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path: root/drivers/media/usb/dvb-usb-v2/dvbsky.c
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Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/dvbsky.c')
-rw-r--r--drivers/media/usb/dvb-usb-v2/dvbsky.c460
1 files changed, 460 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/dvbsky.c b/drivers/media/usb/dvb-usb-v2/dvbsky.c
new file mode 100644
index 0000000..34688c8
--- /dev/null
+++ b/drivers/media/usb/dvb-usb-v2/dvbsky.c
@@ -0,0 +1,460 @@
+/*
+ * Driver for DVBSky USB2.0 receiver
+ *
+ * Copyright (C) 2013 Max nibble <nibble.max@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 "dvb_usb.h"
+#include "m88ds3103.h"
+#include "m88ts2022.h"
+
+#define DVBSKY_MSG_DELAY 0/*2000*/
+#define DVBSKY_BUF_LEN 64
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+struct dvbsky_state {
+ struct mutex stream_mutex;
+ u8 ibuf[DVBSKY_BUF_LEN];
+ u8 obuf[DVBSKY_BUF_LEN];
+ u8 last_lock;
+ struct i2c_client *i2c_client_tuner;
+
+ /* fe hook functions*/
+ int (*fe_set_voltage)(struct dvb_frontend *fe,
+ fe_sec_voltage_t voltage);
+ int (*fe_read_status)(struct dvb_frontend *fe,
+ fe_status_t *status);
+};
+
+static int dvbsky_usb_generic_rw(struct dvb_usb_device *d,
+ u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+ int ret;
+ struct dvbsky_state *state = d_to_priv(d);
+
+ mutex_lock(&d->usb_mutex);
+ if (wlen != 0)
+ memcpy(state->obuf, wbuf, wlen);
+
+ ret = dvb_usbv2_generic_rw_locked(d, state->obuf, wlen,
+ state->ibuf, rlen);
+
+ if (!ret && (rlen != 0))
+ memcpy(rbuf, state->ibuf, rlen);
+
+ mutex_unlock(&d->usb_mutex);
+ return ret;
+}
+
+static int dvbsky_stream_ctrl(struct dvb_usb_device *d, u8 onoff)
+{
+ struct dvbsky_state *state = d_to_priv(d);
+ int ret;
+ u8 obuf_pre[3] = { 0x37, 0, 0 };
+ u8 obuf_post[3] = { 0x36, 3, 0 };
+
+ mutex_lock(&state->stream_mutex);
+ ret = dvbsky_usb_generic_rw(d, obuf_pre, 3, NULL, 0);
+ if (!ret && onoff) {
+ msleep(20);
+ ret = dvbsky_usb_generic_rw(d, obuf_post, 3, NULL, 0);
+ }
+ mutex_unlock(&state->stream_mutex);
+ return ret;
+}
+
+static int dvbsky_streaming_ctrl(struct dvb_frontend *fe, int onoff)
+{
+ struct dvb_usb_device *d = fe_to_d(fe);
+
+ return dvbsky_stream_ctrl(d, (onoff == 0) ? 0 : 1);
+}
+
+/* GPIO */
+static int dvbsky_gpio_ctrl(struct dvb_usb_device *d, u8 gport, u8 value)
+{
+ int ret;
+ u8 obuf[3], ibuf[2];
+
+ obuf[0] = 0x0e;
+ obuf[1] = gport;
+ obuf[2] = value;
+ ret = dvbsky_usb_generic_rw(d, obuf, 3, ibuf, 1);
+ if (ret)
+ dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+ KBUILD_MODNAME, __func__, ret);
+ return ret;
+}
+
+/* I2C */
+static int dvbsky_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+ int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ int ret = 0;
+ u8 ibuf[64], obuf[64];
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ if (num > 2) {
+ dev_err(&d->udev->dev,
+ "dvbsky_usb: too many i2c messages[%d] than 2.", num);
+ ret = -EOPNOTSUPP;
+ goto i2c_error;
+ }
+
+ if (num == 1) {
+ if (msg[0].len > 60) {
+ dev_err(&d->udev->dev,
+ "dvbsky_usb: too many i2c bytes[%d] than 60.",
+ msg[0].len);
+ ret = -EOPNOTSUPP;
+ goto i2c_error;
+ }
+ if (msg[0].flags & I2C_M_RD) {
+ /* single read */
+ obuf[0] = 0x09;
+ obuf[1] = 0;
+ obuf[2] = msg[0].len;
+ obuf[3] = msg[0].addr;
+ ret = dvbsky_usb_generic_rw(d, obuf, 4,
+ ibuf, msg[0].len + 1);
+ if (ret)
+ dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+ KBUILD_MODNAME, __func__, ret);
+ if (!ret)
+ memcpy(msg[0].buf, &ibuf[1], msg[0].len);
+ } else {
+ /* write */
+ obuf[0] = 0x08;
+ obuf[1] = msg[0].addr;
+ obuf[2] = msg[0].len;
+ memcpy(&obuf[3], msg[0].buf, msg[0].len);
+ ret = dvbsky_usb_generic_rw(d, obuf,
+ msg[0].len + 3, ibuf, 1);
+ if (ret)
+ dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+ KBUILD_MODNAME, __func__, ret);
+ }
+ } else {
+ if ((msg[0].len > 60) || (msg[1].len > 60)) {
+ dev_err(&d->udev->dev,
+ "dvbsky_usb: too many i2c bytes[w-%d][r-%d] than 60.",
+ msg[0].len, msg[1].len);
+ ret = -EOPNOTSUPP;
+ goto i2c_error;
+ }
+ /* write then read */
+ obuf[0] = 0x09;
+ obuf[1] = msg[0].len;
+ obuf[2] = msg[1].len;
+ obuf[3] = msg[0].addr;
+ memcpy(&obuf[4], msg[0].buf, msg[0].len);
+ ret = dvbsky_usb_generic_rw(d, obuf,
+ msg[0].len + 4, ibuf, msg[1].len + 1);
+ if (ret)
+ dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+ KBUILD_MODNAME, __func__, ret);
+
+ if (!ret)
+ memcpy(msg[1].buf, &ibuf[1], msg[1].len);
+ }
+i2c_error:
+ mutex_unlock(&d->i2c_mutex);
+ return (ret) ? ret : num;
+}
+
+static u32 dvbsky_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm dvbsky_i2c_algo = {
+ .master_xfer = dvbsky_i2c_xfer,
+ .functionality = dvbsky_i2c_func,
+};
+
+#if IS_ENABLED(CONFIG_RC_CORE)
+static int dvbsky_rc_query(struct dvb_usb_device *d)
+{
+ u32 code = 0xffff, scancode;
+ u8 rc5_command, rc5_system;
+ u8 obuf[2], ibuf[2], toggle;
+ int ret;
+
+ obuf[0] = 0x10;
+ ret = dvbsky_usb_generic_rw(d, obuf, 1, ibuf, 2);
+ if (ret)
+ dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+ KBUILD_MODNAME, __func__, ret);
+ if (ret == 0)
+ code = (ibuf[0] << 8) | ibuf[1];
+ if (code != 0xffff) {
+ dev_dbg(&d->udev->dev, "rc code: %x\n", code);
+ rc5_command = code & 0x3F;
+ rc5_system = (code & 0x7C0) >> 6;
+ toggle = (code & 0x800) ? 1 : 0;
+ scancode = rc5_system << 8 | rc5_command;
+ rc_keydown(d->rc_dev, RC_TYPE_RC5, scancode, toggle);
+ }
+ return 0;
+}
+
+static int dvbsky_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
+{
+ rc->allowed_protos = RC_BIT_RC5;
+ rc->query = dvbsky_rc_query;
+ rc->interval = 300;
+ return 0;
+}
+#else
+ #define dvbsky_get_rc_config NULL
+#endif
+
+static int dvbsky_usb_set_voltage(struct dvb_frontend *fe,
+ fe_sec_voltage_t voltage)
+{
+ struct dvb_usb_device *d = fe_to_d(fe);
+ struct dvbsky_state *state = d_to_priv(d);
+ u8 value;
+
+ if (voltage == SEC_VOLTAGE_OFF)
+ value = 0;
+ else
+ value = 1;
+ dvbsky_gpio_ctrl(d, 0x80, value);
+
+ return state->fe_set_voltage(fe, voltage);
+}
+
+static int dvbsky_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6])
+{
+ struct dvb_usb_device *d = adap_to_d(adap);
+ u8 obuf[] = { 0x1e, 0x00 };
+ u8 ibuf[6] = { 0 };
+ struct i2c_msg msg[] = {
+ {
+ .addr = 0x51,
+ .flags = 0,
+ .buf = obuf,
+ .len = 2,
+ }, {
+ .addr = 0x51,
+ .flags = I2C_M_RD,
+ .buf = ibuf,
+ .len = 6,
+ }
+ };
+
+ if (i2c_transfer(&d->i2c_adap, msg, 2) == 2)
+ memcpy(mac, ibuf, 6);
+
+ dev_info(&d->udev->dev, "dvbsky_usb MAC address=%pM\n", mac);
+
+ return 0;
+}
+
+static int dvbsky_usb_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+ struct dvb_usb_device *d = fe_to_d(fe);
+ struct dvbsky_state *state = d_to_priv(d);
+ int ret;
+
+ ret = state->fe_read_status(fe, status);
+
+ /* it need resync slave fifo when signal change from unlock to lock.*/
+ if ((*status & FE_HAS_LOCK) && (!state->last_lock))
+ dvbsky_stream_ctrl(d, 1);
+
+ state->last_lock = (*status & FE_HAS_LOCK) ? 1 : 0;
+ return ret;
+}
+
+static const struct m88ds3103_config dvbsky_s960_m88ds3103_config = {
+ .i2c_addr = 0x68,
+ .clock = 27000000,
+ .i2c_wr_max = 33,
+ .clock_out = 0,
+ .ts_mode = M88DS3103_TS_CI,
+ .ts_clk = 16000,
+ .ts_clk_pol = 0,
+ .agc = 0x99,
+ .lnb_hv_pol = 1,
+ .lnb_en_pol = 1,
+};
+
+static int dvbsky_s960_attach(struct dvb_usb_adapter *adap)
+{
+ struct dvbsky_state *state = adap_to_priv(adap);
+ struct dvb_usb_device *d = adap_to_d(adap);
+ int ret = 0;
+ /* demod I2C adapter */
+ struct i2c_adapter *i2c_adapter;
+ struct i2c_client *client;
+ struct i2c_board_info info;
+ struct m88ts2022_config m88ts2022_config = {
+ .clock = 27000000,
+ };
+ memset(&info, 0, sizeof(struct i2c_board_info));
+
+ /* attach demod */
+ adap->fe[0] = dvb_attach(m88ds3103_attach,
+ &dvbsky_s960_m88ds3103_config,
+ &d->i2c_adap,
+ &i2c_adapter);
+ if (!adap->fe[0]) {
+ dev_err(&d->udev->dev, "dvbsky_s960_attach fail.\n");
+ ret = -ENODEV;
+ goto fail_attach;
+ }
+
+ /* attach tuner */
+ m88ts2022_config.fe = adap->fe[0];
+ strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
+ info.addr = 0x60;
+ info.platform_data = &m88ts2022_config;
+ request_module("m88ts2022");
+ client = i2c_new_device(i2c_adapter, &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ dvb_frontend_detach(adap->fe[0]);
+ ret = -ENODEV;
+ goto fail_attach;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ dvb_frontend_detach(adap->fe[0]);
+ ret = -ENODEV;
+ goto fail_attach;
+ }
+
+ /* delegate signal strength measurement to tuner */
+ adap->fe[0]->ops.read_signal_strength =
+ adap->fe[0]->ops.tuner_ops.get_rf_strength;
+
+ /* hook fe: need to resync the slave fifo when signal locks. */
+ state->fe_read_status = adap->fe[0]->ops.read_status;
+ adap->fe[0]->ops.read_status = dvbsky_usb_read_status;
+
+ /* hook fe: LNB off/on is control by Cypress usb chip. */
+ state->fe_set_voltage = adap->fe[0]->ops.set_voltage;
+ adap->fe[0]->ops.set_voltage = dvbsky_usb_set_voltage;
+
+ state->i2c_client_tuner = client;
+
+fail_attach:
+ return ret;
+}
+
+static int dvbsky_identify_state(struct dvb_usb_device *d, const char **name)
+{
+ dvbsky_gpio_ctrl(d, 0x04, 1);
+ msleep(20);
+ dvbsky_gpio_ctrl(d, 0x83, 0);
+ dvbsky_gpio_ctrl(d, 0xc0, 1);
+ msleep(100);
+ dvbsky_gpio_ctrl(d, 0x83, 1);
+ dvbsky_gpio_ctrl(d, 0xc0, 0);
+ msleep(50);
+
+ return WARM;
+}
+
+static int dvbsky_init(struct dvb_usb_device *d)
+{
+ struct dvbsky_state *state = d_to_priv(d);
+
+ /* use default interface */
+ /*
+ ret = usb_set_interface(d->udev, 0, 0);
+ if (ret)
+ return ret;
+ */
+ mutex_init(&state->stream_mutex);
+
+ state->last_lock = 0;
+
+ return 0;
+}
+
+static void dvbsky_exit(struct dvb_usb_device *d)
+{
+ struct dvbsky_state *state = d_to_priv(d);
+ struct i2c_client *client;
+
+ client = state->i2c_client_tuner;
+ /* remove I2C tuner */
+ if (client) {
+ module_put(client->dev.driver->owner);
+ i2c_unregister_device(client);
+ }
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties dvbsky_s960_props = {
+ .driver_name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ .adapter_nr = adapter_nr,
+ .size_of_priv = sizeof(struct dvbsky_state),
+
+ .generic_bulk_ctrl_endpoint = 0x01,
+ .generic_bulk_ctrl_endpoint_response = 0x81,
+ .generic_bulk_ctrl_delay = DVBSKY_MSG_DELAY,
+
+ .i2c_algo = &dvbsky_i2c_algo,
+ .frontend_attach = dvbsky_s960_attach,
+ .init = dvbsky_init,
+ .get_rc_config = dvbsky_get_rc_config,
+ .streaming_ctrl = dvbsky_streaming_ctrl,
+ .identify_state = dvbsky_identify_state,
+ .exit = dvbsky_exit,
+ .read_mac_address = dvbsky_read_mac_addr,
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .stream = DVB_USB_STREAM_BULK(0x82, 8, 4096),
+ }
+ }
+};
+
+static const struct usb_device_id dvbsky_id_table[] = {
+ { DVB_USB_DEVICE(0x0572, 0x6831,
+ &dvbsky_s960_props, "DVBSky S960/S860", RC_MAP_DVBSKY) },
+ { }
+};
+MODULE_DEVICE_TABLE(usb, dvbsky_id_table);
+
+static struct usb_driver dvbsky_usb_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = dvbsky_id_table,
+ .probe = dvb_usbv2_probe,
+ .disconnect = dvb_usbv2_disconnect,
+ .suspend = dvb_usbv2_suspend,
+ .resume = dvb_usbv2_resume,
+ .reset_resume = dvb_usbv2_reset_resume,
+ .no_dynamic_id = 1,
+ .soft_unbind = 1,
+};
+
+module_usb_driver(dvbsky_usb_driver);
+
+MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
+MODULE_DESCRIPTION("Driver for DVBSky USB");
+MODULE_LICENSE("GPL");

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