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https://opencores.org/ocsvn/openmsp430/openmsp430/trunk
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[/] [openmsp430/] [trunk/] [fpga/] [altera_de0_nano_soc/] [software/] [libs/] [gfx/] [gfx_controller.c] - Rev 222
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#include "gfx_controller.h" #include "timerA.h" //---------------------------------------------------------- // Initialize Graphic controller //---------------------------------------------------------- void init_gfx_ctrl (uint16_t gfx_mode, uint16_t refresh_rate) { // Local variable definition uint16_t kb_idx, b_idx; // Initialize frame buffer #ifndef VERILOG_SIMULATION VID_RAM0_ADDR = PIX_ADDR(0, 0); for( kb_idx = 0; kb_idx < FRAME_MEMORY_KB_SIZE/2; kb_idx = kb_idx + 1 ) { for( b_idx = 0; b_idx < 1024; b_idx = b_idx + 1 ) { VID_RAM0_DATA = 0x0000; } } #endif VID_RAM0_ADDR = PIX_ADDR(0, 0); // Configure Video mode GFX_CTRL = gfx_mode | GFX_REFR_START_IRQ_DIS | GFX_REFR_DONE_IRQ_DIS | GFX_GPU_EN; // Configure Refresh Rate LT24_REFRESH_SYNC = LT24_REFR_SYNC | 0x0000; LT24_REFRESH = refresh_rate; // Global configuration registers DISPLAY_WIDTH = SCREEN_WIDTH; DISPLAY_HEIGHT = SCREEN_HEIGHT; DISPLAY_SIZE = (uint32_t)SCREEN_WIDTH * (uint32_t)SCREEN_HEIGHT; #ifdef LT24_ROTATE DISPLAY_CFG = DISPLAY_NO_X_SWAP | DISPLAY_NO_Y_SWAP | DISPLAY_NO_CL_SWAP; #else DISPLAY_CFG = DISPLAY_NO_X_SWAP | DISPLAY_NO_Y_SWAP | DISPLAY_CL_SWAP; #endif // Initialize LT24 module init_lt24 (LT24_CLK_DIV2); } //---------------------------------------------------------- // Start Graphic controller //---------------------------------------------------------- void start_gfx_ctrl (void) { start_lt24(); LT24_REFRESH = LT24_REFRESH | LT24_REFR_START; } //---------------------------------------------------------- // Initialize LT24 controller //---------------------------------------------------------- void init_lt24 (uint16_t lt24_clk_div) { // Enable LCD, generate a reset and set LCD clock LT24_CFG = 0x0000; ta_wait_no_lpm(WT_1MS); LT24_CFG = LT24_ON | lt24_clk_div | LT24_RESET; ta_wait_no_lpm(WT_1MS); LT24_CFG = LT24_ON | lt24_clk_div; ta_wait_no_lpm(WT_500MS+WT_20MS); // Set color mode to 16bits/pixel LT24_CMD = 0x003A | LT24_CMD_HAS_PARAM; LT24_CMD_PARAM = 0x0055; while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); LT24_CMD = 0x0000; // Define image rotation on the display // (MADCTL command: see pages 127 and 209 of the ILI9341 spec) #ifdef LT24_ROTATE LT24_CMD = 0x0036 | LT24_CMD_HAS_PARAM; LT24_CMD_PARAM = 0x0028; while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); LT24_CMD = 0x0000; #else LT24_CMD = 0x0036 | LT24_CMD_HAS_PARAM; LT24_CMD_PARAM = 0x0008; while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); LT24_CMD = 0x0000; #endif // Send CASET LT24_CMD = 0x002A | LT24_CMD_HAS_PARAM; LT24_CMD_PARAM = ( 0 & 0xFF00)>>8; // CASET_SC[15:8] while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); LT24_CMD_PARAM = ( 0 & 0x00FF); // CASET_SC[7:0] while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); #ifdef LT24_ROTATE LT24_CMD_PARAM = ( SCREEN_WIDTH & 0xFF00)>>8; // CASET_EC[15:8] #else LT24_CMD_PARAM = ( SCREEN_HEIGHT & 0xFF00)>>8; // CASET_EC[15:8] #endif while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); #ifdef LT24_ROTATE LT24_CMD_PARAM = ( SCREEN_WIDTH & 0x00FF); // CASET_EC[7:0] #else LT24_CMD_PARAM = ( SCREEN_HEIGHT & 0x00FF); // CASET_EC[7:0] #endif while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); LT24_CMD = 0x0000; // Send PASET LT24_CMD = 0x002B | LT24_CMD_HAS_PARAM; LT24_CMD_PARAM = ( 0 & 0xFF00)>>8; // PASET_SC[15:8] while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); LT24_CMD_PARAM = ( 0 & 0x00FF); // PASET_SC[7:0] while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); #ifdef LT24_ROTATE LT24_CMD_PARAM = ( SCREEN_HEIGHT & 0xFF00)>>8; // PASET_EC[15:8] #else LT24_CMD_PARAM = ( SCREEN_WIDTH & 0xFF00)>>8; // PASET_EC[15:8] #endif while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); #ifdef LT24_ROTATE LT24_CMD_PARAM = ( SCREEN_HEIGHT & 0x00FF); // PASET_EC[7:0] #else LT24_CMD_PARAM = ( SCREEN_WIDTH & 0x00FF); // PASET_EC[7:0] #endif while((LT24_STATUS & LT24_STATUS_WAIT_PARAM)==0); LT24_CMD = 0x0000; // Initialize the LT24 display memory #ifndef VERILOG_SIMULATION LT24_CMD_DFILL = 0x0000; while((LT24_STATUS & LT24_STATUS_DFILL_BUSY)!=0); #endif // Display on LT24_CMD = 0x0035 | LT24_CMD_NO_PARAM; LT24_CMD_PARAM = 0x0000; return; } //---------------------------------------------------------- // Start LT24 controller //---------------------------------------------------------- void start_lt24(void) { // Display on LT24_CMD = 0x0029 | LT24_CMD_NO_PARAM; LT24_CMD_PARAM = 0x0000; ta_wait_no_lpm(WT_10MS); // Go out of SLEEP LT24_CMD = 0x0011 | LT24_CMD_NO_PARAM; LT24_CMD_PARAM = 0x0000; ta_wait_no_lpm(WT_100MS); return; } //---------------------------------------------------------- // Wait for the refresh to be done //---------------------------------------------------------- void sync_screen_refresh_done(void) { // Clear IRQ flag GFX_IRQ |= GFX_IRQ_REFRESH_DONE; // Wait for flag to be set while((GFX_IRQ & GFX_IRQ_REFRESH_DONE)==0); return; } //---------------------------------------------------------- // Wait for the refresh to start //---------------------------------------------------------- void sync_screen_refresh_start(void) { // Clear IRQ flag GFX_IRQ |= GFX_IRQ_REFRESH_START; // Wait for flag to be set while((GFX_IRQ & GFX_IRQ_REFRESH_START)==0); return; } //========================================================== // GPU FUNCTIONS //========================================================== void gpu_fill (uint32_t addr, uint16_t width, uint16_t length, uint16_t color, uint16_t configuration) { while((GPU_STAT & GPU_STAT_FIFO_CNT_EMPTY)<7); GPU_CMD = GPU_REC_WIDTH | width; GPU_CMD = GPU_REC_HEIGHT | length; GPU_CMD = GPU_DST_PX_ADDR; GPU_CMD32 = addr; GPU_CMD = GPU_EXEC_FILL | configuration ; GPU_CMD = color; } void gpu_copy (uint32_t src_addr, uint32_t dst_addr, uint16_t width, uint16_t length, uint16_t configuration) { while((GPU_STAT & GPU_STAT_FIFO_CNT_EMPTY)<9); GPU_CMD = GPU_REC_WIDTH | width; GPU_CMD = GPU_REC_HEIGHT | length; GPU_CMD = GPU_DST_PX_ADDR; GPU_CMD32 = dst_addr; GPU_CMD = GPU_SRC_PX_ADDR; GPU_CMD32 = src_addr; GPU_CMD = GPU_EXEC_COPY | configuration ; } void gpu_copy_transparent (uint32_t src_addr, uint32_t dst_addr, uint16_t width, uint16_t length, uint16_t trans_color, uint16_t configuration) { while((GPU_STAT & GPU_STAT_FIFO_CNT_EMPTY)<9); GPU_CMD = GPU_REC_WIDTH | width; GPU_CMD = GPU_REC_HEIGHT | length; GPU_CMD = GPU_SET_TRANS; GPU_CMD = trans_color; GPU_CMD = GPU_DST_PX_ADDR; GPU_CMD32 = dst_addr; GPU_CMD = GPU_SRC_PX_ADDR; GPU_CMD32 = src_addr; GPU_CMD = GPU_EXEC_COPY_TRANS | configuration ; } inline void gpu_wait_done (void) { while((GPU_STAT & GPU_STAT_BUSY)!=0); }
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