166 lines
3.0 KiB
C
166 lines
3.0 KiB
C
#include "ddk750_help.h"
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#include "ddk750_reg.h"
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#include "ddk750_power.h"
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void ddk750_setDPMS(DPMS_t state)
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{
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unsigned int value;
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if (sm750_get_chip_type() == SM750LE) {
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value = PEEK32(CRT_DISPLAY_CTRL) & ~CRT_DISPLAY_CTRL_DPMS_MASK;
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value |= (state << CRT_DISPLAY_CTRL_DPMS_SHIFT);
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POKE32(CRT_DISPLAY_CTRL, value);
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} else {
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value = PEEK32(SYSTEM_CTRL);
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value = (value & ~SYSTEM_CTRL_DPMS_MASK) | state;
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POKE32(SYSTEM_CTRL, value);
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}
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}
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static unsigned int getPowerMode(void)
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{
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if (sm750_get_chip_type() == SM750LE)
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return 0;
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return PEEK32(POWER_MODE_CTRL) & POWER_MODE_CTRL_MODE_MASK;
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}
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/*
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* SM50x can operate in one of three modes: 0, 1 or Sleep.
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* On hardware reset, power mode 0 is default.
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*/
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void setPowerMode(unsigned int powerMode)
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{
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unsigned int control_value = 0;
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control_value = PEEK32(POWER_MODE_CTRL) & ~POWER_MODE_CTRL_MODE_MASK;
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if (sm750_get_chip_type() == SM750LE)
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return;
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switch (powerMode) {
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case POWER_MODE_CTRL_MODE_MODE0:
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control_value |= POWER_MODE_CTRL_MODE_MODE0;
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break;
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case POWER_MODE_CTRL_MODE_MODE1:
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control_value |= POWER_MODE_CTRL_MODE_MODE1;
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break;
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case POWER_MODE_CTRL_MODE_SLEEP:
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control_value |= POWER_MODE_CTRL_MODE_SLEEP;
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break;
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default:
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break;
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}
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/* Set up other fields in Power Control Register */
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if (powerMode == POWER_MODE_CTRL_MODE_SLEEP) {
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control_value &= ~POWER_MODE_CTRL_OSC_INPUT;
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#ifdef VALIDATION_CHIP
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control_value &= ~POWER_MODE_CTRL_336CLK;
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#endif
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} else {
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control_value |= POWER_MODE_CTRL_OSC_INPUT;
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#ifdef VALIDATION_CHIP
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control_value |= POWER_MODE_CTRL_336CLK;
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#endif
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}
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/* Program new power mode. */
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POKE32(POWER_MODE_CTRL, control_value);
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}
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void setCurrentGate(unsigned int gate)
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{
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unsigned int gate_reg;
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unsigned int mode;
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/* Get current power mode. */
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mode = getPowerMode();
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switch (mode) {
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case POWER_MODE_CTRL_MODE_MODE0:
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gate_reg = MODE0_GATE;
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break;
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case POWER_MODE_CTRL_MODE_MODE1:
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gate_reg = MODE1_GATE;
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break;
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default:
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gate_reg = MODE0_GATE;
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break;
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}
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POKE32(gate_reg, gate);
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}
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/*
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* This function enable/disable the 2D engine.
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*/
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void enable2DEngine(unsigned int enable)
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{
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u32 gate;
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gate = PEEK32(CURRENT_GATE);
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if (enable)
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gate |= (CURRENT_GATE_DE | CURRENT_GATE_CSC);
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else
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gate &= ~(CURRENT_GATE_DE | CURRENT_GATE_CSC);
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setCurrentGate(gate);
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}
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void enableDMA(unsigned int enable)
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{
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u32 gate;
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/* Enable DMA Gate */
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gate = PEEK32(CURRENT_GATE);
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if (enable)
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gate |= CURRENT_GATE_DMA;
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else
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gate &= ~CURRENT_GATE_DMA;
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setCurrentGate(gate);
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}
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/*
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* This function enable/disable the GPIO Engine
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*/
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void enableGPIO(unsigned int enable)
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{
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u32 gate;
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/* Enable GPIO Gate */
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gate = PEEK32(CURRENT_GATE);
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if (enable)
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gate |= CURRENT_GATE_GPIO;
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else
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gate &= ~CURRENT_GATE_GPIO;
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setCurrentGate(gate);
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}
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/*
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* This function enable/disable the I2C Engine
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*/
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void enableI2C(unsigned int enable)
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{
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u32 gate;
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/* Enable I2C Gate */
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gate = PEEK32(CURRENT_GATE);
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if (enable)
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gate |= CURRENT_GATE_I2C;
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else
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gate &= ~CURRENT_GATE_I2C;
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setCurrentGate(gate);
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}
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