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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-20 09:37:45 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-20 09:37:45 -0700 |
commit | fb091be08d1acf184e8801dfdcace6e0cb19b1fe (patch) | |
tree | cbd0c4200fd8628d592167589ca790e36fc4ae26 /drivers/media/IR/ir-sysfs.c | |
parent | bd7fc2f2d807fdb254f7efc542f8eec3f23e289e (diff) | |
parent | e8d0416796d43a950ec7b65629e53419b2e22453 (diff) | |
download | op-kernel-dev-fb091be08d1acf184e8801dfdcace6e0cb19b1fe.zip op-kernel-dev-fb091be08d1acf184e8801dfdcace6e0cb19b1fe.tar.gz |
Merge branch 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (534 commits)
V4L/DVB (13554a): v4l: Use the video_drvdata function in drivers
V4L/DVB: vivi and mem2mem_testdev need slab.h to build
V4L/DVB: tm6000: bugfix image position
V4L/DVB: IR/imon: remove dead IMON_KEY_RELEASE_OFFSET
V4L/DVB: tm6000: README - add vbi
V4L/DVB: Fix unlock logic at medusa_video_init
V4L/DVB: fix dvb frontend lockup
V4L/DVB: s2255drv: remove dead code
V4L/DVB: s2255drv: return if vdev not found
V4L/DVB: ov511: cleanup: remove unneeded null check
V4L/DVB: media/mem2mem: dereferencing free memory
V4L/DVB: media/IR: Add missing include file to rc-map.c
V4L/DVB: dvb/stv6110x: cleanup error handling
V4L/DVB: ngene: Add lgdt3303 and mt2131 deps to Kconfig
V4L/DVB: ngene: start separating out DVB functions into separate file
V4L/DVB: ngene: split out card specific code into a separate file
V4L/DVB: ngene: split out i2c code into a separate file
V4L/DVB: ngene: add initial support for digital side of Avermedia m780
V4L/DVB: ngene: properly support boards where channel 0 isn't a TS input
V4L-DVB: ngene: make sure that tuner headers are included
...
Diffstat (limited to 'drivers/media/IR/ir-sysfs.c')
-rw-r--r-- | drivers/media/IR/ir-sysfs.c | 202 |
1 files changed, 146 insertions, 56 deletions
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c index e14e6c48..d7da63e 100644 --- a/drivers/media/IR/ir-sysfs.c +++ b/drivers/media/IR/ir-sysfs.c @@ -1,6 +1,6 @@ -/* ir-register.c - handle IR scancode->keycode tables +/* ir-sysfs.c - sysfs interface for RC devices (/sys/class/rc) * - * Copyright (C) 2009 by Mauro Carvalho Chehab <mchehab@redhat.com> + * Copyright (C) 2009-2010 by Mauro Carvalho Chehab <mchehab@redhat.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -15,15 +15,23 @@ #include <linux/slab.h> #include <linux/input.h> #include <linux/device.h> -#include <media/ir-core.h> +#include "ir-core-priv.h" #define IRRCV_NUM_DEVICES 256 /* bit array to represent IR sysfs device number */ static unsigned long ir_core_dev_number; -/* class for /sys/class/irrcv */ -static struct class *ir_input_class; +/* class for /sys/class/rc */ +static char *ir_devnode(struct device *dev, mode_t *mode) +{ + return kasprintf(GFP_KERNEL, "rc/%s", dev_name(dev)); +} + +static struct class ir_input_class = { + .name = "rc", + .devnode = ir_devnode, +}; /** * show_protocol() - shows the current IR protocol @@ -32,7 +40,7 @@ static struct class *ir_input_class; * @buf: a pointer to the output buffer * * This routine is a callback routine for input read the IR protocol type. - * it is trigged by reading /sys/class/irrcv/irrcv?/current_protocol. + * it is trigged by reading /sys/class/rc/rc?/current_protocol. * It returns the protocol name, as understood by the driver. */ static ssize_t show_protocol(struct device *d, @@ -48,13 +56,17 @@ static ssize_t show_protocol(struct device *d, if (ir_type == IR_TYPE_UNKNOWN) s = "Unknown"; else if (ir_type == IR_TYPE_RC5) - s = "RC-5"; - else if (ir_type == IR_TYPE_PD) - s = "Pulse/distance"; + s = "rc-5"; else if (ir_type == IR_TYPE_NEC) - s = "NEC"; + s = "nec"; + else if (ir_type == IR_TYPE_RC6) + s = "rc6"; + else if (ir_type == IR_TYPE_JVC) + s = "jvc"; + else if (ir_type == IR_TYPE_SONY) + s = "sony"; else - s = "Other"; + s = "other"; return sprintf(buf, "%s\n", s); } @@ -67,7 +79,7 @@ static ssize_t show_protocol(struct device *d, * @len: length of the input buffer * * This routine is a callback routine for changing the IR protocol type. - * it is trigged by reading /sys/class/irrcv/irrcv?/current_protocol. + * it is trigged by reading /sys/class/rc/rc?/current_protocol. * It changes the IR the protocol name, if the IR type is recognized * by the driver. * If an unknown protocol name is used, returns -EINVAL. @@ -78,23 +90,24 @@ static ssize_t store_protocol(struct device *d, size_t len) { struct ir_input_dev *ir_dev = dev_get_drvdata(d); - u64 ir_type = IR_TYPE_UNKNOWN; + u64 ir_type = 0; int rc = -EINVAL; unsigned long flags; char *buf; - buf = strsep((char **) &data, "\n"); - - if (!strcasecmp(buf, "rc-5")) - ir_type = IR_TYPE_RC5; - else if (!strcasecmp(buf, "pd")) - ir_type = IR_TYPE_PD; - else if (!strcasecmp(buf, "nec")) - ir_type = IR_TYPE_NEC; + while ((buf = strsep((char **) &data, " \n")) != NULL) { + if (!strcasecmp(buf, "rc-5") || !strcasecmp(buf, "rc5")) + ir_type |= IR_TYPE_RC5; + if (!strcasecmp(buf, "nec")) + ir_type |= IR_TYPE_NEC; + if (!strcasecmp(buf, "jvc")) + ir_type |= IR_TYPE_JVC; + if (!strcasecmp(buf, "sony")) + ir_type |= IR_TYPE_SONY; + } - if (ir_type == IR_TYPE_UNKNOWN) { - IR_dprintk(1, "Error setting protocol to %lld\n", - (long long)ir_type); + if (!ir_type) { + IR_dprintk(1, "Unknown protocol\n"); return -EINVAL; } @@ -112,25 +125,87 @@ static ssize_t store_protocol(struct device *d, ir_dev->rc_tab.ir_type = ir_type; spin_unlock_irqrestore(&ir_dev->rc_tab.lock, flags); - IR_dprintk(1, "Current protocol is %lld\n", + IR_dprintk(1, "Current protocol(s) is(are) %lld\n", (long long)ir_type); return len; } +static ssize_t show_supported_protocols(struct device *d, + struct device_attribute *mattr, char *buf) +{ + char *orgbuf = buf; + struct ir_input_dev *ir_dev = dev_get_drvdata(d); + + /* FIXME: doesn't support multiple protocols at the same time */ + if (ir_dev->props->allowed_protos == IR_TYPE_UNKNOWN) + buf += sprintf(buf, "unknown "); + if (ir_dev->props->allowed_protos & IR_TYPE_RC5) + buf += sprintf(buf, "rc-5 "); + if (ir_dev->props->allowed_protos & IR_TYPE_NEC) + buf += sprintf(buf, "nec "); + if (buf == orgbuf) + buf += sprintf(buf, "other "); + + buf += sprintf(buf - 1, "\n"); + + return buf - orgbuf; +} + +#define ADD_HOTPLUG_VAR(fmt, val...) \ + do { \ + int err = add_uevent_var(env, fmt, val); \ + if (err) \ + return err; \ + } while (0) + +static int ir_dev_uevent(struct device *device, struct kobj_uevent_env *env) +{ + struct ir_input_dev *ir_dev = dev_get_drvdata(device); + + if (ir_dev->rc_tab.name) + ADD_HOTPLUG_VAR("NAME=%s", ir_dev->rc_tab.name); + if (ir_dev->driver_name) + ADD_HOTPLUG_VAR("DRV_NAME=%s", ir_dev->driver_name); + + return 0; +} + /* * Static device attribute struct with the sysfs attributes for IR's */ -static DEVICE_ATTR(current_protocol, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(protocol, S_IRUGO | S_IWUSR, show_protocol, store_protocol); -static struct attribute *ir_dev_attrs[] = { - &dev_attr_current_protocol.attr, +static DEVICE_ATTR(supported_protocols, S_IRUGO | S_IWUSR, + show_supported_protocols, NULL); + +static struct attribute *ir_hw_dev_attrs[] = { + &dev_attr_protocol.attr, + &dev_attr_supported_protocols.attr, NULL, }; +static struct attribute_group ir_hw_dev_attr_grp = { + .attrs = ir_hw_dev_attrs, +}; + +static const struct attribute_group *ir_hw_dev_attr_groups[] = { + &ir_hw_dev_attr_grp, + NULL +}; + +static struct device_type rc_dev_type = { + .groups = ir_hw_dev_attr_groups, + .uevent = ir_dev_uevent, +}; + +static struct device_type ir_raw_dev_type = { + .uevent = ir_dev_uevent, +}; + /** - * ir_register_class() - creates the sysfs for /sys/class/irrcv/irrcv? + * ir_register_class() - creates the sysfs for /sys/class/rc/rc? * @input_dev: the struct input_dev descriptor of the device * * This routine is used to register the syfs code for IR class @@ -138,8 +213,7 @@ static struct attribute *ir_dev_attrs[] = { int ir_register_class(struct input_dev *input_dev) { int rc; - struct kobject *kobj; - + const char *path; struct ir_input_dev *ir_dev = input_get_drvdata(input_dev); int devno = find_first_zero_bit(&ir_core_dev_number, IRRCV_NUM_DEVICES); @@ -147,19 +221,36 @@ int ir_register_class(struct input_dev *input_dev) if (unlikely(devno < 0)) return devno; - ir_dev->attr.attrs = ir_dev_attrs; - ir_dev->class_dev = device_create(ir_input_class, NULL, - input_dev->dev.devt, ir_dev, - "irrcv%d", devno); - kobj = &ir_dev->class_dev->kobj; - - printk(KERN_WARNING "Creating IR device %s\n", kobject_name(kobj)); - rc = sysfs_create_group(kobj, &ir_dev->attr); - if (unlikely(rc < 0)) { - device_destroy(ir_input_class, input_dev->dev.devt); - return -ENOMEM; + if (ir_dev->props->driver_type == RC_DRIVER_SCANCODE) + ir_dev->dev.type = &rc_dev_type; + else + ir_dev->dev.type = &ir_raw_dev_type; + + ir_dev->dev.class = &ir_input_class; + ir_dev->dev.parent = input_dev->dev.parent; + dev_set_name(&ir_dev->dev, "rc%d", devno); + dev_set_drvdata(&ir_dev->dev, ir_dev); + rc = device_register(&ir_dev->dev); + if (rc) + return rc; + + + input_dev->dev.parent = &ir_dev->dev; + rc = input_register_device(input_dev); + if (rc < 0) { + device_del(&ir_dev->dev); + return rc; } + __module_get(THIS_MODULE); + + path = kobject_get_path(&ir_dev->dev.kobj, GFP_KERNEL); + printk(KERN_INFO "%s: %s as %s\n", + dev_name(&ir_dev->dev), + input_dev->name ? input_dev->name : "Unspecified device", + path ? path : "N/A"); + kfree(path); + ir_dev->devno = devno; set_bit(devno, &ir_core_dev_number); @@ -168,7 +259,7 @@ int ir_register_class(struct input_dev *input_dev) /** * ir_unregister_class() - removes the sysfs for sysfs for - * /sys/class/irrcv/irrcv? + * /sys/class/rc/rc? * @input_dev: the struct input_dev descriptor of the device * * This routine is used to unregister the syfs code for IR class @@ -176,36 +267,35 @@ int ir_register_class(struct input_dev *input_dev) void ir_unregister_class(struct input_dev *input_dev) { struct ir_input_dev *ir_dev = input_get_drvdata(input_dev); - struct kobject *kobj; clear_bit(ir_dev->devno, &ir_core_dev_number); + input_unregister_device(input_dev); + device_del(&ir_dev->dev); - kobj = &ir_dev->class_dev->kobj; - - sysfs_remove_group(kobj, &ir_dev->attr); - device_destroy(ir_input_class, input_dev->dev.devt); - - kfree(ir_dev->attr.name); + module_put(THIS_MODULE); } /* - * Init/exit code for the module. Basically, creates/removes /sys/class/irrcv + * Init/exit code for the module. Basically, creates/removes /sys/class/rc */ static int __init ir_core_init(void) { - ir_input_class = class_create(THIS_MODULE, "irrcv"); - if (IS_ERR(ir_input_class)) { - printk(KERN_ERR "ir_core: unable to register irrcv class\n"); - return PTR_ERR(ir_input_class); + int rc = class_register(&ir_input_class); + if (rc) { + printk(KERN_ERR "ir_core: unable to register rc class\n"); + return rc; } + /* Initialize/load the decoders/keymap code that will be used */ + ir_raw_init(); + return 0; } static void __exit ir_core_exit(void) { - class_destroy(ir_input_class); + class_unregister(&ir_input_class); } module_init(ir_core_init); |