diff options
Diffstat (limited to 'boards/base/Olimex-STM32-LCD/ginput_lld_mouse_board.h')
-rw-r--r-- | boards/base/Olimex-STM32-LCD/ginput_lld_mouse_board.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/boards/base/Olimex-STM32-LCD/ginput_lld_mouse_board.h b/boards/base/Olimex-STM32-LCD/ginput_lld_mouse_board.h new file mode 100644 index 00000000..7a383c60 --- /dev/null +++ b/boards/base/Olimex-STM32-LCD/ginput_lld_mouse_board.h @@ -0,0 +1,109 @@ +/* + * This file is subject to the terms of the GFX License. If a copy of + * the license was not distributed with this file, you can obtain one at: + * + * http://ugfx.org/license.html + */ + +#ifndef _GINPUT_LLD_MOUSE_BOARD_H +#define _GINPUT_LLD_MOUSE_BOARD_H + +#define ADC_NUM_CHANNELS 2 +#define ADC_BUF_DEPTH 1 + +static const ADCConversionGroup adc_y_config = { + FALSE, + ADC_NUM_CHANNELS, + NULL, + NULL, + 0, 0, + 0, 0, + ADC_SQR1_NUM_CH(ADC_NUM_CHANNELS), + 0, + ADC_SQR3_SQ2_N(ADC_CHANNEL_IN12) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN13) +}; + +static const ADCConversionGroup adc_x_config = { + FALSE, + ADC_NUM_CHANNELS, + NULL, + NULL, + 0, 0, + 0, 0, + ADC_SQR1_NUM_CH(ADC_NUM_CHANNELS), + 0, + ADC_SQR3_SQ2_N(ADC_CHANNEL_IN10) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN11) +}; + +static inline void init_board(void) { + adcStart(&ADCD1, NULL); +} + +static inline bool_t getpin_pressed(void) { + palSetPadMode(GPIOC, 0, PAL_MODE_INPUT_PULLDOWN); + palSetPadMode(GPIOC, 1, PAL_MODE_INPUT); + palSetPadMode(GPIOC, 2, PAL_MODE_INPUT); + palSetPadMode(GPIOC, 3, PAL_MODE_OUTPUT_PUSHPULL); + palSetPad(GPIOC, 3); + + return palReadPad(GPIOC, 0); +} + +static inline void aquire_bus(void) { + +} + +static inline void release_bus(void) { + +} + +static inline uint16_t read_x_value(void) { + uint16_t val1, val2; + adcsample_t samples[ADC_NUM_CHANNELS * ADC_BUF_DEPTH]; + + palSetPadMode(GPIOC, 0, PAL_MODE_INPUT_ANALOG); + palSetPadMode(GPIOC, 1, PAL_MODE_INPUT_ANALOG); + palSetPadMode(GPIOC, 2, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOC, 3, PAL_MODE_OUTPUT_PUSHPULL); + + palSetPad(GPIOC, 2); + palClearPad(GPIOC, 3); + gfxSleepMilliseconds(1); + adcConvert(&ADCD1, &adc_x_config, samples, ADC_BUF_DEPTH); + val1 = ((samples[0] + samples[1])/2); + + palClearPad(GPIOC, 2); + palSetPad(GPIOC, 3); + gfxSleepMilliseconds(1); + adcConvert(&ADCD1, &adc_x_config, samples, ADC_BUF_DEPTH); + val2 = ((samples[0] + samples[1])/2); + + return ((val1+((1<<12)-val2))/4); +} + +static inline uint16_t read_y_value(void) { + uint16_t val1, val2; + adcsample_t samples[ADC_NUM_CHANNELS * ADC_BUF_DEPTH]; + + palSetPadMode(GPIOC, 2, PAL_MODE_INPUT_ANALOG); + palSetPadMode(GPIOC, 3, PAL_MODE_INPUT_ANALOG); + palSetPadMode(GPIOC, 0, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOC, 1, PAL_MODE_OUTPUT_PUSHPULL); + + palSetPad(GPIOC, 1); + palClearPad(GPIOC, 0); + gfxSleepMilliseconds(1); + adcConvert(&ADCD1, &adc_y_config, samples, ADC_BUF_DEPTH); + val1 = ((samples[0] + samples[1])/2); + + palClearPad(GPIOC, 1); + palSetPad(GPIOC, 0); + gfxSleepMilliseconds(1); + adcConvert(&ADCD1, &adc_y_config, samples, ADC_BUF_DEPTH); + val2 = ((samples[0] + samples[1])/2); + + return ((val1+((1<<12)-val2))/4); +} + +#endif /* _GINPUT_LLD_MOUSE_BOARD_H */ + |