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Diffstat (limited to 'firmware/target/arm/as3525/sansa-clip')
-rw-r--r--firmware/target/arm/as3525/sansa-clip/lcd-clip.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/firmware/target/arm/as3525/sansa-clip/lcd-clip.c b/firmware/target/arm/as3525/sansa-clip/lcd-clip.c
index 21d8902739..8331b9e895 100644
--- a/firmware/target/arm/as3525/sansa-clip/lcd-clip.c
+++ b/firmware/target/arm/as3525/sansa-clip/lcd-clip.c
@@ -69,6 +69,34 @@ void lcd_write_command(int byte)
69 ; 69 ;
70} 70}
71 71
72void lcd_write_cmd_triplet(int cmd1, int cmd2, int cmd3)
73{
74#ifndef LCD_USE_FIFO_FOR_COMMANDS
75 lcd_write_command(cmd1);
76 lcd_write_command(cmd2);
77 lcd_write_command(cmd3);
78#else
79 /* combine writes to data register */
80
81 while ((DBOP_STAT & (1<<10)) == 0) /* While push fifo is not empty */
82 ;
83 /* FIFO is empty at this point */
84
85 /* unset D/C# (data or command) */
86 GPIOA_PIN(5) = 0;
87
88 /* Write command */
89 /* !!makes assumption FIFO is at least (3) levels deep! */
90 /* Only bits 15:12 and 3:0 of DBOP_DOUT are meaningful */
91 DBOP_DOUT = (cmd1 << 8) | cmd1;
92 DBOP_DOUT = (cmd2 << 8) | cmd2;
93 DBOP_DOUT = (cmd3 << 8) | cmd3;
94 /* While push fifo is not empty */
95 while ((DBOP_STAT & (1<<10)) == 0)
96 ;
97#endif
98}
99
72void lcd_write_data(const fb_data* p_bytes, int count) 100void lcd_write_data(const fb_data* p_bytes, int count)
73{ 101{
74 volatile int i = 0; 102 volatile int i = 0;