X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Finput%2Fmouse%2Fcyapa.c;fp=kernel%2Fdrivers%2Finput%2Fmouse%2Fcyapa.c;h=eb76b61418f3fc82d7d73ca7d36cf3fd70f8ccab;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=efe148474e7f6b4dcf758ac628bf2f081a18d6c4;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git diff --git a/kernel/drivers/input/mouse/cyapa.c b/kernel/drivers/input/mouse/cyapa.c index efe148474..eb76b6141 100644 --- a/kernel/drivers/input/mouse/cyapa.c +++ b/kernel/drivers/input/mouse/cyapa.c @@ -6,7 +6,7 @@ * Daniel Kurtz * Benson Leung * - * Copyright (C) 2011-2014 Cypress Semiconductor, Inc. + * Copyright (C) 2011-2015 Cypress Semiconductor, Inc. * Copyright (C) 2011-2012 Google, Inc. * * This file is subject to the terms and conditions of the GNU General Public @@ -21,10 +21,12 @@ #include #include #include +#include #include #include #include #include +#include #include "cyapa.h" @@ -39,11 +41,33 @@ const char product_id[] = "CYTRA"; static int cyapa_reinitialize(struct cyapa *cyapa); -static inline bool cyapa_is_bootloader_mode(struct cyapa *cyapa) +bool cyapa_is_pip_bl_mode(struct cyapa *cyapa) { + if (cyapa->gen == CYAPA_GEN6 && cyapa->state == CYAPA_STATE_GEN6_BL) + return true; + if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_BL) return true; + return false; +} + +bool cyapa_is_pip_app_mode(struct cyapa *cyapa) +{ + if (cyapa->gen == CYAPA_GEN6 && cyapa->state == CYAPA_STATE_GEN6_APP) + return true; + + if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_APP) + return true; + + return false; +} + +static bool cyapa_is_bootloader_mode(struct cyapa *cyapa) +{ + if (cyapa_is_pip_bl_mode(cyapa)) + return true; + if (cyapa->gen == CYAPA_GEN3 && cyapa->state >= CYAPA_STATE_BL_BUSY && cyapa->state <= CYAPA_STATE_BL_ACTIVE) @@ -54,7 +78,7 @@ static inline bool cyapa_is_bootloader_mode(struct cyapa *cyapa) static inline bool cyapa_is_operational_mode(struct cyapa *cyapa) { - if (cyapa->gen == CYAPA_GEN5 && cyapa->state == CYAPA_STATE_GEN5_APP) + if (cyapa_is_pip_app_mode(cyapa)) return true; if (cyapa->gen == CYAPA_GEN3 && cyapa->state == CYAPA_STATE_OP) @@ -188,6 +212,15 @@ static int cyapa_get_state(struct cyapa *cyapa) if (!error) goto out_detected; } + if (cyapa->gen == CYAPA_GEN_UNKNOWN || + cyapa->gen == CYAPA_GEN6 || + cyapa->gen == CYAPA_GEN5) { + error = cyapa_pip_state_parse(cyapa, + status, BL_STATUS_SIZE); + if (!error) + goto out_detected; + } + /* For old Gen5 trackpads detecting. */ if ((cyapa->gen == CYAPA_GEN_UNKNOWN || cyapa->gen == CYAPA_GEN5) && !smbus && even_addr) { @@ -284,6 +317,9 @@ static int cyapa_check_is_operational(struct cyapa *cyapa) return error; switch (cyapa->gen) { + case CYAPA_GEN6: + cyapa->ops = &cyapa_gen6_ops; + break; case CYAPA_GEN5: cyapa->ops = &cyapa_gen5_ops; break; @@ -306,7 +342,7 @@ static int cyapa_check_is_operational(struct cyapa *cyapa) /* * Returns 0 on device detected, negative errno on no device detected. - * And when the device is detected and opertaional, it will be reset to + * And when the device is detected and operational, it will be reset to * full power active mode automatically. */ static int cyapa_detect(struct cyapa *cyapa) @@ -333,6 +369,7 @@ static int cyapa_open(struct input_dev *input) { struct cyapa *cyapa = input_get_drvdata(input); struct i2c_client *client = cyapa->client; + struct device *dev = &client->dev; int error; error = mutex_lock_interruptible(&cyapa->state_sync_lock); @@ -346,10 +383,9 @@ static int cyapa_open(struct input_dev *input) * when in operational mode. */ error = cyapa->ops->set_power_mode(cyapa, - PWR_MODE_FULL_ACTIVE, 0); + PWR_MODE_FULL_ACTIVE, 0, false); if (error) { - dev_warn(&client->dev, - "set active power failed: %d\n", error); + dev_warn(dev, "set active power failed: %d\n", error); goto out; } } else { @@ -361,10 +397,14 @@ static int cyapa_open(struct input_dev *input) } enable_irq(client->irq); - if (!pm_runtime_enabled(&client->dev)) { - pm_runtime_set_active(&client->dev); - pm_runtime_enable(&client->dev); + if (!pm_runtime_enabled(dev)) { + pm_runtime_set_active(dev); + pm_runtime_enable(dev); } + + pm_runtime_get_sync(dev); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_sync_autosuspend(dev); out: mutex_unlock(&cyapa->state_sync_lock); return error; @@ -374,16 +414,17 @@ static void cyapa_close(struct input_dev *input) { struct cyapa *cyapa = input_get_drvdata(input); struct i2c_client *client = cyapa->client; + struct device *dev = &cyapa->client->dev; mutex_lock(&cyapa->state_sync_lock); disable_irq(client->irq); - if (pm_runtime_enabled(&client->dev)) - pm_runtime_disable(&client->dev); - pm_runtime_set_suspended(&client->dev); + if (pm_runtime_enabled(dev)) + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); if (cyapa->operational) - cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0); + cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0, false); mutex_unlock(&cyapa->state_sync_lock); } @@ -443,6 +484,7 @@ static int cyapa_create_input_dev(struct cyapa *cyapa) if (cyapa->gen >= CYAPA_GEN5) { input_set_abs_params(input, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0); input_set_abs_params(input, ABS_MT_WIDTH_MINOR, 0, 255, 0, 0); + input_set_abs_params(input, ABS_DISTANCE, 0, 1, 0, 0); } input_abs_set_res(input, ABS_MT_POSITION_X, @@ -492,7 +534,7 @@ static void cyapa_enable_irq_for_cmd(struct cyapa *cyapa) */ if (!input || cyapa->operational) cyapa->ops->set_power_mode(cyapa, - PWR_MODE_FULL_ACTIVE, 0); + PWR_MODE_FULL_ACTIVE, 0, false); /* Gen3 always using polling mode for command. */ if (cyapa->gen >= CYAPA_GEN5) enable_irq(cyapa->client->irq); @@ -507,7 +549,8 @@ static void cyapa_disable_irq_for_cmd(struct cyapa *cyapa) if (cyapa->gen >= CYAPA_GEN5) disable_irq(cyapa->client->irq); if (!input || cyapa->operational) - cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0); + cyapa->ops->set_power_mode(cyapa, + PWR_MODE_OFF, 0, false); } } @@ -563,6 +606,8 @@ static int cyapa_initialize(struct cyapa *cyapa) error = cyapa_gen3_ops.initialize(cyapa); if (!error) error = cyapa_gen5_ops.initialize(cyapa); + if (!error) + error = cyapa_gen6_ops.initialize(cyapa); if (error) return error; @@ -572,7 +617,7 @@ static int cyapa_initialize(struct cyapa *cyapa) /* Power down the device until we need it. */ if (cyapa->operational) - cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0); + cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0, false); return 0; } @@ -588,7 +633,8 @@ static int cyapa_reinitialize(struct cyapa *cyapa) /* Avoid command failures when TP was in OFF state. */ if (cyapa->operational) - cyapa->ops->set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE, 0); + cyapa->ops->set_power_mode(cyapa, + PWR_MODE_FULL_ACTIVE, 0, false); error = cyapa_detect(cyapa); if (error) @@ -607,7 +653,8 @@ out: if (!input || !input->users) { /* Reset to power OFF state to save power when no user open. */ if (cyapa->operational) - cyapa->ops->set_power_mode(cyapa, PWR_MODE_OFF, 0); + cyapa->ops->set_power_mode(cyapa, + PWR_MODE_OFF, 0, false); } else if (!error && cyapa->operational) { /* * Make sure only enable runtime PM when device is @@ -615,6 +662,10 @@ out: */ pm_runtime_set_active(dev); pm_runtime_enable(dev); + + pm_runtime_get_sync(dev); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_sync_autosuspend(dev); } return error; @@ -624,27 +675,44 @@ static irqreturn_t cyapa_irq(int irq, void *dev_id) { struct cyapa *cyapa = dev_id; struct device *dev = &cyapa->client->dev; + int error; - pm_runtime_get_sync(dev); if (device_may_wakeup(dev)) pm_wakeup_event(dev, 0); - /* Interrupt event maybe cuased by host command to trackpad device. */ + /* Interrupt event can be caused by host command to trackpad device. */ if (cyapa->ops->irq_cmd_handler(cyapa)) { /* * Interrupt event maybe from trackpad device input reporting. */ if (!cyapa->input) { /* - * Still in probling or in firware image - * udpating or reading. + * Still in probing or in firmware image + * updating or reading. */ cyapa->ops->sort_empty_output_data(cyapa, NULL, NULL, NULL); goto out; } - if (!cyapa->operational || cyapa->ops->irq_handler(cyapa)) { + if (cyapa->operational) { + error = cyapa->ops->irq_handler(cyapa); + + /* + * Apply runtime power management to touch report event + * except the events caused by the command responses. + * Note: + * It will introduce about 20~40 ms additional delay + * time in receiving for first valid touch report data. + * The time is used to execute device runtime resume + * process. + */ + pm_runtime_get_sync(dev); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_sync_autosuspend(dev); + } + + if (!cyapa->operational || error) { if (!mutex_trylock(&cyapa->state_sync_lock)) { cyapa->ops->sort_empty_output_data(cyapa, NULL, NULL, NULL); @@ -656,8 +724,6 @@ static irqreturn_t cyapa_irq(int irq, void *dev_id) } out: - pm_runtime_mark_last_busy(dev); - pm_runtime_put_sync_autosuspend(dev); return IRQ_HANDLED; } @@ -1051,12 +1117,12 @@ static ssize_t cyapa_update_fw_store(struct device *dev, dev_dbg(dev, "firmware update successfully done.\n"); /* - * Redetect trackpad device states because firmware update process + * Re-detect trackpad device states because firmware update process * will reset trackpad device into bootloader mode. */ ret = cyapa_reinitialize(cyapa); if (ret) { - dev_err(dev, "failed to redetect after updated: %d\n", ret); + dev_err(dev, "failed to re-detect after updated: %d\n", ret); error = error ? error : ret; } @@ -1120,9 +1186,11 @@ static char *cyapa_state_to_string(struct cyapa *cyapa) case CYAPA_STATE_BL_ACTIVE: return "bootloader active"; case CYAPA_STATE_GEN5_BL: + case CYAPA_STATE_GEN6_BL: return "bootloader"; case CYAPA_STATE_OP: case CYAPA_STATE_GEN5_APP: + case CYAPA_STATE_GEN6_APP: return "operational"; /* Normal valid state. */ default: return "invalid mode"; @@ -1175,6 +1243,13 @@ static void cyapa_remove_sysfs_group(void *data) sysfs_remove_group(&cyapa->client->dev.kobj, &cyapa_sysfs_group); } +static void cyapa_disable_regulator(void *data) +{ + struct cyapa *cyapa = data; + + regulator_disable(cyapa->vcc); +} + static int cyapa_probe(struct i2c_client *client, const struct i2c_device_id *dev_id) { @@ -1208,6 +1283,27 @@ static int cyapa_probe(struct i2c_client *client, sprintf(cyapa->phys, "i2c-%d-%04x/input0", client->adapter->nr, client->addr); + cyapa->vcc = devm_regulator_get(dev, "vcc"); + if (IS_ERR(cyapa->vcc)) { + error = PTR_ERR(cyapa->vcc); + dev_err(dev, "failed to get vcc regulator: %d\n", error); + return error; + } + + error = regulator_enable(cyapa->vcc); + if (error) { + dev_err(dev, "failed to enable regulator: %d\n", error); + return error; + } + + error = devm_add_action(dev, cyapa_disable_regulator, cyapa); + if (error) { + cyapa_disable_regulator(cyapa); + dev_err(dev, "failed to add disable regulator action: %d\n", + error); + return error; + } + error = cyapa_initialize(cyapa); if (error) { dev_err(dev, "failed to detect and initialize tp device.\n"); @@ -1296,12 +1392,19 @@ static int __maybe_unused cyapa_suspend(struct device *dev) power_mode = device_may_wakeup(dev) ? cyapa->suspend_power_mode : PWR_MODE_OFF; error = cyapa->ops->set_power_mode(cyapa, power_mode, - cyapa->suspend_sleep_time); + cyapa->suspend_sleep_time, true); if (error) dev_err(dev, "suspend set power mode failed: %d\n", error); } + /* + * Disable proximity interrupt when system idle, want true touch to + * wake the system. + */ + if (cyapa->dev_pwr_mode != PWR_MODE_OFF) + cyapa->ops->set_proximity(cyapa, false); + if (device_may_wakeup(dev)) cyapa->irq_wake = (enable_irq_wake(client->irq) == 0); @@ -1322,7 +1425,10 @@ static int __maybe_unused cyapa_resume(struct device *dev) cyapa->irq_wake = false; } - /* Update device states and runtime PM states. */ + /* + * Update device states and runtime PM states. + * Re-Enable proximity interrupt after enter operational mode. + */ error = cyapa_reinitialize(cyapa); if (error) dev_warn(dev, "failed to reinitialize TP device: %d\n", error); @@ -1340,7 +1446,8 @@ static int __maybe_unused cyapa_runtime_suspend(struct device *dev) error = cyapa->ops->set_power_mode(cyapa, cyapa->runtime_suspend_power_mode, - cyapa->runtime_suspend_sleep_time); + cyapa->runtime_suspend_sleep_time, + false); if (error) dev_warn(dev, "runtime suspend failed: %d\n", error); @@ -1352,7 +1459,8 @@ static int __maybe_unused cyapa_runtime_resume(struct device *dev) struct cyapa *cyapa = dev_get_drvdata(dev); int error; - error = cyapa->ops->set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE, 0); + error = cyapa->ops->set_power_mode(cyapa, + PWR_MODE_FULL_ACTIVE, 0, false); if (error) dev_warn(dev, "runtime resume failed: %d\n", error); @@ -1374,17 +1482,26 @@ MODULE_DEVICE_TABLE(i2c, cyapa_id_table); static const struct acpi_device_id cyapa_acpi_id[] = { { "CYAP0000", 0 }, /* Gen3 trackpad with 0x67 I2C address. */ { "CYAP0001", 0 }, /* Gen5 trackpad with 0x24 I2C address. */ + { "CYAP0002", 0 }, /* Gen6 trackpad with 0x24 I2C address. */ { } }; MODULE_DEVICE_TABLE(acpi, cyapa_acpi_id); #endif +#ifdef CONFIG_OF +static const struct of_device_id cyapa_of_match[] = { + { .compatible = "cypress,cyapa" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, cyapa_of_match); +#endif + static struct i2c_driver cyapa_driver = { .driver = { .name = "cyapa", - .owner = THIS_MODULE, .pm = &cyapa_pm_ops, .acpi_match_table = ACPI_PTR(cyapa_acpi_id), + .of_match_table = of_match_ptr(cyapa_of_match), }, .probe = cyapa_probe,