Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
[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         const u8 *ptr;
90         u8 *buf;
91         if ((ret = request_firmware(&fw, bcm4500_firmware,
92                                         &d->udev->dev)) != 0) {
93                 err("did not find the bcm4500 firmware file. (%s) "
94                         "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
95                         bcm4500_firmware,ret);
96                 return ret;
97         }
98
99         ret = -EINVAL;
100
101         if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
102                 goto out_rel_fw;
103
104         info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);
105
106         ptr = fw->data;
107         buf = kmalloc(64, GFP_KERNEL | GFP_DMA);
108
109         while (ptr[0] != 0xff) {
110                 u16 buflen = ptr[0] + 4;
111                 if (ptr + buflen >= fw->data + fw->size) {
112                         err("failed to load bcm4500 firmware.");
113                         goto out_free;
114                 }
115                 memcpy(buf, ptr, buflen);
116                 if (dvb_usb_generic_write(d, buf, buflen)) {
117                         err("failed to load bcm4500 firmware.");
118                         goto out_free;
119                 }
120                 ptr += buflen;
121         }
122
123         ret = 0;
124
125 out_free:
126         kfree(buf);
127 out_rel_fw:
128         release_firmware(fw);
129
130         return ret;
131 }
132
133 static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
134 {
135         u8 status, buf;
136         int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
137
138         if (onoff) {
139                 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
140                 if (! (status & bm8pskStarted)) {  /* started */
141                         if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
142                                 gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
143                         if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
144                                 return -EINVAL;
145                 }
146
147                 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
148                         if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
149                                 if(gp8psk_load_bcm4500fw(d))
150                                         return -EINVAL;
151
152                 if (! (status & bmIntersilOn)) /* LNB Power */
153                         if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
154                                         &buf, 1))
155                                 return -EINVAL;
156
157                 /* Set DVB mode to 1 */
158                 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
159                         if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
160                                 return -EINVAL;
161                 /* Abort possible TS (if previous tune crashed) */
162                 if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
163                         return -EINVAL;
164         } else {
165                 /* Turn off LNB power */
166                 if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
167                         return -EINVAL;
168                 /* Turn off 8psk power */
169                 if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
170                         return -EINVAL;
171                 if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
172                         gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
173         }
174         return 0;
175 }
176
177
178 static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
179 {
180         return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
181 }
182
183 static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
184 {
185         adap->fe = gp8psk_fe_attach(adap->dev);
186         return 0;
187 }
188
189 static struct dvb_usb_device_properties gp8psk_properties;
190
191 static int gp8psk_usb_probe(struct usb_interface *intf,
192                 const struct usb_device_id *id)
193 {
194         int ret;
195         struct usb_device *udev = interface_to_usbdev(intf);
196         ret = dvb_usb_device_init(intf, &gp8psk_properties,
197                                   THIS_MODULE, NULL, adapter_nr);
198         if (ret == 0) {
199                 info("found Genpix USB device pID = %x (hex)",
200                         le16_to_cpu(udev->descriptor.idProduct));
201         }
202         return ret;
203 }
204
205 static struct usb_device_id gp8psk_usb_table [] = {
206             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) },
207             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) },
208             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) },
209             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) },
210             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) },
211             { 0 },
212 };
213 MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);
214
215 static struct dvb_usb_device_properties gp8psk_properties = {
216         .usb_ctrl = CYPRESS_FX2,
217         .firmware = "dvb-usb-gp8psk-01.fw",
218
219         .num_adapters = 1,
220         .adapter = {
221                 {
222                         .streaming_ctrl   = gp8psk_streaming_ctrl,
223                         .frontend_attach  = gp8psk_frontend_attach,
224                         /* parameter for the MPEG2-data transfer */
225                         .stream = {
226                                 .type = USB_BULK,
227                                 .count = 7,
228                                 .endpoint = 0x82,
229                                 .u = {
230                                         .bulk = {
231                                                 .buffersize = 8192,
232                                         }
233                                 }
234                         },
235                 }
236         },
237         .power_ctrl       = gp8psk_power_ctrl,
238
239         .generic_bulk_ctrl_endpoint = 0x01,
240
241         .num_device_descs = 4,
242         .devices = {
243                 { .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
244                   .cold_ids = { &gp8psk_usb_table[0], NULL },
245                   .warm_ids = { &gp8psk_usb_table[1], NULL },
246                 },
247                 { .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
248                   .cold_ids = { NULL },
249                   .warm_ids = { &gp8psk_usb_table[2], NULL },
250                 },
251                 { .name = "Genpix SkyWalker-1 DVB-S receiver",
252                   .cold_ids = { NULL },
253                   .warm_ids = { &gp8psk_usb_table[3], NULL },
254                 },
255                 { .name = "Genpix SkyWalker-CW3K DVB-S receiver",
256                   .cold_ids = { NULL },
257                   .warm_ids = { &gp8psk_usb_table[4], NULL },
258                 },
259                 { NULL },
260         }
261 };
262
263 /* usb specific object needed to register this driver with the usb subsystem */
264 static struct usb_driver gp8psk_usb_driver = {
265         .name           = "dvb_usb_gp8psk",
266         .probe          = gp8psk_usb_probe,
267         .disconnect = dvb_usb_device_exit,
268         .id_table       = gp8psk_usb_table,
269 };
270
271 /* module stuff */
272 static int __init gp8psk_usb_module_init(void)
273 {
274         int result;
275         if ((result = usb_register(&gp8psk_usb_driver))) {
276                 err("usb_register failed. (%d)",result);
277                 return result;
278         }
279
280         return 0;
281 }
282
283 static void __exit gp8psk_usb_module_exit(void)
284 {
285         /* deregister this driver from the USB subsystem */
286         usb_deregister(&gp8psk_usb_driver);
287 }
288
289 module_init(gp8psk_usb_module_init);
290 module_exit(gp8psk_usb_module_exit);
291
292 MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
293 MODULE_DESCRIPTION("Driver for Genpix 8psk-to-USB2 DVB-S");
294 MODULE_VERSION("1.1");
295 MODULE_LICENSE("GPL");