{ },
};
-static const struct sabi_config *sabi_config;
+struct samsung_laptop {
+ const struct sabi_config *config;
-static void __iomem *sabi;
-static void __iomem *sabi_iface;
-static void __iomem *f0000_segment;
-static struct backlight_device *backlight_device;
-static struct mutex sabi_mutex;
-static struct platform_device *sdev;
-static struct rfkill *rfk;
-static bool has_stepping_quirk;
+ void __iomem *sabi;
+ void __iomem *sabi_iface;
+ void __iomem *f0000_segment;
+
+ struct mutex sabi_mutex;
+
+ struct platform_device *pdev;
+ struct backlight_device *backlight_device;
+ struct rfkill *rfk;
+
+ bool has_stepping_quirk;
+};
+
+static struct samsung_laptop *samsung;
static bool force;
module_param(force, bool, 0);
static int sabi_get_command(u8 command, struct sabi_retval *sretval)
{
+ const struct sabi_config *config = samsung->config;
int retval = 0;
- u16 port = readw(sabi + sabi_config->header_offsets.port);
+ u16 port = readw(samsung->sabi + config->header_offsets.port);
u8 complete, iface_data;
- mutex_lock(&sabi_mutex);
+ mutex_lock(&samsung->sabi_mutex);
/* enable memory to be able to write to it */
- outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
+ outb(readb(samsung->sabi + config->header_offsets.en_mem), port);
/* write out the command */
- writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
- writew(command, sabi_iface + SABI_IFACE_SUB);
- writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
- outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
+ writew(config->main_function, samsung->sabi_iface + SABI_IFACE_MAIN);
+ writew(command, samsung->sabi_iface + SABI_IFACE_SUB);
+ writeb(0, samsung->sabi_iface + SABI_IFACE_COMPLETE);
+ outb(readb(samsung->sabi + config->header_offsets.iface_func), port);
/* write protect memory to make it safe */
- outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
+ outb(readb(samsung->sabi + config->header_offsets.re_mem), port);
/* see if the command actually succeeded */
- complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
- iface_data = readb(sabi_iface + SABI_IFACE_DATA);
+ complete = readb(samsung->sabi_iface + SABI_IFACE_COMPLETE);
+ iface_data = readb(samsung->sabi_iface + SABI_IFACE_DATA);
if (complete != 0xaa || iface_data == 0xff) {
pr_warn("SABI get command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
command, complete, iface_data);
* There are commands that need more, but not for the ones we
* currently care about.
*/
- sretval->retval[0] = readb(sabi_iface + SABI_IFACE_DATA);
- sretval->retval[1] = readb(sabi_iface + SABI_IFACE_DATA + 1);
- sretval->retval[2] = readb(sabi_iface + SABI_IFACE_DATA + 2);
- sretval->retval[3] = readb(sabi_iface + SABI_IFACE_DATA + 3);
+ sretval->retval[0] = readb(samsung->sabi_iface + SABI_IFACE_DATA);
+ sretval->retval[1] = readb(samsung->sabi_iface + SABI_IFACE_DATA + 1);
+ sretval->retval[2] = readb(samsung->sabi_iface + SABI_IFACE_DATA + 2);
+ sretval->retval[3] = readb(samsung->sabi_iface + SABI_IFACE_DATA + 3);
exit:
- mutex_unlock(&sabi_mutex);
+ mutex_unlock(&samsung->sabi_mutex);
return retval;
}
static int sabi_set_command(u8 command, u8 data)
{
+ const struct sabi_config *config = samsung->config;
int retval = 0;
- u16 port = readw(sabi + sabi_config->header_offsets.port);
+ u16 port = readw(samsung->sabi + config->header_offsets.port);
u8 complete, iface_data;
- mutex_lock(&sabi_mutex);
+ mutex_lock(&samsung->sabi_mutex);
/* enable memory to be able to write to it */
- outb(readb(sabi + sabi_config->header_offsets.en_mem), port);
+ outb(readb(samsung->sabi + config->header_offsets.en_mem), port);
/* write out the command */
- writew(sabi_config->main_function, sabi_iface + SABI_IFACE_MAIN);
- writew(command, sabi_iface + SABI_IFACE_SUB);
- writeb(0, sabi_iface + SABI_IFACE_COMPLETE);
- writeb(data, sabi_iface + SABI_IFACE_DATA);
- outb(readb(sabi + sabi_config->header_offsets.iface_func), port);
+ writew(config->main_function, samsung->sabi_iface + SABI_IFACE_MAIN);
+ writew(command, samsung->sabi_iface + SABI_IFACE_SUB);
+ writeb(0, samsung->sabi_iface + SABI_IFACE_COMPLETE);
+ writeb(data, samsung->sabi_iface + SABI_IFACE_DATA);
+ outb(readb(samsung->sabi + config->header_offsets.iface_func), port);
/* write protect memory to make it safe */
- outb(readb(sabi + sabi_config->header_offsets.re_mem), port);
+ outb(readb(samsung->sabi + config->header_offsets.re_mem), port);
/* see if the command actually succeeded */
- complete = readb(sabi_iface + SABI_IFACE_COMPLETE);
- iface_data = readb(sabi_iface + SABI_IFACE_DATA);
+ complete = readb(samsung->sabi_iface + SABI_IFACE_COMPLETE);
+ iface_data = readb(samsung->sabi_iface + SABI_IFACE_DATA);
if (complete != 0xaa || iface_data == 0xff) {
pr_warn("SABI set command 0x%02x failed with completion flag 0x%02x and data 0x%02x\n",
command, complete, iface_data);
retval = -EINVAL;
}
- mutex_unlock(&sabi_mutex);
+ mutex_unlock(&samsung->sabi_mutex);
return retval;
}
static void test_backlight(void)
{
+ const struct sabi_commands *commands = &samsung->config->commands;
struct sabi_retval sretval;
- sabi_get_command(sabi_config->commands.get_backlight, &sretval);
+ sabi_get_command(commands->get_backlight, &sretval);
printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
- sabi_set_command(sabi_config->commands.set_backlight, 0);
+ sabi_set_command(commands->set_backlight, 0);
printk(KERN_DEBUG "backlight should be off\n");
- sabi_get_command(sabi_config->commands.get_backlight, &sretval);
+ sabi_get_command(commands->get_backlight, &sretval);
printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
msleep(1000);
- sabi_set_command(sabi_config->commands.set_backlight, 1);
+ sabi_set_command(commands->set_backlight, 1);
printk(KERN_DEBUG "backlight should be on\n");
- sabi_get_command(sabi_config->commands.get_backlight, &sretval);
+ sabi_get_command(commands->get_backlight, &sretval);
printk(KERN_DEBUG "backlight = 0x%02x\n", sretval.retval[0]);
}
static void test_wireless(void)
{
+ const struct sabi_commands *commands = &samsung->config->commands;
struct sabi_retval sretval;
- sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
+ sabi_get_command(commands->get_wireless_button, &sretval);
printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
- sabi_set_command(sabi_config->commands.set_wireless_button, 0);
+ sabi_set_command(commands->set_wireless_button, 0);
printk(KERN_DEBUG "wireless led should be off\n");
- sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
+ sabi_get_command(commands->get_wireless_button, &sretval);
printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
msleep(1000);
- sabi_set_command(sabi_config->commands.set_wireless_button, 1);
+ sabi_set_command(commands->set_wireless_button, 1);
printk(KERN_DEBUG "wireless led should be on\n");
- sabi_get_command(sabi_config->commands.get_wireless_button, &sretval);
+ sabi_get_command(commands->get_wireless_button, &sretval);
printk(KERN_DEBUG "wireless led = 0x%02x\n", sretval.retval[0]);
}
static u8 read_brightness(void)
{
+ const struct sabi_config *config = samsung->config;
+ const struct sabi_commands *commands = &samsung->config->commands;
struct sabi_retval sretval;
int user_brightness = 0;
int retval;
- retval = sabi_get_command(sabi_config->commands.get_brightness,
+ retval = sabi_get_command(commands->get_brightness,
&sretval);
if (!retval) {
user_brightness = sretval.retval[0];
- if (user_brightness > sabi_config->min_brightness)
- user_brightness -= sabi_config->min_brightness;
+ if (user_brightness > config->min_brightness)
+ user_brightness -= config->min_brightness;
else
user_brightness = 0;
}
static void set_brightness(u8 user_brightness)
{
- u8 user_level = user_brightness + sabi_config->min_brightness;
+ const struct sabi_config *config = samsung->config;
+ const struct sabi_commands *commands = &samsung->config->commands;
+ u8 user_level = user_brightness + config->min_brightness;
- if (has_stepping_quirk && user_level != 0) {
+ if (samsung->has_stepping_quirk && user_level != 0) {
/*
* short circuit if the specified level is what's already set
* to prevent the screen from flickering needlessly
if (user_brightness == read_brightness())
return;
- sabi_set_command(sabi_config->commands.set_brightness, 0);
+ sabi_set_command(commands->set_brightness, 0);
}
- sabi_set_command(sabi_config->commands.set_brightness, user_level);
+ sabi_set_command(commands->set_brightness, user_level);
}
static int get_brightness(struct backlight_device *bd)
else
check_level = initial_level - 2;
- has_stepping_quirk = false;
+ samsung->has_stepping_quirk = false;
set_brightness(check_level);
if (read_brightness() != check_level) {
- has_stepping_quirk = true;
+ samsung->has_stepping_quirk = true;
pr_info("enabled workaround for brightness stepping quirk\n");
}
static int update_status(struct backlight_device *bd)
{
+ const struct sabi_commands *commands = &samsung->config->commands;
+
set_brightness(bd->props.brightness);
if (bd->props.power == FB_BLANK_UNBLANK)
- sabi_set_command(sabi_config->commands.set_backlight, 1);
+ sabi_set_command(commands->set_backlight, 1);
else
- sabi_set_command(sabi_config->commands.set_backlight, 0);
+ sabi_set_command(commands->set_backlight, 0);
return 0;
}
static int rfkill_set(void *data, bool blocked)
{
+ const struct sabi_commands *commands = &samsung->config->commands;
+
/* Do something with blocked...*/
/*
* blocked == false is on
* blocked == true is off
*/
if (blocked)
- sabi_set_command(sabi_config->commands.set_wireless_button, 0);
+ sabi_set_command(commands->set_wireless_button, 0);
else
- sabi_set_command(sabi_config->commands.set_wireless_button, 1);
+ sabi_set_command(commands->set_wireless_button, 1);
return 0;
}
.set_block = rfkill_set,
};
-static int init_wireless(struct platform_device *sdev)
+static int init_wireless(struct platform_device *pdev)
{
int retval;
- rfk = rfkill_alloc("samsung-wifi", &sdev->dev, RFKILL_TYPE_WLAN,
- &rfkill_ops, NULL);
- if (!rfk)
+ samsung->rfk = rfkill_alloc("samsung-wifi", &samsung->pdev->dev, RFKILL_TYPE_WLAN,
+ &rfkill_ops, NULL);
+ if (!samsung->rfk)
return -ENOMEM;
- retval = rfkill_register(rfk);
+ retval = rfkill_register(samsung->rfk);
if (retval) {
- rfkill_destroy(rfk);
+ rfkill_destroy(samsung->rfk);
return -ENODEV;
}
static void destroy_wireless(void)
{
- rfkill_unregister(rfk);
- rfkill_destroy(rfk);
+ rfkill_unregister(samsung->rfk);
+ rfkill_destroy(samsung->rfk);
}
static ssize_t get_performance_level(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ const struct sabi_config *config = samsung->config;
struct sabi_retval sretval;
int retval;
int i;
/* Read the state */
- retval = sabi_get_command(sabi_config->commands.get_performance_level,
+ retval = sabi_get_command(config->commands.get_performance_level,
&sretval);
if (retval)
return retval;
/* The logic is backwards, yeah, lots of fun... */
- for (i = 0; sabi_config->performance_levels[i].name; ++i) {
- if (sretval.retval[0] == sabi_config->performance_levels[i].value)
- return sprintf(buf, "%s\n", sabi_config->performance_levels[i].name);
+ for (i = 0; config->performance_levels[i].name; ++i) {
+ if (sretval.retval[0] == config->performance_levels[i].value)
+ return sprintf(buf, "%s\n", config->performance_levels[i].name);
}
return sprintf(buf, "%s\n", "unknown");
}
struct device_attribute *attr, const char *buf,
size_t count)
{
+ const struct sabi_config *config = samsung->config;
+
if (count >= 1) {
int i;
- for (i = 0; sabi_config->performance_levels[i].name; ++i) {
+ for (i = 0; config->performance_levels[i].name; ++i) {
const struct sabi_performance_level *level =
- &sabi_config->performance_levels[i];
+ &config->performance_levels[i];
if (!strncasecmp(level->name, buf, strlen(level->name))) {
- sabi_set_command(sabi_config->commands.set_performance_level,
+ sabi_set_command(config->commands.set_performance_level,
level->value);
break;
}
}
- if (!sabi_config->performance_levels[i].name)
+ if (!config->performance_levels[i].name)
return -EINVAL;
}
return count;
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 loca;
int retval;
- mutex_init(&sabi_mutex);
-
if (!force && !dmi_check_system(samsung_dmi_table))
return -ENODEV;
- f0000_segment = ioremap_nocache(0xf0000, 0xffff);
- if (!f0000_segment) {
+ samsung = kzalloc(sizeof(*samsung), GFP_KERNEL);
+ if (!samsung)
+ return -ENOMEM;
+
+ 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");
- return -EINVAL;
+ goto error_cant_map;
}
/* Try to find one of the signatures in memory to find the header */
for (i = 0; sabi_configs[i].test_string != 0; ++i) {
- sabi_config = &sabi_configs[i];
- loca = find_signature(f0000_segment, sabi_config->test_string);
+ samsung->config = &sabi_configs[i];
+ loca = find_signature(samsung->f0000_segment,
+ samsung->config->test_string);
if (loca != 0xffff)
break;
}
goto error_no_signature;
}
+ config = samsung->config;
+ commands = &config->commands;
+
/* point to the SMI port Number */
loca += 1;
- sabi = (f0000_segment + loca);
+ samsung->sabi = (samsung->f0000_segment + loca);
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(sabi + sabi_config->header_offsets.port));
+ readw(samsung->sabi +
+ config->header_offsets.port));
printk(KERN_DEBUG " SMI Interface Function = 0x%02x\n",
- readb(sabi + sabi_config->header_offsets.iface_func));
+ readb(samsung->sabi +
+ config->header_offsets.iface_func));
printk(KERN_DEBUG " SMI enable memory buffer = 0x%02x\n",
- readb(sabi + sabi_config->header_offsets.en_mem));
+ readb(samsung->sabi +
+ config->header_offsets.en_mem));
printk(KERN_DEBUG " SMI restore memory buffer = 0x%02x\n",
- readb(sabi + sabi_config->header_offsets.re_mem));
+ readb(samsung->sabi +
+ config->header_offsets.re_mem));
printk(KERN_DEBUG " SABI data offset = 0x%04x\n",
- readw(sabi + sabi_config->header_offsets.data_offset));
+ readw(samsung->sabi +
+ config->header_offsets.data_offset));
printk(KERN_DEBUG " SABI data segment = 0x%04x\n",
- readw(sabi + sabi_config->header_offsets.data_segment));
+ readw(samsung->sabi +
+ config->header_offsets.data_segment));
}
/* Get a pointer to the SABI Interface */
- ifaceP = (readw(sabi + sabi_config->header_offsets.data_segment) & 0x0ffff) << 4;
- ifaceP += readw(sabi + sabi_config->header_offsets.data_offset) & 0x0ffff;
- sabi_iface = ioremap_nocache(ifaceP, 16);
- if (!sabi_iface) {
+ 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", sabi_iface);
+ printk(KERN_DEBUG "sabi_iface = %p\n", samsung->sabi_iface);
test_backlight();
test_wireless();
- retval = sabi_get_command(sabi_config->commands.get_brightness,
+ 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 (sabi_config->commands.set_linux != 0xff) {
- retval = sabi_set_command(sabi_config->commands.set_linux,
+ if (commands->set_linux != 0xff) {
+ retval = sabi_set_command(commands->set_linux,
0x81);
if (retval) {
pr_warn("Linux mode was not set!\n");
check_for_stepping_quirk();
/* knock up a platform device to hang stuff off of */
- sdev = platform_device_register_simple("samsung", -1, NULL, 0);
- if (IS_ERR(sdev))
+ 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 = sabi_config->max_brightness -
- sabi_config->min_brightness;
- backlight_device = backlight_device_register("samsung", &sdev->dev,
- NULL, &backlight_ops,
- &props);
- if (IS_ERR(backlight_device))
+ 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;
- backlight_device->props.brightness = read_brightness();
- backlight_device->props.power = FB_BLANK_UNBLANK;
- backlight_update_status(backlight_device);
+ 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(sdev);
+ retval = init_wireless(samsung->pdev);
if (retval)
goto error_no_rfk;
- retval = device_create_file(&sdev->dev, &dev_attr_performance_level);
+ retval = device_create_file(&samsung->pdev->dev,
+ &dev_attr_performance_level);
if (retval)
goto error_file_create;
destroy_wireless();
error_no_rfk:
- backlight_device_unregister(backlight_device);
+ backlight_device_unregister(samsung->backlight_device);
error_no_backlight:
- platform_device_unregister(sdev);
+ platform_device_unregister(samsung->pdev);
error_no_platform:
- iounmap(sabi_iface);
+ iounmap(samsung->sabi_iface);
error_no_signature:
- iounmap(f0000_segment);
+ iounmap(samsung->f0000_segment);
+
+error_cant_map:
+ kfree(samsung);
+ samsung = NULL;
return -EINVAL;
}
static void __exit samsung_exit(void)
{
+ const struct sabi_commands *commands = &samsung->config->commands;
+
/* Turn off "Linux" mode in the BIOS */
- if (sabi_config->commands.set_linux != 0xff)
- sabi_set_command(sabi_config->commands.set_linux, 0x80);
+ if (commands->set_linux != 0xff)
+ sabi_set_command(commands->set_linux, 0x80);
- device_remove_file(&sdev->dev, &dev_attr_performance_level);
- backlight_device_unregister(backlight_device);
+ device_remove_file(&samsung->pdev->dev, &dev_attr_performance_level);
+ backlight_device_unregister(samsung->backlight_device);
destroy_wireless();
- iounmap(sabi_iface);
- iounmap(f0000_segment);
- platform_device_unregister(sdev);
+ iounmap(samsung->sabi_iface);
+ iounmap(samsung->f0000_segment);
+ platform_device_unregister(samsung->pdev);
+ kfree(samsung);
+ samsung = NULL;
}
module_init(samsung_init);
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