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path: root/drivers/media/radio/radio-sf16fmr2.c
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-rw-r--r--drivers/media/radio/radio-sf16fmr2.c531
1 files changed, 143 insertions, 388 deletions
diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c
index 87bad7678d9..2dd485996ba 100644
--- a/drivers/media/radio/radio-sf16fmr2.c
+++ b/drivers/media/radio/radio-sf16fmr2.c
@@ -1,441 +1,209 @@
1/* SF16FMR2 radio driver for Linux radio support 1/* SF16-FMR2 radio driver for Linux
2 * heavily based on fmi driver... 2 * Copyright (c) 2011 Ondrej Zary
3 * (c) 2000-2002 Ziglio Frediano, freddy77@angelfire.com
4 * 3 *
5 * Notes on the hardware 4 * Original driver was (c) 2000-2002 Ziglio Frediano, freddy77@angelfire.com
6 * 5 * but almost nothing remained here after conversion to generic TEA575x
7 * Frequency control is done digitally -- ie out(port,encodefreq(95.8)); 6 * implementation
8 * No volume control - only mute/unmute - you have to use line volume
9 *
10 * For read stereo/mono you must wait 0.1 sec after set frequency and
11 * card unmuted so I set frequency on unmute
12 * Signal handling seem to work only on autoscanning (not implemented)
13 *
14 * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
15 */ 7 */
16 8
9#include <linux/delay.h>
17#include <linux/module.h> /* Modules */ 10#include <linux/module.h> /* Modules */
18#include <linux/init.h> /* Initdata */ 11#include <linux/init.h> /* Initdata */
19#include <linux/ioport.h> /* request_region */ 12#include <linux/ioport.h> /* request_region */
20#include <linux/delay.h> /* udelay */
21#include <linux/videodev2.h> /* kernel radio structs */
22#include <linux/mutex.h>
23#include <linux/version.h> /* for KERNEL_VERSION MACRO */
24#include <linux/io.h> /* outb, outb_p */ 13#include <linux/io.h> /* outb, outb_p */
25#include <media/v4l2-device.h> 14#include <sound/tea575x-tuner.h>
26#include <media/v4l2-ioctl.h>
27 15
28MODULE_AUTHOR("Ziglio Frediano, freddy77@angelfire.com"); 16MODULE_AUTHOR("Ondrej Zary");
29MODULE_DESCRIPTION("A driver for the SF16FMR2 radio."); 17MODULE_DESCRIPTION("MediaForte SF16-FMR2 FM radio card driver");
30MODULE_LICENSE("GPL"); 18MODULE_LICENSE("GPL");
31 19
32static int io = 0x384; 20struct fmr2 {
33static int radio_nr = -1;
34
35module_param(io, int, 0);
36MODULE_PARM_DESC(io, "I/O address of the SF16FMR2 card (should be 0x384, if do not work try 0x284)");
37module_param(radio_nr, int, 0);
38
39#define RADIO_VERSION KERNEL_VERSION(0,0,2)
40
41#define AUD_VOL_INDEX 1
42
43#undef DEBUG
44//#define DEBUG 1
45
46#ifdef DEBUG
47# define debug_print(s) printk s
48#else
49# define debug_print(s)
50#endif
51
52/* this should be static vars for module size */
53struct fmr2
54{
55 struct v4l2_device v4l2_dev;
56 struct video_device vdev;
57 struct mutex lock;
58 int io; 21 int io;
59 int curvol; /* 0-15 */ 22 struct snd_tea575x tea;
60 int mute; 23 struct v4l2_ctrl *volume;
61 int stereo; /* card is producing stereo audio */ 24 struct v4l2_ctrl *balance;
62 unsigned long curfreq; /* freq in kHz */
63 int card_type;
64}; 25};
65 26
27/* the port is hardwired so no need to support multiple cards */
28#define FMR2_PORT 0x384
66static struct fmr2 fmr2_card; 29static struct fmr2 fmr2_card;
67 30
68/* hw precision is 12.5 kHz 31/* TEA575x tuner pins */
69 * It is only useful to give freq in interval of 200 (=0.0125Mhz), 32#define STR_DATA (1 << 0)
70 * other bits will be truncated 33#define STR_CLK (1 << 1)
71 */ 34#define STR_WREN (1 << 2)
72#define RSF16_ENCODE(x) ((x) / 200 + 856) 35#define STR_MOST (1 << 3)
73#define RSF16_MINFREQ (87 * 16000) 36/* PT2254A/TC9154A volume control pins */
74#define RSF16_MAXFREQ (108 * 16000) 37#define PT_ST (1 << 4)
75 38#define PT_CK (1 << 5)
76static inline void wait(int n, int io) 39#define PT_DATA (1 << 6)
77{ 40/* volume control presence pin */
78 for (; n; --n) 41#define FMR2_HASVOL (1 << 7)
79 inb(io);
80}
81
82static void outbits(int bits, unsigned int data, int nWait, int io)
83{
84 int bit;
85
86 for (; --bits >= 0;) {
87 bit = (data >> bits) & 1;
88 outb(bit, io);
89 wait(nWait, io);
90 outb(bit | 2, io);
91 wait(nWait, io);
92 outb(bit, io);
93 wait(nWait, io);
94 }
95}
96
97static inline void fmr2_mute(int io)
98{
99 outb(0x00, io);
100 wait(4, io);
101}
102
103static inline void fmr2_unmute(int io)
104{
105 outb(0x04, io);
106 wait(4, io);
107}
108
109static inline int fmr2_stereo_mode(int io)
110{
111 int n = inb(io);
112
113 outb(6, io);
114 inb(io);
115 n = ((n >> 3) & 1) ^ 1;
116 debug_print((KERN_DEBUG "stereo: %d\n", n));
117 return n;
118}
119
120static int fmr2_product_info(struct fmr2 *dev)
121{
122 int n = inb(dev->io);
123
124 n &= 0xC1;
125 if (n == 0) {
126 /* this should support volume set */
127 dev->card_type = 12;
128 return 0;
129 }
130 /* not volume (mine is 11) */
131 dev->card_type = (n == 128) ? 11 : 0;
132 return n;
133}
134 42
135static inline int fmr2_getsigstr(struct fmr2 *dev) 43static void fmr2_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
136{ 44{
137 /* !!! works only if scanning freq */ 45 struct fmr2 *fmr2 = tea->private_data;
138 int res = 0xffff; 46 u8 bits = 0;
139
140 outb(5, dev->io);
141 wait(4, dev->io);
142 if (!(inb(dev->io) & 1))
143 res = 0;
144 debug_print((KERN_DEBUG "signal: %d\n", res));
145 return res;
146}
147
148/* set frequency and unmute card */
149static int fmr2_setfreq(struct fmr2 *dev)
150{
151 unsigned long freq = dev->curfreq;
152
153 fmr2_mute(dev->io);
154
155 /* 0x42 for mono output
156 * 0x102 forward scanning
157 * 0x182 scansione avanti
158 */
159 outbits(9, 0x2, 3, dev->io);
160 outbits(16, RSF16_ENCODE(freq), 2, dev->io);
161
162 fmr2_unmute(dev->io);
163 47
164 /* wait 0.11 sec */ 48 bits |= (pins & TEA575X_DATA) ? STR_DATA : 0;
165 msleep(110); 49 bits |= (pins & TEA575X_CLK) ? STR_CLK : 0;
50 /* WRITE_ENABLE is inverted, DATA must be high during read */
51 bits |= (pins & TEA575X_WREN) ? 0 : STR_WREN | STR_DATA;
166 52
167 /* NOTE if mute this stop radio 53 outb(bits, fmr2->io);
168 you must set freq on unmute */
169 dev->stereo = fmr2_stereo_mode(dev->io);
170 return 0;
171}
172
173/* !!! not tested, in my card this doesn't work !!! */
174static int fmr2_setvolume(struct fmr2 *dev)
175{
176 int vol[16] = { 0x021, 0x084, 0x090, 0x104,
177 0x110, 0x204, 0x210, 0x402,
178 0x404, 0x408, 0x410, 0x801,
179 0x802, 0x804, 0x808, 0x810 };
180 int i, a;
181 int n = vol[dev->curvol & 0x0f];
182
183 if (dev->card_type != 11)
184 return 1;
185
186 for (i = 12; --i >= 0; ) {
187 a = ((n >> i) & 1) << 6; /* if (a==0) a = 0; else a = 0x40; */
188 outb(a | 4, dev->io);
189 wait(4, dev->io);
190 outb(a | 0x24, dev->io);
191 wait(4, dev->io);
192 outb(a | 4, dev->io);
193 wait(4, dev->io);
194 }
195 for (i = 6; --i >= 0; ) {
196 a = ((0x18 >> i) & 1) << 6;
197 outb(a | 4, dev->io);
198 wait(4, dev->io);
199 outb(a | 0x24, dev->io);
200 wait(4, dev->io);
201 outb(a | 4, dev->io);
202 wait(4, dev->io);
203 }
204 wait(4, dev->io);
205 outb(0x14, dev->io);
206 return 0;
207} 54}
208 55
209static int vidioc_querycap(struct file *file, void *priv, 56static u8 fmr2_tea575x_get_pins(struct snd_tea575x *tea)
210 struct v4l2_capability *v)
211{ 57{
212 strlcpy(v->driver, "radio-sf16fmr2", sizeof(v->driver)); 58 struct fmr2 *fmr2 = tea->private_data;
213 strlcpy(v->card, "SF16-FMR2 radio", sizeof(v->card)); 59 u8 bits = inb(fmr2->io);
214 strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
215 v->version = RADIO_VERSION;
216 v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
217 return 0;
218}
219
220static int vidioc_g_tuner(struct file *file, void *priv,
221 struct v4l2_tuner *v)
222{
223 struct fmr2 *fmr2 = video_drvdata(file);
224
225 if (v->index > 0)
226 return -EINVAL;
227 60
228 strlcpy(v->name, "FM", sizeof(v->name)); 61 return (bits & STR_DATA) ? TEA575X_DATA : 0 |
229 v->type = V4L2_TUNER_RADIO; 62 (bits & STR_MOST) ? TEA575X_MOST : 0;
230
231 v->rangelow = RSF16_MINFREQ;
232 v->rangehigh = RSF16_MAXFREQ;
233 v->rxsubchans = fmr2->stereo ? V4L2_TUNER_SUB_STEREO :
234 V4L2_TUNER_SUB_MONO;
235 v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
236 v->audmode = V4L2_TUNER_MODE_STEREO;
237 mutex_lock(&fmr2->lock);
238 v->signal = fmr2_getsigstr(fmr2);
239 mutex_unlock(&fmr2->lock);
240 return 0;
241} 63}
242 64
243static int vidioc_s_tuner(struct file *file, void *priv, 65static void fmr2_tea575x_set_direction(struct snd_tea575x *tea, bool output)
244 struct v4l2_tuner *v)
245{ 66{
246 return v->index ? -EINVAL : 0;
247} 67}
248 68
249static int vidioc_s_frequency(struct file *file, void *priv, 69static struct snd_tea575x_ops fmr2_tea_ops = {
250 struct v4l2_frequency *f) 70 .set_pins = fmr2_tea575x_set_pins,
251{ 71 .get_pins = fmr2_tea575x_get_pins,
252 struct fmr2 *fmr2 = video_drvdata(file); 72 .set_direction = fmr2_tea575x_set_direction,
73};
253 74
254 if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) 75/* TC9154A/PT2254A volume control */
255 return -EINVAL; 76
256 if (f->frequency < RSF16_MINFREQ || 77/* 18-bit shift register bit definitions */
257 f->frequency > RSF16_MAXFREQ) 78#define TC9154A_ATT_MAJ_0DB (1 << 0)
258 return -EINVAL; 79#define TC9154A_ATT_MAJ_10DB (1 << 1)
259 /* rounding in steps of 200 to match the freq 80#define TC9154A_ATT_MAJ_20DB (1 << 2)
260 that will be used */ 81#define TC9154A_ATT_MAJ_30DB (1 << 3)
261 fmr2->curfreq = (f->frequency / 200) * 200; 82#define TC9154A_ATT_MAJ_40DB (1 << 4)
262 83#define TC9154A_ATT_MAJ_50DB (1 << 5)
263 /* set card freq (if not muted) */ 84#define TC9154A_ATT_MAJ_60DB (1 << 6)
264 if (fmr2->curvol && !fmr2->mute) { 85
265 mutex_lock(&fmr2->lock); 86#define TC9154A_ATT_MIN_0DB (1 << 7)
266 fmr2_setfreq(fmr2); 87#define TC9154A_ATT_MIN_2DB (1 << 8)
267 mutex_unlock(&fmr2->lock); 88#define TC9154A_ATT_MIN_4DB (1 << 9)
89#define TC9154A_ATT_MIN_6DB (1 << 10)
90#define TC9154A_ATT_MIN_8DB (1 << 11)
91/* bit 12 is ignored */
92#define TC9154A_CHANNEL_LEFT (1 << 13)
93#define TC9154A_CHANNEL_RIGHT (1 << 14)
94/* bits 15, 16, 17 must be 0 */
95
96#define TC9154A_ATT_MAJ(x) (1 << x)
97#define TC9154A_ATT_MIN(x) (1 << (7 + x))
98
99static void tc9154a_set_pins(struct fmr2 *fmr2, u8 pins)
100{
101 if (!fmr2->tea.mute)
102 pins |= STR_WREN;
103
104 outb(pins, fmr2->io);
105}
106
107static void tc9154a_set_attenuation(struct fmr2 *fmr2, int att, u32 channel)
108{
109 int i;
110 u32 reg;
111 u8 bit;
112
113 reg = TC9154A_ATT_MAJ(att / 10) | TC9154A_ATT_MIN((att % 10) / 2);
114 reg |= channel;
115 /* write 18-bit shift register, LSB first */
116 for (i = 0; i < 18; i++) {
117 bit = reg & (1 << i) ? PT_DATA : 0;
118 tc9154a_set_pins(fmr2, bit);
119 udelay(5);
120 tc9154a_set_pins(fmr2, bit | PT_CK);
121 udelay(5);
122 tc9154a_set_pins(fmr2, bit);
268 } 123 }
269 return 0;
270}
271
272static int vidioc_g_frequency(struct file *file, void *priv,
273 struct v4l2_frequency *f)
274{
275 struct fmr2 *fmr2 = video_drvdata(file);
276
277 if (f->tuner != 0)
278 return -EINVAL;
279 f->type = V4L2_TUNER_RADIO;
280 f->frequency = fmr2->curfreq;
281 return 0;
282}
283 124
284static int vidioc_queryctrl(struct file *file, void *priv, 125 /* latch register data */
285 struct v4l2_queryctrl *qc) 126 udelay(5);
286{ 127 tc9154a_set_pins(fmr2, PT_ST);
287 struct fmr2 *fmr2 = video_drvdata(file); 128 udelay(5);
288 129 tc9154a_set_pins(fmr2, 0);
289 switch (qc->id) {
290 case V4L2_CID_AUDIO_MUTE:
291 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
292 case V4L2_CID_AUDIO_VOLUME:
293 /* Only card_type == 11 implements volume */
294 if (fmr2->card_type == 11)
295 return v4l2_ctrl_query_fill(qc, 0, 15, 1, 0);
296 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
297 }
298 return -EINVAL;
299} 130}
300 131
301static int vidioc_g_ctrl(struct file *file, void *priv, 132static int fmr2_s_ctrl(struct v4l2_ctrl *ctrl)
302 struct v4l2_control *ctrl)
303{ 133{
304 struct fmr2 *fmr2 = video_drvdata(file); 134 struct snd_tea575x *tea = container_of(ctrl->handler, struct snd_tea575x, ctrl_handler);
135 struct fmr2 *fmr2 = tea->private_data;
136 int volume, balance, left, right;
305 137
306 switch (ctrl->id) { 138 switch (ctrl->id) {
307 case V4L2_CID_AUDIO_MUTE:
308 ctrl->value = fmr2->mute;
309 return 0;
310 case V4L2_CID_AUDIO_VOLUME: 139 case V4L2_CID_AUDIO_VOLUME:
311 ctrl->value = fmr2->curvol; 140 volume = ctrl->val;
312 return 0; 141 balance = fmr2->balance->cur.val;
313 }
314 return -EINVAL;
315}
316
317static int vidioc_s_ctrl(struct file *file, void *priv,
318 struct v4l2_control *ctrl)
319{
320 struct fmr2 *fmr2 = video_drvdata(file);
321
322 switch (ctrl->id) {
323 case V4L2_CID_AUDIO_MUTE:
324 fmr2->mute = ctrl->value;
325 break; 142 break;
326 case V4L2_CID_AUDIO_VOLUME: 143 case V4L2_CID_AUDIO_BALANCE:
327 fmr2->curvol = ctrl->value; 144 balance = ctrl->val;
145 volume = fmr2->volume->cur.val;
328 break; 146 break;
329 default: 147 default:
330 return -EINVAL; 148 return -EINVAL;
331 } 149 }
332 150
333#ifdef DEBUG 151 left = right = volume;
334 if (fmr2->curvol && !fmr2->mute) 152 if (balance < 0)
335 printk(KERN_DEBUG "unmute\n"); 153 right = max(0, right + balance);
336 else 154 if (balance > 0)
337 printk(KERN_DEBUG "mute\n"); 155 left = max(0, left - balance);
338#endif
339
340 mutex_lock(&fmr2->lock);
341 if (fmr2->curvol && !fmr2->mute) {
342 fmr2_setvolume(fmr2);
343 /* Set frequency and unmute card */
344 fmr2_setfreq(fmr2);
345 } else
346 fmr2_mute(fmr2->io);
347 mutex_unlock(&fmr2->lock);
348 return 0;
349}
350
351static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
352{
353 *i = 0;
354 return 0;
355}
356 156
357static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) 157 tc9154a_set_attenuation(fmr2, abs(left - 68), TC9154A_CHANNEL_LEFT);
358{ 158 tc9154a_set_attenuation(fmr2, abs(right - 68), TC9154A_CHANNEL_RIGHT);
359 return i ? -EINVAL : 0;
360}
361 159
362static int vidioc_g_audio(struct file *file, void *priv,
363 struct v4l2_audio *a)
364{
365 a->index = 0;
366 strlcpy(a->name, "Radio", sizeof(a->name));
367 a->capability = V4L2_AUDCAP_STEREO;
368 return 0; 160 return 0;
369} 161}
370 162
371static int vidioc_s_audio(struct file *file, void *priv, 163static const struct v4l2_ctrl_ops fmr2_ctrl_ops = {
372 struct v4l2_audio *a) 164 .s_ctrl = fmr2_s_ctrl,
165};
166
167static int fmr2_tea_ext_init(struct snd_tea575x *tea)
373{ 168{
374 return a->index ? -EINVAL : 0; 169 struct fmr2 *fmr2 = tea->private_data;
375}
376 170
377static const struct v4l2_file_operations fmr2_fops = { 171 if (inb(fmr2->io) & FMR2_HASVOL) {
378 .owner = THIS_MODULE, 172 fmr2->volume = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_VOLUME, 0, 68, 2, 56);
379 .unlocked_ioctl = video_ioctl2, 173 fmr2->balance = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_BALANCE, -68, 68, 2, 0);
380}; 174 if (tea->ctrl_handler.error) {
175 printk(KERN_ERR "radio-sf16fmr2: can't initialize contrls\n");
176 return tea->ctrl_handler.error;
177 }
178 }
381 179
382static const struct v4l2_ioctl_ops fmr2_ioctl_ops = { 180 return 0;
383 .vidioc_querycap = vidioc_querycap, 181}
384 .vidioc_g_tuner = vidioc_g_tuner,
385 .vidioc_s_tuner = vidioc_s_tuner,
386 .vidioc_g_audio = vidioc_g_audio,
387 .vidioc_s_audio = vidioc_s_audio,
388 .vidioc_g_input = vidioc_g_input,
389 .vidioc_s_input = vidioc_s_input,
390 .vidioc_g_frequency = vidioc_g_frequency,
391 .vidioc_s_frequency = vidioc_s_frequency,
392 .vidioc_queryctrl = vidioc_queryctrl,
393 .vidioc_g_ctrl = vidioc_g_ctrl,
394 .vidioc_s_ctrl = vidioc_s_ctrl,
395};
396 182
397static int __init fmr2_init(void) 183static int __init fmr2_init(void)
398{ 184{
399 struct fmr2 *fmr2 = &fmr2_card; 185 struct fmr2 *fmr2 = &fmr2_card;
400 struct v4l2_device *v4l2_dev = &fmr2->v4l2_dev;
401 int res;
402 186
403 strlcpy(v4l2_dev->name, "sf16fmr2", sizeof(v4l2_dev->name)); 187 fmr2->io = FMR2_PORT;
404 fmr2->io = io;
405 fmr2->stereo = 1;
406 mutex_init(&fmr2->lock);
407 188
408 if (!request_region(fmr2->io, 2, "sf16fmr2")) { 189 if (!request_region(fmr2->io, 2, "SF16-FMR2")) {
409 v4l2_err(v4l2_dev, "request_region failed!\n"); 190 printk(KERN_ERR "radio-sf16fmr2: I/O port 0x%x already in use\n", fmr2->io);
410 return -EBUSY; 191 return -EBUSY;
411 } 192 }
412 193
413 res = v4l2_device_register(NULL, v4l2_dev); 194 fmr2->tea.private_data = fmr2;
414 if (res < 0) { 195 fmr2->tea.ops = &fmr2_tea_ops;
415 release_region(fmr2->io, 2); 196 fmr2->tea.ext_init = fmr2_tea_ext_init;
416 v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); 197 strlcpy(fmr2->tea.card, "SF16-FMR2", sizeof(fmr2->tea.card));
417 return res; 198 strcpy(fmr2->tea.bus_info, "ISA");
418 }
419 199
420 strlcpy(fmr2->vdev.name, v4l2_dev->name, sizeof(fmr2->vdev.name)); 200 if (snd_tea575x_init(&fmr2->tea)) {
421 fmr2->vdev.v4l2_dev = v4l2_dev; 201 printk(KERN_ERR "radio-sf16fmr2: Unable to detect TEA575x tuner\n");
422 fmr2->vdev.fops = &fmr2_fops;
423 fmr2->vdev.ioctl_ops = &fmr2_ioctl_ops;
424 fmr2->vdev.release = video_device_release_empty;
425 video_set_drvdata(&fmr2->vdev, fmr2);
426
427 /* mute card - prevents noisy bootups */
428 fmr2_mute(fmr2->io);
429 fmr2_product_info(fmr2);
430
431 if (video_register_device(&fmr2->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
432 v4l2_device_unregister(v4l2_dev);
433 release_region(fmr2->io, 2); 202 release_region(fmr2->io, 2);
434 return -EINVAL; 203 return -ENODEV;
435 } 204 }
436 205
437 v4l2_info(v4l2_dev, "SF16FMR2 radio card driver at 0x%x.\n", fmr2->io); 206 printk(KERN_INFO "radio-sf16fmr2: SF16-FMR2 radio card at 0x%x.\n", fmr2->io);
438 debug_print((KERN_DEBUG "card_type %d\n", fmr2->card_type));
439 return 0; 207 return 0;
440} 208}
441 209
@@ -443,22 +211,9 @@ static void __exit fmr2_exit(void)
443{ 211{
444 struct fmr2 *fmr2 = &fmr2_card; 212 struct fmr2 *fmr2 = &fmr2_card;
445 213
446 video_unregister_device(&fmr2->vdev); 214 snd_tea575x_exit(&fmr2->tea);
447 v4l2_device_unregister(&fmr2->v4l2_dev);
448 release_region(fmr2->io, 2); 215 release_region(fmr2->io, 2);
449} 216}
450 217
451module_init(fmr2_init); 218module_init(fmr2_init);
452module_exit(fmr2_exit); 219module_exit(fmr2_exit);
453
454#ifndef MODULE
455
456static int __init fmr2_setup_io(char *str)
457{
458 get_option(&str, &io);
459 return 1;
460}
461
462__setup("sf16fmr2=", fmr2_setup_io);
463
464#endif