1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Intel CE6230 DVB USB driver
4 *
5 * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
6 */
7
8 #include "ce6230.h"
9
10 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
11
ce6230_ctrl_msg(struct dvb_usb_device * d,struct usb_req * req)12 static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
13 {
14 int ret;
15 unsigned int pipe;
16 u8 request;
17 u8 requesttype;
18 u16 value;
19 u16 index;
20 u8 *buf;
21
22 request = req->cmd;
23 value = req->value;
24 index = req->index;
25
26 switch (req->cmd) {
27 case I2C_READ:
28 case DEMOD_READ:
29 case REG_READ:
30 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
31 break;
32 case I2C_WRITE:
33 case DEMOD_WRITE:
34 case REG_WRITE:
35 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
36 break;
37 default:
38 dev_err(&d->udev->dev, "%s: unknown command=%02x\n",
39 KBUILD_MODNAME, req->cmd);
40 ret = -EINVAL;
41 goto error;
42 }
43
44 buf = kmalloc(req->data_len, GFP_KERNEL);
45 if (!buf) {
46 ret = -ENOMEM;
47 goto error;
48 }
49
50 if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
51 /* write */
52 memcpy(buf, req->data, req->data_len);
53 pipe = usb_sndctrlpipe(d->udev, 0);
54 } else {
55 /* read */
56 pipe = usb_rcvctrlpipe(d->udev, 0);
57 }
58
59 msleep(1); /* avoid I2C errors */
60
61 ret = usb_control_msg(d->udev, pipe, request, requesttype, value, index,
62 buf, req->data_len, CE6230_USB_TIMEOUT);
63
64 dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, value, index,
65 buf, req->data_len);
66
67 if (ret < 0)
68 dev_err(&d->udev->dev, "%s: usb_control_msg() failed=%d\n",
69 KBUILD_MODNAME, ret);
70 else
71 ret = 0;
72
73 /* read request, copy returned data to return buf */
74 if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
75 memcpy(req->data, buf, req->data_len);
76
77 kfree(buf);
78 error:
79 return ret;
80 }
81
82 /* I2C */
83 static struct zl10353_config ce6230_zl10353_config;
84
ce6230_i2c_master_xfer(struct i2c_adapter * adap,struct i2c_msg msg[],int num)85 static int ce6230_i2c_master_xfer(struct i2c_adapter *adap,
86 struct i2c_msg msg[], int num)
87 {
88 struct dvb_usb_device *d = i2c_get_adapdata(adap);
89 int ret = 0, i = 0;
90 struct usb_req req;
91
92 if (num > 2)
93 return -EOPNOTSUPP;
94
95 memset(&req, 0, sizeof(req));
96
97 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
98 return -EAGAIN;
99
100 while (i < num) {
101 if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
102 if (msg[i].addr ==
103 ce6230_zl10353_config.demod_address) {
104 if (msg[i].len < 1) {
105 i = -EOPNOTSUPP;
106 break;
107 }
108 req.cmd = DEMOD_READ;
109 req.value = msg[i].addr >> 1;
110 req.index = msg[i].buf[0];
111 req.data_len = msg[i+1].len;
112 req.data = &msg[i+1].buf[0];
113 ret = ce6230_ctrl_msg(d, &req);
114 } else {
115 dev_err(&d->udev->dev, "%s: I2C read not " \
116 "implemented\n",
117 KBUILD_MODNAME);
118 ret = -EOPNOTSUPP;
119 }
120 i += 2;
121 } else {
122 if (msg[i].addr ==
123 ce6230_zl10353_config.demod_address) {
124 if (msg[i].len < 1) {
125 i = -EOPNOTSUPP;
126 break;
127 }
128 req.cmd = DEMOD_WRITE;
129 req.value = msg[i].addr >> 1;
130 req.index = msg[i].buf[0];
131 req.data_len = msg[i].len-1;
132 req.data = &msg[i].buf[1];
133 ret = ce6230_ctrl_msg(d, &req);
134 } else {
135 req.cmd = I2C_WRITE;
136 req.value = 0x2000 + (msg[i].addr >> 1);
137 req.index = 0x0000;
138 req.data_len = msg[i].len;
139 req.data = &msg[i].buf[0];
140 ret = ce6230_ctrl_msg(d, &req);
141 }
142 i += 1;
143 }
144 if (ret)
145 break;
146 }
147
148 mutex_unlock(&d->i2c_mutex);
149 return ret ? ret : i;
150 }
151
ce6230_i2c_functionality(struct i2c_adapter * adapter)152 static u32 ce6230_i2c_functionality(struct i2c_adapter *adapter)
153 {
154 return I2C_FUNC_I2C;
155 }
156
157 static struct i2c_algorithm ce6230_i2c_algorithm = {
158 .master_xfer = ce6230_i2c_master_xfer,
159 .functionality = ce6230_i2c_functionality,
160 };
161
162 /* Callbacks for DVB USB */
163 static struct zl10353_config ce6230_zl10353_config = {
164 .demod_address = 0x1e,
165 .adc_clock = 450000,
166 .if2 = 45700,
167 .no_tuner = 1,
168 .parallel_ts = 1,
169 .clock_ctl_1 = 0x34,
170 .pll_0 = 0x0e,
171 };
172
ce6230_zl10353_frontend_attach(struct dvb_usb_adapter * adap)173 static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
174 {
175 struct dvb_usb_device *d = adap_to_d(adap);
176
177 dev_dbg(&d->udev->dev, "%s:\n", __func__);
178
179 adap->fe[0] = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
180 &d->i2c_adap);
181 if (adap->fe[0] == NULL)
182 return -ENODEV;
183
184 return 0;
185 }
186
187 static struct mxl5005s_config ce6230_mxl5003s_config = {
188 .i2c_address = 0xc6,
189 .if_freq = IF_FREQ_4570000HZ,
190 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
191 .agc_mode = MXL_SINGLE_AGC,
192 .tracking_filter = MXL_TF_DEFAULT,
193 .rssi_enable = MXL_RSSI_ENABLE,
194 .cap_select = MXL_CAP_SEL_ENABLE,
195 .div_out = MXL_DIV_OUT_4,
196 .clock_out = MXL_CLOCK_OUT_DISABLE,
197 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
198 .top = MXL5005S_TOP_25P2,
199 .mod_mode = MXL_DIGITAL_MODE,
200 .if_mode = MXL_ZERO_IF,
201 .AgcMasterByte = 0x00,
202 };
203
ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter * adap)204 static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
205 {
206 struct dvb_usb_device *d = adap_to_d(adap);
207 int ret;
208
209 dev_dbg(&d->udev->dev, "%s:\n", __func__);
210
211 ret = dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap,
212 &ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
213 return ret;
214 }
215
ce6230_power_ctrl(struct dvb_usb_device * d,int onoff)216 static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
217 {
218 int ret;
219
220 dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
221
222 /* InterfaceNumber 1 / AlternateSetting 0 idle
223 InterfaceNumber 1 / AlternateSetting 1 streaming */
224 ret = usb_set_interface(d->udev, 1, onoff);
225 if (ret)
226 dev_err(&d->udev->dev, "%s: usb_set_interface() failed=%d\n",
227 KBUILD_MODNAME, ret);
228
229 return ret;
230 }
231
232 /* DVB USB Driver stuff */
233 static struct dvb_usb_device_properties ce6230_props = {
234 .driver_name = KBUILD_MODNAME,
235 .owner = THIS_MODULE,
236 .adapter_nr = adapter_nr,
237 .bInterfaceNumber = 1,
238
239 .i2c_algo = &ce6230_i2c_algorithm,
240 .power_ctrl = ce6230_power_ctrl,
241 .frontend_attach = ce6230_zl10353_frontend_attach,
242 .tuner_attach = ce6230_mxl5003s_tuner_attach,
243
244 .num_adapters = 1,
245 .adapter = {
246 {
247 .stream = {
248 .type = USB_BULK,
249 .count = 6,
250 .endpoint = 0x82,
251 .u = {
252 .bulk = {
253 .buffersize = (16 * 512),
254 }
255 }
256 },
257 }
258 },
259 };
260
261 static const struct usb_device_id ce6230_id_table[] = {
262 { DVB_USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500,
263 &ce6230_props, "Intel CE9500 reference design", NULL) },
264 { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310,
265 &ce6230_props, "AVerMedia A310 USB 2.0 DVB-T tuner", NULL) },
266 { }
267 };
268 MODULE_DEVICE_TABLE(usb, ce6230_id_table);
269
270 static struct usb_driver ce6230_usb_driver = {
271 .name = KBUILD_MODNAME,
272 .id_table = ce6230_id_table,
273 .probe = dvb_usbv2_probe,
274 .disconnect = dvb_usbv2_disconnect,
275 .suspend = dvb_usbv2_suspend,
276 .resume = dvb_usbv2_resume,
277 .reset_resume = dvb_usbv2_reset_resume,
278 .no_dynamic_id = 1,
279 .soft_unbind = 1,
280 };
281
282 module_usb_driver(ce6230_usb_driver);
283
284 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
285 MODULE_DESCRIPTION("Intel CE6230 driver");
286 MODULE_LICENSE("GPL");
287