1 // SPDX-License-Identifier: GPL-2.0-only
2 /* DVB USB compliant Linux driver for the
3 * - TwinhanDTV Alpha/MagicBoxII USB2.0 DVB-T receiver
4 * - DigitalNow TinyUSB2 DVB-t receiver
5 *
6 * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
7 *
8 * Thanks to Twinhan who kindly provided hardware and information.
9 *
10 * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
11 */
12 #include "vp7045.h"
13
14 /* debug */
15 static int dvb_usb_vp7045_debug;
16 module_param_named(debug,dvb_usb_vp7045_debug, int, 0644);
17 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
18
19 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
20
21 #define deb_info(args...) dprintk(dvb_usb_vp7045_debug,0x01,args)
22 #define deb_xfer(args...) dprintk(dvb_usb_vp7045_debug,0x02,args)
23 #define deb_rc(args...) dprintk(dvb_usb_vp7045_debug,0x04,args)
24
vp7045_usb_op(struct dvb_usb_device * d,u8 cmd,u8 * out,int outlen,u8 * in,int inlen,int msec)25 int vp7045_usb_op(struct dvb_usb_device *d, u8 cmd, u8 *out, int outlen, u8 *in, int inlen, int msec)
26 {
27 int ret = 0;
28 u8 *buf = d->priv;
29
30 buf[0] = cmd;
31
32 if (outlen > 19)
33 outlen = 19;
34
35 if (inlen > 11)
36 inlen = 11;
37
38 ret = mutex_lock_interruptible(&d->usb_mutex);
39 if (ret)
40 return ret;
41
42 if (out != NULL && outlen > 0)
43 memcpy(&buf[1], out, outlen);
44
45 deb_xfer("out buffer: ");
46 debug_dump(buf, outlen+1, deb_xfer);
47
48
49 if (usb_control_msg(d->udev,
50 usb_sndctrlpipe(d->udev,0),
51 TH_COMMAND_OUT, USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0,
52 buf, 20, 2000) != 20) {
53 err("USB control message 'out' went wrong.");
54 ret = -EIO;
55 goto unlock;
56 }
57
58 msleep(msec);
59
60 if (usb_control_msg(d->udev,
61 usb_rcvctrlpipe(d->udev,0),
62 TH_COMMAND_IN, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
63 buf, 12, 2000) != 12) {
64 err("USB control message 'in' went wrong.");
65 ret = -EIO;
66 goto unlock;
67 }
68
69 deb_xfer("in buffer: ");
70 debug_dump(buf, 12, deb_xfer);
71
72 if (in != NULL && inlen > 0)
73 memcpy(in, &buf[1], inlen);
74
75 unlock:
76 mutex_unlock(&d->usb_mutex);
77
78 return ret;
79 }
80
vp7045_read_reg(struct dvb_usb_device * d,u8 reg)81 u8 vp7045_read_reg(struct dvb_usb_device *d, u8 reg)
82 {
83 u8 obuf[2] = { 0 },v;
84 obuf[1] = reg;
85
86 vp7045_usb_op(d,TUNER_REG_READ,obuf,2,&v,1,30);
87
88 return v;
89 }
90
vp7045_power_ctrl(struct dvb_usb_device * d,int onoff)91 static int vp7045_power_ctrl(struct dvb_usb_device *d, int onoff)
92 {
93 u8 v = onoff;
94 return vp7045_usb_op(d,SET_TUNER_POWER,&v,1,NULL,0,150);
95 }
96
vp7045_rc_query(struct dvb_usb_device * d)97 static int vp7045_rc_query(struct dvb_usb_device *d)
98 {
99 int ret;
100 u8 key;
101
102 ret = vp7045_usb_op(d, RC_VAL_READ, NULL, 0, &key, 1, 20);
103 if (ret)
104 return ret;
105
106 deb_rc("remote query key: %x\n", key);
107
108 if (key != 0x44) {
109 /*
110 * The 8 bit address isn't available, but since the remote uses
111 * address 0 we'll use that. nec repeats are ignored too, even
112 * though the remote sends them.
113 */
114 rc_keydown(d->rc_dev, RC_PROTO_NEC, RC_SCANCODE_NEC(0, key), 0);
115 }
116
117 return 0;
118 }
119
vp7045_read_eeprom(struct dvb_usb_device * d,u8 * buf,int len,int offset)120 static int vp7045_read_eeprom(struct dvb_usb_device *d,u8 *buf, int len, int offset)
121 {
122 int i, ret;
123 u8 v, br[2];
124 for (i=0; i < len; i++) {
125 v = offset + i;
126 ret = vp7045_usb_op(d, GET_EE_VALUE, &v, 1, br, 2, 5);
127 if (ret)
128 return ret;
129
130 buf[i] = br[1];
131 }
132 deb_info("VP7045 EEPROM read (offs: %d, len: %d) : ", offset, i);
133 debug_dump(buf, i, deb_info);
134 return 0;
135 }
136
vp7045_read_mac_addr(struct dvb_usb_device * d,u8 mac[6])137 static int vp7045_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
138 {
139 return vp7045_read_eeprom(d,mac, 6, MAC_0_ADDR);
140 }
141
vp7045_frontend_attach(struct dvb_usb_adapter * adap)142 static int vp7045_frontend_attach(struct dvb_usb_adapter *adap)
143 {
144 u8 buf[255] = { 0 };
145
146 vp7045_usb_op(adap->dev,VENDOR_STRING_READ,NULL,0,buf,20,0);
147 buf[10] = '\0';
148 deb_info("firmware says: %s ",buf);
149
150 vp7045_usb_op(adap->dev,PRODUCT_STRING_READ,NULL,0,buf,20,0);
151 buf[10] = '\0';
152 deb_info("%s ",buf);
153
154 vp7045_usb_op(adap->dev,FW_VERSION_READ,NULL,0,buf,20,0);
155 buf[10] = '\0';
156 deb_info("v%s\n",buf);
157
158 /* Dump the EEPROM */
159 /* vp7045_read_eeprom(d,buf, 255, FX2_ID_ADDR); */
160
161 adap->fe_adap[0].fe = vp7045_fe_attach(adap->dev);
162
163 return 0;
164 }
165
166 static struct dvb_usb_device_properties vp7045_properties;
167
vp7045_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)168 static int vp7045_usb_probe(struct usb_interface *intf,
169 const struct usb_device_id *id)
170 {
171 return dvb_usb_device_init(intf, &vp7045_properties,
172 THIS_MODULE, NULL, adapter_nr);
173 }
174
175 enum {
176 VISIONPLUS_VP7045_COLD,
177 VISIONPLUS_VP7045_WARM,
178 VISIONPLUS_TINYUSB2_COLD,
179 VISIONPLUS_TINYUSB2_WARM,
180 };
181
182 static struct usb_device_id vp7045_usb_table[] = {
183 DVB_USB_DEV(VISIONPLUS, VISIONPLUS_VP7045_COLD),
184 DVB_USB_DEV(VISIONPLUS, VISIONPLUS_VP7045_WARM),
185 DVB_USB_DEV(VISIONPLUS, VISIONPLUS_TINYUSB2_COLD),
186 DVB_USB_DEV(VISIONPLUS, VISIONPLUS_TINYUSB2_WARM),
187 { }
188 };
189
190 MODULE_DEVICE_TABLE(usb, vp7045_usb_table);
191
192 static struct dvb_usb_device_properties vp7045_properties = {
193 .usb_ctrl = CYPRESS_FX2,
194 .firmware = "dvb-usb-vp7045-01.fw",
195 .size_of_priv = 20,
196
197 .num_adapters = 1,
198 .adapter = {
199 {
200 .num_frontends = 1,
201 .fe = {{
202 .frontend_attach = vp7045_frontend_attach,
203 /* parameter for the MPEG2-data transfer */
204 .stream = {
205 .type = USB_BULK,
206 .count = 7,
207 .endpoint = 0x02,
208 .u = {
209 .bulk = {
210 .buffersize = 4096,
211 }
212 }
213 },
214 }},
215 }
216 },
217 .power_ctrl = vp7045_power_ctrl,
218 .read_mac_address = vp7045_read_mac_addr,
219
220 .rc.core = {
221 .rc_interval = 400,
222 .rc_codes = RC_MAP_TWINHAN_VP1027_DVBS,
223 .module_name = KBUILD_MODNAME,
224 .rc_query = vp7045_rc_query,
225 .allowed_protos = RC_PROTO_BIT_NEC,
226 .scancode_mask = 0xff,
227 },
228
229 .num_device_descs = 2,
230 .devices = {
231 { .name = "Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)",
232 .cold_ids = { &vp7045_usb_table[VISIONPLUS_VP7045_COLD], NULL },
233 .warm_ids = { &vp7045_usb_table[VISIONPLUS_VP7045_WARM], NULL },
234 },
235 { .name = "DigitalNow TinyUSB 2 DVB-t Receiver",
236 .cold_ids = { &vp7045_usb_table[VISIONPLUS_TINYUSB2_COLD], NULL },
237 .warm_ids = { &vp7045_usb_table[VISIONPLUS_TINYUSB2_WARM], NULL },
238 },
239 { NULL },
240 }
241 };
242
243 /* usb specific object needed to register this driver with the usb subsystem */
244 static struct usb_driver vp7045_usb_driver = {
245 .name = "dvb_usb_vp7045",
246 .probe = vp7045_usb_probe,
247 .disconnect = dvb_usb_device_exit,
248 .id_table = vp7045_usb_table,
249 };
250
251 module_usb_driver(vp7045_usb_driver);
252
253 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
254 MODULE_DESCRIPTION("Driver for Twinhan MagicBox/Alpha and DNTV tinyUSB2 DVB-T USB2.0");
255 MODULE_VERSION("1.0");
256 MODULE_LICENSE("GPL");
257