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authorAntti Palosaari <crope@iki.fi>2014-11-12 03:01:44 (GMT)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-11-14 19:22:34 (GMT)
commitc867b265b15c2703fe07adcce064a2e3ba77ed13 (patch)
tree9e182ae990e01bb0b90e9dc237e0ef2971352c2d /drivers/staging/media
parent5048907076ea8b31aa15a3ec7a6ce9c341eb77ce (diff)
[media] mn88472: move to staging
It is not ready enough to be released on mainline. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/staging/media')
-rw-r--r--drivers/staging/media/Kconfig2
-rw-r--r--drivers/staging/media/Makefile1
-rw-r--r--drivers/staging/media/mn88472/Kconfig7
-rw-r--r--drivers/staging/media/mn88472/Makefile5
-rw-r--r--drivers/staging/media/mn88472/mn88472.c523
-rw-r--r--drivers/staging/media/mn88472/mn88472_priv.h36
6 files changed, 574 insertions, 0 deletions
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig
index 655cf50..c2e675a 100644
--- a/drivers/staging/media/Kconfig
+++ b/drivers/staging/media/Kconfig
@@ -27,6 +27,8 @@ source "drivers/staging/media/davinci_vpfe/Kconfig"
source "drivers/staging/media/dt3155v4l/Kconfig"
+source "drivers/staging/media/mn88472/Kconfig"
+
source "drivers/staging/media/omap24xx/Kconfig"
source "drivers/staging/media/omap4iss/Kconfig"
diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile
index 6dbe578..e174c57 100644
--- a/drivers/staging/media/Makefile
+++ b/drivers/staging/media/Makefile
@@ -6,4 +6,5 @@ obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/
obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/
obj-$(CONFIG_VIDEO_OMAP2) += omap24xx/
obj-$(CONFIG_VIDEO_TCM825X) += omap24xx/
+obj-$(CONFIG_DVB_MN88472) += mn88472/
diff --git a/drivers/staging/media/mn88472/Kconfig b/drivers/staging/media/mn88472/Kconfig
new file mode 100644
index 0000000..a85c90a
--- /dev/null
+++ b/drivers/staging/media/mn88472/Kconfig
@@ -0,0 +1,7 @@
+config DVB_MN88472
+ tristate "Panasonic MN88472"
+ depends on DVB_CORE && I2C
+ select REGMAP_I2C
+ default m if !MEDIA_SUBDRV_AUTOSELECT
+ help
+ Say Y when you want to support this frontend.
diff --git a/drivers/staging/media/mn88472/Makefile b/drivers/staging/media/mn88472/Makefile
new file mode 100644
index 0000000..5987b7e
--- /dev/null
+++ b/drivers/staging/media/mn88472/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_DVB_MN88472) += mn88472.o
+
+ccflags-y += -Idrivers/media/dvb-core/
+ccflags-y += -Idrivers/media/dvb-frontends/
+ccflags-y += -Idrivers/media/tuners/
diff --git a/drivers/staging/media/mn88472/mn88472.c b/drivers/staging/media/mn88472/mn88472.c
new file mode 100644
index 0000000..52de8f8
--- /dev/null
+++ b/drivers/staging/media/mn88472/mn88472.c
@@ -0,0 +1,523 @@
+/*
+ * Panasonic MN88472 DVB-T/T2/C demodulator driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ *
+ * 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.
+ */
+
+#include "mn88472_priv.h"
+
+static int mn88472_get_tune_settings(struct dvb_frontend *fe,
+ struct dvb_frontend_tune_settings *s)
+{
+ s->min_delay_ms = 400;
+ return 0;
+}
+
+static int mn88472_set_frontend(struct dvb_frontend *fe)
+{
+ struct i2c_client *client = fe->demodulator_priv;
+ struct mn88472_dev *dev = i2c_get_clientdata(client);
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int ret, i;
+ u32 if_frequency = 0;
+ u8 delivery_system_val, if_val[3], bw_val[7], bw_val2;
+
+ dev_dbg(&client->dev,
+ "delivery_system=%d modulation=%d frequency=%d symbol_rate=%d inversion=%d\n",
+ c->delivery_system, c->modulation,
+ c->frequency, c->symbol_rate, c->inversion);
+
+ if (!dev->warm) {
+ ret = -EAGAIN;
+ goto err;
+ }
+
+ switch (c->delivery_system) {
+ case SYS_DVBT:
+ delivery_system_val = 0x02;
+ break;
+ case SYS_DVBT2:
+ delivery_system_val = 0x03;
+ break;
+ case SYS_DVBC_ANNEX_A:
+ delivery_system_val = 0x04;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err;
+ }
+
+ switch (c->delivery_system) {
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ if (c->bandwidth_hz <= 6000000) {
+ /* IF 3570000 Hz, BW 6000000 Hz */
+ memcpy(if_val, "\x2c\x94\xdb", 3);
+ memcpy(bw_val, "\xbf\x55\x55\x15\x6b\x15\x6b", 7);
+ bw_val2 = 0x02;
+ } else if (c->bandwidth_hz <= 7000000) {
+ /* IF 4570000 Hz, BW 7000000 Hz */
+ memcpy(if_val, "\x39\x11\xbc", 3);
+ memcpy(bw_val, "\xa4\x00\x00\x0f\x2c\x0f\x2c", 7);
+ bw_val2 = 0x01;
+ } else if (c->bandwidth_hz <= 8000000) {
+ /* IF 4570000 Hz, BW 8000000 Hz */
+ memcpy(if_val, "\x39\x11\xbc", 3);
+ memcpy(bw_val, "\x8f\x80\x00\x08\xee\x08\xee", 7);
+ bw_val2 = 0x00;
+ } else {
+ ret = -EINVAL;
+ goto err;
+ }
+ break;
+ case SYS_DVBC_ANNEX_A:
+ /* IF 5070000 Hz, BW 8000000 Hz */
+ memcpy(if_val, "\x3f\x50\x2c", 3);
+ memcpy(bw_val, "\x8f\x80\x00\x08\xee\x08\xee", 7);
+ bw_val2 = 0x00;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err;
+ }
+
+ /* program tuner */
+ if (fe->ops.tuner_ops.set_params) {
+ ret = fe->ops.tuner_ops.set_params(fe);
+ if (ret)
+ goto err;
+ }
+
+ if (fe->ops.tuner_ops.get_if_frequency) {
+ ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
+ if (ret)
+ goto err;
+
+ dev_dbg(&client->dev, "get_if_frequency=%d\n", if_frequency);
+ }
+
+ switch (if_frequency) {
+ case 3570000:
+ case 4570000:
+ case 5070000:
+ break;
+ default:
+ dev_err(&client->dev, "IF frequency %d not supported\n",
+ if_frequency);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = regmap_write(dev->regmap[2], 0xfb, 0x13);
+ ret = regmap_write(dev->regmap[2], 0xef, 0x13);
+ ret = regmap_write(dev->regmap[2], 0xf9, 0x13);
+ if (ret)
+ goto err;
+
+ ret = regmap_write(dev->regmap[2], 0x00, 0x66);
+ if (ret)
+ goto err;
+ ret = regmap_write(dev->regmap[2], 0x01, 0x00);
+ if (ret)
+ goto err;
+ ret = regmap_write(dev->regmap[2], 0x02, 0x01);
+ if (ret)
+ goto err;
+ ret = regmap_write(dev->regmap[2], 0x03, delivery_system_val);
+ if (ret)
+ goto err;
+ ret = regmap_write(dev->regmap[2], 0x04, bw_val2);
+ if (ret)
+ goto err;
+
+ for (i = 0; i < sizeof(if_val); i++) {
+ ret = regmap_write(dev->regmap[2], 0x10 + i, if_val[i]);
+ if (ret)
+ goto err;
+ }
+
+ for (i = 0; i < sizeof(bw_val); i++) {
+ ret = regmap_write(dev->regmap[2], 0x13 + i, bw_val[i]);
+ if (ret)
+ goto err;
+ }
+
+ switch (c->delivery_system) {
+ case SYS_DVBT:
+ ret = regmap_write(dev->regmap[0], 0x07, 0x26);
+ ret = regmap_write(dev->regmap[0], 0xb0, 0x0a);
+ ret = regmap_write(dev->regmap[0], 0xb4, 0x00);
+ ret = regmap_write(dev->regmap[0], 0xcd, 0x1f);
+ ret = regmap_write(dev->regmap[0], 0xd4, 0x0a);
+ ret = regmap_write(dev->regmap[0], 0xd6, 0x48);
+ ret = regmap_write(dev->regmap[0], 0x00, 0xba);
+ ret = regmap_write(dev->regmap[0], 0x01, 0x13);
+ if (ret)
+ goto err;
+ break;
+ case SYS_DVBT2:
+ ret = regmap_write(dev->regmap[2], 0x2b, 0x13);
+ ret = regmap_write(dev->regmap[2], 0x4f, 0x05);
+ ret = regmap_write(dev->regmap[1], 0xf6, 0x05);
+ ret = regmap_write(dev->regmap[0], 0xb0, 0x0a);
+ ret = regmap_write(dev->regmap[0], 0xb4, 0xf6);
+ ret = regmap_write(dev->regmap[0], 0xcd, 0x01);
+ ret = regmap_write(dev->regmap[0], 0xd4, 0x09);
+ ret = regmap_write(dev->regmap[0], 0xd6, 0x46);
+ ret = regmap_write(dev->regmap[2], 0x30, 0x80);
+ ret = regmap_write(dev->regmap[2], 0x32, 0x00);
+ if (ret)
+ goto err;
+ break;
+ case SYS_DVBC_ANNEX_A:
+ ret = regmap_write(dev->regmap[0], 0xb0, 0x0b);
+ ret = regmap_write(dev->regmap[0], 0xb4, 0x00);
+ ret = regmap_write(dev->regmap[0], 0xcd, 0x17);
+ ret = regmap_write(dev->regmap[0], 0xd4, 0x09);
+ ret = regmap_write(dev->regmap[0], 0xd6, 0x48);
+ ret = regmap_write(dev->regmap[1], 0x00, 0xb0);
+ if (ret)
+ goto err;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = regmap_write(dev->regmap[0], 0x46, 0x00);
+ ret = regmap_write(dev->regmap[0], 0xae, 0x00);
+ ret = regmap_write(dev->regmap[2], 0x08, 0x1d);
+ ret = regmap_write(dev->regmap[0], 0xd9, 0xe3);
+ ret = regmap_write(dev->regmap[2], 0xf8, 0x9f);
+ if (ret)
+ goto err;
+
+ dev->delivery_system = c->delivery_system;
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int mn88472_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+ struct i2c_client *client = fe->demodulator_priv;
+ struct mn88472_dev *dev = i2c_get_clientdata(client);
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int ret;
+ unsigned int utmp;
+
+ *status = 0;
+
+ if (!dev->warm) {
+ ret = -EAGAIN;
+ goto err;
+ }
+
+ switch (c->delivery_system) {
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ /* FIXME: implement me */
+ utmp = 0x08; /* DVB-C lock value */
+ break;
+ case SYS_DVBC_ANNEX_A:
+ ret = regmap_read(dev->regmap[1], 0x84, &utmp);
+ if (ret)
+ goto err;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (utmp == 0x08)
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
+ FE_HAS_SYNC | FE_HAS_LOCK;
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int mn88472_init(struct dvb_frontend *fe)
+{
+ struct i2c_client *client = fe->demodulator_priv;
+ struct mn88472_dev *dev = i2c_get_clientdata(client);
+ int ret, len, remaining;
+ const struct firmware *fw = NULL;
+ u8 *fw_file = MN88472_FIRMWARE;
+
+ dev_dbg(&client->dev, "\n");
+
+ /* set cold state by default */
+ dev->warm = false;
+
+ /* power on */
+ ret = regmap_write(dev->regmap[2], 0x05, 0x00);
+ if (ret)
+ goto err;
+
+ ret = regmap_bulk_write(dev->regmap[2], 0x0b, "\x00\x00", 2);
+ if (ret)
+ goto err;
+
+ /* request the firmware, this will block and timeout */
+ ret = request_firmware(&fw, fw_file, &client->dev);
+ if (ret) {
+ dev_err(&client->dev, "firmare file '%s' not found\n",
+ fw_file);
+ goto err;
+ }
+
+ dev_info(&client->dev, "downloading firmware from file '%s'\n",
+ fw_file);
+
+ ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
+ if (ret)
+ goto err;
+
+ for (remaining = fw->size; remaining > 0;
+ remaining -= (dev->i2c_wr_max - 1)) {
+ len = remaining;
+ if (len > (dev->i2c_wr_max - 1))
+ len = (dev->i2c_wr_max - 1);
+
+ ret = regmap_bulk_write(dev->regmap[0], 0xf6,
+ &fw->data[fw->size - remaining], len);
+ if (ret) {
+ dev_err(&client->dev,
+ "firmware download failed=%d\n", ret);
+ goto err;
+ }
+ }
+
+ ret = regmap_write(dev->regmap[0], 0xf5, 0x00);
+ if (ret)
+ goto err;
+
+ release_firmware(fw);
+ fw = NULL;
+
+ /* warm state */
+ dev->warm = true;
+
+ return 0;
+err:
+ if (fw)
+ release_firmware(fw);
+
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int mn88472_sleep(struct dvb_frontend *fe)
+{
+ struct i2c_client *client = fe->demodulator_priv;
+ struct mn88472_dev *dev = i2c_get_clientdata(client);
+ int ret;
+
+ dev_dbg(&client->dev, "\n");
+
+ /* power off */
+ ret = regmap_write(dev->regmap[2], 0x0b, 0x30);
+
+ if (ret)
+ goto err;
+
+ ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
+ if (ret)
+ goto err;
+
+ dev->delivery_system = SYS_UNDEFINED;
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static struct dvb_frontend_ops mn88472_ops = {
+ .delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A},
+ .info = {
+ .name = "Panasonic MN88472",
+ .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_32 |
+ FE_CAN_QAM_64 |
+ FE_CAN_QAM_128 |
+ FE_CAN_QAM_256 |
+ FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_HIERARCHY_AUTO |
+ FE_CAN_MUTE_TS |
+ FE_CAN_2G_MODULATION |
+ FE_CAN_MULTISTREAM
+ },
+
+ .get_tune_settings = mn88472_get_tune_settings,
+
+ .init = mn88472_init,
+ .sleep = mn88472_sleep,
+
+ .set_frontend = mn88472_set_frontend,
+
+ .read_status = mn88472_read_status,
+};
+
+static int mn88472_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct mn88472_config *config = client->dev.platform_data;
+ struct mn88472_dev *dev;
+ int ret;
+ unsigned int utmp;
+ static const struct regmap_config regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ };
+
+ dev_dbg(&client->dev, "\n");
+
+ /* Caller really need to provide pointer for frontend we create. */
+ if (config->fe == NULL) {
+ dev_err(&client->dev, "frontend pointer not defined\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->i2c_wr_max = config->i2c_wr_max;
+ dev->client[0] = client;
+ dev->regmap[0] = regmap_init_i2c(dev->client[0], &regmap_config);
+ if (IS_ERR(dev->regmap[0])) {
+ ret = PTR_ERR(dev->regmap[0]);
+ goto err_kfree;
+ }
+
+ /* check demod answers to I2C */
+ ret = regmap_read(dev->regmap[0], 0x00, &utmp);
+ if (ret)
+ goto err_regmap_0_regmap_exit;
+
+ /*
+ * Chip has three I2C addresses for different register pages. Used
+ * addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
+ * 0x1a and 0x1c, in order to get own I2C client for each register page.
+ */
+ dev->client[1] = i2c_new_dummy(client->adapter, 0x1a);
+ if (dev->client[1] == NULL) {
+ ret = -ENODEV;
+ dev_err(&client->dev, "I2C registration failed\n");
+ if (ret)
+ goto err_regmap_0_regmap_exit;
+ }
+ dev->regmap[1] = regmap_init_i2c(dev->client[1], &regmap_config);
+ if (IS_ERR(dev->regmap[1])) {
+ ret = PTR_ERR(dev->regmap[1]);
+ goto err_client_1_i2c_unregister_device;
+ }
+ i2c_set_clientdata(dev->client[1], dev);
+
+ dev->client[2] = i2c_new_dummy(client->adapter, 0x1c);
+ if (dev->client[2] == NULL) {
+ ret = -ENODEV;
+ dev_err(&client->dev, "2nd I2C registration failed\n");
+ if (ret)
+ goto err_regmap_1_regmap_exit;
+ }
+ dev->regmap[2] = regmap_init_i2c(dev->client[2], &regmap_config);
+ if (IS_ERR(dev->regmap[2])) {
+ ret = PTR_ERR(dev->regmap[2]);
+ goto err_client_2_i2c_unregister_device;
+ }
+ i2c_set_clientdata(dev->client[2], dev);
+
+ /* create dvb_frontend */
+ memcpy(&dev->fe.ops, &mn88472_ops, sizeof(struct dvb_frontend_ops));
+ dev->fe.demodulator_priv = client;
+ *config->fe = &dev->fe;
+ i2c_set_clientdata(client, dev);
+
+ dev_info(&client->dev, "Panasonic MN88472 successfully attached\n");
+ return 0;
+
+err_client_2_i2c_unregister_device:
+ i2c_unregister_device(dev->client[2]);
+err_regmap_1_regmap_exit:
+ regmap_exit(dev->regmap[1]);
+err_client_1_i2c_unregister_device:
+ i2c_unregister_device(dev->client[1]);
+err_regmap_0_regmap_exit:
+ regmap_exit(dev->regmap[0]);
+err_kfree:
+ kfree(dev);
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int mn88472_remove(struct i2c_client *client)
+{
+ struct mn88472_dev *dev = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+ regmap_exit(dev->regmap[2]);
+ i2c_unregister_device(dev->client[2]);
+
+ regmap_exit(dev->regmap[1]);
+ i2c_unregister_device(dev->client[1]);
+
+ regmap_exit(dev->regmap[0]);
+
+ kfree(dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id mn88472_id_table[] = {
+ {"mn88472", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, mn88472_id_table);
+
+static struct i2c_driver mn88472_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "mn88472",
+ },
+ .probe = mn88472_probe,
+ .remove = mn88472_remove,
+ .id_table = mn88472_id_table,
+};
+
+module_i2c_driver(mn88472_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Panasonic MN88472 DVB-T/T2/C demodulator driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(MN88472_FIRMWARE);
diff --git a/drivers/staging/media/mn88472/mn88472_priv.h b/drivers/staging/media/mn88472/mn88472_priv.h
new file mode 100644
index 0000000..1095949
--- /dev/null
+++ b/drivers/staging/media/mn88472/mn88472_priv.h
@@ -0,0 +1,36 @@
+/*
+ * Panasonic MN88472 DVB-T/T2/C demodulator driver
+ *
+ * Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
+ *
+ * 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.
+ */
+
+#ifndef MN88472_PRIV_H
+#define MN88472_PRIV_H
+
+#include "dvb_frontend.h"
+#include "mn88472.h"
+#include <linux/firmware.h>
+#include <linux/regmap.h>
+
+#define MN88472_FIRMWARE "dvb-demod-mn88472-02.fw"
+
+struct mn88472_dev {
+ struct i2c_client *client[3];
+ struct regmap *regmap[3];
+ struct dvb_frontend fe;
+ u16 i2c_wr_max;
+ fe_delivery_system_t delivery_system;
+ bool warm; /* FW running */
+};
+
+#endif

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