Merge branch 'linus' into x86/xen
[linux-2.6] / drivers / media / dvb / dvb-usb / gp8psk.c
1 /* DVB USB compliant Linux driver for the
2  *  - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
3  *
4  * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
5  * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
6  *
7  * Thanks to GENPIX for the sample code used to implement this module.
8  *
9  * This module is based off the vp7045 and vp702x modules
10  *
11  *      This program is free software; you can redistribute it and/or modify it
12  *      under the terms of the GNU General Public License as published by the Free
13  *      Software Foundation, version 2.
14  *
15  * see Documentation/dvb/README.dvb-usb for more information
16  */
17 #include "gp8psk.h"
18
19 /* debug */
20 static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
21 int dvb_usb_gp8psk_debug;
22 module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644);
23 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
24
25 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
26
27 int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
28 {
29         int ret = 0,try = 0;
30
31         if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
32                 return ret;
33
34         while (ret >= 0 && ret != blen && try < 3) {
35                 ret = usb_control_msg(d->udev,
36                         usb_rcvctrlpipe(d->udev,0),
37                         req,
38                         USB_TYPE_VENDOR | USB_DIR_IN,
39                         value,index,b,blen,
40                         2000);
41                 deb_info("reading number %d (ret: %d)\n",try,ret);
42                 try++;
43         }
44
45         if (ret < 0 || ret != blen) {
46                 warn("usb in %d operation failed.", req);
47                 ret = -EIO;
48         } else
49                 ret = 0;
50
51         deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
52         debug_dump(b,blen,deb_xfer);
53
54         mutex_unlock(&d->usb_mutex);
55
56         return ret;
57 }
58
59 int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
60                              u16 index, u8 *b, int blen)
61 {
62         int ret;
63
64         deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
65         debug_dump(b,blen,deb_xfer);
66
67         if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
68                 return ret;
69
70         if (usb_control_msg(d->udev,
71                         usb_sndctrlpipe(d->udev,0),
72                         req,
73                         USB_TYPE_VENDOR | USB_DIR_OUT,
74                         value,index,b,blen,
75                         2000) != blen) {
76                 warn("usb out operation failed.");
77                 ret = -EIO;
78         } else
79                 ret = 0;
80         mutex_unlock(&d->usb_mutex);
81
82         return ret;
83 }
84
85 static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
86 {
87         int ret;
88         const struct firmware *fw = NULL;
89         u8 *ptr, *buf;
90         if ((ret = request_firmware(&fw, bcm4500_firmware,
91                                         &d->udev->dev)) != 0) {
92                 err("did not find the bcm4500 firmware file. (%s) "
93                         "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
94                         bcm4500_firmware,ret);
95                 return ret;
96         }
97
98         ret = -EINVAL;
99
100         if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
101                 goto out_rel_fw;
102
103         info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);
104
105         ptr = fw->data;
106         buf = kmalloc(64, GFP_KERNEL | GFP_DMA);
107
108         while (ptr[0] != 0xff) {
109                 u16 buflen = ptr[0] + 4;
110                 if (ptr + buflen >= fw->data + fw->size) {
111                         err("failed to load bcm4500 firmware.");
112                         goto out_free;
113                 }
114                 memcpy(buf, ptr, buflen);
115                 if (dvb_usb_generic_write(d, buf, buflen)) {
116                         err("failed to load bcm4500 firmware.");
117                         goto out_free;
118                 }
119                 ptr += buflen;
120         }
121
122         ret = 0;
123
124 out_free:
125         kfree(buf);
126 out_rel_fw:
127         release_firmware(fw);
128
129         return ret;
130 }
131
132 static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
133 {
134         u8 status, buf;
135         int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
136
137         if (onoff) {
138                 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
139                 if (! (status & bm8pskStarted)) {  /* started */
140                         if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
141                                 gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
142                         if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
143                                 return -EINVAL;
144                 }
145
146                 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
147                         if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
148                                 if(gp8psk_load_bcm4500fw(d))
149                                         return -EINVAL;
150
151                 if (! (status & bmIntersilOn)) /* LNB Power */
152                         if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
153                                         &buf, 1))
154                                 return -EINVAL;
155
156                 /* Set DVB mode to 1 */
157                 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
158                         if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
159                                 return -EINVAL;
160                 /* Abort possible TS (if previous tune crashed) */
161                 if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
162                         return -EINVAL;
163         } else {
164                 /* Turn off LNB power */
165                 if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
166                         return -EINVAL;
167                 /* Turn off 8psk power */
168                 if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
169                         return -EINVAL;
170                 if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
171                         gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
172         }
173         return 0;
174 }
175
176
177 static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
178 {
179         return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
180 }
181
182 static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
183 {
184         adap->fe = gp8psk_fe_attach(adap->dev);
185         return 0;
186 }
187
188 static struct dvb_usb_device_properties gp8psk_properties;
189
190 static int gp8psk_usb_probe(struct usb_interface *intf,
191                 const struct usb_device_id *id)
192 {
193         int ret;
194         struct usb_device *udev = interface_to_usbdev(intf);
195         ret = dvb_usb_device_init(intf, &gp8psk_properties,
196                                   THIS_MODULE, NULL, adapter_nr);
197         if (ret == 0) {
198                 info("found Genpix USB device pID = %x (hex)",
199                         le16_to_cpu(udev->descriptor.idProduct));
200         }
201         return ret;
202 }
203
204 static struct usb_device_id gp8psk_usb_table [] = {
205             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) },
206             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) },
207             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) },
208             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) },
209             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) },
210             { 0 },
211 };
212 MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);
213
214 static struct dvb_usb_device_properties gp8psk_properties = {
215         .usb_ctrl = CYPRESS_FX2,
216         .firmware = "dvb-usb-gp8psk-01.fw",
217
218         .num_adapters = 1,
219         .adapter = {
220                 {
221                         .streaming_ctrl   = gp8psk_streaming_ctrl,
222                         .frontend_attach  = gp8psk_frontend_attach,
223                         /* parameter for the MPEG2-data transfer */
224                         .stream = {
225                                 .type = USB_BULK,
226                                 .count = 7,
227                                 .endpoint = 0x82,
228                                 .u = {
229                                         .bulk = {
230                                                 .buffersize = 8192,
231                                         }
232                                 }
233                         },
234                 }
235         },
236         .power_ctrl       = gp8psk_power_ctrl,
237
238         .generic_bulk_ctrl_endpoint = 0x01,
239
240         .num_device_descs = 4,
241         .devices = {
242                 { .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
243                   .cold_ids = { &gp8psk_usb_table[0], NULL },
244                   .warm_ids = { &gp8psk_usb_table[1], NULL },
245                 },
246                 { .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
247                   .cold_ids = { NULL },
248                   .warm_ids = { &gp8psk_usb_table[2], NULL },
249                 },
250                 { .name = "Genpix SkyWalker-1 DVB-S receiver",
251                   .cold_ids = { NULL },
252                   .warm_ids = { &gp8psk_usb_table[3], NULL },
253                 },
254                 { .name = "Genpix SkyWalker-CW3K DVB-S receiver",
255                   .cold_ids = { NULL },
256                   .warm_ids = { &gp8psk_usb_table[4], NULL },
257                 },
258                 { NULL },
259         }
260 };
261
262 /* usb specific object needed to register this driver with the usb subsystem */
263 static struct usb_driver gp8psk_usb_driver = {
264         .name           = "dvb_usb_gp8psk",
265         .probe          = gp8psk_usb_probe,
266         .disconnect = dvb_usb_device_exit,
267         .id_table       = gp8psk_usb_table,
268 };
269
270 /* module stuff */
271 static int __init gp8psk_usb_module_init(void)
272 {
273         int result;
274         if ((result = usb_register(&gp8psk_usb_driver))) {
275                 err("usb_register failed. (%d)",result);
276                 return result;
277         }
278
279         return 0;
280 }
281
282 static void __exit gp8psk_usb_module_exit(void)
283 {
284         /* deregister this driver from the USB subsystem */
285         usb_deregister(&gp8psk_usb_driver);
286 }
287
288 module_init(gp8psk_usb_module_init);
289 module_exit(gp8psk_usb_module_exit);
290
291 MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
292 MODULE_DESCRIPTION("Driver for Genpix 8psk-to-USB2 DVB-S");
293 MODULE_VERSION("1.1");
294 MODULE_LICENSE("GPL");