From 922c78e9f6900ade073da1a92d43c56d77cf790f Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 6 Mar 2009 13:52:06 -0300 Subject: [PATCH] V4L/DVB (10887): radio-rtrack2: convert to v4l2_device. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/radio-rtrack2.c | 278 +++++++++++++--------------- 1 file changed, 129 insertions(+), 149 deletions(-) diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c index 2587227214b..08bd8d9dc4f 100644 --- a/drivers/media/radio/radio-rtrack2.c +++ b/drivers/media/radio/radio-rtrack2.c @@ -13,34 +13,17 @@ #include /* Initdata */ #include /* request_region */ #include /* udelay */ -#include /* outb, outb_p */ -#include /* copy to/from user */ #include /* kernel radio structs */ -#include +#include +#include /* for KERNEL_VERSION MACRO */ +#include /* outb, outb_p */ +#include /* copy to/from user */ +#include #include -#include -#include /* 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"); #ifndef CONFIG_RADIO_RTRACK2_PORT #define CONFIG_RADIO_RTRACK2_PORT -1 @@ -48,79 +31,89 @@ static struct v4l2_queryctrl radio_qctrl[] = { static int io = CONFIG_RADIO_RTRACK2_PORT; static int radio_nr = -1; -static spinlock_t lock; -struct rt_device +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); + +#define RADIO_VERSION KERNEL_VERSION(0, 0, 2) + +struct rtrack2 { - unsigned long in_use; - int port; + struct v4l2_device v4l2_dev; + struct video_device vdev; + int io; unsigned long curfreq; int muted; + struct mutex lock; }; +static struct rtrack2 rtrack2_card; + /* local things */ -static void rt_mute(struct rt_device *dev) +static void rt_mute(struct rtrack2 *dev) { - if(dev->muted) + if (dev->muted) return; - spin_lock(&lock); - outb(1, io); - spin_unlock(&lock); + mutex_lock(&dev->lock); + outb(1, dev->io); + mutex_unlock(&dev->lock); + mutex_unlock(&dev->lock); dev->muted = 1; } -static void rt_unmute(struct rt_device *dev) +static void rt_unmute(struct rtrack2 *dev) { if(dev->muted == 0) return; - spin_lock(&lock); - outb(0, io); - spin_unlock(&lock); + mutex_lock(&dev->lock); + outb(0, dev->io); + mutex_unlock(&dev->lock); dev->muted = 0; } -static void zero(void) +static void zero(struct rtrack2 *dev) { - outb_p(1, io); - outb_p(3, io); - outb_p(1, io); + outb_p(1, dev->io); + outb_p(3, dev->io); + outb_p(1, dev->io); } -static void one(void) +static void one(struct rtrack2 *dev) { - outb_p(5, io); - outb_p(7, io); - outb_p(5, io); + outb_p(5, dev->io); + outb_p(7, dev->io); + outb_p(5, dev->io); } -static int rt_setfreq(struct rt_device *dev, unsigned long freq) +static int rt_setfreq(struct rtrack2 *dev, unsigned long freq) { int i; + mutex_lock(&dev->lock); + dev->curfreq = freq; freq = freq / 200 + 856; - spin_lock(&lock); - - outb_p(0xc8, io); - outb_p(0xc9, io); - outb_p(0xc9, io); + outb_p(0xc8, dev->io); + outb_p(0xc9, dev->io); + outb_p(0xc9, dev->io); for (i = 0; i < 10; i++) - zero (); + zero(dev); for (i = 14; i >= 0; i--) if (freq & (1 << i)) - one (); + one(dev); else - zero (); + zero(dev); - outb_p(0xc8, io); + outb_p(0xc8, dev->io); if (!dev->muted) - outb_p(0, io); + outb_p(0, dev->io); - spin_unlock(&lock); + mutex_unlock(&dev->lock); return 0; } @@ -129,61 +122,61 @@ static int vidioc_querycap(struct file *file, void *priv, { strlcpy(v->driver, "radio-rtrack2", sizeof(v->driver)); strlcpy(v->card, "RadioTrack II", sizeof(v->card)); - sprintf(v->bus_info, "ISA"); + strlcpy(v->bus_info, "ISA", sizeof(v->bus_info)); v->version = RADIO_VERSION; - v->capabilities = V4L2_CAP_TUNER; + v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; return 0; } static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - if (v->index > 0) - return -EINVAL; - - return 0; + return v->index ? -EINVAL : 0; } -static int rt_getsigstr(struct rt_device *dev) +static int rt_getsigstr(struct rtrack2 *dev) { - if (inb(io) & 2) /* bit set = no signal present */ - return 0; - return 1; /* signal present */ + int sig = 1; + + mutex_lock(&dev->lock); + if (inb(dev->io) & 2) /* bit set = no signal present */ + sig = 0; + mutex_unlock(&dev->lock); + return sig; } static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct rt_device *rt = video_drvdata(file); + struct rtrack2 *rt = video_drvdata(file); if (v->index > 0) return -EINVAL; - strcpy(v->name, "FM"); + strlcpy(v->name, "FM", sizeof(v->name)); v->type = V4L2_TUNER_RADIO; - v->rangelow = (88*16000); - v->rangehigh = (108*16000); + 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); + 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); + struct rtrack2 *rt = video_drvdata(file); - rt->curfreq = f->frequency; - rt_setfreq(rt, rt->curfreq); + rt_setfreq(rt, f->frequency); return 0; } static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct rt_device *rt = video_drvdata(file); + struct rtrack2 *rt = video_drvdata(file); f->type = V4L2_TUNER_RADIO; f->frequency = rt->curfreq; @@ -193,14 +186,11 @@ static int vidioc_g_frequency(struct file *file, void *priv, 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; - } + switch (qc->id) { + case V4L2_CID_AUDIO_MUTE: + return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); + case V4L2_CID_AUDIO_VOLUME: + return v4l2_ctrl_query_fill(qc, 0, 65535, 65535, 65535); } return -EINVAL; } @@ -208,7 +198,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct rt_device *rt = video_drvdata(file); + struct rtrack2 *rt = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -227,7 +217,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv, static int vidioc_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct rt_device *rt = video_drvdata(file); + struct rtrack2 *rt = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: @@ -246,17 +236,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv, 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; @@ -265,36 +244,38 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) { - if (i != 0) - return -EINVAL; - return 0; + return i ? -EINVAL : 0; } -static int vidioc_s_audio(struct file *file, void *priv, +static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) { - if (a->index != 0) - return -EINVAL; + a->index = 0; + strlcpy(a->name, "Radio", sizeof(a->name)); + a->capability = V4L2_AUDCAP_STEREO; return 0; } -static struct rt_device rtrack2_unit; +static int vidioc_s_audio(struct file *file, void *priv, + struct v4l2_audio *a) +{ + return a->index ? -EINVAL : 0; +} -static int rtrack2_exclusive_open(struct file *file) +static int rtrack2_open(struct file *file) { - return test_and_set_bit(0, &rtrack2_unit.in_use) ? -EBUSY : 0; + return 0; } -static int rtrack2_exclusive_release(struct file *file) +static int rtrack2_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, + .open = rtrack2_open, + .release = rtrack2_release, .ioctl = video_ioctl2, }; @@ -313,62 +294,61 @@ static const struct v4l2_ioctl_ops rtrack2_ioctl_ops = { .vidioc_s_input = vidioc_s_input, }; -static struct video_device rtrack2_radio = { - .name = "RadioTrack II radio", - .fops = &rtrack2_fops, - .ioctl_ops = &rtrack2_ioctl_ops, - .release = video_device_release_empty, -}; - 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"); + struct rtrack2 *dev = &rtrack2_card; + struct v4l2_device *v4l2_dev = &dev->v4l2_dev; + int res; + + strlcpy(v4l2_dev->name, "rtrack2", sizeof(v4l2_dev->name)); + dev->io = io; + if (dev->io == -1) { + v4l2_err(v4l2_dev, "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); + if (!request_region(dev->io, 4, "rtrack2")) { + v4l2_err(v4l2_dev, "port 0x%x already in use\n", dev->io); return -EBUSY; } - video_set_drvdata(&rtrack2_radio, &rtrack2_unit); + res = v4l2_device_register(NULL, v4l2_dev); + if (res < 0) { + release_region(dev->io, 4); + v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); + return res; + } - spin_lock_init(&lock); - if (video_register_device(&rtrack2_radio, VFL_TYPE_RADIO, radio_nr) < 0) { - release_region(io, 4); + strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name)); + dev->vdev.v4l2_dev = v4l2_dev; + dev->vdev.fops = &rtrack2_fops; + dev->vdev.ioctl_ops = &rtrack2_ioctl_ops; + dev->vdev.release = video_device_release_empty; + video_set_drvdata(&dev->vdev, dev); + + mutex_init(&dev->lock); + if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) { + v4l2_device_unregister(v4l2_dev); + release_region(dev->io, 4); return -EINVAL; } - printk(KERN_INFO "AIMSlab Radiotrack II card driver.\n"); + v4l2_info(v4l2_dev, "AIMSlab Radiotrack II card driver.\n"); /* mute card - prevents noisy bootups */ - outb(1, io); - rtrack2_unit.muted = 1; + outb(1, dev->io); + dev->muted = 1; return 0; } -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); + struct rtrack2 *dev = &rtrack2_card; + + video_unregister_device(&dev->vdev); + v4l2_device_unregister(&dev->v4l2_dev); + release_region(dev->io, 4); } module_init(rtrack2_init); -module_exit(rtrack2_cleanup_module); - -/* - Local variables: - compile-command: "mmake" - End: -*/ +module_exit(rtrack2_exit); -- 2.41.0