samsung-laptop: move code into init/exit functions
Create _init()/_exit() function for each subsystem, remove the local struct samsung_laptop * and only keep a struct platform_device * that can only be used in samsung_init() and samsung_exit(). Signed-off-by: Corentin Chary <corentincj@iksaif.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Corentin Chary
Matthew Garrett
parent
a6df48943a
commit
5dea7a2094
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@ -226,14 +226,14 @@ struct samsung_laptop {
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struct mutex sabi_mutex;
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struct platform_device *pdev;
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struct platform_device *platform_device;
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struct backlight_device *backlight_device;
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struct rfkill *rfk;
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bool has_stepping_quirk;
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};
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static struct samsung_laptop *samsung;
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static bool force;
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module_param(force, bool, 0);
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@ -244,7 +244,8 @@ static bool debug;
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module_param(debug, bool, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(debug, "Debug enabled or not");
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static int sabi_get_command(u8 command, struct sabi_retval *sretval)
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static int sabi_get_command(struct samsung_laptop *samsung,
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u8 command, struct sabi_retval *sretval)
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{
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const struct sabi_config *config = samsung->config;
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int retval = 0;
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@ -291,7 +292,8 @@ exit:
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}
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static int sabi_set_command(u8 command, u8 data)
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static int sabi_set_command(struct samsung_laptop *samsung,
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u8 command, u8 data)
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{
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const struct sabi_config *config = samsung->config;
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int retval = 0;
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@ -326,53 +328,53 @@ static int sabi_set_command(u8 command, u8 data)
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return retval;
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}
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static void test_backlight(void)
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static void test_backlight(struct samsung_laptop *samsung)
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{
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const struct sabi_commands *commands = &samsung->config->commands;
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struct sabi_retval sretval;
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sabi_get_command(commands->get_backlight, &sretval);
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sabi_get_command(samsung, commands->get_backlight, &sretval);
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printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
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sabi_set_command(commands->set_backlight, 0);
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sabi_set_command(samsung, commands->set_backlight, 0);
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printk(KERN_DEBUG "backlight should be off\n");
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sabi_get_command(commands->get_backlight, &sretval);
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sabi_get_command(samsung, commands->get_backlight, &sretval);
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printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
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msleep(1000);
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sabi_set_command(commands->set_backlight, 1);
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sabi_set_command(samsung, commands->set_backlight, 1);
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printk(KERN_DEBUG "backlight should be on\n");
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sabi_get_command(commands->get_backlight, &sretval);
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sabi_get_command(samsung, commands->get_backlight, &sretval);
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printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
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}
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static void test_wireless(void)
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static void test_wireless(struct samsung_laptop *samsung)
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{
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const struct sabi_commands *commands = &samsung->config->commands;
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struct sabi_retval sretval;
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sabi_get_command(commands->get_wireless_button, &sretval);
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sabi_get_command(samsung, commands->get_wireless_button, &sretval);
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printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
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sabi_set_command(commands->set_wireless_button, 0);
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sabi_set_command(samsung, commands->set_wireless_button, 0);
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printk(KERN_DEBUG "wireless led should be off\n");
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sabi_get_command(commands->get_wireless_button, &sretval);
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sabi_get_command(samsung, commands->get_wireless_button, &sretval);
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printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
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msleep(1000);
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sabi_set_command(commands->set_wireless_button, 1);
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sabi_set_command(samsung, commands->set_wireless_button, 1);
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printk(KERN_DEBUG "wireless led should be on\n");
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sabi_get_command(commands->get_wireless_button, &sretval);
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sabi_get_command(samsung, commands->get_wireless_button, &sretval);
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printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
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}
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static u8 read_brightness(void)
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static int read_brightness(struct samsung_laptop *samsung)
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{
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const struct sabi_config *config = samsung->config;
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const struct sabi_commands *commands = &samsung->config->commands;
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@ -380,7 +382,7 @@ static u8 read_brightness(void)
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int user_brightness = 0;
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int retval;
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retval = sabi_get_command(commands->get_brightness,
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retval = sabi_get_command(samsung, commands->get_brightness,
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&sretval);
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if (!retval) {
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user_brightness = sretval.retval[0];
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@ -392,7 +394,7 @@ static u8 read_brightness(void)
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return user_brightness;
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}
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static void set_brightness(u8 user_brightness)
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static void set_brightness(struct samsung_laptop *samsung, u8 user_brightness)
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{
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const struct sabi_config *config = samsung->config;
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const struct sabi_commands *commands = &samsung->config->commands;
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@ -403,25 +405,27 @@ static void set_brightness(u8 user_brightness)
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* short circuit if the specified level is what's already set
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* to prevent the screen from flickering needlessly
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*/
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if (user_brightness == read_brightness())
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if (user_brightness == read_brightness(samsung))
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return;
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sabi_set_command(commands->set_brightness, 0);
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sabi_set_command(samsung, commands->set_brightness, 0);
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}
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sabi_set_command(commands->set_brightness, user_level);
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sabi_set_command(samsung, commands->set_brightness, user_level);
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}
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static int get_brightness(struct backlight_device *bd)
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{
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return (int)read_brightness();
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struct samsung_laptop *samsung = bl_get_data(bd);
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return read_brightness(samsung);
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}
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static void check_for_stepping_quirk(void)
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static void check_for_stepping_quirk(struct samsung_laptop *samsung)
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{
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u8 initial_level;
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u8 check_level;
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u8 orig_level = read_brightness();
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int initial_level;
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int check_level;
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int orig_level = read_brightness(samsung);
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/*
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* Some laptops exhibit the strange behaviour of stepping toward
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@ -431,9 +435,9 @@ static void check_for_stepping_quirk(void)
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*/
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if (orig_level == 0)
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set_brightness(1);
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set_brightness(samsung, 1);
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initial_level = read_brightness();
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initial_level = read_brightness(samsung);
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if (initial_level <= 2)
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check_level = initial_level + 2;
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@ -441,26 +445,28 @@ static void check_for_stepping_quirk(void)
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check_level = initial_level - 2;
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samsung->has_stepping_quirk = false;
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set_brightness(check_level);
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set_brightness(samsung, check_level);
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if (read_brightness() != check_level) {
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if (read_brightness(samsung) != check_level) {
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samsung->has_stepping_quirk = true;
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pr_info("enabled workaround for brightness stepping quirk\n");
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}
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set_brightness(orig_level);
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set_brightness(samsung, orig_level);
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}
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static int update_status(struct backlight_device *bd)
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{
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struct samsung_laptop *samsung = bl_get_data(bd);
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const struct sabi_commands *commands = &samsung->config->commands;
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set_brightness(bd->props.brightness);
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set_brightness(samsung, bd->props.brightness);
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if (bd->props.power == FB_BLANK_UNBLANK)
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sabi_set_command(commands->set_backlight, 1);
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sabi_set_command(samsung, commands->set_backlight, 1);
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else
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sabi_set_command(commands->set_backlight, 0);
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sabi_set_command(samsung, commands->set_backlight, 0);
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return 0;
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}
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@ -471,6 +477,7 @@ static const struct backlight_ops backlight_ops = {
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static int rfkill_set(void *data, bool blocked)
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{
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struct samsung_laptop *samsung = data;
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const struct sabi_commands *commands = &samsung->config->commands;
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/* Do something with blocked...*/
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@ -479,9 +486,9 @@ static int rfkill_set(void *data, bool blocked)
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* blocked == true is off
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*/
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if (blocked)
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sabi_set_command(commands->set_wireless_button, 0);
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sabi_set_command(samsung, commands->set_wireless_button, 0);
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else
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sabi_set_command(commands->set_wireless_button, 1);
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sabi_set_command(samsung, commands->set_wireless_button, 1);
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return 0;
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}
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@ -490,40 +497,18 @@ static struct rfkill_ops rfkill_ops = {
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.set_block = rfkill_set,
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};
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static int init_wireless(struct platform_device *pdev)
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{
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int retval;
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samsung->rfk = rfkill_alloc("samsung-wifi", &samsung->pdev->dev, RFKILL_TYPE_WLAN,
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&rfkill_ops, NULL);
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if (!samsung->rfk)
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return -ENOMEM;
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retval = rfkill_register(samsung->rfk);
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if (retval) {
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rfkill_destroy(samsung->rfk);
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return -ENODEV;
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}
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return 0;
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}
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static void destroy_wireless(void)
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{
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rfkill_unregister(samsung->rfk);
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rfkill_destroy(samsung->rfk);
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}
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static ssize_t get_performance_level(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct samsung_laptop *samsung = dev_get_drvdata(dev);
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const struct sabi_config *config = samsung->config;
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const struct sabi_commands *commands = &config->commands;
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struct sabi_retval sretval;
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int retval;
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int i;
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/* Read the state */
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retval = sabi_get_command(config->commands.get_performance_level,
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retval = sabi_get_command(samsung, commands->get_performance_level,
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&sretval);
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if (retval)
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return retval;
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@ -540,32 +525,285 @@ static ssize_t set_performance_level(struct device *dev,
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struct device_attribute *attr, const char *buf,
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size_t count)
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{
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struct samsung_laptop *samsung = dev_get_drvdata(dev);
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const struct sabi_config *config = samsung->config;
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const struct sabi_commands *commands = &config->commands;
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int i;
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if (count >= 1) {
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int i;
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for (i = 0; config->performance_levels[i].name; ++i) {
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const struct sabi_performance_level *level =
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&config->performance_levels[i];
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if (!strncasecmp(level->name, buf, strlen(level->name))) {
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sabi_set_command(config->commands.set_performance_level,
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level->value);
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break;
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}
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if (count < 1)
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return count;
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for (i = 0; config->performance_levels[i].name; ++i) {
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const struct sabi_performance_level *level =
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&config->performance_levels[i];
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if (!strncasecmp(level->name, buf, strlen(level->name))) {
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sabi_set_command(samsung,
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commands->set_performance_level,
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level->value);
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break;
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}
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if (!config->performance_levels[i].name)
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return -EINVAL;
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}
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if (!config->performance_levels[i].name)
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return -EINVAL;
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return count;
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}
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static DEVICE_ATTR(performance_level, S_IWUSR | S_IRUGO,
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get_performance_level, set_performance_level);
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static int find_signature(void __iomem *memcheck, const char *testStr)
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{
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int i = 0;
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int loca;
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for (loca = 0; loca < 0xffff; loca++) {
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char temp = readb(memcheck + loca);
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if (temp == testStr[i]) {
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if (i == strlen(testStr)-1)
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break;
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++i;
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} else {
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i = 0;
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}
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}
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return loca;
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}
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static void samsung_rfkill_exit(struct samsung_laptop *samsung)
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{
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if (samsung->rfk) {
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rfkill_unregister(samsung->rfk);
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rfkill_destroy(samsung->rfk);
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samsung->rfk = NULL;
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}
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}
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static int __init samsung_rfkill_init(struct samsung_laptop *samsung)
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{
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int retval;
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samsung->rfk = rfkill_alloc("samsung-wifi",
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&samsung->platform_device->dev,
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RFKILL_TYPE_WLAN,
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&rfkill_ops, samsung);
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if (!samsung->rfk)
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return -ENOMEM;
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retval = rfkill_register(samsung->rfk);
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if (retval) {
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rfkill_destroy(samsung->rfk);
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samsung->rfk = NULL;
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return -ENODEV;
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}
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return 0;
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}
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static void samsung_backlight_exit(struct samsung_laptop *samsung)
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{
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if (samsung->backlight_device) {
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backlight_device_unregister(samsung->backlight_device);
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samsung->backlight_device = NULL;
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}
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}
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static int __init samsung_backlight_init(struct samsung_laptop *samsung)
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{
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struct backlight_device *bd;
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struct backlight_properties props;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.type = BACKLIGHT_PLATFORM;
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props.max_brightness = samsung->config->max_brightness -
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samsung->config->min_brightness;
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bd = backlight_device_register("samsung",
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&samsung->platform_device->dev,
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samsung, &backlight_ops,
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&props);
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if (IS_ERR(bd))
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return PTR_ERR(bd);
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samsung->backlight_device = bd;
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samsung->backlight_device->props.brightness = read_brightness(samsung);
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samsung->backlight_device->props.power = FB_BLANK_UNBLANK;
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backlight_update_status(samsung->backlight_device);
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return 0;
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}
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static void samsung_sysfs_exit(struct samsung_laptop *samsung)
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{
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device_remove_file(&samsung->platform_device->dev,
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&dev_attr_performance_level);
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}
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static int __init samsung_sysfs_init(struct samsung_laptop *samsung)
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{
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return device_create_file(&samsung->platform_device->dev,
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&dev_attr_performance_level);
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}
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static void samsung_sabi_exit(struct samsung_laptop *samsung)
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{
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const struct sabi_config *config = samsung->config;
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/* Turn off "Linux" mode in the BIOS */
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if (config && config->commands.set_linux != 0xff)
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sabi_set_command(samsung, config->commands.set_linux, 0x80);
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if (samsung->sabi_iface) {
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iounmap(samsung->sabi_iface);
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samsung->sabi_iface = NULL;
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}
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if (samsung->f0000_segment) {
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iounmap(samsung->f0000_segment);
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samsung->f0000_segment = NULL;
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}
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samsung->config = NULL;
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}
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static __init void samsung_sabi_infos(struct samsung_laptop *samsung, int loca)
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{
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const struct sabi_config *config = samsung->config;
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printk(KERN_DEBUG "This computer supports SABI==%x\n",
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loca + 0xf0000 - 6);
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printk(KERN_DEBUG "SABI header:\n");
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printk(KERN_DEBUG " SMI Port Number = 0x%04x\n",
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readw(samsung->sabi + config->header_offsets.port));
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printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n",
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readb(samsung->sabi + config->header_offsets.iface_func));
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printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n",
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readb(samsung->sabi + config->header_offsets.en_mem));
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printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n",
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readb(samsung->sabi + config->header_offsets.re_mem));
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printk(KERN_DEBUG " SABI data offset = 0x%04x\n",
|
||||
readw(samsung->sabi + config->header_offsets.data_offset));
|
||||
printk(KERN_DEBUG " SABI data segment = 0x%04x\n",
|
||||
readw(samsung->sabi + config->header_offsets.data_segment));
|
||||
}
|
||||
|
||||
static void __init samsung_sabi_selftest(struct samsung_laptop *samsung,
|
||||
unsigned int ifaceP)
|
||||
{
|
||||
const struct sabi_config *config = samsung->config;
|
||||
struct sabi_retval sretval;
|
||||
|
||||
printk(KERN_DEBUG "ifaceP = 0x%08x\n", ifaceP);
|
||||
printk(KERN_DEBUG "sabi_iface = %p\n", samsung->sabi_iface);
|
||||
|
||||
test_backlight(samsung);
|
||||
test_wireless(samsung);
|
||||
|
||||
sabi_get_command(samsung, config->commands.get_brightness, &sretval);
|
||||
printk(KERN_DEBUG "brightness = 0x%02x\n", sretval.retval[0]);
|
||||
}
|
||||
|
||||
static int __init samsung_sabi_init(struct samsung_laptop *samsung)
|
||||
{
|
||||
const struct sabi_config *config = NULL;
|
||||
const struct sabi_commands *commands;
|
||||
unsigned int ifaceP;
|
||||
int ret = 0;
|
||||
int i;
|
||||
int loca;
|
||||
|
||||
samsung->f0000_segment = ioremap_nocache(0xf0000, 0xffff);
|
||||
if (!samsung->f0000_segment) {
|
||||
pr_err("Can't map the segment at 0xf0000\n");
|
||||
ret = -EINVAL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* Try to find one of the signatures in memory to find the header */
|
||||
for (i = 0; sabi_configs[i].test_string != 0; ++i) {
|
||||
samsung->config = &sabi_configs[i];
|
||||
loca = find_signature(samsung->f0000_segment,
|
||||
samsung->config->test_string);
|
||||
if (loca != 0xffff)
|
||||
break;
|
||||
}
|
||||
|
||||
if (loca == 0xffff) {
|
||||
pr_err("This computer does not support SABI\n");
|
||||
ret = -ENODEV;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
config = samsung->config;
|
||||
commands = &config->commands;
|
||||
|
||||
/* point to the SMI port Number */
|
||||
loca += 1;
|
||||
samsung->sabi = (samsung->f0000_segment + loca);
|
||||
|
||||
if (debug)
|
||||
samsung_sabi_infos(samsung, loca);
|
||||
|
||||
/* Get a pointer to the SABI Interface */
|
||||
ifaceP = (readw(samsung->sabi + config->header_offsets.data_segment) & 0x0ffff) << 4;
|
||||
ifaceP += readw(samsung->sabi + config->header_offsets.data_offset) & 0x0ffff;
|
||||
samsung->sabi_iface = ioremap_nocache(ifaceP, 16);
|
||||
if (!samsung->sabi_iface) {
|
||||
pr_err("Can't remap %x\n", ifaceP);
|
||||
ret = -EINVAL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (debug)
|
||||
samsung_sabi_selftest(samsung, ifaceP);
|
||||
|
||||
/* Turn on "Linux" mode in the BIOS */
|
||||
if (commands->set_linux != 0xff) {
|
||||
int retval = sabi_set_command(samsung,
|
||||
commands->set_linux, 0x81);
|
||||
if (retval) {
|
||||
pr_warn("Linux mode was not set!\n");
|
||||
ret = -ENODEV;
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check for stepping quirk */
|
||||
check_for_stepping_quirk(samsung);
|
||||
|
||||
exit:
|
||||
if (ret)
|
||||
samsung_sabi_exit(samsung);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void samsung_platform_exit(struct samsung_laptop *samsung)
|
||||
{
|
||||
if (samsung->platform_device) {
|
||||
platform_device_unregister(samsung->platform_device);
|
||||
samsung->platform_device = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static int __init samsung_platform_init(struct samsung_laptop *samsung)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
pdev = platform_device_register_simple("samsung", -1, NULL, 0);
|
||||
if (IS_ERR(pdev))
|
||||
return PTR_ERR(pdev);
|
||||
|
||||
samsung->platform_device = pdev;
|
||||
platform_set_drvdata(samsung->platform_device, samsung);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init dmi_check_cb(const struct dmi_system_id *id)
|
||||
{
|
||||
pr_info("found laptop model '%s'\n",
|
||||
id->ident);
|
||||
pr_info("found laptop model '%s'\n", id->ident);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
|
@ -806,36 +1044,12 @@ static struct dmi_system_id __initdata samsung_dmi_table[] = {
|
|||
};
|
||||
MODULE_DEVICE_TABLE(dmi, samsung_dmi_table);
|
||||
|
||||
static int find_signature(void __iomem *memcheck, const char *testStr)
|
||||
{
|
||||
int i = 0;
|
||||
int loca;
|
||||
|
||||
for (loca = 0; loca < 0xffff; loca++) {
|
||||
char temp = readb(memcheck + loca);
|
||||
|
||||
if (temp == testStr[i]) {
|
||||
if (i == strlen(testStr)-1)
|
||||
break;
|
||||
++i;
|
||||
} else {
|
||||
i = 0;
|
||||
}
|
||||
}
|
||||
return loca;
|
||||
}
|
||||
static struct platform_device *samsung_platform_device;
|
||||
|
||||
static int __init samsung_init(void)
|
||||
{
|
||||
const struct sabi_config *config = NULL;
|
||||
const struct sabi_commands *commands;
|
||||
struct backlight_device *bd;
|
||||
struct backlight_properties props;
|
||||
struct sabi_retval sretval;
|
||||
unsigned int ifaceP;
|
||||
int i;
|
||||
int loca;
|
||||
int retval;
|
||||
struct samsung_laptop *samsung;
|
||||
int ret;
|
||||
|
||||
if (!force && !dmi_check_system(samsung_dmi_table))
|
||||
return -ENODEV;
|
||||
|
|
@ -846,159 +1060,56 @@ static int __init samsung_init(void)
|
|||
|
||||
mutex_init(&samsung->sabi_mutex);
|
||||
|
||||
samsung->f0000_segment = ioremap_nocache(0xf0000, 0xffff);
|
||||
if (!samsung->f0000_segment) {
|
||||
pr_err("Can't map the segment at 0xf0000\n");
|
||||
goto error_cant_map;
|
||||
}
|
||||
ret = samsung_platform_init(samsung);
|
||||
if (ret)
|
||||
goto error_platform;
|
||||
|
||||
/* Try to find one of the signatures in memory to find the header */
|
||||
for (i = 0; sabi_configs[i].test_string != 0; ++i) {
|
||||
samsung->config = &sabi_configs[i];
|
||||
loca = find_signature(samsung->f0000_segment,
|
||||
samsung->config->test_string);
|
||||
if (loca != 0xffff)
|
||||
break;
|
||||
}
|
||||
ret = samsung_sabi_init(samsung);
|
||||
if (ret)
|
||||
goto error_sabi;
|
||||
|
||||
if (loca == 0xffff) {
|
||||
pr_err("This computer does not support SABI\n");
|
||||
goto error_no_signature;
|
||||
}
|
||||
ret = samsung_sysfs_init(samsung);
|
||||
if (ret)
|
||||
goto error_sysfs;
|
||||
|
||||
config = samsung->config;
|
||||
commands = &config->commands;
|
||||
ret = samsung_backlight_init(samsung);
|
||||
if (ret)
|
||||
goto error_backlight;
|
||||
|
||||
/* point to the SMI port Number */
|
||||
loca += 1;
|
||||
samsung->sabi = (samsung->f0000_segment + loca);
|
||||
ret = samsung_rfkill_init(samsung);
|
||||
if (ret)
|
||||
goto error_rfkill;
|
||||
|
||||
if (debug) {
|
||||
printk(KERN_DEBUG "This computer supports SABI==%x\n",
|
||||
loca + 0xf0000 - 6);
|
||||
printk(KERN_DEBUG "SABI header:\n");
|
||||
printk(KERN_DEBUG " SMI Port Number = 0x%04x\n",
|
||||
readw(samsung->sabi +
|
||||
config->header_offsets.port));
|
||||
printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n",
|
||||
readb(samsung->sabi +
|
||||
config->header_offsets.iface_func));
|
||||
printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n",
|
||||
readb(samsung->sabi +
|
||||
config->header_offsets.en_mem));
|
||||
printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n",
|
||||
readb(samsung->sabi +
|
||||
config->header_offsets.re_mem));
|
||||
printk(KERN_DEBUG " SABI data offset = 0x%04x\n",
|
||||
readw(samsung->sabi +
|
||||
config->header_offsets.data_offset));
|
||||
printk(KERN_DEBUG " SABI data segment = 0x%04x\n",
|
||||
readw(samsung->sabi +
|
||||
config->header_offsets.data_segment));
|
||||
}
|
||||
samsung_platform_device = samsung->platform_device;
|
||||
return ret;
|
||||
|
||||
/* Get a pointer to the SABI Interface */
|
||||
ifaceP = (readw(samsung->sabi + config->header_offsets.data_segment) & 0x0ffff) << 4;
|
||||
ifaceP += readw(samsung->sabi + config->header_offsets.data_offset) & 0x0ffff;
|
||||
samsung->sabi_iface = ioremap_nocache(ifaceP, 16);
|
||||
if (!samsung->sabi_iface) {
|
||||
pr_err("Can't remap %x\n", ifaceP);
|
||||
goto error_no_signature;
|
||||
}
|
||||
if (debug) {
|
||||
printk(KERN_DEBUG "ifaceP = 0x%08x\n", ifaceP);
|
||||
printk(KERN_DEBUG "sabi_iface = %p\n", samsung->sabi_iface);
|
||||
|
||||
test_backlight();
|
||||
test_wireless();
|
||||
|
||||
retval = sabi_get_command(commands->get_brightness,
|
||||
&sretval);
|
||||
printk(KERN_DEBUG "brightness = 0x%02x\n", sretval.retval[0]);
|
||||
}
|
||||
|
||||
/* Turn on "Linux" mode in the BIOS */
|
||||
if (commands->set_linux != 0xff) {
|
||||
retval = sabi_set_command(commands->set_linux,
|
||||
0x81);
|
||||
if (retval) {
|
||||
pr_warn("Linux mode was not set!\n");
|
||||
goto error_no_platform;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check for stepping quirk */
|
||||
check_for_stepping_quirk();
|
||||
|
||||
/* knock up a platform device to hang stuff off of */
|
||||
samsung->pdev = platform_device_register_simple("samsung", -1, NULL, 0);
|
||||
if (IS_ERR(samsung->pdev))
|
||||
goto error_no_platform;
|
||||
|
||||
/* create a backlight device to talk to this one */
|
||||
memset(&props, 0, sizeof(struct backlight_properties));
|
||||
props.type = BACKLIGHT_PLATFORM;
|
||||
props.max_brightness = config->max_brightness -
|
||||
config->min_brightness;
|
||||
bd = backlight_device_register("samsung", &samsung->pdev->dev,
|
||||
NULL, &backlight_ops,
|
||||
&props);
|
||||
if (IS_ERR(bd))
|
||||
goto error_no_backlight;
|
||||
|
||||
samsung->backlight_device = bd;
|
||||
samsung->backlight_device->props.brightness = read_brightness();
|
||||
samsung->backlight_device->props.power = FB_BLANK_UNBLANK;
|
||||
backlight_update_status(samsung->backlight_device);
|
||||
|
||||
retval = init_wireless(samsung->pdev);
|
||||
if (retval)
|
||||
goto error_no_rfk;
|
||||
|
||||
retval = device_create_file(&samsung->pdev->dev,
|
||||
&dev_attr_performance_level);
|
||||
if (retval)
|
||||
goto error_file_create;
|
||||
|
||||
return 0;
|
||||
|
||||
error_file_create:
|
||||
destroy_wireless();
|
||||
|
||||
error_no_rfk:
|
||||
backlight_device_unregister(samsung->backlight_device);
|
||||
|
||||
error_no_backlight:
|
||||
platform_device_unregister(samsung->pdev);
|
||||
|
||||
error_no_platform:
|
||||
iounmap(samsung->sabi_iface);
|
||||
|
||||
error_no_signature:
|
||||
iounmap(samsung->f0000_segment);
|
||||
|
||||
error_cant_map:
|
||||
error_rfkill:
|
||||
samsung_backlight_exit(samsung);
|
||||
error_backlight:
|
||||
samsung_sysfs_exit(samsung);
|
||||
error_sysfs:
|
||||
samsung_sabi_exit(samsung);
|
||||
error_sabi:
|
||||
samsung_platform_exit(samsung);
|
||||
error_platform:
|
||||
kfree(samsung);
|
||||
samsung = NULL;
|
||||
return -EINVAL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void __exit samsung_exit(void)
|
||||
{
|
||||
const struct sabi_commands *commands = &samsung->config->commands;
|
||||
struct samsung_laptop *samsung;
|
||||
|
||||
/* Turn off "Linux" mode in the BIOS */
|
||||
if (commands->set_linux != 0xff)
|
||||
sabi_set_command(commands->set_linux, 0x80);
|
||||
samsung = platform_get_drvdata(samsung_platform_device);
|
||||
|
||||
samsung_rfkill_exit(samsung);
|
||||
samsung_backlight_exit(samsung);
|
||||
samsung_sysfs_exit(samsung);
|
||||
samsung_sabi_exit(samsung);
|
||||
samsung_platform_exit(samsung);
|
||||
|
||||
device_remove_file(&samsung->pdev->dev, &dev_attr_performance_level);
|
||||
backlight_device_unregister(samsung->backlight_device);
|
||||
destroy_wireless();
|
||||
iounmap(samsung->sabi_iface);
|
||||
iounmap(samsung->f0000_segment);
|
||||
platform_device_unregister(samsung->pdev);
|
||||
kfree(samsung);
|
||||
samsung = NULL;
|
||||
samsung_platform_device = NULL;
|
||||
}
|
||||
|
||||
module_init(samsung_init);
|
||||
|
|
|
|||
Loading…
Reference in New Issue