diff options
Diffstat (limited to 'drivers/mfd/ucb1x00-ts.c')
| -rw-r--r-- | drivers/mfd/ucb1x00-ts.c | 117 |
1 files changed, 77 insertions, 40 deletions
diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c index a260f83bcb02..a984c0efabf0 100644 --- a/drivers/mfd/ucb1x00-ts.c +++ b/drivers/mfd/ucb1x00-ts.c @@ -32,15 +32,18 @@ #include <linux/suspend.h> #include <linux/slab.h> #include <linux/kthread.h> +#include <linux/delay.h> #include <asm/dma.h> #include <asm/semaphore.h> +#include <asm/arch/collie.h> +#include <asm/mach-types.h> #include "ucb1x00.h" struct ucb1x00_ts { - struct input_dev idev; + struct input_dev *idev; struct ucb1x00 *ucb; wait_queue_head_t irq_wait; @@ -56,16 +59,16 @@ static int adcsync; static inline void ucb1x00_ts_evt_add(struct ucb1x00_ts *ts, u16 pressure, u16 x, u16 y) { - input_report_abs(&ts->idev, ABS_X, x); - input_report_abs(&ts->idev, ABS_Y, y); - input_report_abs(&ts->idev, ABS_PRESSURE, pressure); - input_sync(&ts->idev); + input_report_abs(ts->idev, ABS_X, x); + input_report_abs(ts->idev, ABS_Y, y); + input_report_abs(ts->idev, ABS_PRESSURE, pressure); + input_sync(ts->idev); } static inline void ucb1x00_ts_event_release(struct ucb1x00_ts *ts) { - input_report_abs(&ts->idev, ABS_PRESSURE, 0); - input_sync(&ts->idev); + input_report_abs(ts->idev, ABS_PRESSURE, 0); + input_sync(ts->idev); } /* @@ -85,12 +88,23 @@ static inline void ucb1x00_ts_mode_int(struct ucb1x00_ts *ts) */ static inline unsigned int ucb1x00_ts_read_pressure(struct ucb1x00_ts *ts) { - ucb1x00_reg_write(ts->ucb, UCB_TS_CR, - UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + if (machine_is_collie()) { + ucb1x00_io_write(ts->ucb, COLLIE_TC35143_GPIO_TBL_CHK, 0); + ucb1x00_reg_write(ts->ucb, UCB_TS_CR, + UCB_TS_CR_TSPX_POW | UCB_TS_CR_TSMX_POW | + UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA); - return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync); + udelay(55); + + return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_AD2, ts->adcsync); + } else { + ucb1x00_reg_write(ts->ucb, UCB_TS_CR, + UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW | + UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND | + UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + + return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync); + } } /* @@ -101,12 +115,16 @@ static inline unsigned int ucb1x00_ts_read_pressure(struct ucb1x00_ts *ts) */ static inline unsigned int ucb1x00_ts_read_xpos(struct ucb1x00_ts *ts) { - ucb1x00_reg_write(ts->ucb, UCB_TS_CR, - UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - ucb1x00_reg_write(ts->ucb, UCB_TS_CR, - UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + if (machine_is_collie()) + ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK); + else { + ucb1x00_reg_write(ts->ucb, UCB_TS_CR, + UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | + UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + ucb1x00_reg_write(ts->ucb, UCB_TS_CR, + UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | + UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + } ucb1x00_reg_write(ts->ucb, UCB_TS_CR, UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW | UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA); @@ -124,12 +142,17 @@ static inline unsigned int ucb1x00_ts_read_xpos(struct ucb1x00_ts *ts) */ static inline unsigned int ucb1x00_ts_read_ypos(struct ucb1x00_ts *ts) { - ucb1x00_reg_write(ts->ucb, UCB_TS_CR, - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); - ucb1x00_reg_write(ts->ucb, UCB_TS_CR, - UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | - UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + if (machine_is_collie()) + ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK); + else { + ucb1x00_reg_write(ts->ucb, UCB_TS_CR, + UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | + UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + ucb1x00_reg_write(ts->ucb, UCB_TS_CR, + UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | + UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA); + } + ucb1x00_reg_write(ts->ucb, UCB_TS_CR, UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW | UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA); @@ -163,6 +186,15 @@ static inline unsigned int ucb1x00_ts_read_yres(struct ucb1x00_ts *ts) return ucb1x00_adc_read(ts->ucb, 0, ts->adcsync); } +static inline int ucb1x00_ts_pen_down(struct ucb1x00_ts *ts) +{ + unsigned int val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR); + if (machine_is_collie()) + return (!(val & (UCB_TS_CR_TSPX_LOW))); + else + return (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW)); +} + /* * This is a RT kernel thread that handles the ADC accesses * (mainly so we can use semaphores in the UCB1200 core code @@ -186,7 +218,7 @@ static int ucb1x00_thread(void *_ts) add_wait_queue(&ts->irq_wait, &wait); while (!kthread_should_stop()) { - unsigned int x, y, p, val; + unsigned int x, y, p; signed long timeout; ts->restart = 0; @@ -206,12 +238,12 @@ static int ucb1x00_thread(void *_ts) msleep(10); ucb1x00_enable(ts->ucb); - val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR); - if (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW)) { + + if (ucb1x00_ts_pen_down(ts)) { set_task_state(tsk, TASK_INTERRUPTIBLE); - ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, UCB_FALLING); + ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, machine_is_collie() ? UCB_RISING : UCB_FALLING); ucb1x00_disable(ts->ucb); /* @@ -341,26 +373,30 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev) { struct ucb1x00_ts *ts; - ts = kmalloc(sizeof(struct ucb1x00_ts), GFP_KERNEL); + ts = kzalloc(sizeof(struct ucb1x00_ts), GFP_KERNEL); if (!ts) return -ENOMEM; - memset(ts, 0, sizeof(struct ucb1x00_ts)); + ts->idev = input_allocate_device(); + if (!ts->idev) { + kfree(ts); + return -ENOMEM; + } ts->ucb = dev->ucb; ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC; - ts->idev.name = "Touchscreen panel"; - ts->idev.id.product = ts->ucb->id; - ts->idev.open = ucb1x00_ts_open; - ts->idev.close = ucb1x00_ts_close; + ts->idev->name = "Touchscreen panel"; + ts->idev->id.product = ts->ucb->id; + ts->idev->open = ucb1x00_ts_open; + ts->idev->close = ucb1x00_ts_close; - __set_bit(EV_ABS, ts->idev.evbit); - __set_bit(ABS_X, ts->idev.absbit); - __set_bit(ABS_Y, ts->idev.absbit); - __set_bit(ABS_PRESSURE, ts->idev.absbit); + __set_bit(EV_ABS, ts->idev->evbit); + __set_bit(ABS_X, ts->idev->absbit); + __set_bit(ABS_Y, ts->idev->absbit); + __set_bit(ABS_PRESSURE, ts->idev->absbit); - input_register_device(&ts->idev); + input_register_device(ts->idev); dev->priv = ts; @@ -370,7 +406,8 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev) static void ucb1x00_ts_remove(struct ucb1x00_dev *dev) { struct ucb1x00_ts *ts = dev->priv; - input_unregister_device(&ts->idev); + + input_unregister_device(ts->idev); kfree(ts); } |
