| Hannes Petermaier | 3c5fabd | 2014-03-06 14:39:06 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 Hannes Petermaier <oe5hpm@oevsv.at> - |
| 3 | * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #ifndef AM335X_FB_H |
| 9 | #define AM335X_FB_H |
| 10 | |
| 11 | #define HSVS_CONTROL (0x01 << 25) /* |
| 12 | * 0 = lcd_lp and lcd_fp are driven on |
| 13 | * opposite edges of pixel clock than |
| 14 | * the lcd_pixel_o |
| 15 | * 1 = lcd_lp and lcd_fp are driven |
| 16 | * according to bit 24 Note that this |
| 17 | * bit MUST be set to '0' for Passive |
| 18 | * Matrix displays the edge timing is |
| 19 | * fixed |
| 20 | */ |
| 21 | #define HSVS_RISEFALL (0x01 << 24) /* |
| 22 | * 0 = lcd_lp and lcd_fp are driven on |
| 23 | * the rising edge of pixel clock (bit |
| 24 | * 25 must be set to 1) |
| 25 | * 1 = lcd_lp and lcd_fp are driven on |
| 26 | * the falling edge of pixel clock (bit |
| 27 | * 25 must be set to 1) |
| 28 | */ |
| 29 | #define DE_INVERT (0x01 << 23) /* |
| 30 | * 0 = DE is low-active |
| 31 | * 1 = DE is high-active |
| 32 | */ |
| 33 | #define PXCLK_INVERT (0x01 << 22) /* |
| 34 | * 0 = pix-clk is high-active |
| 35 | * 1 = pic-clk is low-active |
| 36 | */ |
| 37 | #define HSYNC_INVERT (0x01 << 21) /* |
| 38 | * 0 = HSYNC is active high |
| 39 | * 1 = HSYNC is avtive low |
| 40 | */ |
| 41 | #define VSYNC_INVERT (0x01 << 20) /* |
| 42 | * 0 = VSYNC is active high |
| 43 | * 1 = VSYNC is active low |
| 44 | */ |
| 45 | |
| 46 | struct am335x_lcdpanel { |
| 47 | unsigned int hactive; /* Horizontal active area */ |
| 48 | unsigned int vactive; /* Vertical active area */ |
| 49 | unsigned int bpp; /* bits per pixel */ |
| 50 | unsigned int hfp; /* Horizontal front porch */ |
| 51 | unsigned int hbp; /* Horizontal back porch */ |
| 52 | unsigned int hsw; /* Horizontal Sync Pulse Width */ |
| 53 | unsigned int vfp; /* Vertical front porch */ |
| 54 | unsigned int vbp; /* Vertical back porch */ |
| 55 | unsigned int vsw; /* Vertical Sync Pulse Width */ |
| 56 | unsigned int pxl_clk_div; /* Pixel clock divider*/ |
| 57 | unsigned int pol; /* polarity of sync, clock signals */ |
| 58 | unsigned int pon_delay; /* |
| 59 | * time in ms for turning on lcd after |
| 60 | * initializing lcd-controller |
| 61 | */ |
| 62 | void (*panel_power_ctrl)(int); /* fp for power on/off display */ |
| 63 | }; |
| 64 | |
| 65 | int am335xfb_init(struct am335x_lcdpanel *panel); |
| 66 | |
| 67 | #endif /* AM335X_FB_H */ |