* Besides the protocol changes, this is mostly a copy of:
*
* RadioTrack II driver for Linux radio support (C) 1998 Ben Pfaff
- *
+ *
* Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
- * Converted to new API by Alan Cox <Alan.Cox@linux.org>
+ * Converted to new API by Alan Cox <alan@lxorguk.ukuu.org.uk>
* Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
*
* TODO: Allow for more than one of these foolish entities :-)
*
+ * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
*/
#include <linux/module.h> /* Modules */
#include <linux/init.h> /* Initdata */
-#include <linux/ioport.h> /* check_region, request_region */
+#include <linux/ioport.h> /* request_region */
#include <linux/delay.h> /* udelay */
-#include <asm/io.h> /* outb, outb_p */
-#include <asm/uaccess.h> /* copy to/from user */
-#include <linux/videodev.h> /* kernel radio structs */
-#include <linux/config.h> /* CONFIG_RADIO_GEMTEK_PORT */
-#include <linux/spinlock.h>
+#include <linux/videodev2.h> /* kernel radio structs */
+#include <linux/version.h> /* for KERNEL_VERSION MACRO */
+#include <linux/mutex.h>
+#include <linux/io.h> /* outb, outb_p */
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-device.h>
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 3)
+
+/*
+ * Module info.
+ */
+
+MODULE_AUTHOR("Jonas Munsin, Pekka Seppänen <pexu@kapsi.fi>");
+MODULE_DESCRIPTION("A driver for the GemTek Radio card.");
+MODULE_LICENSE("GPL");
+
+/*
+ * Module params.
+ */
#ifndef CONFIG_RADIO_GEMTEK_PORT
#define CONFIG_RADIO_GEMTEK_PORT -1
#endif
+#ifndef CONFIG_RADIO_GEMTEK_PROBE
+#define CONFIG_RADIO_GEMTEK_PROBE 1
+#endif
-static int io = CONFIG_RADIO_GEMTEK_PORT;
-static int radio_nr = -1;
-static spinlock_t lock;
+static int io = CONFIG_RADIO_GEMTEK_PORT;
+static int probe = CONFIG_RADIO_GEMTEK_PROBE;
+static int hardmute;
+static int shutdown = 1;
+static int keepmuted = 1;
+static int initmute = 1;
+static int radio_nr = -1;
-struct gemtek_device
-{
- int port;
- unsigned long curfreq;
+module_param(io, int, 0444);
+MODULE_PARM_DESC(io, "Force I/O port for the GemTek Radio card if automatic "
+ "probing is disabled or fails. The most common I/O ports are: 0x20c "
+ "0x30c, 0x24c or 0x34c (0x20c, 0x248 and 0x28c have been reported to "
+ "work for the combined sound/radiocard).");
+
+module_param(probe, bool, 0444);
+MODULE_PARM_DESC(probe, "Enable automatic device probing. Note: only the most "
+ "common I/O ports used by the card are probed.");
+
+module_param(hardmute, bool, 0644);
+MODULE_PARM_DESC(hardmute, "Enable `hard muting' by shutting down PLL, may "
+ "reduce static noise.");
+
+module_param(shutdown, bool, 0644);
+MODULE_PARM_DESC(shutdown, "Enable shutting down PLL and muting line when "
+ "module is unloaded.");
+
+module_param(keepmuted, bool, 0644);
+MODULE_PARM_DESC(keepmuted, "Keep card muted even when frequency is changed.");
+
+module_param(initmute, bool, 0444);
+MODULE_PARM_DESC(initmute, "Mute card when module is loaded.");
+
+module_param(radio_nr, int, 0444);
+
+/*
+ * Functions for controlling the card.
+ */
+#define GEMTEK_LOWFREQ (87*16000)
+#define GEMTEK_HIGHFREQ (108*16000)
+
+/*
+ * Frequency calculation constants. Intermediate frequency 10.52 MHz (nominal
+ * value 10.7 MHz), reference divisor 6.39 kHz (nominal 6.25 kHz).
+ */
+#define FSCALE 8
+#define IF_OFFSET ((unsigned int)(10.52 * 16000 * (1<<FSCALE)))
+#define REF_FREQ ((unsigned int)(6.39 * 16 * (1<<FSCALE)))
+
+#define GEMTEK_CK 0x01 /* Clock signal */
+#define GEMTEK_DA 0x02 /* Serial data */
+#define GEMTEK_CE 0x04 /* Chip enable */
+#define GEMTEK_NS 0x08 /* No signal */
+#define GEMTEK_MT 0x10 /* Line mute */
+#define GEMTEK_STDF_3_125_KHZ 0x01 /* Standard frequency 3.125 kHz */
+#define GEMTEK_PLL_OFF 0x07 /* PLL off */
+
+#define BU2614_BUS_SIZE 32 /* BU2614 / BU2614FS bus size */
+
+#define SHORT_DELAY 5 /* usec */
+#define LONG_DELAY 75 /* usec */
+
+struct gemtek {
+ struct v4l2_device v4l2_dev;
+ struct video_device vdev;
+ struct mutex lock;
+ unsigned long lastfreq;
int muted;
+ int verified;
+ int io;
+ u32 bu2614data;
};
+static struct gemtek gemtek_card;
+
+#define BU2614_FREQ_BITS 16 /* D0..D15, Frequency data */
+#define BU2614_PORT_BITS 3 /* P0..P2, Output port control data */
+#define BU2614_VOID_BITS 4 /* unused */
+#define BU2614_FMES_BITS 1 /* CT, Frequency measurement beginning data */
+#define BU2614_STDF_BITS 3 /* R0..R2, Standard frequency data */
+#define BU2614_SWIN_BITS 1 /* S, Switch between FMIN / AMIN */
+#define BU2614_SWAL_BITS 1 /* PS, Swallow counter division (AMIN only)*/
+#define BU2614_VOID2_BITS 1 /* unused */
+#define BU2614_FMUN_BITS 1 /* GT, Frequency measurement time & unlock */
+#define BU2614_TEST_BITS 1 /* TS, Test data is input */
+
+#define BU2614_FREQ_SHIFT 0
+#define BU2614_PORT_SHIFT (BU2614_FREQ_BITS + BU2614_FREQ_SHIFT)
+#define BU2614_VOID_SHIFT (BU2614_PORT_BITS + BU2614_PORT_SHIFT)
+#define BU2614_FMES_SHIFT (BU2614_VOID_BITS + BU2614_VOID_SHIFT)
+#define BU2614_STDF_SHIFT (BU2614_FMES_BITS + BU2614_FMES_SHIFT)
+#define BU2614_SWIN_SHIFT (BU2614_STDF_BITS + BU2614_STDF_SHIFT)
+#define BU2614_SWAL_SHIFT (BU2614_SWIN_BITS + BU2614_SWIN_SHIFT)
+#define BU2614_VOID2_SHIFT (BU2614_SWAL_BITS + BU2614_SWAL_SHIFT)
+#define BU2614_FMUN_SHIFT (BU2614_VOID2_BITS + BU2614_VOID2_SHIFT)
+#define BU2614_TEST_SHIFT (BU2614_FMUN_BITS + BU2614_FMUN_SHIFT)
+
+#define MKMASK(field) (((1<<BU2614_##field##_BITS) - 1) << \
+ BU2614_##field##_SHIFT)
+#define BU2614_PORT_MASK MKMASK(PORT)
+#define BU2614_FREQ_MASK MKMASK(FREQ)
+#define BU2614_VOID_MASK MKMASK(VOID)
+#define BU2614_FMES_MASK MKMASK(FMES)
+#define BU2614_STDF_MASK MKMASK(STDF)
+#define BU2614_SWIN_MASK MKMASK(SWIN)
+#define BU2614_SWAL_MASK MKMASK(SWAL)
+#define BU2614_VOID2_MASK MKMASK(VOID2)
+#define BU2614_FMUN_MASK MKMASK(FMUN)
+#define BU2614_TEST_MASK MKMASK(TEST)
-/* local things */
+/*
+ * Set data which will be sent to BU2614FS.
+ */
+#define gemtek_bu2614_set(dev, field, data) ((dev)->bu2614data = \
+ ((dev)->bu2614data & ~field##_MASK) | ((data) << field##_SHIFT))
-/* the correct way to mute the gemtek may be to write the last written
- * frequency || 0x10, but just writing 0x10 once seems to do it as well
+/*
+ * Transmit settings to BU2614FS over GemTek IC.
*/
-static void gemtek_mute(struct gemtek_device *dev)
+static void gemtek_bu2614_transmit(struct gemtek *gt)
{
- if(dev->muted)
- return;
- spin_lock(&lock);
- outb(0x10, io);
- spin_unlock(&lock);
- dev->muted = 1;
+ int i, bit, q, mute;
+
+ mutex_lock(>->lock);
+
+ mute = gt->muted ? GEMTEK_MT : 0x00;
+
+ outb_p(mute | GEMTEK_DA | GEMTEK_CK, gt->io);
+ udelay(SHORT_DELAY);
+ outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, gt->io);
+ udelay(LONG_DELAY);
+
+ for (i = 0, q = gt->bu2614data; i < 32; i++, q >>= 1) {
+ bit = (q & 1) ? GEMTEK_DA : 0;
+ outb_p(mute | GEMTEK_CE | bit, gt->io);
+ udelay(SHORT_DELAY);
+ outb_p(mute | GEMTEK_CE | bit | GEMTEK_CK, gt->io);
+ udelay(SHORT_DELAY);
+ }
+
+ outb_p(mute | GEMTEK_DA | GEMTEK_CK, gt->io);
+ udelay(SHORT_DELAY);
+ outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, gt->io);
+ udelay(LONG_DELAY);
+
+ mutex_unlock(>->lock);
}
-static void gemtek_unmute(struct gemtek_device *dev)
+/*
+ * Calculate divisor from FM-frequency for BU2614FS (3.125 KHz STDF expected).
+ */
+static unsigned long gemtek_convfreq(unsigned long freq)
{
- if(dev->muted == 0)
- return;
- spin_lock(&lock);
- outb(0x20, io);
- spin_unlock(&lock);
- dev->muted = 0;
+ return ((freq<<FSCALE) + IF_OFFSET + REF_FREQ/2) / REF_FREQ;
}
-static void zero(void)
+/*
+ * Set FM-frequency.
+ */
+static void gemtek_setfreq(struct gemtek *gt, unsigned long freq)
{
- outb_p(0x04, io);
- udelay(5);
- outb_p(0x05, io);
- udelay(5);
+ if (keepmuted && hardmute && gt->muted)
+ return;
+
+ freq = clamp_val(freq, GEMTEK_LOWFREQ, GEMTEK_HIGHFREQ);
+
+ gt->lastfreq = freq;
+ gt->muted = 0;
+
+ gemtek_bu2614_set(gt, BU2614_PORT, 0);
+ gemtek_bu2614_set(gt, BU2614_FMES, 0);
+ gemtek_bu2614_set(gt, BU2614_SWIN, 0); /* FM-mode */
+ gemtek_bu2614_set(gt, BU2614_SWAL, 0);
+ gemtek_bu2614_set(gt, BU2614_FMUN, 1); /* GT bit set */
+ gemtek_bu2614_set(gt, BU2614_TEST, 0);
+
+ gemtek_bu2614_set(gt, BU2614_STDF, GEMTEK_STDF_3_125_KHZ);
+ gemtek_bu2614_set(gt, BU2614_FREQ, gemtek_convfreq(freq));
+
+ gemtek_bu2614_transmit(gt);
}
-static void one(void)
+/*
+ * Set mute flag.
+ */
+static void gemtek_mute(struct gemtek *gt)
{
- outb_p(0x06, io);
- udelay(5);
- outb_p(0x07, io);
- udelay(5);
+ int i;
+
+ gt->muted = 1;
+
+ if (hardmute) {
+ /* Turn off PLL, disable data output */
+ gemtek_bu2614_set(gt, BU2614_PORT, 0);
+ gemtek_bu2614_set(gt, BU2614_FMES, 0); /* CT bit off */
+ gemtek_bu2614_set(gt, BU2614_SWIN, 0); /* FM-mode */
+ gemtek_bu2614_set(gt, BU2614_SWAL, 0);
+ gemtek_bu2614_set(gt, BU2614_FMUN, 0); /* GT bit off */
+ gemtek_bu2614_set(gt, BU2614_TEST, 0);
+ gemtek_bu2614_set(gt, BU2614_STDF, GEMTEK_PLL_OFF);
+ gemtek_bu2614_set(gt, BU2614_FREQ, 0);
+ gemtek_bu2614_transmit(gt);
+ return;
+ }
+
+ mutex_lock(>->lock);
+
+ /* Read bus contents (CE, CK and DA). */
+ i = inb_p(gt->io);
+ /* Write it back with mute flag set. */
+ outb_p((i >> 5) | GEMTEK_MT, gt->io);
+ udelay(SHORT_DELAY);
+
+ mutex_unlock(>->lock);
}
-static int gemtek_setfreq(struct gemtek_device *dev, unsigned long freq)
+/*
+ * Unset mute flag.
+ */
+static void gemtek_unmute(struct gemtek *gt)
{
int i;
-/* freq = 78.25*((float)freq/16000.0 + 10.52); */
-
- freq /= 16;
- freq += 10520;
- freq *= 7825;
- freq /= 100000;
-
- spin_lock(&lock);
-
- /* 2 start bits */
- outb_p(0x03, io);
- udelay(5);
- outb_p(0x07, io);
- udelay(5);
-
- /* 28 frequency bits (lsb first) */
- for (i = 0; i < 14; i++)
- if (freq & (1 << i))
- one();
- else
- zero();
- /* 36 unknown bits */
- for (i = 0; i < 11; i++)
- zero();
- one();
- for (i = 0; i < 4; i++)
- zero();
- one();
- zero();
-
- /* 2 end bits */
- outb_p(0x03, io);
- udelay(5);
- outb_p(0x07, io);
- udelay(5);
-
- spin_unlock(&lock);
-
- return 0;
+ gt->muted = 0;
+ if (hardmute) {
+ /* Turn PLL back on. */
+ gemtek_setfreq(gt, gt->lastfreq);
+ return;
+ }
+ mutex_lock(>->lock);
+
+ i = inb_p(gt->io);
+ outb_p(i >> 5, gt->io);
+ udelay(SHORT_DELAY);
+
+ mutex_unlock(>->lock);
}
-static int gemtek_getsigstr(struct gemtek_device *dev)
+/*
+ * Get signal strength (= stereo status).
+ */
+static inline int gemtek_getsigstr(struct gemtek *gt)
{
- spin_lock(&lock);
- inb(io);
- udelay(5);
- spin_unlock(&lock);
- if (inb(io) & 8) /* bit set = no signal present */
- return 0;
- return 1; /* signal present */
+ int sig;
+
+ mutex_lock(>->lock);
+ sig = inb_p(gt->io) & GEMTEK_NS ? 0 : 1;
+ mutex_unlock(>->lock);
+ return sig;
}
-static int gemtek_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
+/*
+ * Check if requested card acts like GemTek Radio card.
+ */
+static int gemtek_verify(struct gemtek *gt, int port)
{
- struct video_device *dev = video_devdata(file);
- struct gemtek_device *rt=dev->priv;
-
- switch(cmd)
- {
- case VIDIOCGCAP:
- {
- struct video_capability *v = arg;
- memset(v,0,sizeof(*v));
- v->type=VID_TYPE_TUNER;
- v->channels=1;
- v->audios=1;
- strcpy(v->name, "GemTek");
- return 0;
- }
- case VIDIOCGTUNER:
- {
- struct video_tuner *v = arg;
- if(v->tuner) /* Only 1 tuner */
- return -EINVAL;
- v->rangelow=87*16000;
- v->rangehigh=108*16000;
- v->flags=VIDEO_TUNER_LOW;
- v->mode=VIDEO_MODE_AUTO;
- v->signal=0xFFFF*gemtek_getsigstr(rt);
- strcpy(v->name, "FM");
- return 0;
- }
- case VIDIOCSTUNER:
- {
- struct video_tuner *v = arg;
- if(v->tuner!=0)
- return -EINVAL;
- /* Only 1 tuner so no setting needed ! */
- return 0;
- }
- case VIDIOCGFREQ:
- {
- unsigned long *freq = arg;
- *freq = rt->curfreq;
- return 0;
- }
- case VIDIOCSFREQ:
- {
- unsigned long *freq = arg;
- rt->curfreq = *freq;
- /* needs to be called twice in order for getsigstr to work */
- gemtek_setfreq(rt, rt->curfreq);
- gemtek_setfreq(rt, rt->curfreq);
- return 0;
- }
- case VIDIOCGAUDIO:
- {
- struct video_audio *v = arg;
- memset(v,0, sizeof(*v));
- v->flags|=VIDEO_AUDIO_MUTABLE;
- v->volume=1;
- v->step=65535;
- strcpy(v->name, "Radio");
- return 0;
- }
- case VIDIOCSAUDIO:
- {
- struct video_audio *v = arg;
- if(v->audio)
- return -EINVAL;
+ int i, q;
+
+ if (gt->verified == port)
+ return 1;
+
+ mutex_lock(>->lock);
- if(v->flags&VIDEO_AUDIO_MUTE)
- gemtek_mute(rt);
- else
- gemtek_unmute(rt);
+ q = inb_p(port); /* Read bus contents before probing. */
+ /* Try to turn on CE, CK and DA respectively and check if card responds
+ properly. */
+ for (i = 0; i < 3; ++i) {
+ outb_p(1 << i, port);
+ udelay(SHORT_DELAY);
+ if ((inb_p(port) & (~GEMTEK_NS)) != (0x17 | (1 << (i + 5)))) {
+ mutex_unlock(>->lock);
return 0;
}
- default:
- return -ENOIOCTLCMD;
}
+ outb_p(q >> 5, port); /* Write bus contents back. */
+ udelay(SHORT_DELAY);
+
+ mutex_unlock(>->lock);
+ gt->verified = port;
+
+ return 1;
}
-static int gemtek_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+/*
+ * Automatic probing for card.
+ */
+static int gemtek_probe(struct gemtek *gt)
{
- return video_usercopy(inode, file, cmd, arg, gemtek_do_ioctl);
+ struct v4l2_device *v4l2_dev = >->v4l2_dev;
+ int ioports[] = { 0x20c, 0x30c, 0x24c, 0x34c, 0x248, 0x28c };
+ int i;
+
+ if (!probe) {
+ v4l2_info(v4l2_dev, "Automatic device probing disabled.\n");
+ return -1;
+ }
+
+ v4l2_info(v4l2_dev, "Automatic device probing enabled.\n");
+
+ for (i = 0; i < ARRAY_SIZE(ioports); ++i) {
+ v4l2_info(v4l2_dev, "Trying I/O port 0x%x...\n", ioports[i]);
+
+ if (!request_region(ioports[i], 1, "gemtek-probe")) {
+ v4l2_warn(v4l2_dev, "I/O port 0x%x busy!\n",
+ ioports[i]);
+ continue;
+ }
+
+ if (gemtek_verify(gt, ioports[i])) {
+ v4l2_info(v4l2_dev, "Card found from I/O port "
+ "0x%x!\n", ioports[i]);
+
+ release_region(ioports[i], 1);
+ gt->io = ioports[i];
+ return gt->io;
+ }
+
+ release_region(ioports[i], 1);
+ }
+
+ v4l2_err(v4l2_dev, "Automatic probing failed!\n");
+ return -1;
}
-static struct gemtek_device gemtek_unit;
+/*
+ * Video 4 Linux stuff.
+ */
-static struct file_operations gemtek_fops = {
+static const struct v4l2_file_operations gemtek_fops = {
.owner = THIS_MODULE,
- .open = video_exclusive_open,
- .release = video_exclusive_release,
- .ioctl = gemtek_ioctl,
- .llseek = no_llseek,
+ .ioctl = video_ioctl2,
};
-static struct video_device gemtek_radio=
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *v)
{
- .owner = THIS_MODULE,
- .name = "GemTek radio",
- .type = VID_TYPE_TUNER,
- .hardware = VID_HARDWARE_GEMTEK,
- .fops = &gemtek_fops,
-};
+ strlcpy(v->driver, "radio-gemtek", sizeof(v->driver));
+ strlcpy(v->card, "GemTek", sizeof(v->card));
+ strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
+ v->version = RADIO_VERSION;
+ v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+ return 0;
+}
-static int __init gemtek_init(void)
+static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
{
- if(io==-1)
- {
- printk(KERN_ERR "You must set an I/O address with io=0x20c, io=0x30c, io=0x24c or io=0x34c (io=0x020c or io=0x248 for the combined sound/radiocard)\n");
+ struct gemtek *gt = video_drvdata(file);
+
+ if (v->index > 0)
return -EINVAL;
- }
- if (!request_region(io, 4, "gemtek"))
- {
- printk(KERN_ERR "gemtek: port 0x%x already in use\n", io);
- return -EBUSY;
+ strlcpy(v->name, "FM", sizeof(v->name));
+ v->type = V4L2_TUNER_RADIO;
+ v->rangelow = GEMTEK_LOWFREQ;
+ v->rangehigh = GEMTEK_HIGHFREQ;
+ v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
+ v->signal = 0xffff * gemtek_getsigstr(gt);
+ if (v->signal) {
+ v->audmode = V4L2_TUNER_MODE_STEREO;
+ v->rxsubchans = V4L2_TUNER_SUB_STEREO;
+ } else {
+ v->audmode = V4L2_TUNER_MODE_MONO;
+ v->rxsubchans = V4L2_TUNER_SUB_MONO;
}
+ return 0;
+}
- gemtek_radio.priv=&gemtek_unit;
-
- if(video_register_device(&gemtek_radio, VFL_TYPE_RADIO, radio_nr)==-1)
- {
- release_region(io, 4);
+static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
+{
+ return (v->index != 0) ? -EINVAL : 0;
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct gemtek *gt = video_drvdata(file);
+
+ if (f->tuner != 0)
+ return -EINVAL;
+ f->type = V4L2_TUNER_RADIO;
+ f->frequency = gt->lastfreq;
+ return 0;
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct gemtek *gt = video_drvdata(file);
+
+ if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+ return -EINVAL;
+ gemtek_setfreq(gt, f->frequency);
+ return 0;
+}
+
+static int vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ switch (qc->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
+ default:
return -EINVAL;
}
- printk(KERN_INFO "GemTek Radio Card driver.\n");
+}
- spin_lock_init(&lock);
+static int vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct gemtek *gt = video_drvdata(file);
- /* this is _maybe_ unnecessary */
- outb(0x01, io);
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ ctrl->value = gt->muted;
+ return 0;
+ }
+ return -EINVAL;
+}
- /* mute card - prevents noisy bootups */
- gemtek_unit.muted = 0;
- gemtek_mute(&gemtek_unit);
+static int vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct gemtek *gt = video_drvdata(file);
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ if (ctrl->value)
+ gemtek_mute(gt);
+ else
+ gemtek_unmute(gt);
+ return 0;
+ }
+ return -EINVAL;
+}
+static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+{
+ *i = 0;
return 0;
}
-MODULE_AUTHOR("Jonas Munsin");
-MODULE_DESCRIPTION("A driver for the GemTek Radio Card");
-MODULE_LICENSE("GPL");
+static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
+{
+ return (i != 0) ? -EINVAL : 0;
+}
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the GemTek card (0x20c, 0x30c, 0x24c or 0x34c (0x20c or 0x248 have been reported to work for the combined sound/radiocard)).");
-module_param(radio_nr, int, 0);
+static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ a->index = 0;
+ strlcpy(a->name, "Radio", sizeof(a->name));
+ a->capability = V4L2_AUDCAP_STEREO;
+ return 0;
+}
-static void __exit gemtek_cleanup(void)
+static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
{
- video_unregister_device(&gemtek_radio);
- release_region(io,4);
+ return (a->index != 0) ? -EINVAL : 0;
}
-module_init(gemtek_init);
-module_exit(gemtek_cleanup);
+static const struct v4l2_ioctl_ops gemtek_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl
+};
/*
- Local variables:
- compile-command: "gcc -c -DMODVERSIONS -D__KERNEL__ -DMODULE -O6 -Wall -Wstrict-prototypes -I /home/blp/tmp/linux-2.1.111-rtrack/include radio-rtrack2.c"
- End:
-*/
+ * Initialization / cleanup related stuff.
+ */
+
+static int __init gemtek_init(void)
+{
+ struct gemtek *gt = &gemtek_card;
+ struct v4l2_device *v4l2_dev = >->v4l2_dev;
+ int res;
+
+ strlcpy(v4l2_dev->name, "gemtek", sizeof(v4l2_dev->name));
+
+ v4l2_info(v4l2_dev, "GemTek Radio card driver: v0.0.3\n");
+
+ mutex_init(>->lock);
+
+ gt->verified = -1;
+ gt->io = io;
+ gemtek_probe(gt);
+ if (gt->io) {
+ if (!request_region(gt->io, 1, "gemtek")) {
+ v4l2_err(v4l2_dev, "I/O port 0x%x already in use.\n", gt->io);
+ return -EBUSY;
+ }
+
+ if (!gemtek_verify(gt, gt->io))
+ v4l2_warn(v4l2_dev, "Card at I/O port 0x%x does not "
+ "respond properly, check your "
+ "configuration.\n", gt->io);
+ else
+ v4l2_info(v4l2_dev, "Using I/O port 0x%x.\n", gt->io);
+ } else if (probe) {
+ v4l2_err(v4l2_dev, "Automatic probing failed and no "
+ "fixed I/O port defined.\n");
+ return -ENODEV;
+ } else {
+ v4l2_err(v4l2_dev, "Automatic probing disabled but no fixed "
+ "I/O port defined.");
+ return -EINVAL;
+ }
+
+ res = v4l2_device_register(NULL, v4l2_dev);
+ if (res < 0) {
+ v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+ release_region(gt->io, 1);
+ return res;
+ }
+
+ strlcpy(gt->vdev.name, v4l2_dev->name, sizeof(gt->vdev.name));
+ gt->vdev.v4l2_dev = v4l2_dev;
+ gt->vdev.fops = &gemtek_fops;
+ gt->vdev.ioctl_ops = &gemtek_ioctl_ops;
+ gt->vdev.release = video_device_release_empty;
+ video_set_drvdata(>->vdev, gt);
+
+ if (video_register_device(>->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+ v4l2_device_unregister(v4l2_dev);
+ release_region(gt->io, 1);
+ return -EBUSY;
+ }
+
+ /* Set defaults */
+ gt->lastfreq = GEMTEK_LOWFREQ;
+ gt->bu2614data = 0;
+
+ if (initmute)
+ gemtek_mute(gt);
+
+ return 0;
+}
+
+/*
+ * Module cleanup
+ */
+static void __exit gemtek_exit(void)
+{
+ struct gemtek *gt = &gemtek_card;
+ struct v4l2_device *v4l2_dev = >->v4l2_dev;
+
+ if (shutdown) {
+ hardmute = 1; /* Turn off PLL */
+ gemtek_mute(gt);
+ } else {
+ v4l2_info(v4l2_dev, "Module unloaded but card not muted!\n");
+ }
+
+ video_unregister_device(>->vdev);
+ v4l2_device_unregister(>->v4l2_dev);
+ release_region(gt->io, 1);
+}
+
+module_init(gemtek_init);
+module_exit(gemtek_exit);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff