summaryrefslogtreecommitdiffstats
path: root/drivers/media/usb/dvb-usb/digitv.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/usb/dvb-usb/digitv.c')
-rw-r--r--drivers/media/usb/dvb-usb/digitv.c374
1 files changed, 374 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/digitv.c b/drivers/media/usb/dvb-usb/digitv.c
new file mode 100644
index 000000000..32134be16
--- /dev/null
+++ b/drivers/media/usb/dvb-usb/digitv.c
@@ -0,0 +1,374 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0
+ * receiver
+ *
+ * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de)
+ *
+ * partly based on the SDK published by Nebula Electronics
+ *
+ * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
+ */
+#include "digitv.h"
+
+#include "mt352.h"
+#include "nxt6000.h"
+
+/* debug */
+static int dvb_usb_digitv_debug;
+module_param_named(debug,dvb_usb_digitv_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+#define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args)
+
+static int digitv_ctrl_msg(struct dvb_usb_device *d,
+ u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
+{
+ struct digitv_state *st = d->priv;
+ int ret, wo;
+
+ wo = (rbuf == NULL || rlen == 0); /* write-only */
+
+ if (wlen > 4 || rlen > 4)
+ return -EIO;
+
+ memset(st->sndbuf, 0, 7);
+ memset(st->rcvbuf, 0, 7);
+
+ st->sndbuf[0] = cmd;
+ st->sndbuf[1] = vv;
+ st->sndbuf[2] = wo ? wlen : rlen;
+
+ if (wo) {
+ memcpy(&st->sndbuf[3], wbuf, wlen);
+ ret = dvb_usb_generic_write(d, st->sndbuf, 7);
+ } else {
+ ret = dvb_usb_generic_rw(d, st->sndbuf, 7, st->rcvbuf, 7, 10);
+ memcpy(rbuf, &st->rcvbuf[3], rlen);
+ }
+ return ret;
+}
+
+/* I2C */
+static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ int i;
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ if (num > 2)
+ warn("more than 2 i2c messages at a time is not handled yet. TODO.");
+
+ for (i = 0; i < num; i++) {
+ if (msg[i].len < 1) {
+ i = -EOPNOTSUPP;
+ break;
+ }
+ /* write/read request */
+ if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+ if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0,
+ msg[i+1].buf,msg[i+1].len) < 0)
+ break;
+ i++;
+ } else
+ if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0],
+ &msg[i].buf[1],msg[i].len-1,NULL,0) < 0)
+ break;
+ }
+
+ mutex_unlock(&d->i2c_mutex);
+ return i;
+}
+
+static u32 digitv_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm digitv_i2c_algo = {
+ .master_xfer = digitv_i2c_xfer,
+ .functionality = digitv_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static int digitv_identify_state(struct usb_device *udev,
+ const struct dvb_usb_device_properties *props,
+ const struct dvb_usb_device_description **desc,
+ int *cold)
+{
+ *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
+ return 0;
+}
+
+static int digitv_mt352_demod_init(struct dvb_frontend *fe)
+{
+ static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 };
+ static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50,
+ 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00,
+ 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f,
+ 0x75, 0x32 };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2)
+ mt352_write(fe, &reset_buf[i], 2);
+
+ msleep(1);
+
+ for (i = 0; i < ARRAY_SIZE(init_buf); i += 2)
+ mt352_write(fe, &init_buf[i], 2);
+
+ return 0;
+}
+
+static struct mt352_config digitv_mt352_config = {
+ .demod_init = digitv_mt352_demod_init,
+};
+
+static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe)
+{
+ struct dvb_usb_adapter *adap = fe->dvb->priv;
+ u8 b[5];
+
+ fe->ops.tuner_ops.calc_regs(fe, b, sizeof(b));
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+ return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0);
+}
+
+static struct nxt6000_config digitv_nxt6000_config = {
+ .clock_inversion = 1,
+};
+
+static int digitv_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ struct digitv_state *st = adap->dev->priv;
+
+ adap->fe_adap[0].fe = dvb_attach(mt352_attach, &digitv_mt352_config,
+ &adap->dev->i2c_adap);
+ if ((adap->fe_adap[0].fe) != NULL) {
+ st->is_nxt6000 = 0;
+ return 0;
+ }
+ adap->fe_adap[0].fe = dvb_attach(nxt6000_attach,
+ &digitv_nxt6000_config,
+ &adap->dev->i2c_adap);
+ if ((adap->fe_adap[0].fe) != NULL) {
+ st->is_nxt6000 = 1;
+ return 0;
+ }
+ return -EIO;
+}
+
+static int digitv_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ struct digitv_state *st = adap->dev->priv;
+
+ if (!dvb_attach(dvb_pll_attach, adap->fe_adap[0].fe, 0x60, NULL, DVB_PLL_TDED4))
+ return -ENODEV;
+
+ if (st->is_nxt6000)
+ adap->fe_adap[0].fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params;
+
+ return 0;
+}
+
+static struct rc_map_table rc_map_digitv_table[] = {
+ { 0x5f55, KEY_0 },
+ { 0x6f55, KEY_1 },
+ { 0x9f55, KEY_2 },
+ { 0xaf55, KEY_3 },
+ { 0x5f56, KEY_4 },
+ { 0x6f56, KEY_5 },
+ { 0x9f56, KEY_6 },
+ { 0xaf56, KEY_7 },
+ { 0x5f59, KEY_8 },
+ { 0x6f59, KEY_9 },
+ { 0x9f59, KEY_TV },
+ { 0xaf59, KEY_AUX },
+ { 0x5f5a, KEY_DVD },
+ { 0x6f5a, KEY_POWER },
+ { 0x9f5a, KEY_CAMERA }, /* labelled 'Picture' */
+ { 0xaf5a, KEY_AUDIO },
+ { 0x5f65, KEY_INFO },
+ { 0x6f65, KEY_F13 }, /* 16:9 */
+ { 0x9f65, KEY_F14 }, /* 14:9 */
+ { 0xaf65, KEY_EPG },
+ { 0x5f66, KEY_EXIT },
+ { 0x6f66, KEY_MENU },
+ { 0x9f66, KEY_UP },
+ { 0xaf66, KEY_DOWN },
+ { 0x5f69, KEY_LEFT },
+ { 0x6f69, KEY_RIGHT },
+ { 0x9f69, KEY_ENTER },
+ { 0xaf69, KEY_CHANNELUP },
+ { 0x5f6a, KEY_CHANNELDOWN },
+ { 0x6f6a, KEY_VOLUMEUP },
+ { 0x9f6a, KEY_VOLUMEDOWN },
+ { 0xaf6a, KEY_RED },
+ { 0x5f95, KEY_GREEN },
+ { 0x6f95, KEY_YELLOW },
+ { 0x9f95, KEY_BLUE },
+ { 0xaf95, KEY_SUBTITLE },
+ { 0x5f96, KEY_F15 }, /* AD */
+ { 0x6f96, KEY_TEXT },
+ { 0x9f96, KEY_MUTE },
+ { 0xaf96, KEY_REWIND },
+ { 0x5f99, KEY_STOP },
+ { 0x6f99, KEY_PLAY },
+ { 0x9f99, KEY_FASTFORWARD },
+ { 0xaf99, KEY_F16 }, /* chapter */
+ { 0x5f9a, KEY_PAUSE },
+ { 0x6f9a, KEY_PLAY },
+ { 0x9f9a, KEY_RECORD },
+ { 0xaf9a, KEY_F17 }, /* picture in picture */
+ { 0x5fa5, KEY_KPPLUS }, /* zoom in */
+ { 0x6fa5, KEY_KPMINUS }, /* zoom out */
+ { 0x9fa5, KEY_F18 }, /* capture */
+ { 0xafa5, KEY_F19 }, /* web */
+ { 0x5fa6, KEY_EMAIL },
+ { 0x6fa6, KEY_PHONE },
+ { 0x9fa6, KEY_PC },
+};
+
+static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+{
+ struct rc_map_table *entry;
+ int ret, i;
+ u8 key[4];
+ u8 b[4] = { 0 };
+
+ *event = 0;
+ *state = REMOTE_NO_KEY_PRESSED;
+
+ ret = digitv_ctrl_msg(d, USB_READ_REMOTE, 0, NULL, 0, key, 4);
+ if (ret)
+ return ret;
+
+ /* Tell the device we've read the remote. Not sure how necessary
+ this is, but the Nebula SDK does it. */
+ ret = digitv_ctrl_msg(d, USB_WRITE_REMOTE, 0, b, 4, NULL, 0);
+ if (ret)
+ return ret;
+
+ /* if something is inside the buffer, simulate key press */
+ if (key[0] != 0) {
+ for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) {
+ entry = &d->props.rc.legacy.rc_map_table[i];
+
+ if (rc5_custom(entry) == key[0] &&
+ rc5_data(entry) == key[1]) {
+ *event = entry->keycode;
+ *state = REMOTE_KEY_PRESSED;
+ return 0;
+ }
+ }
+
+ deb_rc("key: %*ph\n", 4, key);
+ }
+
+ return 0;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties digitv_properties;
+
+static int digitv_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct dvb_usb_device *d;
+ int ret = dvb_usb_device_init(intf, &digitv_properties, THIS_MODULE, &d,
+ adapter_nr);
+ if (ret == 0) {
+ u8 b[4] = { 0 };
+
+ if (d != NULL) { /* do that only when the firmware is loaded */
+ b[0] = 1;
+ digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0);
+
+ b[0] = 0;
+ digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
+ }
+ }
+ return ret;
+}
+
+enum {
+ ANCHOR_NEBULA_DIGITV,
+};
+
+static struct usb_device_id digitv_table[] = {
+ DVB_USB_DEV(ANCHOR, ANCHOR_NEBULA_DIGITV),
+ { }
+};
+
+MODULE_DEVICE_TABLE (usb, digitv_table);
+
+static struct dvb_usb_device_properties digitv_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+ .usb_ctrl = CYPRESS_FX2,
+ .firmware = "dvb-usb-digitv-02.fw",
+
+ .size_of_priv = sizeof(struct digitv_state),
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .frontend_attach = digitv_frontend_attach,
+ .tuner_attach = digitv_tuner_attach,
+
+ /* parameter for the MPEG2-data transfer */
+ .stream = {
+ .type = USB_BULK,
+ .count = 7,
+ .endpoint = 0x02,
+ .u = {
+ .bulk = {
+ .buffersize = 4096,
+ }
+ }
+ },
+ }},
+ }
+ },
+ .identify_state = digitv_identify_state,
+
+ .rc.legacy = {
+ .rc_interval = 1000,
+ .rc_map_table = rc_map_digitv_table,
+ .rc_map_size = ARRAY_SIZE(rc_map_digitv_table),
+ .rc_query = digitv_rc_query,
+ },
+
+ .i2c_algo = &digitv_i2c_algo,
+
+ .generic_bulk_ctrl_endpoint = 0x01,
+
+ .num_device_descs = 1,
+ .devices = {
+ { "Nebula Electronics uDigiTV DVB-T USB2.0)",
+ { &digitv_table[ANCHOR_NEBULA_DIGITV], NULL },
+ { NULL },
+ },
+ { NULL },
+ }
+};
+
+static struct usb_driver digitv_driver = {
+ .name = "dvb_usb_digitv",
+ .probe = digitv_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = digitv_table,
+};
+
+module_usb_driver(digitv_driver);
+
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
+MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
+MODULE_VERSION("1.0-alpha");
+MODULE_LICENSE("GPL");