDB_T_LB_MODE_2 1
		61	#define ISDB_T_LB_MODE_3 2
		62	u8 layer_b_carrier_modulation;
		63	#define ISDB_T_LB_CM_DQPSK 0
		64	#define ISDB_T_LB_CM_QPSK 1
		65	#define ISDB_T_LB_CM_16QAM 2
		66	#define ISDB_T_LB_CM_64QAM 3
		67	#define ISDB_T_LB_CM_NOLAYER 4
		68	u8 layer_b_code_rate;
		69	#define ISDB_T_LB_CR_1_2 0
		70	#define ISDB_T_LB_CR_2_3 1
		71	#define ISDB_T_LB_CR_3_4 2
		72	#define ISDB_T_LB_CR_5_6 4
		73	#define ISDB_T_LB_CR_7_8 8
		74	#define ISDB_T_LB_CR_NOLAYER 16
		75	u8 layer_b_time_interleave;
		76	#define ISDB_T_LB_TI_0 0
		77	#define ISDB_T_LB_TI_1 1
		78	#define ISDB_T_LB_TI_2 2
		79	#define ISDB_T_LB_TI_4 4
		80	#define ISDB_T_LB_TI_8 8
		81	#define ISDB_T_LB_TI_16 16
		82	#define ISDB_T_LB_TI_32 32
		83	u8 layer_b_nseg;
		84
		85	u8 layer_c_mode;
		86	#define ISDB_T_LC_MODE_1 0
		87	#define ISDB_T_LC_MODE_2 1
		88	#define ISDB_T_LC_MODE_3 2
		89	u8 layer_c_carrier_modulation;
		90	#define ISDB_T_LC_CM_DQPSK 0
		91	#define ISDB_T_LC_CM_QPSK 1
		92	#define ISDB_T_LC_CM_16QAM 2
		93	#define ISDB_T_LC_CM_64QAM 3
		94	#define ISDB_T_LC_CM_NOLAYER 4
		95	u8 layer_c_code_rate;
		96	#define ISDB_T_LC_CR_1_2 0
		97	#define ISDB_T_LC_CR_2_3 1
		98	#define ISDB_T_LC_CR_3_4 2
		99	#define ISDB_T_LC_CR_5_6 4
		100	#define ISDB_T_LC_CR_7_8 8
		101	#define ISDB_T_LC_CR_NOLAYER 16
		102	u8 layer_c_time_interleave;
		103	#define ISDB_T_LC_TI_0 0
		104	#define ISDB_T_LC_TI_1 1
		105	#define ISDB_T_LC_TI_2 2
		106	#define ISDB_T_LC_TI_4 4
		107	#define ISDB_T_LC_TI_8 8
		108	#define ISDB_T_LC_TI_16 16
		109	#define ISDB_T_LC_TI_32 32
		110	u8 layer_c_nseg;
		111	};
		112
		113	int s921_isdb_cmd(struct s921_isdb_t dev, u32 cmd, void data);
		114	#endif


diff --git a/drivers/media/dvb/frontends/s921_module.c b/drivers/media/dvb/frontends/s921_module.c new file mode 100644 index 000000000000..3cbb9cb2cf47 --- /dev/null +++ b/drivers/media/dvb/frontends/s921_module.c
@@ -0,0 +1,190 @@
		1	/*
		2	* Driver for Sharp s921 driver
		3	*
		4	* Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
		5	*
		6	* All rights reserved.
		7	*
		8	*/
		9
		10	#include <linux/kernel.h>
		11	#include <linux/module.h>
		12	#include <linux/delay.h>
		13	#include "dvb_frontend.h"
		14	#include "s921_module.h"
		15	#include "s921_core.h"
		16
		17	static unsigned int debug = 0;
		18	module_param(debug, int, 0644);
		19	MODULE_PARM_DESC(debug,"s921 debugging (default off)");
		20
		21	#define dprintk(fmt, args...) if (debug) do {\
		22	printk("s921 debug: " fmt, ##args); } while (0)
		23
		24	struct s921_state
		25	{
		26	struct dvb_frontend frontend;
		27	fe_modulation_t current_modulation;
		28	__u32 snr;
		29	__u32 current_frequency;
		30	__u8 addr;
		31	struct s921_isdb_t dev;
		32	struct i2c_adapter *i2c;
		33	};
		34
		35	static int s921_set_parameters(struct dvb_frontend fe, struct dvb_frontend_parameters param) {
		36	struct s921_state state = (struct s921_state )fe->demodulator_priv;
		37	struct s921_isdb_t_transmission_mode_params params;
		38	struct s921_isdb_t_tune_params tune_params;
		39
		40	tune_params.frequency = param->frequency;
		41	s921_isdb_cmd(&state->dev, ISDB_T_CMD_SET_PARAM, &params);
		42	s921_isdb_cmd(&state->dev, ISDB_T_CMD_TUNE, &tune_params);
		43	mdelay(100);
		44	return 0;
		45	}
		46
		47	static int s921_init(struct dvb_frontend *fe) {
		48	printk("s921 init\n");
		49	return 0;
		50	}
		51
		52	static int s921_sleep(struct dvb_frontend *fe) {
		53	printk("s921 sleep\n");
		54	return 0;
		55	}
		56
		57	static int s921_read_status(struct dvb_frontend fe, fe_status_t status)
		58	{
		59	struct s921_state state = (struct s921_state )fe->demodulator_priv;
		60	unsigned int ret;
		61	mdelay(5);
		62	s921_isdb_cmd(&state->dev, ISDB_T_CMD_GET_STATUS, &ret);
		63	*status = 0;
		64
		65	printk("status: %02x\n", ret);
		66	if (ret == 1) {
		67	*status \|= FE_HAS_CARRIER;
		68	*status \|= FE_HAS_VITERBI;
		69	*status \|= FE_HAS_LOCK;
		70	*status \|= FE_HAS_SYNC;
		71	*status \|= FE_HAS_SIGNAL;
		72	}
		73
		74	return 0;
		75	}
		76
		77	static int s921_read_ber(struct dvb_frontend fe, __u32 ber)
		78	{
		79	dprintk("read ber\n");
		80	return 0;
		81	}
		82
		83	static int s921_read_snr(struct dvb_frontend fe, __u16 snr)
		84	{
		85	dprintk("read snr\n");
		86	return 0;
		87	}
		88
		89	static int s921_read_ucblocks(struct dvb_frontend fe, __u32 ucblocks)
		90	{
		91	dprintk("read ucblocks\n");
		92	return 0;
		93	}
		94
		95	static void s921_release(struct dvb_frontend *fe)
		96	{
		97	struct s921_state state = (struct s921_state )fe->demodulator_priv;
		98	kfree(state);
		99	}
		100
		101	static struct dvb_frontend_ops demod_s921={
		102	.info = {
		103	.name = "SHARP S921",
		104	.type = FE_OFDM,
		105	.frequency_min = 473143000,
		106	.frequency_max = 767143000,
		107	.frequency_stepsize = 6000000,
		108	.frequency_tolerance = 0,
		109	.caps = FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \|
		110	FE_CAN_FEC_3_4 \| FE_CAN_FEC_5_6 \| FE_CAN_FEC_7_8 \|
		111	FE_CAN_FEC_AUTO \|
		112	FE_CAN_QPSK \| FE_CAN_QAM_16 \| FE_CAN_QAM_64 \| FE_CAN_QAM_AUTO \|
		113	FE_CAN_TRANSMISSION_MODE_AUTO \| FE_CAN_GUARD_INTERVAL_AUTO \|
		114	FE_CAN_HIERARCHY_AUTO \| FE_CAN_RECOVER \|
		115	FE_CAN_MUTE_TS
		116	},
		117	.init = s921_init,
		118	.sleep = s921_sleep,
		119	.set_frontend = s921_set_parameters,
		120	.read_snr = s921_read_snr,
		121	.read_ber = s921_read_ber,
		122	.read_status = s921_read_status,
		123	.read_ucblocks = s921_read_ucblocks,
		124	.release = s921_release,
		125	};
		126
		127	static int s921_write(void *dev, u8 reg, u8 val) {
		128	struct s921_state *state = dev;
		129	char buf[2]={reg,val};
		130	int err;
		131	struct i2c_msg i2cmsgs = {
		132	.addr = state->addr,
		133	.flags = 0,
		134	.len = 2,
		135	.buf = buf
		136	};
		137
		138	if((err = i2c_transfer(state->i2c, &i2cmsgs, 1))<0) {
		139	printk("%s i2c_transfer error %d\n", __FUNCTION__, err);
		140	if (err < 0)
		141	return err;
		142	else
		143	return -EREMOTEIO;
		144	}
		145
		146	return 0;
		147	}
		148
		149	static int s921_read(void *dev, u8 reg) {
		150	struct s921_state *state = dev;
		151	u8 b1;
		152	int ret;
		153	struct i2c_msg msg[2] = { { .addr = state->addr,
		154	.flags = 0,
		155	.buf = &reg, .len = 1 },
		156	{ .addr = state->addr,
		157	.flags = I2C_M_RD,
		158	.buf = &b1, .len = 1 } };
		159
		160	ret = i2c_transfer(state->i2c, msg, 2);
		161	if (ret != 2)
		162	return ret;
		163	return b1;
		164	}
		165
		166	struct dvb_frontend* s921_attach(const struct s921_config *config,
		167	struct i2c_adapter *i2c)
		168	{
		169
		170	struct s921_state *state;
		171	state = kzalloc(sizeof(struct s921_state), GFP_KERNEL);
		172	memset(state, 0x0, sizeof(struct s921_state));
		173
		174	state->addr = config->i2c_address;
		175	state->i2c = i2c;
		176	state->dev.i2c_write = &s921_write;
		177	state->dev.i2c_read = &s921_read;
		178	state->dev.priv_dev = state;
		179
		180	s921_isdb_cmd(&state->dev, ISDB_T_CMD_INIT, NULL);
		181
		182	memcpy(&state->frontend.ops, &demod_s921, sizeof(struct dvb_frontend_ops));
		183	state->frontend.demodulator_priv = state;
		184	return &state->frontend;
		185	}
		186
		187	EXPORT_SYMBOL_GPL(s921_attach);
		188	MODULE_AUTHOR("Markus Rechberger <mrechberger@empiatech.com>");
		189	MODULE_DESCRIPTION("Sharp S921 ISDB-T 1Seg");
		190	MODULE_LICENSE("GPL");


diff --git a/drivers/media/dvb/frontends/s921_module.h b/drivers/media/dvb/frontends/s921_module.h new file mode 100644 index 000000000000..78660424ba95 --- /dev/null +++ b/drivers/media/dvb/frontends/s921_module.h
@@ -0,0 +1,49 @@
		1	/*
		2	* Driver for DVB-T s921 demodulator
		3	*
		4	* Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
		5	*
		6	* This program is free software; you can redistribute it and/or modify
		7	* it under the terms of the GNU General Public License as published by
		8	* the Free Software Foundation; either version 2 of the License, or
		9	* (at your option) any later version.
		10	*
		11	* This program is distributed in the hope that it will be useful,
		12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	*
		15	* GNU General Public License for more details.
		16	*
		17	* You should have received a copy of the GNU General Public License
		18	* along with this program; if not, write to the Free Software
		19	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.=
		20	*/
		21
		22	#ifndef S921_MODULE_H
		23	#define S921_MODULE_H
		24
		25	#include <linux/dvb/frontend.h>
		26	#include "s921_core.h"
		27
		28	int s921_isdb_init(struct s921_isdb_t *dev);
		29	int s921_isdb_cmd(struct s921_isdb_t dev, u32 cmd, void data);
		30
		31	struct s921_config
		32	{
		33	/* demodulator's I2C address */
		34	u8 i2c_address;
		35	};
		36
		37	#if defined(CONFIG_DVB_S921) \|\| (defined(CONFIG_DVB_S921_MODULE) && defined(MODULE))
		38	extern struct dvb_frontend* s921_attach(const struct s921_config *config,
		39	struct i2c_adapter *i2c);
		40	#else
		41	static inline struct dvb_frontend* s921_attach(const struct s921_config *config,
		42	struct i2c_adapter *i2c)
		43	{
		44	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
		45	return NULL;
		46	}
		47	#endif /* CONFIG_DVB_S921 */
		48
		49	#endif /* S921_H */