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yaml
---
r: 91391
b: refs/heads/master
c: 4b65fc8
h: refs/heads/master
i:
  91389: 2da9b36
  91387: 1d84809
  91383: d75b2ef
  91375: 4fd2bda
  91359: 13eb3fc
  91327: b54811e
  91263: 612afd7
  91135: 317bc7d
v: v3
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Greg Kroah-Hartman committed Apr 20, 2008
1 parent 1eddf27 commit 168191d
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Showing 3 changed files with 41 additions and 39 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: d289bf7bdd84d636054acb0b3d14a4708f8a8233
refs/heads/master: 4b65fc8cfbd1d1cfcc78865af72608e3b6cc9d9b
45 changes: 25 additions & 20 deletions trunk/samples/firmware_class/firmware_sample_driver.c
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Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/string.h>

#include "linux/firmware.h"
#include <linux/firmware.h>

static struct device ghost_device = {
.bus_id = "ghost0",
Expand All @@ -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;

printk(KERN_INFO "firmware_sample_driver: "
"a ghost device got inserted :)\n");

if(request_firmware(&fw_entry, "sample_driver_fw", &ghost_device)!=0)
{
retval = request_firmware(&fw_entry, "sample_driver_fw", &ghost_device);
if (retval) {
printk(KERN_ERR
"firmware_sample_driver: Firmware not available\n");
return;
Expand All @@ -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;
Expand All @@ -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;
Expand All @@ -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)
Expand All @@ -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");
33 changes: 15 additions & 18 deletions trunk/samples/firmware_class/firmware_sample_firmware_class.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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)
{
Expand All @@ -57,15 +54,15 @@ 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;
case 1:
/* setup load */
break;
case 0:
if(prev_loading==1){
if (prev_loading == 1) {
/* finish load and get the device back to working
* state */
}
Expand Down Expand Up @@ -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;
}

Expand Down Expand Up @@ -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)
Expand Down

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