diff --git a/samples/firmware_class/firmware_sample_driver.c b/samples/firmware_class/firmware_sample_driver.c index ff0f2f2bd1a..165cff98032 100644 --- a/samples/firmware_class/firmware_sample_driver.c +++ b/samples/firmware_class/firmware_sample_driver.c @@ -12,8 +12,7 @@ #include #include #include - -#include "linux/firmware.h" +#include static struct device ghost_device = { .bus_id = "ghost0", @@ -31,11 +30,14 @@ static void sample_firmware_load(char *firmware, int size) static void sample_probe_default(void) { /* uses the default method to get the firmware */ - const struct firmware *fw_entry; - printk(KERN_INFO "firmware_sample_driver: a ghost device got inserted :)\n"); + const struct firmware *fw_entry; + int retval; - if(request_firmware(&fw_entry, "sample_driver_fw", &ghost_device)!=0) - { + printk(KERN_INFO "firmware_sample_driver: " + "a ghost device got inserted :)\n"); + + retval = request_firmware(&fw_entry, "sample_driver_fw", &ghost_device); + if (retval) { printk(KERN_ERR "firmware_sample_driver: Firmware not available\n"); return; @@ -47,17 +49,20 @@ static void sample_probe_default(void) /* finish setting up the device */ } + static void sample_probe_specific(void) { + int retval; /* Uses some specific hotplug support to get the firmware from * userspace directly into the hardware, or via some sysfs file */ /* NOTE: This currently doesn't work */ - printk(KERN_INFO "firmware_sample_driver: a ghost device got inserted :)\n"); + printk(KERN_INFO "firmware_sample_driver: " + "a ghost device got inserted :)\n"); - if(request_firmware(NULL, "sample_driver_fw", &ghost_device)!=0) - { + retval = request_firmware(NULL, "sample_driver_fw", &ghost_device); + if (retval) { printk(KERN_ERR "firmware_sample_driver: Firmware load failed\n"); return; @@ -70,7 +75,7 @@ static void sample_probe_specific(void) } static void sample_probe_async_cont(const struct firmware *fw, void *context) { - if(!fw){ + if (!fw) { printk(KERN_ERR "firmware_sample_driver: firmware load failed\n"); return; @@ -80,19 +85,18 @@ static void sample_probe_async_cont(const struct firmware *fw, void *context) (char *)context); sample_firmware_load(fw->data, fw->size); } + static void sample_probe_async(void) { /* Let's say that I can't sleep */ int error; - error = request_firmware_nowait (THIS_MODULE, FW_ACTION_NOHOTPLUG, - "sample_driver_fw", &ghost_device, - "my device pointer", - sample_probe_async_cont); - if(error){ - printk(KERN_ERR - "firmware_sample_driver:" + error = request_firmware_nowait(THIS_MODULE, FW_ACTION_NOHOTPLUG, + "sample_driver_fw", &ghost_device, + "my device pointer", + sample_probe_async_cont); + if (error) + printk(KERN_ERR "firmware_sample_driver:" " request_firmware_nowait failed\n"); - } } static int sample_init(void) @@ -105,11 +109,12 @@ static int sample_init(void) sample_probe_async(); return 0; } + static void __exit sample_exit(void) { } -module_init (sample_init); -module_exit (sample_exit); +module_init(sample_init); +module_exit(sample_exit); MODULE_LICENSE("GPL"); diff --git a/samples/firmware_class/firmware_sample_firmware_class.c b/samples/firmware_class/firmware_sample_firmware_class.c index 2799c472133..9392116e47b 100644 --- a/samples/firmware_class/firmware_sample_firmware_class.c +++ b/samples/firmware_class/firmware_sample_firmware_class.c @@ -25,30 +25,27 @@ MODULE_LICENSE("GPL"); static inline struct class_device *to_class_dev(struct kobject *obj) { - return container_of(obj,struct class_device,kobj); + return container_of(obj, struct class_device, kobj); } + static inline struct class_device_attribute *to_class_dev_attr(struct attribute *_attr) { - return container_of(_attr,struct class_device_attribute,attr); + return container_of(_attr, struct class_device_attribute, attr); } -int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr); -int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr); - struct firmware_priv { char fw_id[FIRMWARE_NAME_MAX]; s32 loading:2; u32 abort:1; }; -extern struct class firmware_class; - static ssize_t firmware_loading_show(struct class_device *class_dev, char *buf) { struct firmware_priv *fw_priv = class_get_devdata(class_dev); return sprintf(buf, "%d\n", fw_priv->loading); } + static ssize_t firmware_loading_store(struct class_device *class_dev, const char *buf, size_t count) { @@ -57,7 +54,7 @@ static ssize_t firmware_loading_store(struct class_device *class_dev, fw_priv->loading = simple_strtol(buf, NULL, 10); - switch(fw_priv->loading){ + switch (fw_priv->loading) { case -1: /* abort load an panic */ break; @@ -65,7 +62,7 @@ static ssize_t firmware_loading_store(struct class_device *class_dev, /* setup load */ break; case 0: - if(prev_loading==1){ + if (prev_loading == 1) { /* finish load and get the device back to working * state */ } @@ -130,24 +127,24 @@ static int fw_setup_class_device(struct class_device *class_dev, class_dev->class = &firmware_class, class_set_devdata(class_dev, fw_priv); retval = class_device_register(class_dev); - if (retval){ + if (retval) { printk(KERN_ERR "%s: class_device_register failed\n", - __FUNCTION__); + __func__); goto error_free_fw_priv; } retval = sysfs_create_bin_file(&class_dev->kobj, &firmware_attr_data); - if (retval){ + if (retval) { printk(KERN_ERR "%s: sysfs_create_bin_file failed\n", - __FUNCTION__); + __func__); goto error_unreg_class_dev; } retval = class_device_create_file(class_dev, &class_device_attr_loading); - if (retval){ + if (retval) { printk(KERN_ERR "%s: class_device_create_file failed\n", - __FUNCTION__); + __func__); goto error_remove_data; } @@ -183,16 +180,16 @@ static int __init firmware_sample_init(void) device_initialize(&my_device); class_dev = kmalloc(sizeof(struct class_device), GFP_KERNEL); - if(!class_dev) + if (!class_dev) return -ENOMEM; error = fw_setup_class_device(class_dev, "my_firmware_image", &my_device); - if(error){ + if (error) { kfree(class_dev); return error; } - return 0; + return 0; } static void __exit firmware_sample_exit(void)