diff options
Diffstat (limited to 'tinyusb/hw/bsp/ea4357/pca9532.c')
-rwxr-xr-x | tinyusb/hw/bsp/ea4357/pca9532.c | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/tinyusb/hw/bsp/ea4357/pca9532.c b/tinyusb/hw/bsp/ea4357/pca9532.c deleted file mode 100755 index eae3805c..00000000 --- a/tinyusb/hw/bsp/ea4357/pca9532.c +++ /dev/null @@ -1,352 +0,0 @@ -/***************************************************************************** - * - * Copyright(C) 2011, Embedded Artists AB - * All rights reserved. - * - ****************************************************************************** - * Software that is described herein is for illustrative purposes only - * which provides customers with programming information regarding the - * products. This software is supplied "AS IS" without any warranties. - * Embedded Artists AB assumes no responsibility or liability for the - * use of the software, conveys no license or title under any patent, - * copyright, or mask work right to the product. Embedded Artists AB - * reserves the right to make changes in the software without - * notification. Embedded Artists AB also make no representation or - * warranty that such application will be suitable for the specified - * use without further testing or modification. - *****************************************************************************/ - -/* - * NOTE: I2C must have been initialized before calling any functions in this - * file. - */ - -/****************************************************************************** - * Includes - *****************************************************************************/ - -//#include "board.h" -#include "chip.h" - -#include "pca9532.h" - -/****************************************************************************** - * Defines and typedefs - *****************************************************************************/ - -#define I2C_PORT (LPC_I2C0) - -#define LS_MODE_ON 0x01 -#define LS_MODE_BLINK0 0x02 -#define LS_MODE_BLINK1 0x03 - -/****************************************************************************** - * External global variables - *****************************************************************************/ - - -/****************************************************************************** - * Local variables - *****************************************************************************/ - -static uint16_t blink0Shadow = 0; -static uint16_t blink1Shadow = 0; -static uint16_t ledStateShadow = 0; - -/****************************************************************************** - * Local Functions - *****************************************************************************/ - -static Status I2CWrite(uint32_t addr, uint8_t* buf, uint32_t len) -{ - I2CM_XFER_T i2cData; - - i2cData.slaveAddr = addr; - i2cData.options = 0; - i2cData.status = 0; - i2cData.txBuff = buf; - i2cData.txSz = len; - i2cData.rxBuff = NULL; - i2cData.rxSz = 0; - - if (Chip_I2CM_XferBlocking(LPC_I2C0, &i2cData) == 0) { - return ERROR; - } - return SUCCESS; -} - -static Status I2CRead(uint32_t addr, uint8_t* buf, uint32_t len) -{ - I2CM_XFER_T i2cData; - - i2cData.slaveAddr = addr; - i2cData.options = 0; - i2cData.status = 0; - i2cData.txBuff = NULL; - i2cData.txSz = 0; - i2cData.rxBuff = buf; - i2cData.rxSz = len; - - if (Chip_I2CM_XferBlocking(LPC_I2C0, &i2cData) == 0) { - return ERROR; - } - return SUCCESS; -} - -static void setLsStates(uint16_t states, uint8_t* ls, uint8_t mode) -{ -#define IS_LED_SET(bit, x) ( ( ((x) & (bit)) != 0 ) ? 1 : 0 ) - - int i = 0; - - for (i = 0; i < 4; i++) { - - ls[i] |= ( (IS_LED_SET(0x0001, states)*mode << 0) - | (IS_LED_SET(0x0002, states)*mode << 2) - | (IS_LED_SET(0x0004, states)*mode << 4) - | (IS_LED_SET(0x0008, states)*mode << 6) ); - - states >>= 4; - } -} - -static void setLeds(void) -{ - uint8_t buf[5]; - uint8_t ls[4] = {0,0,0,0}; - uint16_t states = ledStateShadow; - - /* LEDs in On/Off state */ - setLsStates(states, ls, LS_MODE_ON); - - /* set the LEDs that should blink */ - setLsStates(blink0Shadow, ls, LS_MODE_BLINK0); - setLsStates(blink1Shadow, ls, LS_MODE_BLINK1); - - - buf[0] = PCA9532_LS0 | PCA9532_AUTO_INC; - buf[1] = ls[0]; - buf[2] = ls[1]; - buf[3] = ls[2]; - buf[4] = ls[3]; - I2CWrite(PCA9532_I2C_ADDR, buf, 5); -} - -/****************************************************************************** - * Public Functions - *****************************************************************************/ - -/****************************************************************************** - * - * Description: - * Initialize the PCA9532 Device - * - *****************************************************************************/ -void pca9532_init (void) -{ - /* nothing to initialize */ -} - -/****************************************************************************** - * - * Description: - * Get the LED states - * - * Params: - * [in] shadow - TRUE if the states should be retrieved from the shadow - * variables. The shadow variable are updated when any - * of setLeds, setBlink0Leds and/or setBlink1Leds are - * called. - * - * FALSE if the state should be retrieved from the PCA9532 - * device. A blinkin LED may be reported as on or off - * depending on the state when calling the function. - * - * Returns: - * A mask where a 1 indicates that a LED is on (or blinking). - * - *****************************************************************************/ -uint16_t pca9532_getLedState (uint32_t shadow) -{ - uint8_t buf[2]; - uint16_t ret = 0; - - if (shadow) { - /* a blink LED is reported as on*/ - ret = (ledStateShadow | blink0Shadow | blink1Shadow); - } - else { - - /* - * A blinking LED may be reported as on or off depending on - * its state when reading the Input register. - */ - - buf[0] = PCA9532_INPUT0; - I2CWrite(PCA9532_I2C_ADDR, buf, 1); - - I2CRead(PCA9532_I2C_ADDR, buf, 1); - ret = buf[0]; - - - buf[0] = PCA9532_INPUT1; - I2CWrite(PCA9532_I2C_ADDR, buf, 1); - - I2CRead(PCA9532_I2C_ADDR, buf, 1); - ret |= (buf[0] << 8); - - - /* invert since LEDs are active low */ - ret = ((~ret) & 0xFFFF); - } - - return (ret & ~PCA9532_NOT_USED); -} - - -/****************************************************************************** - * - * Description: - * Set LED states (on or off). - * - * Params: - * [in] ledOnMask - The LEDs that should be turned on. This mask has - * priority over ledOffMask - * [in] ledOffMask - The LEDs that should be turned off. - * - *****************************************************************************/ -void pca9532_setLeds (uint16_t ledOnMask, uint16_t ledOffMask) -{ - /* turn off leds */ - ledStateShadow &= (~(ledOffMask) & 0xffff); - - /* ledOnMask has priority over ledOffMask */ - ledStateShadow |= ledOnMask; - - /* turn off blinking */ - blink0Shadow &= (~(ledOffMask) & 0xffff); - blink1Shadow &= (~(ledOffMask) & 0xffff); - - setLeds(); -} - -/****************************************************************************** - * - * Description: - * Set the blink period for PWM0. Valid values are 0 - 255 where 0 - * means 152 Hz and 255 means 0.59 Hz. A value of 151 means 1 Hz. - * - * Params: - * [in] period - the period for pwm0 - * - *****************************************************************************/ -void pca9532_setBlink0Period(uint8_t period) -{ - uint8_t buf[2]; - - buf[0] = PCA9532_PSC0; - buf[1] = period; - I2CWrite(PCA9532_I2C_ADDR, buf, 2); -} - -/****************************************************************************** - * - * Description: - * Set the duty cycle for PWM0. Valid values are 0 - 100. 25 means the LED - * is on 25% of the period. - * - * Params: - * [in] duty - duty cycle - * - *****************************************************************************/ -void pca9532_setBlink0Duty(uint8_t duty) -{ - uint8_t buf[2]; - uint32_t tmp = duty; - if (tmp > 100) { - tmp = 100; - } - - tmp = (256 * tmp)/100; - - buf[0] = PCA9532_PWM0; - buf[1] = tmp; - I2CWrite(PCA9532_I2C_ADDR, buf, 2); -} - -/****************************************************************************** - * - * Description: - * Set the LEDs that should blink with rate and duty cycle from PWM0. - * Blinking is turned off with pca9532_setLeds. - * - * Params: - * [in] ledMask - LEDs that should blink. - * - *****************************************************************************/ -void pca9532_setBlink0Leds(uint16_t ledMask) -{ - blink0Shadow |= ledMask; - setLeds(); -} - -/****************************************************************************** - * - * Description: - * Set the blink period for PWM1. Valid values are 0 - 255 where 0 - * means 152 Hz and 255 means 0.59 Hz. A value of 151 means 1 Hz. - * - * Params: - * [in] period - The period for PWM1 - * - *****************************************************************************/ -void pca9532_setBlink1Period(uint8_t period) -{ - uint8_t buf[2]; - - buf[0] = PCA9532_PSC1; - buf[1] = period; - I2CWrite(PCA9532_I2C_ADDR, buf, 2); -} - -/****************************************************************************** - * - * Description: - * Set the duty cycle for PWM1. Valid values are 0 - 100. 25 means the LED - * is on 25% of the period. - * - * Params: - * [in] duty - duty cycle. - * - *****************************************************************************/ -void pca9532_setBlink1Duty(uint8_t duty) -{ - uint8_t buf[2]; - - uint32_t tmp = duty; - if (tmp > 100) { - tmp = 100; - } - - tmp = (256 * tmp)/100; - - buf[0] = PCA9532_PWM1; - buf[1] = tmp; - I2CWrite(PCA9532_I2C_ADDR, buf, 2); -} - -/****************************************************************************** - * - * Description: - * Set the LEDs that should blink with rate and duty cycle from PWM1. - * Blinking is turned off with pca9532_setLeds. - * - * Params: - * [in] ledMask - LEDs that should blink. - * - *****************************************************************************/ -void pca9532_setBlink1Leds(uint16_t ledMask) -{ - blink1Shadow |= ledMask; - setLeds(); -} |