199 lines
5.6 KiB
C
199 lines
5.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* sh7760fb.h -- platform data for SH7760/SH7763 LCDC framebuffer driver.
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*
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* (c) 2006-2008 MSC Vertriebsges.m.b.H.,
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* Manuel Lauss <mano@roarinelk.homelinux.net>
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* (c) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
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*/
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#ifndef _ASM_SH_SH7760FB_H
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#define _ASM_SH_SH7760FB_H
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/*
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* some bits of the colormap registers should be written as zero.
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* create a mask for that.
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*/
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#define SH7760FB_PALETTE_MASK 0x00f8fcf8
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/* The LCDC dma engine always sets bits 27-26 to 1: this is Area3 */
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#define SH7760FB_DMA_MASK 0x0C000000
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/* palette */
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#define LDPR(x) (((x) << 2))
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/* framebuffer registers and bits */
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#define LDICKR 0x400
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#define LDMTR 0x402
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/* see sh7760fb.h for LDMTR bits */
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#define LDDFR 0x404
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#define LDDFR_PABD (1 << 8)
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#define LDDFR_COLOR_MASK 0x7F
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#define LDSMR 0x406
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#define LDSMR_ROT (1 << 13)
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#define LDSARU 0x408
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#define LDSARL 0x40c
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#define LDLAOR 0x410
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#define LDPALCR 0x412
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#define LDPALCR_PALS (1 << 4)
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#define LDPALCR_PALEN (1 << 0)
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#define LDHCNR 0x414
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#define LDHSYNR 0x416
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#define LDVDLNR 0x418
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#define LDVTLNR 0x41a
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#define LDVSYNR 0x41c
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#define LDACLNR 0x41e
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#define LDINTR 0x420
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#define LDPMMR 0x424
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#define LDPSPR 0x426
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#define LDCNTR 0x428
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#define LDCNTR_DON (1 << 0)
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#define LDCNTR_DON2 (1 << 4)
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#ifdef CONFIG_CPU_SUBTYPE_SH7763
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# define LDLIRNR 0x440
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/* LDINTR bit */
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# define LDINTR_MINTEN (1 << 15)
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# define LDINTR_FINTEN (1 << 14)
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# define LDINTR_VSINTEN (1 << 13)
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# define LDINTR_VEINTEN (1 << 12)
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# define LDINTR_MINTS (1 << 11)
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# define LDINTR_FINTS (1 << 10)
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# define LDINTR_VSINTS (1 << 9)
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# define LDINTR_VEINTS (1 << 8)
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# define VINT_START (LDINTR_VSINTEN)
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# define VINT_CHECK (LDINTR_VSINTS)
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#else
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/* LDINTR bit */
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# define LDINTR_VINTSEL (1 << 12)
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# define LDINTR_VINTE (1 << 8)
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# define LDINTR_VINTS (1 << 0)
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# define VINT_START (LDINTR_VINTSEL)
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# define VINT_CHECK (LDINTR_VINTS)
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#endif
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/* HSYNC polarity inversion */
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#define LDMTR_FLMPOL (1 << 15)
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/* VSYNC polarity inversion */
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#define LDMTR_CL1POL (1 << 14)
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/* DISPLAY-ENABLE polarity inversion */
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#define LDMTR_DISPEN_LOWACT (1 << 13)
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/* DISPLAY DATA BUS polarity inversion */
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#define LDMTR_DPOL_LOWACT (1 << 12)
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/* AC modulation signal enable */
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#define LDMTR_MCNT (1 << 10)
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/* Disable output of HSYNC during VSYNC period */
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#define LDMTR_CL1CNT (1 << 9)
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/* Disable output of VSYNC during VSYNC period */
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#define LDMTR_CL2CNT (1 << 8)
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/* Display types supported by the LCDC */
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#define LDMTR_STN_MONO_4 0x00
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#define LDMTR_STN_MONO_8 0x01
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#define LDMTR_STN_COLOR_4 0x08
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#define LDMTR_STN_COLOR_8 0x09
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#define LDMTR_STN_COLOR_12 0x0A
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#define LDMTR_STN_COLOR_16 0x0B
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#define LDMTR_DSTN_MONO_8 0x11
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#define LDMTR_DSTN_MONO_16 0x13
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#define LDMTR_DSTN_COLOR_8 0x19
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#define LDMTR_DSTN_COLOR_12 0x1A
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#define LDMTR_DSTN_COLOR_16 0x1B
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#define LDMTR_TFT_COLOR_16 0x2B
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/* framebuffer color layout */
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#define LDDFR_1BPP_MONO 0x00
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#define LDDFR_2BPP_MONO 0x01
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#define LDDFR_4BPP_MONO 0x02
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#define LDDFR_6BPP_MONO 0x04
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#define LDDFR_4BPP 0x0A
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#define LDDFR_8BPP 0x0C
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#define LDDFR_16BPP_RGB555 0x1D
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#define LDDFR_16BPP_RGB565 0x2D
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/* LCDC Pixclock sources */
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#define LCDC_CLKSRC_BUSCLOCK 0
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#define LCDC_CLKSRC_PERIPHERAL 1
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#define LCDC_CLKSRC_EXTERNAL 2
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#define LDICKR_CLKSRC(x) \
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(((x) & 3) << 12)
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/* LCDC pixclock input divider. Set to 1 at a minimum! */
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#define LDICKR_CLKDIV(x) \
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((x) & 0x1f)
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struct sh7760fb_platdata {
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/* Set this member to a valid fb_videmode for the display you
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* wish to use. The following members must be initialized:
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* xres, yres, hsync_len, vsync_len, sync,
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* {left,right,upper,lower}_margin.
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* The driver uses the above members to calculate register values
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* and memory requirements. Other members are ignored but may
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* be used by other framebuffer layer components.
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*/
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struct fb_videomode *def_mode;
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/* LDMTR includes display type and signal polarity. The
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* HSYNC/VSYNC polarities are derived from the fb_var_screeninfo
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* data above; however the polarities of the following signals
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* must be encoded in the ldmtr member:
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* Display Enable signal (default high-active) DISPEN_LOWACT
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* Display Data signals (default high-active) DPOL_LOWACT
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* AC Modulation signal (default off) MCNT
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* Hsync-During-Vsync suppression (default off) CL1CNT
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* Vsync-during-vsync suppression (default off) CL2CNT
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* NOTE: also set a display type!
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* (one of LDMTR_{STN,DSTN,TFT}_{MONO,COLOR}_{4,8,12,16})
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*/
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u16 ldmtr;
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/* LDDFR controls framebuffer image format (depth, organization)
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* Use ONE of the LDDFR_?BPP_* macros!
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*/
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u16 lddfr;
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/* LDPMMR and LDPSPR control the timing of the power signals
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* for the display. Please read the SH7760 Hardware Manual,
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* Chapters 30.3.17, 30.3.18 and 30.4.6!
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*/
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u16 ldpmmr;
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u16 ldpspr;
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/* LDACLNR contains the line numbers after which the AC modulation
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* signal is to toggle. Set to ZERO for TFTs or displays which
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* do not need it. (Chapter 30.3.15 in SH7760 Hardware Manual).
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*/
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u16 ldaclnr;
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/* LDICKR contains information on pixelclock source and config.
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* Please use the LDICKR_CLKSRC() and LDICKR_CLKDIV() macros.
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* minimal value for CLKDIV() must be 1!.
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*/
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u16 ldickr;
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/* set this member to 1 if you wish to use the LCDC's hardware
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* rotation function. This is limited to displays <= 320x200
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* pixels resolution!
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*/
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int rotate; /* set to 1 to rotate 90 CCW */
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/* set this to 1 to suppress vsync irq use. */
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int novsync;
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/* blanking hook for platform. Set this if your platform can do
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* more than the LCDC in terms of blanking (e.g. disable clock
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* generator / backlight power supply / etc.
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*/
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void (*blank) (int);
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};
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#endif /* _ASM_SH_SH7760FB_H */
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