diff options
Diffstat (limited to 'recipes/linux/linux-kexecboot-2.6.24/tosa/0029-Support-using-VOLTAGE_-properties-for-apm-calculati.patch')
| -rw-r--r-- | recipes/linux/linux-kexecboot-2.6.24/tosa/0029-Support-using-VOLTAGE_-properties-for-apm-calculati.patch | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/recipes/linux/linux-kexecboot-2.6.24/tosa/0029-Support-using-VOLTAGE_-properties-for-apm-calculati.patch b/recipes/linux/linux-kexecboot-2.6.24/tosa/0029-Support-using-VOLTAGE_-properties-for-apm-calculati.patch new file mode 100644 index 0000000000..7347fd5a00 --- /dev/null +++ b/recipes/linux/linux-kexecboot-2.6.24/tosa/0029-Support-using-VOLTAGE_-properties-for-apm-calculati.patch @@ -0,0 +1,163 @@ +From 57d1450b4e5f27fa78c75895dc30213bde7191bc Mon Sep 17 00:00:00 2001 +From: Dmitry Baryshkov <dbaryshkov@gmail.com> +Date: Wed, 9 Jan 2008 02:08:18 +0300 +Subject: [PATCH 29/64] Support using VOLTAGE_* properties for apm calculations. It's pretty + dummy, but useful for batteries for which we can only get voltages. + +--- + drivers/power/apm_power.c | 63 ++++++++++++++++++++++++++++++++++++-------- + 1 files changed, 51 insertions(+), 12 deletions(-) + +diff --git a/drivers/power/apm_power.c b/drivers/power/apm_power.c +index bbf3ee1..526c96e 100644 +--- a/drivers/power/apm_power.c ++++ b/drivers/power/apm_power.c +@@ -13,6 +13,12 @@ + #include <linux/power_supply.h> + #include <linux/apm-emulation.h> + ++typedef enum { ++ SOURCE_ENERGY, ++ SOURCE_CHARGE, ++ SOURCE_VOLTAGE, ++} apm_source; ++ + #define PSY_PROP(psy, prop, val) psy->get_property(psy, \ + POWER_SUPPLY_PROP_##prop, val) + +@@ -87,7 +93,7 @@ static void find_main_battery(void) + } + } + +-static int calculate_time(int status, int using_charge) ++static int calculate_time(int status, apm_source source) + { + union power_supply_propval full; + union power_supply_propval empty; +@@ -106,20 +112,34 @@ static int calculate_time(int status, int using_charge) + return -1; + } + +- if (using_charge) { ++ switch (source) { ++ case SOURCE_CHARGE: + full_prop = POWER_SUPPLY_PROP_CHARGE_FULL; + full_design_prop = POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN; + empty_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY; + empty_design_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY; + cur_avg_prop = POWER_SUPPLY_PROP_CHARGE_AVG; + cur_now_prop = POWER_SUPPLY_PROP_CHARGE_NOW; +- } else { ++ break; ++ case SOURCE_ENERGY: + full_prop = POWER_SUPPLY_PROP_ENERGY_FULL; + full_design_prop = POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN; + empty_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY; + empty_design_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY; + cur_avg_prop = POWER_SUPPLY_PROP_ENERGY_AVG; + cur_now_prop = POWER_SUPPLY_PROP_ENERGY_NOW; ++ break; ++ case SOURCE_VOLTAGE: ++ full_prop = POWER_SUPPLY_PROP_VOLTAGE_MAX; ++ full_design_prop = POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN; ++ empty_prop = POWER_SUPPLY_PROP_VOLTAGE_MIN; ++ empty_design_prop = POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN; ++ cur_avg_prop = POWER_SUPPLY_PROP_VOLTAGE_AVG; ++ cur_now_prop = POWER_SUPPLY_PROP_VOLTAGE_NOW; ++ break; ++ default: ++ printk(KERN_ERR "Unsupported source: %d\n", source); ++ return -1; + } + + if (_MPSY_PROP(full_prop, &full)) { +@@ -146,7 +166,7 @@ static int calculate_time(int status, int using_charge) + return -((cur.intval - empty.intval) * 60L) / I.intval; + } + +-static int calculate_capacity(int using_charge) ++static int calculate_capacity(apm_source source) + { + enum power_supply_property full_prop, empty_prop; + enum power_supply_property full_design_prop, empty_design_prop; +@@ -154,20 +174,33 @@ static int calculate_capacity(int using_charge) + union power_supply_propval empty, full, cur; + int ret; + +- if (using_charge) { ++ switch (source) { ++ case SOURCE_CHARGE: + full_prop = POWER_SUPPLY_PROP_CHARGE_FULL; + empty_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY; + full_design_prop = POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN; + empty_design_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN; + now_prop = POWER_SUPPLY_PROP_CHARGE_NOW; + avg_prop = POWER_SUPPLY_PROP_CHARGE_AVG; +- } else { ++ break; ++ case SOURCE_ENERGY: + full_prop = POWER_SUPPLY_PROP_ENERGY_FULL; + empty_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY; + full_design_prop = POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN; + empty_design_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN; + now_prop = POWER_SUPPLY_PROP_ENERGY_NOW; + avg_prop = POWER_SUPPLY_PROP_ENERGY_AVG; ++ case SOURCE_VOLTAGE: ++ full_prop = POWER_SUPPLY_PROP_VOLTAGE_MAX; ++ empty_prop = POWER_SUPPLY_PROP_VOLTAGE_MIN; ++ full_design_prop = POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN; ++ empty_design_prop = POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN; ++ now_prop = POWER_SUPPLY_PROP_VOLTAGE_NOW; ++ avg_prop = POWER_SUPPLY_PROP_VOLTAGE_AVG; ++ break; ++ default: ++ printk(KERN_ERR "Unsupported source: %d\n", source); ++ return -1; + } + + if (_MPSY_PROP(full_prop, &full)) { +@@ -234,10 +267,12 @@ static void apm_battery_apm_get_power_status(struct apm_power_info *info) + info->battery_life = capacity.intval; + } else { + /* try calculate using energy */ +- info->battery_life = calculate_capacity(0); ++ info->battery_life = calculate_capacity(SOURCE_ENERGY); + /* if failed try calculate using charge instead */ + if (info->battery_life == -1) +- info->battery_life = calculate_capacity(1); ++ info->battery_life = calculate_capacity(SOURCE_CHARGE); ++ if (info->battery_life == -1) ++ info->battery_life = calculate_capacity(SOURCE_VOLTAGE); + } + + /* charging status */ +@@ -263,18 +298,22 @@ static void apm_battery_apm_get_power_status(struct apm_power_info *info) + !MPSY_PROP(TIME_TO_FULL_NOW, &time_to_full)) { + info->time = time_to_full.intval / 60; + } else { +- info->time = calculate_time(status.intval, 0); ++ info->time = calculate_time(status.intval, SOURCE_ENERGY); + if (info->time == -1) +- info->time = calculate_time(status.intval, 1); ++ info->time = calculate_time(status.intval, SOURCE_CHARGE); ++ if (info->time == -1) ++ info->time = calculate_time(status.intval, SOURCE_VOLTAGE); + } + } else { + if (!MPSY_PROP(TIME_TO_EMPTY_AVG, &time_to_empty) || + !MPSY_PROP(TIME_TO_EMPTY_NOW, &time_to_empty)) { + info->time = time_to_empty.intval / 60; + } else { +- info->time = calculate_time(status.intval, 0); ++ info->time = calculate_time(status.intval, SOURCE_ENERGY); ++ if (info->time == -1) ++ info->time = calculate_time(status.intval, SOURCE_CHARGE); + if (info->time == -1) +- info->time = calculate_time(status.intval, 1); ++ info->time = calculate_time(status.intval, SOURCE_VOLTAGE); + } + } + +-- +1.5.3.8 + |