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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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V4L/DVB (10888): radio-sf16fmi: convert to v4l2_device.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
922c78e9f6
commit
c41269fd92
@ -22,113 +22,110 @@
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#include <linux/init.h> /* Initdata */
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#include <linux/ioport.h> /* request_region */
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#include <linux/delay.h> /* udelay */
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#include <linux/videodev2.h> /* kernel radio structs */
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/isapnp.h>
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#include <asm/io.h> /* outb, outb_p */
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#include <asm/uaccess.h> /* copy to/from user */
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#include <linux/mutex.h>
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#include <linux/videodev2.h> /* kernel radio structs */
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#include <linux/io.h> /* outb, outb_p */
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#include <linux/uaccess.h> /* copy to/from user */
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#define RADIO_VERSION KERNEL_VERSION(0,0,2)
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static struct v4l2_queryctrl radio_qctrl[] = {
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{
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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}
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};
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struct fmi_device
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{
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unsigned long in_use;
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int port;
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int curvol; /* 1 or 0 */
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unsigned long curfreq; /* freq in kHz */
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__u32 flags;
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};
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MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
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MODULE_DESCRIPTION("A driver for the SF16MI radio.");
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MODULE_LICENSE("GPL");
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static int io = -1;
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static int radio_nr = -1;
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static struct pnp_dev *dev = NULL;
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static struct mutex lock;
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module_param(io, int, 0);
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MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
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module_param(radio_nr, int, 0);
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#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
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struct fmi
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{
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struct v4l2_device v4l2_dev;
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struct video_device vdev;
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int io;
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int curvol; /* 1 or 0 */
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unsigned long curfreq; /* freq in kHz */
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__u32 flags;
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struct mutex lock;
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};
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static struct fmi fmi_card;
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static struct pnp_dev *dev;
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/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
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/* It is only useful to give freq in intervall of 800 (=0.05Mhz),
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* other bits will be truncated, e.g 92.7400016 -> 92.7, but
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* 92.7400017 -> 92.75
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*/
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#define RSF16_ENCODE(x) ((x)/800+214)
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#define RSF16_MINFREQ 87*16000
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#define RSF16_MAXFREQ 108*16000
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#define RSF16_ENCODE(x) ((x) / 800 + 214)
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#define RSF16_MINFREQ (87 * 16000)
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#define RSF16_MAXFREQ (108 * 16000)
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static void outbits(int bits, unsigned int data, int port)
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static void outbits(int bits, unsigned int data, int io)
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{
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while(bits--) {
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if(data & 1) {
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outb(5, port);
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while (bits--) {
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if (data & 1) {
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outb(5, io);
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udelay(6);
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outb(7, port);
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outb(7, io);
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udelay(6);
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} else {
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outb(1, port);
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outb(1, io);
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udelay(6);
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outb(3, port);
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outb(3, io);
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udelay(6);
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}
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data>>=1;
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data >>= 1;
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}
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}
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static inline void fmi_mute(int port)
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static inline void fmi_mute(struct fmi *fmi)
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{
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mutex_lock(&lock);
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outb(0x00, port);
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mutex_unlock(&lock);
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mutex_lock(&fmi->lock);
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outb(0x00, fmi->io);
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mutex_unlock(&fmi->lock);
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}
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static inline void fmi_unmute(int port)
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static inline void fmi_unmute(struct fmi *fmi)
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{
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mutex_lock(&lock);
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outb(0x08, port);
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mutex_unlock(&lock);
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mutex_lock(&fmi->lock);
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outb(0x08, fmi->io);
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mutex_unlock(&fmi->lock);
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}
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static inline int fmi_setfreq(struct fmi_device *dev)
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static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq)
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{
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int myport = dev->port;
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unsigned long freq = dev->curfreq;
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mutex_lock(&fmi->lock);
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fmi->curfreq = freq;
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mutex_lock(&lock);
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outbits(16, RSF16_ENCODE(freq), myport);
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outbits(8, 0xC0, myport);
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outbits(16, RSF16_ENCODE(freq), fmi->io);
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outbits(8, 0xC0, fmi->io);
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msleep(143); /* was schedule_timeout(HZ/7) */
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mutex_unlock(&lock);
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if (dev->curvol) fmi_unmute(myport);
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mutex_unlock(&fmi->lock);
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if (fmi->curvol)
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fmi_unmute(fmi);
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return 0;
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}
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static inline int fmi_getsigstr(struct fmi_device *dev)
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static inline int fmi_getsigstr(struct fmi *fmi)
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{
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int val;
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int res;
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int myport = dev->port;
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mutex_lock(&lock);
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val = dev->curvol ? 0x08 : 0x00; /* unmute/mute */
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outb(val, myport);
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outb(val | 0x10, myport);
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mutex_lock(&fmi->lock);
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val = fmi->curvol ? 0x08 : 0x00; /* unmute/mute */
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outb(val, fmi->io);
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outb(val | 0x10, fmi->io);
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msleep(143); /* was schedule_timeout(HZ/7) */
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res = (int)inb(myport+1);
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outb(val, myport);
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res = (int)inb(fmi->io + 1);
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outb(val, fmi->io);
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mutex_unlock(&lock);
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mutex_unlock(&fmi->lock);
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return (res & 2) ? 0 : 0xFFFF;
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}
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@ -137,9 +134,9 @@ static int vidioc_querycap(struct file *file, void *priv,
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{
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strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
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strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
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sprintf(v->bus_info, "ISA");
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strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
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v->version = RADIO_VERSION;
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v->capabilities = V4L2_CAP_TUNER;
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v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
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return 0;
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}
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@ -147,18 +144,18 @@ static int vidioc_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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{
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int mult;
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struct fmi_device *fmi = video_drvdata(file);
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struct fmi *fmi = video_drvdata(file);
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if (v->index > 0)
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return -EINVAL;
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strcpy(v->name, "FM");
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strlcpy(v->name, "FM", sizeof(v->name));
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v->type = V4L2_TUNER_RADIO;
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mult = (fmi->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
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v->rangelow = RSF16_MINFREQ/mult;
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v->rangehigh = RSF16_MAXFREQ/mult;
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v->rangelow = RSF16_MINFREQ / mult;
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v->rangehigh = RSF16_MAXFREQ / mult;
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v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO;
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v->capability = fmi->flags&V4L2_TUNER_CAP_LOW;
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v->capability = fmi->flags & V4L2_TUNER_CAP_LOW;
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v->audmode = V4L2_TUNER_MODE_STEREO;
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v->signal = fmi_getsigstr(fmi);
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return 0;
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@ -167,32 +164,29 @@ static int vidioc_g_tuner(struct file *file, void *priv,
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static int vidioc_s_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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{
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if (v->index > 0)
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return -EINVAL;
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return 0;
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return v->index ? -EINVAL : 0;
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}
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static int vidioc_s_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct fmi_device *fmi = video_drvdata(file);
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struct fmi *fmi = video_drvdata(file);
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if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
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f->frequency *= 1000;
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if (f->frequency < RSF16_MINFREQ ||
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f->frequency > RSF16_MAXFREQ )
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f->frequency > RSF16_MAXFREQ)
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return -EINVAL;
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/*rounding in steps of 800 to match th freq
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that will be used */
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fmi->curfreq = (f->frequency/800)*800;
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fmi_setfreq(fmi);
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/* rounding in steps of 800 to match the freq
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that will be used */
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fmi_setfreq(fmi, (f->frequency / 800) * 800);
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return 0;
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}
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static int vidioc_g_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct fmi_device *fmi = video_drvdata(file);
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struct fmi *fmi = video_drvdata(file);
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f->type = V4L2_TUNER_RADIO;
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f->frequency = fmi->curfreq;
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@ -204,14 +198,9 @@ static int vidioc_g_frequency(struct file *file, void *priv,
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static int vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
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if (qc->id && qc->id == radio_qctrl[i].id) {
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memcpy(qc, &(radio_qctrl[i]),
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sizeof(*qc));
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return 0;
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}
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switch (qc->id) {
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case V4L2_CID_AUDIO_MUTE:
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return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
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}
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return -EINVAL;
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}
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@ -219,7 +208,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
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static int vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct fmi_device *fmi = video_drvdata(file);
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struct fmi *fmi = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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@ -232,31 +221,20 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
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static int vidioc_s_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct fmi_device *fmi = video_drvdata(file);
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struct fmi *fmi = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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if (ctrl->value)
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fmi_mute(fmi->port);
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fmi_mute(fmi);
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else
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fmi_unmute(fmi->port);
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fmi_unmute(fmi);
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fmi->curvol = ctrl->value;
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return 0;
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}
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return -EINVAL;
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}
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static int vidioc_g_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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if (a->index > 1)
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return -EINVAL;
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strcpy(a->name, "Radio");
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a->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
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{
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*i = 0;
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@ -265,36 +243,38 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
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static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
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{
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if (i != 0)
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return -EINVAL;
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return i ? -EINVAL : 0;
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}
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static int vidioc_g_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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a->index = 0;
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strlcpy(a->name, "Radio", sizeof(a->name));
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a->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int vidioc_s_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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if (a->index != 0)
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return -EINVAL;
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return a->index ? -EINVAL : 0;
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}
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static int fmi_open(struct file *file)
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{
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return 0;
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}
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static struct fmi_device fmi_unit;
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static int fmi_exclusive_open(struct file *file)
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static int fmi_release(struct file *file)
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{
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return test_and_set_bit(0, &fmi_unit.in_use) ? -EBUSY : 0;
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}
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static int fmi_exclusive_release(struct file *file)
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{
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clear_bit(0, &fmi_unit.in_use);
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return 0;
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}
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static const struct v4l2_file_operations fmi_fops = {
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.owner = THIS_MODULE,
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.open = fmi_exclusive_open,
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.release = fmi_exclusive_release,
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.open = fmi_open,
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.release = fmi_release,
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.ioctl = video_ioctl2,
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};
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@ -313,13 +293,6 @@ static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
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.vidioc_s_ctrl = vidioc_s_ctrl,
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};
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static struct video_device fmi_radio = {
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.name = "SF16FMx radio",
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.fops = &fmi_fops,
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.ioctl_ops = &fmi_ioctl_ops,
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.release = video_device_release_empty,
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};
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/* ladis: this is my card. does any other types exist? */
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static struct isapnp_device_id id_table[] __devinitdata = {
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{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
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@ -344,7 +317,7 @@ static int __init isapnp_fmi_probe(void)
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if (pnp_device_attach(dev) < 0)
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return -EAGAIN;
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if (pnp_activate_dev(dev) < 0) {
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printk ("radio-sf16fmi: PnP configure failed (out of resources?)\n");
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printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
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pnp_device_detach(dev);
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return -ENOMEM;
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}
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@ -354,59 +327,72 @@ static int __init isapnp_fmi_probe(void)
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}
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i = pnp_port_start(dev, 0);
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printk ("radio-sf16fmi: PnP reports card at %#x\n", i);
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printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);
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return i;
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}
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static int __init fmi_init(void)
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{
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struct fmi *fmi = &fmi_card;
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struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
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int res;
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if (io < 0)
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io = isapnp_fmi_probe();
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if (io < 0) {
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printk(KERN_ERR "radio-sf16fmi: No PnP card found.\n");
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return io;
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strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
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fmi->io = io;
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if (fmi->io < 0) {
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v4l2_err(v4l2_dev, "No PnP card found.\n");
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return fmi->io;
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}
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if (!request_region(io, 2, "radio-sf16fmi")) {
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printk(KERN_ERR "radio-sf16fmi: port 0x%x already in use\n", io);
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v4l2_err(v4l2_dev, "port 0x%x already in use\n", fmi->io);
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pnp_device_detach(dev);
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return -EBUSY;
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}
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fmi_unit.port = io;
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fmi_unit.curvol = 0;
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fmi_unit.curfreq = 0;
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fmi_unit.flags = V4L2_TUNER_CAP_LOW;
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video_set_drvdata(&fmi_radio, &fmi_unit);
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res = v4l2_device_register(NULL, v4l2_dev);
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if (res < 0) {
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release_region(fmi->io, 2);
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pnp_device_detach(dev);
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v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
|
||||
return res;
|
||||
}
|
||||
|
||||
mutex_init(&lock);
|
||||
fmi->flags = V4L2_TUNER_CAP_LOW;
|
||||
strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
|
||||
fmi->vdev.v4l2_dev = v4l2_dev;
|
||||
fmi->vdev.fops = &fmi_fops;
|
||||
fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
|
||||
fmi->vdev.release = video_device_release_empty;
|
||||
video_set_drvdata(&fmi->vdev, fmi);
|
||||
|
||||
if (video_register_device(&fmi_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
release_region(io, 2);
|
||||
mutex_init(&fmi->lock);
|
||||
|
||||
if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
v4l2_device_unregister(v4l2_dev);
|
||||
release_region(fmi->io, 2);
|
||||
pnp_device_detach(dev);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "SF16FMx radio card driver at 0x%x\n", io);
|
||||
v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
|
||||
/* mute card - prevents noisy bootups */
|
||||
fmi_mute(io);
|
||||
fmi_mute(fmi);
|
||||
return 0;
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
|
||||
MODULE_DESCRIPTION("A driver for the SF16MI radio.");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_param(io, int, 0);
|
||||
MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
|
||||
module_param(radio_nr, int, 0);
|
||||
|
||||
static void __exit fmi_cleanup_module(void)
|
||||
static void __exit fmi_exit(void)
|
||||
{
|
||||
video_unregister_device(&fmi_radio);
|
||||
release_region(io, 2);
|
||||
struct fmi *fmi = &fmi_card;
|
||||
|
||||
video_unregister_device(&fmi->vdev);
|
||||
v4l2_device_unregister(&fmi->v4l2_dev);
|
||||
release_region(fmi->io, 2);
|
||||
if (dev)
|
||||
pnp_device_detach(dev);
|
||||
}
|
||||
|
||||
module_init(fmi_init);
|
||||
module_exit(fmi_cleanup_module);
|
||||
module_exit(fmi_exit);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user