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path: root/drivers/media/radio/radio-rtrack2.c
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Diffstat (limited to 'drivers/media/radio/radio-rtrack2.c')
-rw-r--r--drivers/media/radio/radio-rtrack2.c383
1 files changed, 75 insertions, 308 deletions
diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c
index 2587227214b..09cfbc373c9 100644
--- a/drivers/media/radio/radio-rtrack2.c
+++ b/drivers/media/radio/radio-rtrack2.c
@@ -1,374 +1,141 @@
-/* RadioTrack II driver for Linux radio support (C) 1998 Ben Pfaff
+/*
+ * RadioTrack II driver
+ * Copyright 1998 Ben Pfaff
*
* Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
* 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 the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com>
* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
+ *
+ * Fully tested with actual hardware and the v4l2-compliance tool.
*/
#include <linux/module.h> /* Modules */
#include <linux/init.h> /* Initdata */
#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/videodev2.h> /* kernel radio structs */
-#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+#include <linux/io.h> /* outb, outb_p */
+#include <linux/slab.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
-#include <linux/spinlock.h>
+#include "radio-isa.h"
-#include <linux/version.h> /* for KERNEL_VERSION MACRO */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
- {
- .id = V4L2_CID_AUDIO_MUTE,
- .name = "Mute",
- .minimum = 0,
- .maximum = 1,
- .default_value = 1,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- },{
- .id = V4L2_CID_AUDIO_VOLUME,
- .name = "Volume",
- .minimum = 0,
- .maximum = 65535,
- .step = 65535,
- .default_value = 0xff,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }
-};
+MODULE_AUTHOR("Ben Pfaff");
+MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.1.99");
#ifndef CONFIG_RADIO_RTRACK2_PORT
#define CONFIG_RADIO_RTRACK2_PORT -1
#endif
-static int io = CONFIG_RADIO_RTRACK2_PORT;
-static int radio_nr = -1;
-static spinlock_t lock;
-
-struct rt_device
-{
- unsigned long in_use;
- int port;
- unsigned long curfreq;
- int muted;
-};
-
+#define RTRACK2_MAX 2
-/* local things */
+static int io[RTRACK2_MAX] = { [0] = CONFIG_RADIO_RTRACK2_PORT,
+ [1 ... (RTRACK2_MAX - 1)] = -1 };
+static int radio_nr[RTRACK2_MAX] = { [0 ... (RTRACK2_MAX - 1)] = -1 };
-static void rt_mute(struct rt_device *dev)
-{
- if(dev->muted)
- return;
- spin_lock(&lock);
- outb(1, io);
- spin_unlock(&lock);
- dev->muted = 1;
-}
+module_param_array(io, int, NULL, 0444);
+MODULE_PARM_DESC(io, "I/O addresses of the RadioTrack card (0x20f or 0x30f)");
+module_param_array(radio_nr, int, NULL, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio device numbers");
-static void rt_unmute(struct rt_device *dev)
+static struct radio_isa_card *rtrack2_alloc(void)
{
- if(dev->muted == 0)
- return;
- spin_lock(&lock);
- outb(0, io);
- spin_unlock(&lock);
- dev->muted = 0;
+ return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL);
}
-static void zero(void)
+static void zero(struct radio_isa_card *isa)
{
- outb_p(1, io);
- outb_p(3, io);
- outb_p(1, io);
+ outb_p(1, isa->io);
+ outb_p(3, isa->io);
+ outb_p(1, isa->io);
}
-static void one(void)
+static void one(struct radio_isa_card *isa)
{
- outb_p(5, io);
- outb_p(7, io);
- outb_p(5, io);
+ outb_p(5, isa->io);
+ outb_p(7, isa->io);
+ outb_p(5, isa->io);
}
-static int rt_setfreq(struct rt_device *dev, unsigned long freq)
+static int rtrack2_s_frequency(struct radio_isa_card *isa, u32 freq)
{
int i;
freq = freq / 200 + 856;
- spin_lock(&lock);
-
- outb_p(0xc8, io);
- outb_p(0xc9, io);
- outb_p(0xc9, io);
+ outb_p(0xc8, isa->io);
+ outb_p(0xc9, isa->io);
+ outb_p(0xc9, isa->io);
for (i = 0; i < 10; i++)
- zero ();
+ zero(isa);
for (i = 14; i >= 0; i--)
if (freq & (1 << i))
- one ();
+ one(isa);
else
- zero ();
+ zero(isa);
- outb_p(0xc8, io);
- if (!dev->muted)
- outb_p(0, io);
-
- spin_unlock(&lock);
+ outb_p(0xc8, isa->io);
+ outb_p(v4l2_ctrl_g_ctrl(isa->mute), isa->io);
return 0;
}
-static int vidioc_querycap(struct file *file, void *priv,
- struct v4l2_capability *v)
+static u32 rtrack2_g_signal(struct radio_isa_card *isa)
{
- strlcpy(v->driver, "radio-rtrack2", sizeof(v->driver));
- strlcpy(v->card, "RadioTrack II", sizeof(v->card));
- sprintf(v->bus_info, "ISA");
- v->version = RADIO_VERSION;
- v->capabilities = V4L2_CAP_TUNER;
- return 0;
+ /* bit set = no signal present */
+ return (inb(isa->io) & 2) ? 0 : 0xffff;
}
-static int vidioc_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *v)
+static int rtrack2_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
{
- if (v->index > 0)
- return -EINVAL;
-
+ outb(mute, isa->io);
return 0;
}
-static int rt_getsigstr(struct rt_device *dev)
-{
- if (inb(io) & 2) /* bit set = no signal present */
- return 0;
- return 1; /* signal present */
-}
-
-static int vidioc_g_tuner(struct file *file, void *priv,
- struct v4l2_tuner *v)
-{
- struct rt_device *rt = video_drvdata(file);
-
- if (v->index > 0)
- return -EINVAL;
-
- strcpy(v->name, "FM");
- v->type = V4L2_TUNER_RADIO;
- v->rangelow = (88*16000);
- v->rangehigh = (108*16000);
- v->rxsubchans = V4L2_TUNER_SUB_MONO;
- v->capability = V4L2_TUNER_CAP_LOW;
- v->audmode = V4L2_TUNER_MODE_MONO;
- v->signal = 0xFFFF*rt_getsigstr(rt);
- return 0;
-}
-
-static int vidioc_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct rt_device *rt = video_drvdata(file);
-
- rt->curfreq = f->frequency;
- rt_setfreq(rt, rt->curfreq);
- return 0;
-}
-
-static int vidioc_g_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct rt_device *rt = video_drvdata(file);
-
- f->type = V4L2_TUNER_RADIO;
- f->frequency = rt->curfreq;
- return 0;
-}
-
-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
- if (qc->id && qc->id == radio_qctrl[i].id) {
- memcpy(qc, &(radio_qctrl[i]),
- sizeof(*qc));
- return 0;
- }
- }
- return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct rt_device *rt = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- ctrl->value = rt->muted;
- return 0;
- case V4L2_CID_AUDIO_VOLUME:
- if (rt->muted)
- ctrl->value = 0;
- else
- ctrl->value = 65535;
- return 0;
- }
- return -EINVAL;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct rt_device *rt = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (ctrl->value)
- rt_mute(rt);
- else
- rt_unmute(rt);
- return 0;
- case V4L2_CID_AUDIO_VOLUME:
- if (ctrl->value)
- rt_unmute(rt);
- else
- rt_mute(rt);
- return 0;
- }
- return -EINVAL;
-}
-
-static int vidioc_g_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- if (a->index > 1)
- return -EINVAL;
-
- strcpy(a->name, "Radio");
- a->capability = V4L2_AUDCAP_STEREO;
- return 0;
-}
-
-static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
-{
- *i = 0;
- return 0;
-}
-
-static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
-{
- if (i != 0)
- return -EINVAL;
- return 0;
-}
-
-static int vidioc_s_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- if (a->index != 0)
- return -EINVAL;
- return 0;
-}
-
-static struct rt_device rtrack2_unit;
-
-static int rtrack2_exclusive_open(struct file *file)
-{
- return test_and_set_bit(0, &rtrack2_unit.in_use) ? -EBUSY : 0;
-}
-
-static int rtrack2_exclusive_release(struct file *file)
-{
- clear_bit(0, &rtrack2_unit.in_use);
- return 0;
-}
-
-static const struct v4l2_file_operations rtrack2_fops = {
- .owner = THIS_MODULE,
- .open = rtrack2_exclusive_open,
- .release = rtrack2_exclusive_release,
- .ioctl = video_ioctl2,
-};
-
-static const struct v4l2_ioctl_ops rtrack2_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_g_tuner = vidioc_g_tuner,
- .vidioc_s_tuner = vidioc_s_tuner,
- .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,
- .vidioc_g_audio = vidioc_g_audio,
- .vidioc_s_audio = vidioc_s_audio,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
+static const struct radio_isa_ops rtrack2_ops = {
+ .alloc = rtrack2_alloc,
+ .s_mute_volume = rtrack2_s_mute_volume,
+ .s_frequency = rtrack2_s_frequency,
+ .g_signal = rtrack2_g_signal,
};
-static struct video_device rtrack2_radio = {
- .name = "RadioTrack II radio",
- .fops = &rtrack2_fops,
- .ioctl_ops = &rtrack2_ioctl_ops,
- .release = video_device_release_empty,
+static const int rtrack2_ioports[] = { 0x20f, 0x30f };
+
+static struct radio_isa_driver rtrack2_driver = {
+ .driver = {
+ .match = radio_isa_match,
+ .probe = radio_isa_probe,
+ .remove = radio_isa_remove,
+ .driver = {
+ .name = "radio-rtrack2",
+ },
+ },
+ .io_params = io,
+ .radio_nr_params = radio_nr,
+ .io_ports = rtrack2_ioports,
+ .num_of_io_ports = ARRAY_SIZE(rtrack2_ioports),
+ .region_size = 4,
+ .card = "AIMSlab RadioTrack II",
+ .ops = &rtrack2_ops,
+ .has_stereo = true,
};
static int __init rtrack2_init(void)
{
- if(io==-1)
- {
- printk(KERN_ERR "You must set an I/O address with io=0x20c or io=0x30c\n");
- return -EINVAL;
- }
- if (!request_region(io, 4, "rtrack2"))
- {
- printk(KERN_ERR "rtrack2: port 0x%x already in use\n", io);
- return -EBUSY;
- }
-
- video_set_drvdata(&rtrack2_radio, &rtrack2_unit);
-
- spin_lock_init(&lock);
- if (video_register_device(&rtrack2_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
- release_region(io, 4);
- return -EINVAL;
- }
-
- printk(KERN_INFO "AIMSlab Radiotrack II card driver.\n");
-
- /* mute card - prevents noisy bootups */
- outb(1, io);
- rtrack2_unit.muted = 1;
-
- return 0;
+ return isa_register_driver(&rtrack2_driver.driver, RTRACK2_MAX);
}
-MODULE_AUTHOR("Ben Pfaff");
-MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20c or 0x30c)");
-module_param(radio_nr, int, 0);
-
-static void __exit rtrack2_cleanup_module(void)
+static void __exit rtrack2_exit(void)
{
- video_unregister_device(&rtrack2_radio);
- release_region(io,4);
+ isa_unregister_driver(&rtrack2_driver.driver);
}
module_init(rtrack2_init);
-module_exit(rtrack2_cleanup_module);
-
-/*
- Local variables:
- compile-command: "mmake"
- End:
-*/
+module_exit(rtrack2_exit);
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