From c28842421cb6a29fd952043381bc5391bdf6be50 Mon Sep 17 00:00:00 2001 From: Eric Piel Date: Tue, 16 Jun 2009 15:34:13 -0700 Subject: lis3: fix misc device unregistering and printk Can only unregister the misc device if it was registered before. Also remove debugging messages, which in addition were not properly formated. Signed-off-by: Eric Piel Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/hwmon/lis3lv02d.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c index 778eb779598..17f200341bc 100644 --- a/drivers/hwmon/lis3lv02d.c +++ b/drivers/hwmon/lis3lv02d.c @@ -199,7 +199,6 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file) return -EBUSY; } lis3lv02d_increase_use(&lis3_dev); - printk("lis3: registered interrupt %d\n", lis3_dev.irq); return 0; } @@ -378,7 +377,8 @@ void lis3lv02d_joystick_disable(void) if (!lis3_dev.idev) return; - misc_deregister(&lis3lv02d_misc_device); + if (lis3_dev.irq) + misc_deregister(&lis3lv02d_misc_device); input_unregister_device(lis3_dev.idev); lis3_dev.idev = NULL; } @@ -493,8 +493,6 @@ int lis3lv02d_init_device(struct lis3lv02d *dev) if (lis3lv02d_joystick_enable()) printk(KERN_ERR DRIVER_NAME ": joystick initialization failed\n"); - printk("lis3_init_device: irq %d\n", dev->irq); - /* bail if we did not get an IRQ from the bus layer */ if (!dev->irq) { printk(KERN_ERR DRIVER_NAME @@ -502,7 +500,6 @@ int lis3lv02d_init_device(struct lis3lv02d *dev) goto out; } - printk("lis3: registering device\n"); if (misc_register(&lis3lv02d_misc_device)) printk(KERN_ERR DRIVER_NAME ": misc_register failed\n"); out: -- cgit v1.2.3 From a002ee896dfd08ce9fba44e9ae513c9094699a27 Mon Sep 17 00:00:00 2001 From: Eric Piel Date: Tue, 16 Jun 2009 15:34:14 -0700 Subject: lis3: remove automatic shutdown of the device After measurement on my laptop, it seems that turning off the device does not bring any energy saving (within 0.1W precision). So let's keep the device always on. It simplifies the code, and it avoids the problem of reading a wrong value sometimes just after turning the device on. Moreover, since commit ef2cfc790bf5f0ff189b01eabc0f4feb5e8524df had been too zealous, the device was actually never turned off anyway. This patch also restores the damages done by this commit concerning the initialisation/poweroff. Also do more clean up with the usage of the lis3_dev global variable. Signed-off-by: Eric Piel Signed-off-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/hwmon/hp_accel.c | 10 ++---- drivers/hwmon/lis3lv02d.c | 88 ++++++++++++++++------------------------------- drivers/hwmon/lis3lv02d.h | 5 +-- 3 files changed, 32 insertions(+), 71 deletions(-) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c index abca7e9f953..0ebd0099e60 100644 --- a/drivers/hwmon/hp_accel.c +++ b/drivers/hwmon/hp_accel.c @@ -324,7 +324,7 @@ static int lis3lv02d_remove(struct acpi_device *device, int type) flush_work(&hpled_led.work); led_classdev_unregister(&hpled_led.led_classdev); - return lis3lv02d_remove_fs(); + return lis3lv02d_remove_fs(&lis3_dev); } @@ -338,13 +338,7 @@ static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state) static int lis3lv02d_resume(struct acpi_device *device) { - /* put back the device in the right state (ACPI might turn it on) */ - mutex_lock(&lis3_dev.lock); - if (lis3_dev.usage > 0) - lis3lv02d_poweron(&lis3_dev); - else - lis3lv02d_poweroff(&lis3_dev); - mutex_unlock(&lis3_dev.lock); + lis3lv02d_poweron(&lis3_dev); return 0; } #else diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c index 17f200341bc..df3f58613f7 100644 --- a/drivers/hwmon/lis3lv02d.c +++ b/drivers/hwmon/lis3lv02d.c @@ -105,56 +105,39 @@ static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z) { int position[3]; - position[0] = lis3_dev.read_data(lis3, OUTX); - position[1] = lis3_dev.read_data(lis3, OUTY); - position[2] = lis3_dev.read_data(lis3, OUTZ); + position[0] = lis3->read_data(lis3, OUTX); + position[1] = lis3->read_data(lis3, OUTY); + position[2] = lis3->read_data(lis3, OUTZ); - *x = lis3lv02d_get_axis(lis3_dev.ac.x, position); - *y = lis3lv02d_get_axis(lis3_dev.ac.y, position); - *z = lis3lv02d_get_axis(lis3_dev.ac.z, position); + *x = lis3lv02d_get_axis(lis3->ac.x, position); + *y = lis3lv02d_get_axis(lis3->ac.y, position); + *z = lis3lv02d_get_axis(lis3->ac.z, position); } void lis3lv02d_poweroff(struct lis3lv02d *lis3) { - lis3_dev.is_on = 0; + /* disable X,Y,Z axis and power down */ + lis3->write(lis3, CTRL_REG1, 0x00); } EXPORT_SYMBOL_GPL(lis3lv02d_poweroff); void lis3lv02d_poweron(struct lis3lv02d *lis3) { - lis3_dev.is_on = 1; - lis3_dev.init(lis3); -} -EXPORT_SYMBOL_GPL(lis3lv02d_poweron); + u8 reg; -/* - * To be called before starting to use the device. It makes sure that the - * device will always be on until a call to lis3lv02d_decrease_use(). Not to be - * used from interrupt context. - */ -static void lis3lv02d_increase_use(struct lis3lv02d *dev) -{ - mutex_lock(&dev->lock); - dev->usage++; - if (dev->usage == 1) { - if (!dev->is_on) - lis3lv02d_poweron(dev); - } - mutex_unlock(&dev->lock); -} + lis3->init(lis3); -/* - * To be called whenever a usage of the device is stopped. - * It will make sure to turn off the device when there is not usage. - */ -static void lis3lv02d_decrease_use(struct lis3lv02d *dev) -{ - mutex_lock(&dev->lock); - dev->usage--; - if (dev->usage == 0) - lis3lv02d_poweroff(dev); - mutex_unlock(&dev->lock); + /* + * Common configuration + * BDU: LSB and MSB values are not updated until both have been read. + * So the value read will always be correct. + */ + lis3->read(lis3, CTRL_REG2, ®); + reg |= CTRL2_BDU; + lis3->write(lis3, CTRL_REG2, reg); } +EXPORT_SYMBOL_GPL(lis3lv02d_poweron); + static irqreturn_t lis302dl_interrupt(int irq, void *dummy) { @@ -198,14 +181,12 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file) printk(KERN_ERR DRIVER_NAME ": IRQ%d allocation failed\n", lis3_dev.irq); return -EBUSY; } - lis3lv02d_increase_use(&lis3_dev); return 0; } static int lis3lv02d_misc_release(struct inode *inode, struct file *file) { fasync_helper(-1, file, 0, &lis3_dev.async_queue); - lis3lv02d_decrease_use(&lis3_dev); free_irq(lis3_dev.irq, &lis3_dev); clear_bit(0, &lis3_dev.misc_opened); /* release the device */ return 0; @@ -314,10 +295,8 @@ static int lis3lv02d_joystick_kthread(void *data) static int lis3lv02d_joystick_open(struct input_dev *input) { - lis3lv02d_increase_use(&lis3_dev); lis3_dev.kthread = kthread_run(lis3lv02d_joystick_kthread, NULL, "klis3lv02d"); if (IS_ERR(lis3_dev.kthread)) { - lis3lv02d_decrease_use(&lis3_dev); return PTR_ERR(lis3_dev.kthread); } @@ -327,7 +306,6 @@ static int lis3lv02d_joystick_open(struct input_dev *input) static void lis3lv02d_joystick_close(struct input_dev *input) { kthread_stop(lis3_dev.kthread); - lis3lv02d_decrease_use(&lis3_dev); } static inline void lis3lv02d_calibrate_joystick(void) @@ -390,9 +368,7 @@ static ssize_t lis3lv02d_position_show(struct device *dev, { int x, y, z; - lis3lv02d_increase_use(&lis3_dev); lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z); - lis3lv02d_decrease_use(&lis3_dev); return sprintf(buf, "(%d,%d,%d)\n", x, y, z); } @@ -406,9 +382,7 @@ static ssize_t lis3lv02d_calibrate_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - lis3lv02d_increase_use(&lis3_dev); lis3lv02d_calibrate_joystick(); - lis3lv02d_decrease_use(&lis3_dev); return count; } @@ -420,9 +394,7 @@ static ssize_t lis3lv02d_rate_show(struct device *dev, u8 ctrl; int val; - lis3lv02d_increase_use(&lis3_dev); lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl); - lis3lv02d_decrease_use(&lis3_dev); val = (ctrl & (CTRL1_DF0 | CTRL1_DF1)) >> 4; return sprintf(buf, "%d\n", lis3lv02dl_df_val[val]); } @@ -446,17 +418,17 @@ static struct attribute_group lis3lv02d_attribute_group = { static int lis3lv02d_add_fs(struct lis3lv02d *lis3) { - lis3_dev.pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); - if (IS_ERR(lis3_dev.pdev)) - return PTR_ERR(lis3_dev.pdev); + lis3->pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); + if (IS_ERR(lis3->pdev)) + return PTR_ERR(lis3->pdev); - return sysfs_create_group(&lis3_dev.pdev->dev.kobj, &lis3lv02d_attribute_group); + return sysfs_create_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group); } -int lis3lv02d_remove_fs(void) +int lis3lv02d_remove_fs(struct lis3lv02d *lis3) { - sysfs_remove_group(&lis3_dev.pdev->dev.kobj, &lis3lv02d_attribute_group); - platform_device_unregister(lis3_dev.pdev); + sysfs_remove_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group); + platform_device_unregister(lis3->pdev); return 0; } EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs); @@ -482,13 +454,12 @@ int lis3lv02d_init_device(struct lis3lv02d *dev) break; default: printk(KERN_ERR DRIVER_NAME - ": unknown sensor type 0x%X\n", lis3_dev.whoami); + ": unknown sensor type 0x%X\n", dev->whoami); return -EINVAL; } - mutex_init(&dev->lock); lis3lv02d_add_fs(dev); - lis3lv02d_increase_use(dev); + lis3lv02d_poweron(dev); if (lis3lv02d_joystick_enable()) printk(KERN_ERR DRIVER_NAME ": joystick initialization failed\n"); @@ -503,7 +474,6 @@ int lis3lv02d_init_device(struct lis3lv02d *dev) if (misc_register(&lis3lv02d_misc_device)) printk(KERN_ERR DRIVER_NAME ": misc_register failed\n"); out: - lis3lv02d_decrease_use(dev); return 0; } EXPORT_SYMBOL_GPL(lis3lv02d_init_device); diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h index 745ec96806d..b007d818421 100644 --- a/drivers/hwmon/lis3lv02d.h +++ b/drivers/hwmon/lis3lv02d.h @@ -171,14 +171,11 @@ struct lis3lv02d { struct input_dev *idev; /* input device */ struct task_struct *kthread; /* kthread for input */ - struct mutex lock; struct platform_device *pdev; /* platform device */ atomic_t count; /* interrupt count after last read */ int xcalib; /* calibrated null value for x */ int ycalib; /* calibrated null value for y */ int zcalib; /* calibrated null value for z */ - unsigned char is_on; /* whether the device is on or off */ - unsigned char usage; /* usage counter */ struct axis_conversion ac; /* hw -> logical axis */ u32 irq; /* IRQ number */ @@ -192,6 +189,6 @@ int lis3lv02d_joystick_enable(void); void lis3lv02d_joystick_disable(void); void lis3lv02d_poweroff(struct lis3lv02d *lis3); void lis3lv02d_poweron(struct lis3lv02d *lis3); -int lis3lv02d_remove_fs(void); +int lis3lv02d_remove_fs(struct lis3lv02d *lis3); extern struct lis3lv02d lis3_dev; -- cgit v1.2.3 From dc6ea97bac6b8228c7a69740df35eed2be3407be Mon Sep 17 00:00:00 2001 From: Eric Piel Date: Tue, 16 Jun 2009 15:34:15 -0700 Subject: lis3: use input_polled_device Now that there is no need to hookup on the open/close of the joystick, it's possible to use the simplified interface input_polled_device, instead of creating our own kthread. [randy.dunlap@oracle.com: fix Kconfig] [randy.dunlap@oracle.com: fix Kconfig some more] Signed-off-by: Eric Piel Signed-off-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/hwmon/Kconfig | 2 ++ drivers/hwmon/hp_accel.c | 3 -- drivers/hwmon/lis3lv02d.c | 74 +++++++++++++++-------------------------------- drivers/hwmon/lis3lv02d.h | 5 ++-- 4 files changed, 29 insertions(+), 55 deletions(-) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index d73f5f473e3..eec7dca6b2f 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -940,6 +940,7 @@ config SENSORS_HDAPS config SENSORS_LIS3LV02D tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer" depends on ACPI && INPUT + select INPUT_POLLDEV select NEW_LEDS select LEDS_CLASS default n @@ -967,6 +968,7 @@ config SENSORS_LIS3LV02D config SENSORS_LIS3_SPI tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (SPI)" depends on !ACPI && SPI_MASTER && INPUT + select INPUT_POLLDEV default n help This driver provides support for the LIS3LV02Dx accelerometer connected diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c index 0ebd0099e60..92db68ea948 100644 --- a/drivers/hwmon/hp_accel.c +++ b/drivers/hwmon/hp_accel.c @@ -27,9 +27,6 @@ #include #include #include -#include -#include -#include #include #include #include diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c index df3f58613f7..366190609c7 100644 --- a/drivers/hwmon/lis3lv02d.c +++ b/drivers/hwmon/lis3lv02d.c @@ -27,9 +27,7 @@ #include #include #include -#include -#include -#include +#include #include #include #include @@ -270,43 +268,16 @@ static struct miscdevice lis3lv02d_misc_device = { .fops = &lis3lv02d_misc_fops, }; -/** - * lis3lv02d_joystick_kthread - Kthread polling function - * @data: unused - here to conform to threadfn prototype - */ -static int lis3lv02d_joystick_kthread(void *data) +static void lis3lv02d_joystick_poll(struct input_polled_dev *pidev) { int x, y, z; - while (!kthread_should_stop()) { - lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z); - input_report_abs(lis3_dev.idev, ABS_X, x - lis3_dev.xcalib); - input_report_abs(lis3_dev.idev, ABS_Y, y - lis3_dev.ycalib); - input_report_abs(lis3_dev.idev, ABS_Z, z - lis3_dev.zcalib); - - input_sync(lis3_dev.idev); - - try_to_freeze(); - msleep_interruptible(MDPS_POLL_INTERVAL); - } - - return 0; -} - -static int lis3lv02d_joystick_open(struct input_dev *input) -{ - lis3_dev.kthread = kthread_run(lis3lv02d_joystick_kthread, NULL, "klis3lv02d"); - if (IS_ERR(lis3_dev.kthread)) { - return PTR_ERR(lis3_dev.kthread); - } - - return 0; + lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z); + input_report_abs(pidev->input, ABS_X, x - lis3_dev.xcalib); + input_report_abs(pidev->input, ABS_Y, y - lis3_dev.ycalib); + input_report_abs(pidev->input, ABS_Z, z - lis3_dev.zcalib); } -static void lis3lv02d_joystick_close(struct input_dev *input) -{ - kthread_stop(lis3_dev.kthread); -} static inline void lis3lv02d_calibrate_joystick(void) { @@ -316,33 +287,36 @@ static inline void lis3lv02d_calibrate_joystick(void) int lis3lv02d_joystick_enable(void) { + struct input_dev *input_dev; int err; if (lis3_dev.idev) return -EINVAL; - lis3_dev.idev = input_allocate_device(); + lis3_dev.idev = input_allocate_polled_device(); if (!lis3_dev.idev) return -ENOMEM; + lis3_dev.idev->poll = lis3lv02d_joystick_poll; + lis3_dev.idev->poll_interval = MDPS_POLL_INTERVAL; + input_dev = lis3_dev.idev->input; + lis3lv02d_calibrate_joystick(); - lis3_dev.idev->name = "ST LIS3LV02DL Accelerometer"; - lis3_dev.idev->phys = DRIVER_NAME "/input0"; - lis3_dev.idev->id.bustype = BUS_HOST; - lis3_dev.idev->id.vendor = 0; - lis3_dev.idev->dev.parent = &lis3_dev.pdev->dev; - lis3_dev.idev->open = lis3lv02d_joystick_open; - lis3_dev.idev->close = lis3lv02d_joystick_close; + input_dev->name = "ST LIS3LV02DL Accelerometer"; + input_dev->phys = DRIVER_NAME "/input0"; + input_dev->id.bustype = BUS_HOST; + input_dev->id.vendor = 0; + input_dev->dev.parent = &lis3_dev.pdev->dev; - set_bit(EV_ABS, lis3_dev.idev->evbit); - input_set_abs_params(lis3_dev.idev, ABS_X, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3); - input_set_abs_params(lis3_dev.idev, ABS_Y, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3); - input_set_abs_params(lis3_dev.idev, ABS_Z, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3); + set_bit(EV_ABS, input_dev->evbit); + input_set_abs_params(input_dev, ABS_X, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3); + input_set_abs_params(input_dev, ABS_Y, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3); + input_set_abs_params(input_dev, ABS_Z, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3); - err = input_register_device(lis3_dev.idev); + err = input_register_polled_device(lis3_dev.idev); if (err) { - input_free_device(lis3_dev.idev); + input_free_polled_device(lis3_dev.idev); lis3_dev.idev = NULL; } @@ -357,7 +331,7 @@ void lis3lv02d_joystick_disable(void) if (lis3_dev.irq) misc_deregister(&lis3lv02d_misc_device); - input_unregister_device(lis3_dev.idev); + input_unregister_polled_device(lis3_dev.idev); lis3_dev.idev = NULL; } EXPORT_SYMBOL_GPL(lis3lv02d_joystick_disable); diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h index b007d818421..5a5a196e6a6 100644 --- a/drivers/hwmon/lis3lv02d.h +++ b/drivers/hwmon/lis3lv02d.h @@ -18,6 +18,8 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include +#include /* * The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to @@ -169,8 +171,7 @@ struct lis3lv02d { s16 (*read_data) (struct lis3lv02d *lis3, int reg); int mdps_max_val; - struct input_dev *idev; /* input device */ - struct task_struct *kthread; /* kthread for input */ + struct input_polled_dev *idev; /* input device */ struct platform_device *pdev; /* platform device */ atomic_t count; /* interrupt count after last read */ int xcalib; /* calibrated null value for x */ -- cgit v1.2.3 From 0093716e6dd18dad554bef81cc788a4c50d32a09 Mon Sep 17 00:00:00 2001 From: Eric Piel Date: Tue, 16 Jun 2009 15:34:16 -0700 Subject: lis3: add three new laptop models Separate the 6710 and 6715, and set the right axis information for the 6715. Reported-by: Isaac702 Add the 6930. Reported-by: Christian Weidle Add the 2710. Reported-by: Pavel Herrmann Signed-off-by: Eric Piel Signed-off-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/hwmon/hp_accel.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c index 92db68ea948..6679854c85b 100644 --- a/drivers/hwmon/hp_accel.c +++ b/drivers/hwmon/hp_accel.c @@ -158,6 +158,7 @@ static struct axis_conversion lis3lv02d_axis_normal = {1, 2, 3}; static struct axis_conversion lis3lv02d_axis_y_inverted = {1, -2, 3}; static struct axis_conversion lis3lv02d_axis_x_inverted = {-1, 2, 3}; static struct axis_conversion lis3lv02d_axis_z_inverted = {1, 2, -3}; +static struct axis_conversion lis3lv02d_axis_xy_swap = {2, 1, 3}; static struct axis_conversion lis3lv02d_axis_xy_rotated_left = {-2, 1, 3}; static struct axis_conversion lis3lv02d_axis_xy_rotated_left_usd = {-2, 1, -3}; static struct axis_conversion lis3lv02d_axis_xy_swap_inverted = {-2, -1, 3}; @@ -191,13 +192,16 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = { AXIS_DMI_MATCH("NX9420", "HP Compaq nx9420", x_inverted), AXIS_DMI_MATCH("NW9440", "HP Compaq nw9440", x_inverted), AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted), + AXIS_DMI_MATCH("NC2710", "HP Compaq 2710", xy_swap), AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted), AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left), AXIS_DMI_MATCH("HP2140", "HP 2140", xy_swap_inverted), AXIS_DMI_MATCH("NC653x", "HP Compaq 653", xy_rotated_left_usd), AXIS_DMI_MATCH("NC673x", "HP Compaq 673", xy_rotated_left_usd), AXIS_DMI_MATCH("NC651xx", "HP Compaq 651", xy_rotated_right), - AXIS_DMI_MATCH("NC671xx", "HP Compaq 671", xy_swap_yz_inverted), + AXIS_DMI_MATCH("NC6710x", "HP Compaq 6710", xy_swap_yz_inverted), + AXIS_DMI_MATCH("NC6715x", "HP Compaq 6715", y_inverted), + AXIS_DMI_MATCH("NC693xx", "HP EliteBook 693", xy_rotated_right), /* Intel-based HP Pavilion dv5 */ AXIS_DMI_MATCH2("HPDV5_I", PRODUCT_NAME, "HP Pavilion dv5", @@ -213,7 +217,6 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = { { NULL, } /* Laptop models without axis info (yet): * "NC6910" "HP Compaq 6910" - * HP Compaq 8710x Notebook PC / Mobile Workstation * "NC2400" "HP Compaq nc2400" * "NX74x0" "HP Compaq nx74" * "NX6325" "HP Compaq nx6325" -- cgit v1.2.3 From 8f3128e714ded7cf1e8c786c204a4f253b5d8ff4 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Tue, 16 Jun 2009 15:34:17 -0700 Subject: lis3: add click function The LIS302DL accelerometer chip has a 'click' feature which can be used to detect sudden motion on any of the three axis. Configuration data is passed via spi platform_data and no action is taken if that's not specified, so it won't harm any existing platform. To make the configuration effective, the IRQ lines need to be set up appropriately. This patch also adds a way to do that from board support code. The DD_* definitions were factored out to an own enum because they are specific to LIS3LV02D devices. Signed-off-by: Daniel Mack Acked-by: Pavel Machek Acked-by: Eric Piel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/hwmon/lis3lv02d.c | 20 ++++++++++++++++++++ drivers/hwmon/lis3lv02d.h | 19 ++++++++++++++++++- drivers/hwmon/lis3lv02d_spi.c | 1 + 3 files changed, 39 insertions(+), 1 deletion(-) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c index 366190609c7..271338bdb6b 100644 --- a/drivers/hwmon/lis3lv02d.c +++ b/drivers/hwmon/lis3lv02d.c @@ -438,6 +438,26 @@ int lis3lv02d_init_device(struct lis3lv02d *dev) if (lis3lv02d_joystick_enable()) printk(KERN_ERR DRIVER_NAME ": joystick initialization failed\n"); + /* passing in platform specific data is purely optional and only + * used by the SPI transport layer at the moment */ + if (dev->pdata) { + struct lis3lv02d_platform_data *p = dev->pdata; + + if (p->click_flags && (dev->whoami == LIS_SINGLE_ID)) { + dev->write(dev, CLICK_CFG, p->click_flags); + dev->write(dev, CLICK_TIMELIMIT, p->click_time_limit); + dev->write(dev, CLICK_LATENCY, p->click_latency); + dev->write(dev, CLICK_WINDOW, p->click_window); + dev->write(dev, CLICK_THSZ, p->click_thresh_z & 0xf); + dev->write(dev, CLICK_THSY_X, + (p->click_thresh_x & 0xf) | + (p->click_thresh_y << 4)); + } + + if (p->irq_cfg) + dev->write(dev, CTRL_REG3, p->irq_cfg); + } + /* bail if we did not get an IRQ from the bus layer */ if (!dev->irq) { printk(KERN_ERR DRIVER_NAME diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h index 5a5a196e6a6..e320e2f511f 100644 --- a/drivers/hwmon/lis3lv02d.h +++ b/drivers/hwmon/lis3lv02d.h @@ -29,12 +29,14 @@ * They can also be connected via I²C. */ +#include + /* 2-byte registers */ #define LIS_DOUBLE_ID 0x3A /* LIS3LV02D[LQ] */ /* 1-byte registers */ #define LIS_SINGLE_ID 0x3B /* LIS[32]02DL and others */ -enum lis3lv02d_reg { +enum lis3_reg { WHO_AM_I = 0x0F, OFFSET_X = 0x16, OFFSET_Y = 0x17, @@ -62,6 +64,19 @@ enum lis3lv02d_reg { FF_WU_THS_L = 0x34, FF_WU_THS_H = 0x35, FF_WU_DURATION = 0x36, +}; + +enum lis302d_reg { + CLICK_CFG = 0x38, + CLICK_SRC = 0x39, + CLICK_THSY_X = 0x3B, + CLICK_THSZ = 0x3C, + CLICK_TIMELIMIT = 0x3D, + CLICK_LATENCY = 0x3E, + CLICK_WINDOW = 0x3F, +}; + +enum lis3lv02d_reg { DD_CFG = 0x38, DD_SRC = 0x39, DD_ACK = 0x3A, @@ -183,6 +198,8 @@ struct lis3lv02d { struct fasync_struct *async_queue; /* queue for the misc device */ wait_queue_head_t misc_wait; /* Wait queue for the misc device */ unsigned long misc_opened; /* bit0: whether the device is open */ + + struct lis3lv02d_platform_data *pdata; /* for passing board config */ }; int lis3lv02d_init_device(struct lis3lv02d *lis3); diff --git a/drivers/hwmon/lis3lv02d_spi.c b/drivers/hwmon/lis3lv02d_spi.c index 07ae74b0e19..3827ff04485 100644 --- a/drivers/hwmon/lis3lv02d_spi.c +++ b/drivers/hwmon/lis3lv02d_spi.c @@ -72,6 +72,7 @@ static int __devinit lis302dl_spi_probe(struct spi_device *spi) lis3_dev.write = lis3_spi_write; lis3_dev.irq = spi->irq; lis3_dev.ac = lis3lv02d_axis_normal; + lis3_dev.pdata = spi->dev.platform_data; spi_set_drvdata(spi, &lis3_dev); ret = lis3lv02d_init_device(&lis3_dev); -- cgit v1.2.3