diff options
author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-03-06 13:45:27 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:43:12 -0300 |
commit | 151c3f82529844c39ad52fe8d877dd2ffe06c70d (patch) | |
tree | 3327b459736e9954d460d43d0007ba3e9703f88c /drivers/media/radio/radio-aimslab.c | |
parent | f9996c95623d63de6f5957512976137bbac729f0 (diff) | |
download | op-kernel-dev-151c3f82529844c39ad52fe8d877dd2ffe06c70d.zip op-kernel-dev-151c3f82529844c39ad52fe8d877dd2ffe06c70d.tar.gz |
V4L/DVB (10880): radio-aimslab: convert to v4l2_device.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/radio-aimslab.c')
-rw-r--r-- | drivers/media/radio/radio-aimslab.c | 348 |
1 files changed, 167 insertions, 181 deletions
diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c index bfa13b8..ee204fd 100644 --- a/drivers/media/radio/radio-aimslab.c +++ b/drivers/media/radio/radio-aimslab.c @@ -32,14 +32,16 @@ #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/version.h> /* for KERNEL_VERSION MACRO */ +#include <linux/io.h> /* outb, outb_p */ +#include <linux/uaccess.h> /* copy to/from user */ +#include <media/v4l2-device.h> #include <media/v4l2-ioctl.h> -#include <linux/version.h> /* for KERNEL_VERSION MACRO */ -#define RADIO_VERSION KERNEL_VERSION(0,0,2) +MODULE_AUTHOR("M.Kirkwood"); +MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card."); +MODULE_LICENSE("GPL"); #ifndef CONFIG_RADIO_RTRACK_PORT #define CONFIG_RADIO_RTRACK_PORT -1 @@ -47,86 +49,95 @@ static int io = CONFIG_RADIO_RTRACK_PORT; static int radio_nr = -1; -static struct mutex lock; -struct rt_device +module_param(io, int, 0); +MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20f or 0x30f)"); +module_param(radio_nr, int, 0); + +#define RADIO_VERSION KERNEL_VERSION(0, 0, 2) + +struct rtrack { - unsigned long in_use; + struct v4l2_device v4l2_dev; + struct video_device vdev; int port; int curvol; unsigned long curfreq; int muted; + int io; + struct mutex lock; }; +static struct rtrack rtrack_card; /* local things */ static void sleep_delay(long n) { /* Sleep nicely for 'n' uS */ - int d=n/msecs_to_jiffies(1000); - if(!d) + int d = n / msecs_to_jiffies(1000); + if (!d) udelay(n); else msleep(jiffies_to_msecs(d)); } -static void rt_decvol(void) +static void rt_decvol(struct rtrack *rt) { - outb(0x58, io); /* volume down + sigstr + on */ + outb(0x58, rt->io); /* volume down + sigstr + on */ sleep_delay(100000); - outb(0xd8, io); /* volume steady + sigstr + on */ + outb(0xd8, rt->io); /* volume steady + sigstr + on */ } -static void rt_incvol(void) +static void rt_incvol(struct rtrack *rt) { - outb(0x98, io); /* volume up + sigstr + on */ + outb(0x98, rt->io); /* volume up + sigstr + on */ sleep_delay(100000); - outb(0xd8, io); /* volume steady + sigstr + on */ + outb(0xd8, rt->io); /* volume steady + sigstr + on */ } -static void rt_mute(struct rt_device *dev) +static void rt_mute(struct rtrack *rt) { - dev->muted = 1; - mutex_lock(&lock); - outb(0xd0, io); /* volume steady, off */ - mutex_unlock(&lock); + rt->muted = 1; + mutex_lock(&rt->lock); + outb(0xd0, rt->io); /* volume steady, off */ + mutex_unlock(&rt->lock); } -static int rt_setvol(struct rt_device *dev, int vol) +static int rt_setvol(struct rtrack *rt, int vol) { int i; - mutex_lock(&lock); + mutex_lock(&rt->lock); - if(vol == dev->curvol) { /* requested volume = current */ - if (dev->muted) { /* user is unmuting the card */ - dev->muted = 0; - outb (0xd8, io); /* enable card */ + if (vol == rt->curvol) { /* requested volume = current */ + if (rt->muted) { /* user is unmuting the card */ + rt->muted = 0; + outb(0xd8, rt->io); /* enable card */ } - mutex_unlock(&lock); + mutex_unlock(&rt->lock); return 0; } - if(vol == 0) { /* volume = 0 means mute the card */ - outb(0x48, io); /* volume down but still "on" */ + if (vol == 0) { /* volume = 0 means mute the card */ + outb(0x48, rt->io); /* volume down but still "on" */ sleep_delay(2000000); /* make sure it's totally down */ - outb(0xd0, io); /* volume steady, off */ - dev->curvol = 0; /* track the volume state! */ - mutex_unlock(&lock); + outb(0xd0, rt->io); /* volume steady, off */ + rt->curvol = 0; /* track the volume state! */ + mutex_unlock(&rt->lock); return 0; } - dev->muted = 0; - if(vol > dev->curvol) - for(i = dev->curvol; i < vol; i++) - rt_incvol(); + rt->muted = 0; + if (vol > rt->curvol) + for (i = rt->curvol; i < vol; i++) + rt_incvol(rt); else - for(i = dev->curvol; i > vol; i--) - rt_decvol(); + for (i = rt->curvol; i > vol; i--) + rt_decvol(rt); - dev->curvol = vol; - mutex_unlock(&lock); + rt->curvol = vol; + mutex_unlock(&rt->lock); return 0; } @@ -135,155 +146,137 @@ static int rt_setvol(struct rt_device *dev, int vol) * and bit 4 (+16) is to keep the signal strength meter enabled */ -static void send_0_byte(int port, struct rt_device *dev) +static void send_0_byte(struct rtrack *rt) { - if ((dev->curvol == 0) || (dev->muted)) { - outb_p(128+64+16+ 1, port); /* wr-enable + data low */ - outb_p(128+64+16+2+1, port); /* clock */ + if (rt->curvol == 0 || rt->muted) { + outb_p(128+64+16+ 1, rt->io); /* wr-enable + data low */ + outb_p(128+64+16+2+1, rt->io); /* clock */ } else { - outb_p(128+64+16+8+ 1, port); /* on + wr-enable + data low */ - outb_p(128+64+16+8+2+1, port); /* clock */ + outb_p(128+64+16+8+ 1, rt->io); /* on + wr-enable + data low */ + outb_p(128+64+16+8+2+1, rt->io); /* clock */ } sleep_delay(1000); } -static void send_1_byte(int port, struct rt_device *dev) +static void send_1_byte(struct rtrack *rt) { - if ((dev->curvol == 0) || (dev->muted)) { - outb_p(128+64+16+4 +1, port); /* wr-enable+data high */ - outb_p(128+64+16+4+2+1, port); /* clock */ + if (rt->curvol == 0 || rt->muted) { + outb_p(128+64+16+4 +1, rt->io); /* wr-enable+data high */ + outb_p(128+64+16+4+2+1, rt->io); /* clock */ } else { - outb_p(128+64+16+8+4 +1, port); /* on+wr-enable+data high */ - outb_p(128+64+16+8+4+2+1, port); /* clock */ + outb_p(128+64+16+8+4 +1, rt->io); /* on+wr-enable+data high */ + outb_p(128+64+16+8+4+2+1, rt->io); /* clock */ } sleep_delay(1000); } -static int rt_setfreq(struct rt_device *dev, unsigned long freq) +static int rt_setfreq(struct rtrack *rt, unsigned long freq) { int i; - /* adapted from radio-aztech.c */ + mutex_lock(&rt->lock); /* Stop other ops interfering */ + + rt->curfreq = freq; /* now uses VIDEO_TUNER_LOW for fine tuning */ freq += 171200; /* Add 10.7 MHz IF */ freq /= 800; /* Convert to 50 kHz units */ - mutex_lock(&lock); /* Stop other ops interfering */ - - send_0_byte (io, dev); /* 0: LSB of frequency */ + send_0_byte(rt); /* 0: LSB of frequency */ for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ if (freq & (1 << i)) - send_1_byte (io, dev); + send_1_byte(rt); else - send_0_byte (io, dev); + send_0_byte(rt); - send_0_byte (io, dev); /* 14: test bit - always 0 */ - send_0_byte (io, dev); /* 15: test bit - always 0 */ + send_0_byte(rt); /* 14: test bit - always 0 */ + send_0_byte(rt); /* 15: test bit - always 0 */ - send_0_byte (io, dev); /* 16: band data 0 - always 0 */ - send_0_byte (io, dev); /* 17: band data 1 - always 0 */ - send_0_byte (io, dev); /* 18: band data 2 - always 0 */ - send_0_byte (io, dev); /* 19: time base - always 0 */ + send_0_byte(rt); /* 16: band data 0 - always 0 */ + send_0_byte(rt); /* 17: band data 1 - always 0 */ + send_0_byte(rt); /* 18: band data 2 - always 0 */ + send_0_byte(rt); /* 19: time base - always 0 */ - send_0_byte (io, dev); /* 20: spacing (0 = 25 kHz) */ - send_1_byte (io, dev); /* 21: spacing (1 = 25 kHz) */ - send_0_byte (io, dev); /* 22: spacing (0 = 25 kHz) */ - send_1_byte (io, dev); /* 23: AM/FM (FM = 1, always) */ + send_0_byte(rt); /* 20: spacing (0 = 25 kHz) */ + send_1_byte(rt); /* 21: spacing (1 = 25 kHz) */ + send_0_byte(rt); /* 22: spacing (0 = 25 kHz) */ + send_1_byte(rt); /* 23: AM/FM (FM = 1, always) */ - if ((dev->curvol == 0) || (dev->muted)) - outb (0xd0, io); /* volume steady + sigstr */ + if (rt->curvol == 0 || rt->muted) + outb(0xd0, rt->io); /* volume steady + sigstr */ else - outb (0xd8, io); /* volume steady + sigstr + on */ + outb(0xd8, rt->io); /* volume steady + sigstr + on */ - mutex_unlock(&lock); + mutex_unlock(&rt->lock); return 0; } -static int rt_getsigstr(struct rt_device *dev) +static int rt_getsigstr(struct rtrack *rt) { - if (inb(io) & 2) /* bit set = no signal present */ - return 0; - return 1; /* signal present */ -} + int sig = 1; -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 = 0xff, - .step = 1, - .default_value = 0xff, - .type = V4L2_CTRL_TYPE_INTEGER, - } -}; + mutex_lock(&rt->lock); + if (inb(rt->io) & 2) /* bit set = no signal present */ + sig = 0; + mutex_unlock(&rt->lock); + return sig; +} static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *v) { strlcpy(v->driver, "radio-aimslab", sizeof(v->driver)); strlcpy(v->card, "RadioTrack", 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_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct rt_device *rt = video_drvdata(file); + struct rtrack *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 = (87*16000); - v->rangehigh = (108*16000); + v->rangelow = 87 * 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_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 vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct rt_device *rt = video_drvdata(file); + struct rtrack *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 rtrack *rt = video_drvdata(file); f->type = V4L2_TUNER_RADIO; f->frequency = rt->curfreq; @@ -293,14 +286,11 @@ 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, 0xff, 1, 0xff); } return -EINVAL; } @@ -308,14 +298,14 @@ 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 rtrack *rt = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: ctrl->value = rt->muted; return 0; case V4L2_CID_AUDIO_VOLUME: - ctrl->value = rt->curvol * 6554; + ctrl->value = rt->curvol; return 0; } return -EINVAL; @@ -324,33 +314,22 @@ 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 rtrack *rt = video_drvdata(file); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: if (ctrl->value) rt_mute(rt); else - rt_setvol(rt,rt->curvol); + rt_setvol(rt, rt->curvol); return 0; case V4L2_CID_AUDIO_VOLUME: - rt_setvol(rt,ctrl->value); + rt_setvol(rt, ctrl->value); 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; @@ -359,36 +338,38 @@ 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 rtrack_unit; +static int vidioc_s_audio(struct file *file, void *priv, + struct v4l2_audio *a) +{ + return a->index ? -EINVAL : 0; +} -static int rtrack_exclusive_open(struct file *file) +static int rtrack_open(struct file *file) { - return test_and_set_bit(0, &rtrack_unit.in_use) ? -EBUSY : 0; + return 0; } -static int rtrack_exclusive_release(struct file *file) +static int rtrack_release(struct file *file) { - clear_bit(0, &rtrack_unit.in_use); return 0; } static const struct v4l2_file_operations rtrack_fops = { .owner = THIS_MODULE, - .open = rtrack_exclusive_open, - .release = rtrack_exclusive_release, + .open = rtrack_open, + .release = rtrack_release, .ioctl = video_ioctl2, }; @@ -407,64 +388,69 @@ static const struct v4l2_ioctl_ops rtrack_ioctl_ops = { .vidioc_s_ctrl = vidioc_s_ctrl, }; -static struct video_device rtrack_radio = { - .name = "RadioTrack radio", - .fops = &rtrack_fops, - .ioctl_ops = &rtrack_ioctl_ops, - .release = video_device_release_empty, -}; - static int __init rtrack_init(void) { - if(io==-1) - { - printk(KERN_ERR "You must set an I/O address with io=0x???\n"); + struct rtrack *rt = &rtrack_card; + struct v4l2_device *v4l2_dev = &rt->v4l2_dev; + int res; + + strlcpy(v4l2_dev->name, "rtrack", sizeof(v4l2_dev->name)); + rt->io = io; + + if (rt->io == -1) { + v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n"); return -EINVAL; } - if (!request_region(io, 2, "rtrack")) - { - printk(KERN_ERR "rtrack: port 0x%x already in use\n", io); + if (!request_region(rt->io, 2, "rtrack")) { + v4l2_err(v4l2_dev, "port 0x%x already in use\n", rt->io); return -EBUSY; } - video_set_drvdata(&rtrack_radio, &rtrack_unit); + res = v4l2_device_register(NULL, v4l2_dev); + if (res < 0) { + release_region(rt->io, 2); + v4l2_err(v4l2_dev, "could not register v4l2_device\n"); + return res; + } - if (video_register_device(&rtrack_radio, VFL_TYPE_RADIO, radio_nr) < 0) { - release_region(io, 2); + strlcpy(rt->vdev.name, v4l2_dev->name, sizeof(rt->vdev.name)); + rt->vdev.v4l2_dev = v4l2_dev; + rt->vdev.fops = &rtrack_fops; + rt->vdev.ioctl_ops = &rtrack_ioctl_ops; + rt->vdev.release = video_device_release_empty; + video_set_drvdata(&rt->vdev, rt); + + if (video_register_device(&rt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) { + v4l2_device_unregister(&rt->v4l2_dev); + release_region(rt->io, 2); return -EINVAL; } - printk(KERN_INFO "AIMSlab RadioTrack/RadioReveal card driver.\n"); + v4l2_info(v4l2_dev, "AIMSlab RadioTrack/RadioReveal card driver.\n"); /* Set up the I/O locking */ - mutex_init(&lock); + mutex_init(&rt->lock); /* mute card - prevents noisy bootups */ /* this ensures that the volume is all the way down */ - outb(0x48, io); /* volume down but still "on" */ + outb(0x48, rt->io); /* volume down but still "on" */ sleep_delay(2000000); /* make sure it's totally down */ - outb(0xc0, io); /* steady volume, mute card */ - rtrack_unit.curvol = 0; + outb(0xc0, rt->io); /* steady volume, mute card */ return 0; } -MODULE_AUTHOR("M.Kirkwood"); -MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card."); -MODULE_LICENSE("GPL"); - -module_param(io, int, 0); -MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20f or 0x30f)"); -module_param(radio_nr, int, 0); - -static void __exit cleanup_rtrack_module(void) +static void __exit rtrack_exit(void) { - video_unregister_device(&rtrack_radio); - release_region(io,2); + struct rtrack *rt = &rtrack_card; + + video_unregister_device(&rt->vdev); + v4l2_device_unregister(&rt->v4l2_dev); + release_region(rt->io, 2); } module_init(rtrack_init); -module_exit(cleanup_rtrack_module); +module_exit(rtrack_exit); |