xref: /openbmc/linux/drivers/media/usb/dvb-usb/vp7045.c (revision 68198dca)
1 /* DVB USB compliant Linux driver for the
2  *  - TwinhanDTV Alpha/MagicBoxII USB2.0 DVB-T receiver
3  *  - DigitalNow TinyUSB2 DVB-t receiver
4  *
5  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
6  *
7  * Thanks to Twinhan who kindly provided hardware and information.
8  *
9  *	This program is free software; you can redistribute it and/or modify it
10  *	under the terms of the GNU General Public License as published by the Free
11  *	Software Foundation, version 2.
12  *
13  * see Documentation/dvb/README.dvb-usb for more information
14  */
15 #include "vp7045.h"
16 
17 /* debug */
18 static int dvb_usb_vp7045_debug;
19 module_param_named(debug,dvb_usb_vp7045_debug, int, 0644);
20 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
21 
22 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
23 
24 #define deb_info(args...) dprintk(dvb_usb_vp7045_debug,0x01,args)
25 #define deb_xfer(args...) dprintk(dvb_usb_vp7045_debug,0x02,args)
26 #define deb_rc(args...)   dprintk(dvb_usb_vp7045_debug,0x04,args)
27 
28 int vp7045_usb_op(struct dvb_usb_device *d, u8 cmd, u8 *out, int outlen, u8 *in, int inlen, int msec)
29 {
30 	int ret = 0;
31 	u8 *buf = d->priv;
32 
33 	buf[0] = cmd;
34 
35 	if (outlen > 19)
36 		outlen = 19;
37 
38 	if (inlen > 11)
39 		inlen = 11;
40 
41 	ret = mutex_lock_interruptible(&d->usb_mutex);
42 	if (ret)
43 		return ret;
44 
45 	if (out != NULL && outlen > 0)
46 		memcpy(&buf[1], out, outlen);
47 
48 	deb_xfer("out buffer: ");
49 	debug_dump(buf, outlen+1, deb_xfer);
50 
51 
52 	if (usb_control_msg(d->udev,
53 			usb_sndctrlpipe(d->udev,0),
54 			TH_COMMAND_OUT, USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0,
55 			buf, 20, 2000) != 20) {
56 		err("USB control message 'out' went wrong.");
57 		ret = -EIO;
58 		goto unlock;
59 	}
60 
61 	msleep(msec);
62 
63 	if (usb_control_msg(d->udev,
64 			usb_rcvctrlpipe(d->udev,0),
65 			TH_COMMAND_IN, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
66 			buf, 12, 2000) != 12) {
67 		err("USB control message 'in' went wrong.");
68 		ret = -EIO;
69 		goto unlock;
70 	}
71 
72 	deb_xfer("in buffer: ");
73 	debug_dump(buf, 12, deb_xfer);
74 
75 	if (in != NULL && inlen > 0)
76 		memcpy(in, &buf[1], inlen);
77 
78 unlock:
79 	mutex_unlock(&d->usb_mutex);
80 
81 	return ret;
82 }
83 
84 u8 vp7045_read_reg(struct dvb_usb_device *d, u8 reg)
85 {
86 	u8 obuf[2] = { 0 },v;
87 	obuf[1] = reg;
88 
89 	vp7045_usb_op(d,TUNER_REG_READ,obuf,2,&v,1,30);
90 
91 	return v;
92 }
93 
94 static int vp7045_power_ctrl(struct dvb_usb_device *d, int onoff)
95 {
96 	u8 v = onoff;
97 	return vp7045_usb_op(d,SET_TUNER_POWER,&v,1,NULL,0,150);
98 }
99 
100 static int vp7045_rc_query(struct dvb_usb_device *d)
101 {
102 	u8 key;
103 	vp7045_usb_op(d,RC_VAL_READ,NULL,0,&key,1,20);
104 
105 	deb_rc("remote query key: %x %d\n",key,key);
106 
107 	if (key != 0x44) {
108 		/*
109 		 * The 8 bit address isn't available, but since the remote uses
110 		 * address 0 we'll use that. nec repeats are ignored too, even
111 		 * though the remote sends them.
112 		 */
113 		rc_keydown(d->rc_dev, RC_PROTO_NEC, RC_SCANCODE_NEC(0, key), 0);
114 	}
115 
116 	return 0;
117 }
118 
119 static int vp7045_read_eeprom(struct dvb_usb_device *d,u8 *buf, int len, int offset)
120 {
121 	int i = 0;
122 	u8 v,br[2];
123 	for (i=0; i < len; i++) {
124 		v = offset + i;
125 		vp7045_usb_op(d,GET_EE_VALUE,&v,1,br,2,5);
126 		buf[i] = br[1];
127 	}
128 	deb_info("VP7045 EEPROM read (offs: %d, len: %d) : ",offset, i);
129 	debug_dump(buf,i,deb_info);
130 	return 0;
131 }
132 
133 static int vp7045_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
134 {
135 	return vp7045_read_eeprom(d,mac, 6, MAC_0_ADDR);
136 }
137 
138 static int vp7045_frontend_attach(struct dvb_usb_adapter *adap)
139 {
140 	u8 buf[255] = { 0 };
141 
142 	vp7045_usb_op(adap->dev,VENDOR_STRING_READ,NULL,0,buf,20,0);
143 	buf[10] = '\0';
144 	deb_info("firmware says: %s ",buf);
145 
146 	vp7045_usb_op(adap->dev,PRODUCT_STRING_READ,NULL,0,buf,20,0);
147 	buf[10] = '\0';
148 	deb_info("%s ",buf);
149 
150 	vp7045_usb_op(adap->dev,FW_VERSION_READ,NULL,0,buf,20,0);
151 	buf[10] = '\0';
152 	deb_info("v%s\n",buf);
153 
154 /*	Dump the EEPROM */
155 /*	vp7045_read_eeprom(d,buf, 255, FX2_ID_ADDR); */
156 
157 	adap->fe_adap[0].fe = vp7045_fe_attach(adap->dev);
158 
159 	return 0;
160 }
161 
162 static struct dvb_usb_device_properties vp7045_properties;
163 
164 static int vp7045_usb_probe(struct usb_interface *intf,
165 		const struct usb_device_id *id)
166 {
167 	return dvb_usb_device_init(intf, &vp7045_properties,
168 				   THIS_MODULE, NULL, adapter_nr);
169 }
170 
171 static struct usb_device_id vp7045_usb_table [] = {
172 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_COLD) },
173 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_WARM) },
174 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_COLD) },
175 	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_WARM) },
176 	    { 0 },
177 };
178 MODULE_DEVICE_TABLE(usb, vp7045_usb_table);
179 
180 static struct dvb_usb_device_properties vp7045_properties = {
181 	.usb_ctrl = CYPRESS_FX2,
182 	.firmware = "dvb-usb-vp7045-01.fw",
183 	.size_of_priv = 20,
184 
185 	.num_adapters = 1,
186 	.adapter = {
187 		{
188 		.num_frontends = 1,
189 		.fe = {{
190 			.frontend_attach  = vp7045_frontend_attach,
191 			/* parameter for the MPEG2-data transfer */
192 			.stream = {
193 				.type = USB_BULK,
194 				.count = 7,
195 				.endpoint = 0x02,
196 				.u = {
197 					.bulk = {
198 						.buffersize = 4096,
199 					}
200 				}
201 			},
202 		}},
203 		}
204 	},
205 	.power_ctrl       = vp7045_power_ctrl,
206 	.read_mac_address = vp7045_read_mac_addr,
207 
208 	.rc.core = {
209 		.rc_interval	= 400,
210 		.rc_codes	= RC_MAP_TWINHAN_VP1027_DVBS,
211 		.module_name    = KBUILD_MODNAME,
212 		.rc_query	= vp7045_rc_query,
213 		.allowed_protos = RC_PROTO_BIT_NEC,
214 		.scancode_mask	= 0xff,
215 	},
216 
217 	.num_device_descs = 2,
218 	.devices = {
219 		{ .name = "Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)",
220 		  .cold_ids = { &vp7045_usb_table[0], NULL },
221 		  .warm_ids = { &vp7045_usb_table[1], NULL },
222 		},
223 		{ .name = "DigitalNow TinyUSB 2 DVB-t Receiver",
224 		  .cold_ids = { &vp7045_usb_table[2], NULL },
225 		  .warm_ids = { &vp7045_usb_table[3], NULL },
226 		},
227 		{ NULL },
228 	}
229 };
230 
231 /* usb specific object needed to register this driver with the usb subsystem */
232 static struct usb_driver vp7045_usb_driver = {
233 	.name		= "dvb_usb_vp7045",
234 	.probe		= vp7045_usb_probe,
235 	.disconnect	= dvb_usb_device_exit,
236 	.id_table	= vp7045_usb_table,
237 };
238 
239 module_usb_driver(vp7045_usb_driver);
240 
241 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
242 MODULE_DESCRIPTION("Driver for Twinhan MagicBox/Alpha and DNTV tinyUSB2 DVB-T USB2.0");
243 MODULE_VERSION("1.0");
244 MODULE_LICENSE("GPL");
245