radio-sf16fmi.c (a3a9e287daa1f299e318161b790b1c5902b1d869) radio-sf16fmi.c (4b8303747474033d6d73828607eafab77c620d96)
1/* SF16FMI radio driver for Linux radio support
1/* SF16-FMI and SF16-FMP radio driver for Linux radio support
2 * heavily based on rtrack driver...
3 * (c) 1997 M. Kirkwood
4 * (c) 1998 Petr Vandrovec, vandrove@vc.cvut.cz
5 *
6 * Fitted to new interface by Alan Cox <alan@lxorguk.ukuu.org.uk>
7 * Made working and cleaned up functions <mikael.hedin@irf.se>
8 * Support for ISAPnP by Ladislav Michl <ladis@psi.cz>
9 *
10 * Notes on the hardware
11 *
12 * Frequency control is done digitally -- ie out(port,encodefreq(95.8));
13 * No volume control - only mute/unmute - you have to use line volume
2 * heavily based on rtrack driver...
3 * (c) 1997 M. Kirkwood
4 * (c) 1998 Petr Vandrovec, vandrove@vc.cvut.cz
5 *
6 * Fitted to new interface by Alan Cox <alan@lxorguk.ukuu.org.uk>
7 * Made working and cleaned up functions <mikael.hedin@irf.se>
8 * Support for ISAPnP by Ladislav Michl <ladis@psi.cz>
9 *
10 * Notes on the hardware
11 *
12 * Frequency control is done digitally -- ie out(port,encodefreq(95.8));
13 * No volume control - only mute/unmute - you have to use line volume
14 * control on SB-part of SF16FMI
14 * control on SB-part of SF16-FMI/SF16-FMP
15 *
16 * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
17 */
18
19#include <linux/version.h>
20#include <linux/kernel.h> /* __setup */
21#include <linux/module.h> /* Modules */
22#include <linux/init.h> /* Initdata */
23#include <linux/ioport.h> /* request_region */
24#include <linux/delay.h> /* udelay */
25#include <linux/isapnp.h>
26#include <linux/mutex.h>
27#include <linux/videodev2.h> /* kernel radio structs */
28#include <linux/io.h> /* outb, outb_p */
29#include <media/v4l2-device.h>
30#include <media/v4l2-ioctl.h>
31
32MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
15 *
16 * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
17 */
18
19#include <linux/version.h>
20#include <linux/kernel.h> /* __setup */
21#include <linux/module.h> /* Modules */
22#include <linux/init.h> /* Initdata */
23#include <linux/ioport.h> /* request_region */
24#include <linux/delay.h> /* udelay */
25#include <linux/isapnp.h>
26#include <linux/mutex.h>
27#include <linux/videodev2.h> /* kernel radio structs */
28#include <linux/io.h> /* outb, outb_p */
29#include <media/v4l2-device.h>
30#include <media/v4l2-ioctl.h>
31
32MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
33MODULE_DESCRIPTION("A driver for the SF16MI radio.");
33MODULE_DESCRIPTION("A driver for the SF16-FMI and SF16-FMP radio.");
34MODULE_LICENSE("GPL");
35
36static int io = -1;
37static int radio_nr = -1;
38
39module_param(io, int, 0);
34MODULE_LICENSE("GPL");
35
36static int io = -1;
37static int radio_nr = -1;
38
39module_param(io, int, 0);
40MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
40MODULE_PARM_DESC(io, "I/O address of the SF16-FMI or SF16-FMP card (0x284 or 0x384)");
41module_param(radio_nr, int, 0);
42
43#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
44
45struct fmi
46{
47 struct v4l2_device v4l2_dev;
48 struct video_device vdev;
49 int io;
41module_param(radio_nr, int, 0);
42
43#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
44
45struct fmi
46{
47 struct v4l2_device v4l2_dev;
48 struct video_device vdev;
49 int io;
50 int curvol; /* 1 or 0 */
50 bool mute;
51 unsigned long curfreq; /* freq in kHz */
52 struct mutex lock;
53};
54
55static struct fmi fmi_card;
56static struct pnp_dev *dev;
57
58/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */

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

100{
101 mutex_lock(&fmi->lock);
102 fmi->curfreq = freq;
103
104 outbits(16, RSF16_ENCODE(freq), fmi->io);
105 outbits(8, 0xC0, fmi->io);
106 msleep(143); /* was schedule_timeout(HZ/7) */
107 mutex_unlock(&fmi->lock);
51 unsigned long curfreq; /* freq in kHz */
52 struct mutex lock;
53};
54
55static struct fmi fmi_card;
56static struct pnp_dev *dev;
57
58/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */

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100{
101 mutex_lock(&fmi->lock);
102 fmi->curfreq = freq;
103
104 outbits(16, RSF16_ENCODE(freq), fmi->io);
105 outbits(8, 0xC0, fmi->io);
106 msleep(143); /* was schedule_timeout(HZ/7) */
107 mutex_unlock(&fmi->lock);
108 if (fmi->curvol)
108 if (!fmi->mute)
109 fmi_unmute(fmi);
110 return 0;
111}
112
113static inline int fmi_getsigstr(struct fmi *fmi)
114{
115 int val;
116 int res;
117
118 mutex_lock(&fmi->lock);
109 fmi_unmute(fmi);
110 return 0;
111}
112
113static inline int fmi_getsigstr(struct fmi *fmi)
114{
115 int val;
116 int res;
117
118 mutex_lock(&fmi->lock);
119 val = fmi->curvol ? 0x08 : 0x00; /* unmute/mute */
119 val = fmi->mute ? 0x00 : 0x08; /* mute/unmute */
120 outb(val, fmi->io);
121 outb(val | 0x10, fmi->io);
122 msleep(143); /* was schedule_timeout(HZ/7) */
123 res = (int)inb(fmi->io + 1);
124 outb(val, fmi->io);
125
126 mutex_unlock(&fmi->lock);
127 return (res & 2) ? 0 : 0xFFFF;

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203
204static int vidioc_g_ctrl(struct file *file, void *priv,
205 struct v4l2_control *ctrl)
206{
207 struct fmi *fmi = video_drvdata(file);
208
209 switch (ctrl->id) {
210 case V4L2_CID_AUDIO_MUTE:
120 outb(val, fmi->io);
121 outb(val | 0x10, fmi->io);
122 msleep(143); /* was schedule_timeout(HZ/7) */
123 res = (int)inb(fmi->io + 1);
124 outb(val, fmi->io);
125
126 mutex_unlock(&fmi->lock);
127 return (res & 2) ? 0 : 0xFFFF;

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203
204static int vidioc_g_ctrl(struct file *file, void *priv,
205 struct v4l2_control *ctrl)
206{
207 struct fmi *fmi = video_drvdata(file);
208
209 switch (ctrl->id) {
210 case V4L2_CID_AUDIO_MUTE:
211 ctrl->value = fmi->curvol;
211 ctrl->value = fmi->mute;
212 return 0;
213 }
214 return -EINVAL;
215}
216
217static int vidioc_s_ctrl(struct file *file, void *priv,
218 struct v4l2_control *ctrl)
219{
220 struct fmi *fmi = video_drvdata(file);
221
222 switch (ctrl->id) {
223 case V4L2_CID_AUDIO_MUTE:
224 if (ctrl->value)
225 fmi_mute(fmi);
226 else
227 fmi_unmute(fmi);
212 return 0;
213 }
214 return -EINVAL;
215}
216
217static int vidioc_s_ctrl(struct file *file, void *priv,
218 struct v4l2_control *ctrl)
219{
220 struct fmi *fmi = video_drvdata(file);
221
222 switch (ctrl->id) {
223 case V4L2_CID_AUDIO_MUTE:
224 if (ctrl->value)
225 fmi_mute(fmi);
226 else
227 fmi_unmute(fmi);
228 fmi->curvol = ctrl->value;
228 fmi->mute = ctrl->value;
229 return 0;
230 }
231 return -EINVAL;
232}
233
234static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
235{
236 *i = 0;

--- 145 unchanged lines hidden --- 		229 return 0;
230 }
231 return -EINVAL;
232}
233
234static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
235{
236 *i = 0;

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