radio-sf16fmr2.c (b29e2679d0da91c60d3ac190d9c3bd65ac2f68c5) radio-sf16fmr2.c (3491a88ea0499cb10024cf7ec4d2d261634fa2b7)
1/* SF16-FMR2 radio driver for Linux
1/* SF16-FMR2 and SF16-FMD2 radio driver for Linux
2 * Copyright (c) 2011 Ondrej Zary
3 *
4 * Original driver was (c) 2000-2002 Ziglio Frediano, freddy77@angelfire.com
5 * but almost nothing remained here after conversion to generic TEA575x
6 * implementation
7 */
8
9#include <linux/delay.h>
10#include <linux/module.h> /* Modules */
11#include <linux/init.h> /* Initdata */
12#include <linux/slab.h>
13#include <linux/ioport.h> /* request_region */
14#include <linux/io.h> /* outb, outb_p */
15#include <linux/isa.h>
2 * Copyright (c) 2011 Ondrej Zary
3 *
4 * Original driver was (c) 2000-2002 Ziglio Frediano, freddy77@angelfire.com
5 * but almost nothing remained here after conversion to generic TEA575x
6 * implementation
7 */
8
9#include <linux/delay.h>
10#include <linux/module.h> /* Modules */
11#include <linux/init.h> /* Initdata */
12#include <linux/slab.h>
13#include <linux/ioport.h> /* request_region */
14#include <linux/io.h> /* outb, outb_p */
15#include <linux/isa.h>
16#include <linux/pnp.h>
16#include <sound/tea575x-tuner.h>
17
18MODULE_AUTHOR("Ondrej Zary");
17#include <sound/tea575x-tuner.h>
18
19MODULE_AUTHOR("Ondrej Zary");
19MODULE_DESCRIPTION("MediaForte SF16-FMR2 FM radio card driver");
20MODULE_DESCRIPTION("MediaForte SF16-FMR2 and SF16-FMD2 FM radio card driver");
20MODULE_LICENSE("GPL");
21
21MODULE_LICENSE("GPL");
22
22static int radio_nr = -1;
23module_param(radio_nr, int, 0444);
24MODULE_PARM_DESC(radio_nr, "Radio device number");
23/* these cards can only use two different ports (0x384 and 0x284) */
24#define FMR2_MAX 2
25
25
26static int radio_nr[FMR2_MAX] = { [0 ... (FMR2_MAX - 1)] = -1 };
27module_param_array(radio_nr, int, NULL, 0444);
28MODULE_PARM_DESC(radio_nr, "Radio device numbers");
29
26struct fmr2 {
27 int io;
28 struct v4l2_device v4l2_dev;
29 struct snd_tea575x tea;
30 struct v4l2_ctrl *volume;
31 struct v4l2_ctrl *balance;
30struct fmr2 {
31 int io;
32 struct v4l2_device v4l2_dev;
33 struct snd_tea575x tea;
34 struct v4l2_ctrl *volume;
35 struct v4l2_ctrl *balance;
36 bool is_fmd2;
32};
33
37};
38
34/* the port is hardwired so no need to support multiple cards */
39static int num_fmr2_cards;
40static struct fmr2 *fmr2_cards[FMR2_MAX];
41static bool isa_registered;
42static bool pnp_registered;
43
44/* the port is hardwired on SF16-FMR2 */
35#define FMR2_PORT 0x384
36
37/* TEA575x tuner pins */
38#define STR_DATA (1 << 0)
39#define STR_CLK (1 << 1)
40#define STR_WREN (1 << 2)
41#define STR_MOST (1 << 3)
42/* PT2254A/TC9154A volume control pins */

--- 126 unchanged lines hidden (view full) ---

169static const struct v4l2_ctrl_ops fmr2_ctrl_ops = {
170 .s_ctrl = fmr2_s_ctrl,
171};
172
173static int fmr2_tea_ext_init(struct snd_tea575x *tea)
174{
175 struct fmr2 *fmr2 = tea->private_data;
176
45#define FMR2_PORT 0x384
46
47/* TEA575x tuner pins */
48#define STR_DATA (1 << 0)
49#define STR_CLK (1 << 1)
50#define STR_WREN (1 << 2)
51#define STR_MOST (1 << 3)
52/* PT2254A/TC9154A volume control pins */

--- 126 unchanged lines hidden (view full) ---

179static const struct v4l2_ctrl_ops fmr2_ctrl_ops = {
180 .s_ctrl = fmr2_s_ctrl,
181};
182
183static int fmr2_tea_ext_init(struct snd_tea575x *tea)
184{
185 struct fmr2 *fmr2 = tea->private_data;
186
177 if (inb(fmr2->io) & FMR2_HASVOL) {
187 /* FMR2 can have volume control, FMD2 can't (uses SB16 mixer) */
188 if (!fmr2->is_fmd2 && inb(fmr2->io) & FMR2_HASVOL) {
178 fmr2->volume = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_VOLUME, 0, 68, 2, 56);
179 fmr2->balance = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_BALANCE, -68, 68, 2, 0);
180 if (tea->ctrl_handler.error) {
181 printk(KERN_ERR "radio-sf16fmr2: can't initialize controls\n");
182 return tea->ctrl_handler.error;
183 }
184 }
185
186 return 0;
187}
188
189 fmr2->volume = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_VOLUME, 0, 68, 2, 56);
190 fmr2->balance = v4l2_ctrl_new_std(&tea->ctrl_handler, &fmr2_ctrl_ops, V4L2_CID_AUDIO_BALANCE, -68, 68, 2, 0);
191 if (tea->ctrl_handler.error) {
192 printk(KERN_ERR "radio-sf16fmr2: can't initialize controls\n");
193 return tea->ctrl_handler.error;
194 }
195 }
196
197 return 0;
198}
199
189static int __devinit fmr2_probe(struct device *pdev, unsigned int dev)
200static struct pnp_device_id fmr2_pnp_ids[] __devinitdata = {
201 { .id = "MFRad13" }, /* tuner subdevice of SF16-FMD2 */
202 { .id = "" }
203};
204MODULE_DEVICE_TABLE(pnp, fmr2_pnp_ids);
205
206static int __devinit fmr2_probe(struct fmr2 *fmr2, struct device *pdev, int io)
190{
207{
191 struct fmr2 *fmr2;
192 int err;
208 int err, i;
209 char *card_name = fmr2->is_fmd2 ? "SF16-FMD2" : "SF16-FMR2";
193
210
194 fmr2 = kzalloc(sizeof(*fmr2), GFP_KERNEL);
195 if (fmr2 == NULL)
196 return -ENOMEM;
211 /* avoid errors if a card was already registered at given port */
212 for (i = 0; i < num_fmr2_cards; i++)
213 if (io == fmr2_cards[i]->io)
214 return -EBUSY;
197
215
198 strlcpy(fmr2->v4l2_dev.name, dev_name(pdev),
199 sizeof(fmr2->v4l2_dev.name));
200 fmr2->io = FMR2_PORT;
216 strlcpy(fmr2->v4l2_dev.name, "radio-sf16fmr2",
217 sizeof(fmr2->v4l2_dev.name)),
218 fmr2->io = io;
201
202 if (!request_region(fmr2->io, 2, fmr2->v4l2_dev.name)) {
203 printk(KERN_ERR "radio-sf16fmr2: I/O port 0x%x already in use\n", fmr2->io);
219
220 if (!request_region(fmr2->io, 2, fmr2->v4l2_dev.name)) {
221 printk(KERN_ERR "radio-sf16fmr2: I/O port 0x%x already in use\n", fmr2->io);
204 kfree(fmr2);
205 return -EBUSY;
206 }
207
208 dev_set_drvdata(pdev, fmr2);
209 err = v4l2_device_register(pdev, &fmr2->v4l2_dev);
210 if (err < 0) {
211 v4l2_err(&fmr2->v4l2_dev, "Could not register v4l2_device\n");
212 release_region(fmr2->io, 2);
222 return -EBUSY;
223 }
224
225 dev_set_drvdata(pdev, fmr2);
226 err = v4l2_device_register(pdev, &fmr2->v4l2_dev);
227 if (err < 0) {
228 v4l2_err(&fmr2->v4l2_dev, "Could not register v4l2_device\n");
229 release_region(fmr2->io, 2);
213 kfree(fmr2);
214 return err;
215 }
216 fmr2->tea.v4l2_dev = &fmr2->v4l2_dev;
217 fmr2->tea.private_data = fmr2;
230 return err;
231 }
232 fmr2->tea.v4l2_dev = &fmr2->v4l2_dev;
233 fmr2->tea.private_data = fmr2;
218 fmr2->tea.radio_nr = radio_nr;
234 fmr2->tea.radio_nr = radio_nr[num_fmr2_cards];
219 fmr2->tea.ops = &fmr2_tea_ops;
220 fmr2->tea.ext_init = fmr2_tea_ext_init;
235 fmr2->tea.ops = &fmr2_tea_ops;
236 fmr2->tea.ext_init = fmr2_tea_ext_init;
221 strlcpy(fmr2->tea.card, "SF16-FMR2", sizeof(fmr2->tea.card));
222 snprintf(fmr2->tea.bus_info, sizeof(fmr2->tea.bus_info), "ISA:%s",
223 fmr2->v4l2_dev.name);
237 strlcpy(fmr2->tea.card, card_name, sizeof(fmr2->tea.card));
238 snprintf(fmr2->tea.bus_info, sizeof(fmr2->tea.bus_info), "%s:%s",
239 fmr2->is_fmd2 ? "PnP" : "ISA", dev_name(pdev));
224
225 if (snd_tea575x_init(&fmr2->tea)) {
226 printk(KERN_ERR "radio-sf16fmr2: Unable to detect TEA575x tuner\n");
227 release_region(fmr2->io, 2);
240
241 if (snd_tea575x_init(&fmr2->tea)) {
242 printk(KERN_ERR "radio-sf16fmr2: Unable to detect TEA575x tuner\n");
243 release_region(fmr2->io, 2);
228 kfree(fmr2);
229 return -ENODEV;
230 }
231
244 return -ENODEV;
245 }
246
232 printk(KERN_INFO "radio-sf16fmr2: SF16-FMR2 radio card at 0x%x.\n", fmr2->io);
247 printk(KERN_INFO "radio-sf16fmr2: %s radio card at 0x%x.\n",
248 card_name, fmr2->io);
233 return 0;
234}
235
249 return 0;
250}
251
236static int __exit fmr2_remove(struct device *pdev, unsigned int dev)
252static int __devinit fmr2_isa_match(struct device *pdev, unsigned int ndev)
237{
253{
238 struct fmr2 *fmr2 = dev_get_drvdata(pdev);
254 struct fmr2 *fmr2 = kzalloc(sizeof(*fmr2), GFP_KERNEL);
255 if (!fmr2)
256 return 0;
239
257
258 if (fmr2_probe(fmr2, pdev, FMR2_PORT)) {
259 kfree(fmr2);
260 return 0;
261 }
262 dev_set_drvdata(pdev, fmr2);
263 fmr2_cards[num_fmr2_cards++] = fmr2;
264
265 return 1;
266}
267
268static int __devinit fmr2_pnp_probe(struct pnp_dev *pdev,
269 const struct pnp_device_id *id)
270{
271 int ret;
272 struct fmr2 *fmr2 = kzalloc(sizeof(*fmr2), GFP_KERNEL);
273 if (!fmr2)
274 return -ENOMEM;
275
276 fmr2->is_fmd2 = true;
277 ret = fmr2_probe(fmr2, &pdev->dev, pnp_port_start(pdev, 0));
278 if (ret) {
279 kfree(fmr2);
280 return ret;
281 }
282 pnp_set_drvdata(pdev, fmr2);
283 fmr2_cards[num_fmr2_cards++] = fmr2;
284
285 return 0;
286}
287
288static void __devexit fmr2_remove(struct fmr2 *fmr2)
289{
240 snd_tea575x_exit(&fmr2->tea);
241 release_region(fmr2->io, 2);
242 v4l2_device_unregister(&fmr2->v4l2_dev);
243 kfree(fmr2);
290 snd_tea575x_exit(&fmr2->tea);
291 release_region(fmr2->io, 2);
292 v4l2_device_unregister(&fmr2->v4l2_dev);
293 kfree(fmr2);
294}
295
296static int __devexit fmr2_isa_remove(struct device *pdev, unsigned int ndev)
297{
298 fmr2_remove(dev_get_drvdata(pdev));
299 dev_set_drvdata(pdev, NULL);
300
244 return 0;
245}
246
301 return 0;
302}
303
247struct isa_driver fmr2_driver = {
248 .probe = fmr2_probe,
249 .remove = fmr2_remove,
304static void __devexit fmr2_pnp_remove(struct pnp_dev *pdev)
305{
306 fmr2_remove(pnp_get_drvdata(pdev));
307 pnp_set_drvdata(pdev, NULL);
308}
309
310struct isa_driver fmr2_isa_driver = {
311 .match = fmr2_isa_match,
312 .remove = __devexit_p(fmr2_isa_remove),
250 .driver = {
251 .name = "radio-sf16fmr2",
252 },
253};
254
313 .driver = {
314 .name = "radio-sf16fmr2",
315 },
316};
317
318struct pnp_driver fmr2_pnp_driver = {
319 .name = "radio-sf16fmr2",
320 .id_table = fmr2_pnp_ids,
321 .probe = fmr2_pnp_probe,
322 .remove = __devexit_p(fmr2_pnp_remove),
323};
324
255static int __init fmr2_init(void)
256{
325static int __init fmr2_init(void)
326{
257 return isa_register_driver(&fmr2_driver, 1);
327 int ret;
328
329 ret = pnp_register_driver(&fmr2_pnp_driver);
330 if (!ret)
331 pnp_registered = true;
332 ret = isa_register_driver(&fmr2_isa_driver, 1);
333 if (!ret)
334 isa_registered = true;
335
336 return (pnp_registered || isa_registered) ? 0 : ret;
258}
259
260static void __exit fmr2_exit(void)
261{
337}
338
339static void __exit fmr2_exit(void)
340{
262 isa_unregister_driver(&fmr2_driver);
341 if (pnp_registered)
342 pnp_unregister_driver(&fmr2_pnp_driver);
343 if (isa_registered)
344 isa_unregister_driver(&fmr2_isa_driver);
263}
264
265module_init(fmr2_init);
266module_exit(fmr2_exit);
345}
346
347module_init(fmr2_init);
348module_exit(fmr2_exit);