/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  Header file for AT91/AT32 LCD Controller
 *
 *  Data structure and register user interface
 *
 *  Copyright (C) 2007 Atmel Corporation
 */
#ifndef __ATMEL_LCDC_H__
#define __ATMEL_LCDC_H__

#include <linux/workqueue.h>

/* Way LCD wires are connected to the chip:
 * Some Atmel chips use BGR color mode (instead of standard RGB)
 * A swapped wiring onboard can bring to RGB mode.
 */
#define ATMEL_LCDC_WIRING_BGR   0
#define ATMEL_LCDC_WIRING_RGB   1


 /* LCD Controller info data structure, stored in device platform_data */
struct atmel_lcdfb_pdata {
        unsigned int            guard_time;
        bool                    lcdcon_is_backlight;
        bool                    lcdcon_pol_negative;
        u8                      default_bpp;
        u8                      lcd_wiring_mode;
        unsigned int            default_lcdcon2;
        unsigned int            default_dmacon;
        void (*atmel_lcdfb_power_control)(struct atmel_lcdfb_pdata *pdata, int on);
        struct fb_monspecs      *default_monspecs;

        struct list_head        pwr_gpios;
};

#define ATMEL_LCDC_DMABADDR1    0x00
#define ATMEL_LCDC_DMABADDR2    0x04
#define ATMEL_LCDC_DMAFRMPT1    0x08
#define ATMEL_LCDC_DMAFRMPT2    0x0c
#define ATMEL_LCDC_DMAFRMADD1   0x10
#define ATMEL_LCDC_DMAFRMADD2   0x14

#define ATMEL_LCDC_DMAFRMCFG    0x18
#define ATMEL_LCDC_FRSIZE       (0x7fffff <<  0)
#define ATMEL_LCDC_BLENGTH_OFFSET       24
#define ATMEL_LCDC_BLENGTH      (0x7f     << ATMEL_LCDC_BLENGTH_OFFSET)

#define ATMEL_LCDC_DMACON       0x1c
#define ATMEL_LCDC_DMAEN        (0x1 << 0)
#define ATMEL_LCDC_DMARST       (0x1 << 1)
#define ATMEL_LCDC_DMABUSY      (0x1 << 2)
#define         ATMEL_LCDC_DMAUPDT      (0x1 << 3)
#define         ATMEL_LCDC_DMA2DEN      (0x1 << 4)

#define ATMEL_LCDC_DMA2DCFG     0x20
#define         ATMEL_LCDC_ADDRINC_OFFSET       0
#define         ATMEL_LCDC_ADDRINC              (0xffff)
#define         ATMEL_LCDC_PIXELOFF_OFFSET      24
#define         ATMEL_LCDC_PIXELOFF             (0x1f << 24)

#define ATMEL_LCDC_LCDCON1      0x0800
#define ATMEL_LCDC_BYPASS       (1     <<  0)
#define ATMEL_LCDC_CLKVAL_OFFSET        12
#define ATMEL_LCDC_CLKVAL       (0x1ff << ATMEL_LCDC_CLKVAL_OFFSET)
#define ATMEL_LCDC_LINCNT       (0x7ff << 21)

#define ATMEL_LCDC_LCDCON2      0x0804
#define ATMEL_LCDC_DISTYPE      (3 << 0)
#define         ATMEL_LCDC_DISTYPE_STNMONO      (0 << 0)
#define         ATMEL_LCDC_DISTYPE_STNCOLOR     (1 << 0)
#define         ATMEL_LCDC_DISTYPE_TFT          (2 << 0)
#define ATMEL_LCDC_SCANMOD      (1 << 2)
#define         ATMEL_LCDC_SCANMOD_SINGLE       (0 << 2)
#define         ATMEL_LCDC_SCANMOD_DUAL         (1 << 2)
#define ATMEL_LCDC_IFWIDTH      (3 << 3)
#define         ATMEL_LCDC_IFWIDTH_4            (0 << 3)
#define         ATMEL_LCDC_IFWIDTH_8            (1 << 3)
#define         ATMEL_LCDC_IFWIDTH_16           (2 << 3)
#define ATMEL_LCDC_PIXELSIZE    (7 << 5)
#define         ATMEL_LCDC_PIXELSIZE_1          (0 << 5)
#define         ATMEL_LCDC_PIXELSIZE_2          (1 << 5)
#define         ATMEL_LCDC_PIXELSIZE_4          (2 << 5)
#define         ATMEL_LCDC_PIXELSIZE_8          (3 << 5)
#define         ATMEL_LCDC_PIXELSIZE_16         (4 << 5)
#define         ATMEL_LCDC_PIXELSIZE_24         (5 << 5)
#define         ATMEL_LCDC_PIXELSIZE_32         (6 << 5)
#define ATMEL_LCDC_INVVD        (1 << 8)
#define         ATMEL_LCDC_INVVD_NORMAL         (0 << 8)
#define         ATMEL_LCDC_INVVD_INVERTED       (1 << 8)
#define ATMEL_LCDC_INVFRAME     (1 << 9 )
#define         ATMEL_LCDC_INVFRAME_NORMAL      (0 << 9)
#define         ATMEL_LCDC_INVFRAME_INVERTED    (1 << 9)
#define ATMEL_LCDC_INVLINE      (1 << 10)
#define         ATMEL_LCDC_INVLINE_NORMAL       (0 << 10)
#define         ATMEL_LCDC_INVLINE_INVERTED     (1 << 10)
#define ATMEL_LCDC_INVCLK       (1 << 11)
#define         ATMEL_LCDC_INVCLK_NORMAL        (0 << 11)
#define         ATMEL_LCDC_INVCLK_INVERTED      (1 << 11)
#define ATMEL_LCDC_INVDVAL      (1 << 12)
#define         ATMEL_LCDC_INVDVAL_NORMAL       (0 << 12)
#define         ATMEL_LCDC_INVDVAL_INVERTED     (1 << 12)
#define ATMEL_LCDC_CLKMOD       (1 << 15)
#define         ATMEL_LCDC_CLKMOD_ACTIVEDISPLAY (0 << 15)
#define         ATMEL_LCDC_CLKMOD_ALWAYSACTIVE  (1 << 15)
#define ATMEL_LCDC_MEMOR        (1 << 31)
#define         ATMEL_LCDC_MEMOR_BIG            (0 << 31)
#define         ATMEL_LCDC_MEMOR_LITTLE         (1 << 31)

#define ATMEL_LCDC_TIM1         0x0808
#define ATMEL_LCDC_VFP          (0xffU <<  0)
#define ATMEL_LCDC_VBP_OFFSET           8
#define ATMEL_LCDC_VBP          (0xffU <<  ATMEL_LCDC_VBP_OFFSET)
#define ATMEL_LCDC_VPW_OFFSET           16
#define ATMEL_LCDC_VPW          (0x3fU << ATMEL_LCDC_VPW_OFFSET)
#define ATMEL_LCDC_VHDLY_OFFSET         24
#define ATMEL_LCDC_VHDLY        (0xfU  << ATMEL_LCDC_VHDLY_OFFSET)

#define ATMEL_LCDC_TIM2         0x080c
#define ATMEL_LCDC_HBP          (0xffU  <<  0)
#define ATMEL_LCDC_HPW_OFFSET           8
#define ATMEL_LCDC_HPW          (0x3fU  <<  ATMEL_LCDC_HPW_OFFSET)
#define ATMEL_LCDC_HFP_OFFSET           21
#define ATMEL_LCDC_HFP          (0x7ffU << ATMEL_LCDC_HFP_OFFSET)

#define ATMEL_LCDC_LCDFRMCFG    0x0810
#define ATMEL_LCDC_LINEVAL      (0x7ff <<  0)
#define ATMEL_LCDC_HOZVAL_OFFSET        21
#define ATMEL_LCDC_HOZVAL       (0x7ff << ATMEL_LCDC_HOZVAL_OFFSET)

#define ATMEL_LCDC_FIFO         0x0814
#define ATMEL_LCDC_FIFOTH       (0xffff)

#define ATMEL_LCDC_MVAL         0x0818

#define ATMEL_LCDC_DP1_2        0x081c
#define ATMEL_LCDC_DP4_7        0x0820
#define ATMEL_LCDC_DP3_5        0x0824
#define ATMEL_LCDC_DP2_3        0x0828
#define ATMEL_LCDC_DP5_7        0x082c
#define ATMEL_LCDC_DP3_4        0x0830
#define ATMEL_LCDC_DP4_5        0x0834
#define ATMEL_LCDC_DP6_7        0x0838
#define ATMEL_LCDC_DP1_2_VAL    (0xff)
#define ATMEL_LCDC_DP4_7_VAL    (0xfffffff)
#define ATMEL_LCDC_DP3_5_VAL    (0xfffff)
#define ATMEL_LCDC_DP2_3_VAL    (0xfff)
#define ATMEL_LCDC_DP5_7_VAL    (0xfffffff)
#define ATMEL_LCDC_DP3_4_VAL    (0xffff)
#define ATMEL_LCDC_DP4_5_VAL    (0xfffff)
#define ATMEL_LCDC_DP6_7_VAL    (0xfffffff)

#define ATMEL_LCDC_PWRCON       0x083c
#define ATMEL_LCDC_PWR          (1    <<  0)
#define ATMEL_LCDC_GUARDT_OFFSET        1
#define ATMEL_LCDC_GUARDT       (0x7f <<  ATMEL_LCDC_GUARDT_OFFSET)
#define ATMEL_LCDC_BUSY         (1    << 31)

#define ATMEL_LCDC_CONTRAST_CTR 0x0840
#define ATMEL_LCDC_PS           (3 << 0)
#define         ATMEL_LCDC_PS_DIV1              (0 << 0)
#define         ATMEL_LCDC_PS_DIV2              (1 << 0)
#define         ATMEL_LCDC_PS_DIV4              (2 << 0)
#define         ATMEL_LCDC_PS_DIV8              (3 << 0)
#define ATMEL_LCDC_POL          (1 << 2)
#define         ATMEL_LCDC_POL_NEGATIVE         (0 << 2)
#define         ATMEL_LCDC_POL_POSITIVE         (1 << 2)
#define ATMEL_LCDC_ENA          (1 << 3)
#define         ATMEL_LCDC_ENA_PWMDISABLE       (0 << 3)
#define         ATMEL_LCDC_ENA_PWMENABLE        (1 << 3)

#define ATMEL_LCDC_CONTRAST_VAL 0x0844
#define ATMEL_LCDC_CVAL (0xff)

#define ATMEL_LCDC_IER          0x0848
#define ATMEL_LCDC_IDR          0x084c
#define ATMEL_LCDC_IMR          0x0850
#define ATMEL_LCDC_ISR          0x0854
#define ATMEL_LCDC_ICR          0x0858
#define ATMEL_LCDC_LNI          (1 << 0)
#define ATMEL_LCDC_LSTLNI       (1 << 1)
#define ATMEL_LCDC_EOFI         (1 << 2)
#define ATMEL_LCDC_UFLWI        (1 << 4)
#define ATMEL_LCDC_OWRI         (1 << 5)
#define ATMEL_LCDC_MERI         (1 << 6)

#define ATMEL_LCDC_LUT(n)       (0x0c00 + ((n)*4))

#endif /* __ATMEL_LCDC_H__ */