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path: root/drivers/platform/x86/acerhdf.c
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Diffstat (limited to 'drivers/platform/x86/acerhdf.c')
-rw-r--r--drivers/platform/x86/acerhdf.c151
1 files changed, 99 insertions, 52 deletions
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 7b2384d674d0..60f9cfcac93f 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -52,7 +52,7 @@
*/
#undef START_IN_KERNEL_MODE
-#define DRV_VER "0.5.22"
+#define DRV_VER "0.5.24"
/*
* According to the Atom N270 datasheet,
@@ -92,9 +92,9 @@ static unsigned int fanstate = ACERHDF_FAN_AUTO;
static char force_bios[16];
static char force_product[16];
static unsigned int prev_interval;
-struct thermal_zone_device *thz_dev;
-struct thermal_cooling_device *cl_dev;
-struct platform_device *acerhdf_dev;
+static struct thermal_zone_device *thz_dev;
+static struct thermal_cooling_device *cl_dev;
+static struct platform_device *acerhdf_dev;
module_param(kernelmode, uint, 0);
MODULE_PARM_DESC(kernelmode, "Kernel mode fan control on / off");
@@ -112,14 +112,12 @@ module_param_string(force_product, force_product, 16, 0);
MODULE_PARM_DESC(force_product, "Force BIOS product and omit BIOS check");
/*
- * cmd_off: to switch the fan completely off
- * chk_off: to check if the fan is off
+ * cmd_off: to switch the fan completely off and check if the fan is off
* cmd_auto: to set the BIOS in control of the fan. The BIOS regulates then
* the fan speed depending on the temperature
*/
struct fancmd {
u8 cmd_off;
- u8 chk_off;
u8 cmd_auto;
};
@@ -136,47 +134,81 @@ struct bios_settings_t {
/* Register addresses and values for different BIOS versions */
static const struct bios_settings_t bios_tbl[] = {
/* AOA110 */
- {"Acer", "AOA110", "v0.3109", 0x55, 0x58, {0x1f, 0x1f, 0x00} },
- {"Acer", "AOA110", "v0.3114", 0x55, 0x58, {0x1f, 0x1f, 0x00} },
- {"Acer", "AOA110", "v0.3301", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
- {"Acer", "AOA110", "v0.3304", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
- {"Acer", "AOA110", "v0.3305", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
- {"Acer", "AOA110", "v0.3307", 0x55, 0x58, {0xaf, 0xaf, 0x00} },
- {"Acer", "AOA110", "v0.3308", 0x55, 0x58, {0x21, 0x21, 0x00} },
- {"Acer", "AOA110", "v0.3309", 0x55, 0x58, {0x21, 0x21, 0x00} },
- {"Acer", "AOA110", "v0.3310", 0x55, 0x58, {0x21, 0x21, 0x00} },
+ {"Acer", "AOA110", "v0.3109", 0x55, 0x58, {0x1f, 0x00} },
+ {"Acer", "AOA110", "v0.3114", 0x55, 0x58, {0x1f, 0x00} },
+ {"Acer", "AOA110", "v0.3301", 0x55, 0x58, {0xaf, 0x00} },
+ {"Acer", "AOA110", "v0.3304", 0x55, 0x58, {0xaf, 0x00} },
+ {"Acer", "AOA110", "v0.3305", 0x55, 0x58, {0xaf, 0x00} },
+ {"Acer", "AOA110", "v0.3307", 0x55, 0x58, {0xaf, 0x00} },
+ {"Acer", "AOA110", "v0.3308", 0x55, 0x58, {0x21, 0x00} },
+ {"Acer", "AOA110", "v0.3309", 0x55, 0x58, {0x21, 0x00} },
+ {"Acer", "AOA110", "v0.3310", 0x55, 0x58, {0x21, 0x00} },
/* AOA150 */
- {"Acer", "AOA150", "v0.3114", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Acer", "AOA150", "v0.3301", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Acer", "AOA150", "v0.3304", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Acer", "AOA150", "v0.3305", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Acer", "AOA150", "v0.3307", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x20, 0x00} },
+ {"Acer", "AOA150", "v0.3114", 0x55, 0x58, {0x1f, 0x00} },
+ {"Acer", "AOA150", "v0.3301", 0x55, 0x58, {0x20, 0x00} },
+ {"Acer", "AOA150", "v0.3304", 0x55, 0x58, {0x20, 0x00} },
+ {"Acer", "AOA150", "v0.3305", 0x55, 0x58, {0x20, 0x00} },
+ {"Acer", "AOA150", "v0.3307", 0x55, 0x58, {0x20, 0x00} },
+ {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x00} },
+ {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x00} },
+ {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x00} },
/* Acer 1410 */
- {"Acer", "Aspire 1410", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
- {"Acer", "Aspire 1410", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v1.3308", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1410", "v1.3310", 0x55, 0x58, {0x9e, 0x00} },
/* Acer 1810xx */
- {"Acer", "Aspire 1810TZ", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
- {"Acer", "Aspire 1810T", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
- {"Acer", "Aspire 1810T", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
- {"Acer", "Aspire 1810TZ", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v1.3308", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v1.3308", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810TZ", "v1.3310", 0x55, 0x58, {0x9e, 0x00} },
+ {"Acer", "Aspire 1810T", "v1.3310", 0x55, 0x58, {0x9e, 0x00} },
+ /* Acer 531 */
+ {"Acer", "AO531h", "v0.3201", 0x55, 0x58, {0x20, 0x00} },
/* Gateway */
- {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x21, 0x00} },
- {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Gateway", "LT31", "v1.3103", 0x55, 0x58, {0x10, 0x0f, 0x00} },
- {"Gateway", "LT31", "v1.3201", 0x55, 0x58, {0x10, 0x0f, 0x00} },
- {"Gateway", "LT31", "v1.3302", 0x55, 0x58, {0x10, 0x0f, 0x00} },
+ {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x00} },
+ {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x00} },
+ {"Gateway", "LT31", "v1.3103", 0x55, 0x58, {0x9e, 0x00} },
+ {"Gateway", "LT31", "v1.3201", 0x55, 0x58, {0x9e, 0x00} },
+ {"Gateway", "LT31", "v1.3302", 0x55, 0x58, {0x9e, 0x00} },
/* Packard Bell */
- {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x21, 0x00} },
- {"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x21, 0x00} },
- {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x20, 0x00} },
- {"Packard Bell", "DOTMU", "v1.3303", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
- {"Packard Bell", "DOTMU", "v0.3120", 0x55, 0x58, {0x9e, 0x9e, 0x00} },
+ {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x00} },
+ {"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} },
+ {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x00} },
+ {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} },
+ {"Packard Bell", "DOTMU", "v1.3303", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMU", "v0.3120", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMU", "v0.3108", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMU", "v0.3113", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMU", "v0.3115", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMU", "v0.3117", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMU", "v0.3119", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMU", "v1.3204", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMA", "v1.3201", 0x55, 0x58, {0x9e, 0x00} },
+ {"Packard Bell", "DOTMA", "v1.3302", 0x55, 0x58, {0x9e, 0x00} },
/* pewpew-terminator */
- {"", "", "", 0, 0, {0, 0, 0} }
+ {"", "", "", 0, 0, {0, 0} }
};
static const struct bios_settings_t *bios_cfg __read_mostly;
@@ -200,7 +232,7 @@ static int acerhdf_get_fanstate(int *state)
if (ec_read(bios_cfg->fanreg, &fan))
return -EINVAL;
- if (fan != bios_cfg->cmd.chk_off)
+ if (fan != bios_cfg->cmd.cmd_off)
*state = ACERHDF_FAN_AUTO;
else
*state = ACERHDF_FAN_OFF;
@@ -374,7 +406,7 @@ static int acerhdf_get_crit_temp(struct thermal_zone_device *thermal,
}
/* bind callback functions to thermalzone */
-struct thermal_zone_device_ops acerhdf_dev_ops = {
+static struct thermal_zone_device_ops acerhdf_dev_ops = {
.bind = acerhdf_bind,
.unbind = acerhdf_unbind,
.get_temp = acerhdf_get_ec_temp,
@@ -449,7 +481,7 @@ err_out:
}
/* bind fan callbacks to fan device */
-struct thermal_cooling_device_ops acerhdf_cooling_ops = {
+static struct thermal_cooling_device_ops acerhdf_cooling_ops = {
.get_max_state = acerhdf_get_max_state,
.get_cur_state = acerhdf_get_cur_state,
.set_cur_state = acerhdf_set_cur_state,
@@ -518,6 +550,10 @@ static int acerhdf_check_hardware(void)
version = dmi_get_system_info(DMI_BIOS_VERSION);
product = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (!vendor || !version || !product) {
+ pr_err("error getting hardware information\n");
+ return -EINVAL;
+ }
pr_info("Acer Aspire One Fan driver, v.%s\n", DRV_VER);
@@ -579,17 +615,26 @@ static int acerhdf_register_platform(void)
return err;
acerhdf_dev = platform_device_alloc("acerhdf", -1);
- platform_device_add(acerhdf_dev);
+ if (!acerhdf_dev) {
+ err = -ENOMEM;
+ goto err_device_alloc;
+ }
+ err = platform_device_add(acerhdf_dev);
+ if (err)
+ goto err_device_add;
return 0;
+
+err_device_add:
+ platform_device_put(acerhdf_dev);
+err_device_alloc:
+ platform_driver_unregister(&acerhdf_driver);
+ return err;
}
static void acerhdf_unregister_platform(void)
{
- if (!acerhdf_dev)
- return;
-
- platform_device_del(acerhdf_dev);
+ platform_device_unregister(acerhdf_dev);
platform_driver_unregister(&acerhdf_driver);
}
@@ -633,7 +678,7 @@ static int __init acerhdf_init(void)
err = acerhdf_register_platform();
if (err)
- goto err_unreg;
+ goto out_err;
err = acerhdf_register_thermal();
if (err)
@@ -646,7 +691,7 @@ err_unreg:
acerhdf_unregister_platform();
out_err:
- return -ENODEV;
+ return err;
}
static void __exit acerhdf_exit(void)
@@ -662,11 +707,13 @@ MODULE_DESCRIPTION("Aspire One temperature and fan driver");
MODULE_ALIAS("dmi:*:*Acer*:pnAOA*:");
MODULE_ALIAS("dmi:*:*Acer*:pnAspire 1410*:");
MODULE_ALIAS("dmi:*:*Acer*:pnAspire 1810*:");
+MODULE_ALIAS("dmi:*:*Acer*:pnAO531*:");
MODULE_ALIAS("dmi:*:*Gateway*:pnAOA*:");
MODULE_ALIAS("dmi:*:*Gateway*:pnLT31*:");
MODULE_ALIAS("dmi:*:*Packard Bell*:pnAOA*:");
MODULE_ALIAS("dmi:*:*Packard Bell*:pnDOA*:");
MODULE_ALIAS("dmi:*:*Packard Bell*:pnDOTMU*:");
+MODULE_ALIAS("dmi:*:*Packard Bell*:pnDOTMA*:");
module_init(acerhdf_init);
module_exit(acerhdf_exit);