new video driver for bus vcxk framebuffers
This patch adds a new video driver * adds common bus_vcxk framebuffer driver Signed-off-by: Jens Scharsig <esw@bus-elektronik.de> [agust@denx.de: fixed lots of style issues before applying] Signed-off-by: Anatolij Gustschin <agust@denx.de>
This commit is contained in:
Jens Scharsig
Anatolij Gustschin
parent
60e9741924
commit
50217deeb0
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@ -0,0 +1,85 @@
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/*
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* (C) Copyright 2008-2009
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* BuS Elektronik GmbH & Co. KG <www.bus-elektronik.de>
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* Jens Scharsig <esw@bus-elektronik.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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U-Boot vcxk video controller driver
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======================================
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By defining CONFIG_VIDEO_VCXK this driver can be used with VC2K, VC4K and
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VC8K devices on following boards:
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board | ARCH | Vendor
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-----------------------------------------------------------------------
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EB+CPU5282-T1 | MCF5282 | BuS Elektronik GmbH & Co. KG
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EB+MCF-EVB123 | MCF5282 | BuS Elektronik GmbH & Co. KG
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EB+CPUx9K2 | AT91RM9200 | BuS Elektronik GmbH & Co. KG
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ZLSA | AT91RM9200 | Ruf Telematik AG
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Driver configuration
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--------------------
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The driver needs some defines to describe the target hardware:
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CONFIG_SYS_VCXK_BASE
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base address of VCxK hardware memory
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CONFIG_SYS_VCXK_DEFAULT_LINEALIGN
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defines the physical alignment of a pixel row
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CONFIG_SYS_VCXK_DOUBLEBUFFERED
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some boards that use vcxk prevent read from framebuffer memory.
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define this option to enable double buffering (needs 16KiB RAM)
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CONFIG_SYS_VCXK_<xxxx>_PIN
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defines the number of the I/O line PIN in the port
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valid values for <xxxx> are:
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ACKNOWLEDGE
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describes the acknowledge line from vcxk hardware
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ENABLE
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describes the enable line to vcxk hardware
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INVERT
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describes the invert line to vcxk hardware
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RESET
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describes the reset line to vcxk hardware
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REQUEST
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describes the request line to vcxk hardware
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CONFIG_SYS_VCXK_<xxxx>_PORT
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defines the I/O port which is connected with the line
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for valid values for <xxxx> see CONFIG_SYS_VCXK_<xxxx>_PIN
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CONFIG_SYS_VCXK_<xxxx>_DDR
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defines the register which configures the direction
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for valid values for <xxxx> see CONFIG_SYS_VCXK_<xxxx>_PIN
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@ -36,6 +36,7 @@ COBJS-$(CONFIG_VIDEO_SED13806) += sed13806.o
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COBJS-$(CONFIG_SED156X) += sed156x.o
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COBJS-$(CONFIG_VIDEO_SM501) += sm501.o
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COBJS-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o
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COBJS-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o
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COBJS-y += videomodes.o
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COBJS := $(COBJS-y)
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@ -0,0 +1,436 @@
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/*
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* (C) Copyright 2005-2009
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* Jens Scharsig @ BuS Elektronik GmbH & Co. KG, <esw@bus-elektronik.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <bmp_layout.h>
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#include <asm/io.h>
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vu_char *vcxk_bws = ((vu_char *) (CONFIG_SYS_VCXK_BASE));
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vu_short *vcxk_bws_word = ((vu_short *)(CONFIG_SYS_VCXK_BASE));
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vu_long *vcxk_bws_long = ((vu_long *) (CONFIG_SYS_VCXK_BASE));
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#ifdef CONFIG_AT91RM9200
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#include <asm/arch/hardware.h>
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#ifndef VCBITMASK
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#define VCBITMASK(bitno) (0x0001 << (bitno % 16))
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#endif
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#define VCXK_INIT_PIN(PORT, PIN, DDR, I0O1) \
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((AT91PS_PIO) PORT)->PIO_PER = PIN; \
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((AT91PS_PIO) PORT)->DDR = PIN; \
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((AT91PS_PIO) PORT)->PIO_MDDR = PIN; \
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if (!I0O1) ((AT91PS_PIO) PORT)->PIO_PPUER = PIN;
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#define VCXK_SET_PIN(PORT, PIN) ((AT91PS_PIO) PORT)->PIO_SODR = PIN;
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#define VCXK_CLR_PIN(PORT, PIN) ((AT91PS_PIO) PORT)->PIO_CODR = PIN;
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#define VCXK_ACKNOWLEDGE \
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(!(((AT91PS_PIO) CONFIG_SYS_VCXK_ACKNOWLEDGE_PORT)->\
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PIO_PDSR & CONFIG_SYS_VCXK_ACKNOWLEDGE_PIN))
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#elif defined(CONFIG_MCF52x2)
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#include <asm/m5282.h>
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#ifndef VCBITMASK
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#define VCBITMASK(bitno) (0x8000 >> (bitno % 16))
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#endif
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#define VCXK_INIT_PIN(PORT, PIN, DDR, I0O1) \
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if (I0O1) DDR |= PIN; else DDR &= ~PIN;
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#define VCXK_SET_PIN(PORT, PIN) PORT |= PIN;
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#define VCXK_CLR_PIN(PORT, PIN) PORT &= ~PIN;
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#define VCXK_ACKNOWLEDGE \
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(!(CONFIG_SYS_VCXK_ACKNOWLEDGE_PORT & \
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CONFIG_SYS_VCXK_ACKNOWLEDGE_PIN))
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#else
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#error no vcxk support for selected ARCH
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#endif
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#define VCXK_DISABLE\
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VCXK_SET_PIN(CONFIG_SYS_VCXK_ENABLE_PORT, CONFIG_SYS_VCXK_ENABLE_PIN)
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#define VCXK_ENABLE\
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VCXK_CLR_PIN(CONFIG_SYS_VCXK_ENABLE_PORT, CONFIG_SYS_VCXK_ENABLE_PIN)
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#ifndef CONFIG_SYS_VCXK_DOUBLEBUFFERED
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#define VCXK_BWS(x, data) vcxk_bws[x] = data;
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#define VCXK_BWS_WORD_SET(x, mask) vcxk_bws_word[x] |= mask;
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#define VCXK_BWS_WORD_CLEAR(x, mask) vcxk_bws_word[x] &= ~mask;
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#define VCXK_BWS_LONG(x, data) vcxk_bws_long[x] = data;
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#else
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u_char double_bws[16384];
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u_short *double_bws_word;
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u_long *double_bws_long;
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#define VCXK_BWS(x,data) \
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double_bws[x] = data; vcxk_bws[x] = data;
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#define VCXK_BWS_WORD_SET(x,mask) \
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double_bws_word[x] |= mask; \
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vcxk_bws_word[x] = double_bws_word[x];
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#define VCXK_BWS_WORD_CLEAR(x,mask) \
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double_bws_word[x] &= ~mask; \
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vcxk_bws_word[x] = double_bws_word[x];
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#define VCXK_BWS_LONG(x,data) \
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double_bws_long[x] = data; vcxk_bws_long[x] = data;
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#endif
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#define VC4K16_Bright1 vcxk_bws_word[0x20004 / 2]
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#define VC4K16_Bright2 vcxk_bws_word[0x20006 / 2]
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#define VC2K_Bright vcxk_bws[0x8000]
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#define VC8K_BrightH vcxk_bws[0xC000]
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#define VC8K_BrightL vcxk_bws[0xC001]
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vu_char VC4K16;
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u_long display_width;
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u_long display_height;
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u_long display_bwidth;
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ulong search_vcxk_driver(void);
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void vcxk_cls(void);
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void vcxk_setbrightness(unsigned int side, short brightness);
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int vcxk_request(void);
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int vcxk_acknowledge_wait(void);
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void vcxk_clear(void);
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/*
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****f* bus_vcxk/vcxk_init
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* FUNCTION
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* initialalize Video Controller
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* PARAMETERS
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* width visible display width in pixel
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* height visible display height in pixel
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***
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*/
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int vcxk_init(unsigned long width, unsigned long height)
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{
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#ifdef CONFIG_SYS_VCXK_RESET_PORT
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VCXK_INIT_PIN(CONFIG_SYS_VCXK_RESET_PORT,
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CONFIG_SYS_VCXK_RESET_PIN, CONFIG_SYS_VCXK_RESET_DDR, 1)
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VCXK_SET_PIN(CONFIG_SYS_VCXK_RESET_PORT, CONFIG_SYS_VCXK_RESET_PIN);
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#endif
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#ifdef CONFIG_SYS_VCXK_DOUBLEBUFFERED
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double_bws_word = (u_short *) double_bws;
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double_bws_long = (u_long *)double_bws;
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debug("%lx %lx %lx \n", double_bws, double_bws_word, double_bws_long);
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#endif
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display_width = width;
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display_height = height;
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#if (CONFIG_SYS_VCXK_DEFAULT_LINEALIGN == 4)
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display_bwidth = ((width + 31) / 8) & ~0x3;
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#elif (CONFIG_SYS_VCXK_DEFAULT_LINEALIGN == 2)
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display_bwidth = ((width + 15) / 8) & ~0x1;
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#else
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#error CONFIG_SYS_VCXK_DEFAULT_LINEALIGN is invalid
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#endif
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debug("linesize ((%d + 15) / 8 & ~0x1) = %d\n",
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display_width, display_bwidth);
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#ifdef CONFIG_SYS_VCXK_AUTODETECT
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VC4K16 = 0;
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vcxk_bws_long[1] = 0x0;
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vcxk_bws_long[1] = 0x55AAAA55;
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vcxk_bws_long[5] = 0x0;
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if (vcxk_bws_long[1] == 0x55AAAA55) VC4K16 = 1;
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#else
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VC4K16 = 1;
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debug("No autodetect: use vc4k\n");
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#endif
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VCXK_INIT_PIN(CONFIG_SYS_VCXK_INVERT_PORT,
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CONFIG_SYS_VCXK_INVERT_PIN, CONFIG_SYS_VCXK_INVERT_DDR, 1)
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VCXK_SET_PIN(CONFIG_SYS_VCXK_INVERT_PORT, CONFIG_SYS_VCXK_INVERT_PIN)
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VCXK_SET_PIN(CONFIG_SYS_VCXK_REQUEST_PORT, CONFIG_SYS_VCXK_REQUEST_PIN);
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VCXK_INIT_PIN(CONFIG_SYS_VCXK_REQUEST_PORT,
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CONFIG_SYS_VCXK_REQUEST_PIN, CONFIG_SYS_VCXK_REQUEST_DDR, 1)
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VCXK_INIT_PIN(CONFIG_SYS_VCXK_ACKNOWLEDGE_PORT,
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CONFIG_SYS_VCXK_ACKNOWLEDGE_PIN,
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CONFIG_SYS_VCXK_ACKNOWLEDGE_DDR, 0)
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VCXK_DISABLE;
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VCXK_INIT_PIN(CONFIG_SYS_VCXK_ENABLE_PORT,
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CONFIG_SYS_VCXK_ENABLE_PIN, CONFIG_SYS_VCXK_ENABLE_DDR, 1)
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vcxk_cls();
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vcxk_cls(); /* clear second/hidden page */
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vcxk_setbrightness(3, 1000);
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VCXK_ENABLE;
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return 1;
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}
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/*
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****f* bus_vcxk/vcxk_setpixel
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* FUNCTION
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* set the pixel[x,y] with the given color
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* PARAMETER
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* x pixel colum
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* y pixel row
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* color <0x40 off/black
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* >0x40 on
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***
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*/
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void vcxk_setpixel(int x, int y, unsigned long color)
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{
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vu_short dataptr;
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if ((x < display_width) && (y < display_height)) {
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dataptr = ((x / 16)) + (y * (display_bwidth >> 1));
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color = ((color >> 16) & 0xFF) |
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((color >> 8) & 0xFF) | (color & 0xFF);
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if (color > 0x40) {
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VCXK_BWS_WORD_SET(dataptr, VCBITMASK(x));
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} else {
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VCXK_BWS_WORD_CLEAR(dataptr, VCBITMASK(x));
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}
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}
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}
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/*
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****f* bus_vcxk/vcxk_loadimage
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* FUNCTION
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* copies a binary image to display memory
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***
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*/
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void vcxk_loadimage(ulong source)
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{
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int cnt;
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vcxk_acknowledge_wait();
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if (VC4K16) {
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for (cnt = 0; cnt < (16384 / 4); cnt++) {
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VCXK_BWS_LONG(cnt, (*(ulong *) source));
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source = source + 4;
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}
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} else {
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for (cnt = 0; cnt < 16384; cnt++) {
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VCXK_BWS_LONG(cnt*2, (*(vu_char *) source));
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source++;
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}
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}
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vcxk_request();
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}
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/*
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****f* bus_vcxk/vcxk_cls
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* FUNCTION
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* clear the display
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***
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*/
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void vcxk_cls(void)
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{
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vcxk_acknowledge_wait();
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vcxk_clear();
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vcxk_request();
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}
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/*
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****f* bus_vcxk/vcxk_clear(void)
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* FUNCTION
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* clear the display memory
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***
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*/
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void vcxk_clear(void)
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{
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int cnt;
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for (cnt = 0; cnt < (16384 / 4); cnt++) {
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VCXK_BWS_LONG(cnt, 0)
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}
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}
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/*
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****f* bus_vcxk/vcxk_setbrightness
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* FUNCTION
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* set the display brightness
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* PARAMETER
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* side 1 set front side brightness
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* 2 set back side brightness
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* 3 set brightness for both sides
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* brightness 0..1000
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***
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*/
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void vcxk_setbrightness(unsigned int side, short brightness)
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{
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if (VC4K16) {
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if ((side == 0) || (side & 0x1))
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VC4K16_Bright1 = brightness + 23;
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if ((side == 0) || (side & 0x2))
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VC4K16_Bright2 = brightness + 23;
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} else {
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VC2K_Bright = (brightness >> 4) + 2;
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VC8K_BrightH = (brightness + 23) >> 8;
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VC8K_BrightL = (brightness + 23) & 0xFF;
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}
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}
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/*
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****f* bus_vcxk/vcxk_request
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* FUNCTION
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* requests viewing of display memory
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***
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*/
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int vcxk_request(void)
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{
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VCXK_CLR_PIN(CONFIG_SYS_VCXK_REQUEST_PORT,
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CONFIG_SYS_VCXK_REQUEST_PIN)
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VCXK_SET_PIN(CONFIG_SYS_VCXK_REQUEST_PORT,
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CONFIG_SYS_VCXK_REQUEST_PIN);
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return 1;
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}
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/*
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****f* bus_vcxk/vcxk_acknowledge_wait
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* FUNCTION
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* wait for acknowledge viewing requests
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***
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*/
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int vcxk_acknowledge_wait(void)
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{
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while (VCXK_ACKNOWLEDGE);
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return 1;
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}
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/*
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****f* bus_vcxk/vcxk_draw_mono
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* FUNCTION
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* copies a monochrom bitmap (BMP-Format) from given memory
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* PARAMETER
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* dataptr pointer to bitmap
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* x output bitmap @ columne
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* y output bitmap @ row
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***
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*/
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void vcxk_draw_mono(unsigned char *dataptr, unsigned long linewidth,
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unsigned long cp_width, unsigned long cp_height)
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{
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unsigned char *lineptr;
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unsigned long xcnt, ycnt;
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for (ycnt = cp_height; ycnt > 0; ycnt--) {
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lineptr = dataptr;
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for (xcnt = 0; xcnt < cp_width; xcnt++) {
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if ((*lineptr << (xcnt % 8)) & 0x80)
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vcxk_setpixel(xcnt, ycnt - 1, 0xFFFFFF);
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else
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vcxk_setpixel(xcnt, ycnt-1, 0);
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if ((xcnt % 8) == 7) lineptr++;
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} /* endfor xcnt */
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dataptr = dataptr + linewidth;
|
||||
} /* endfor ycnt */
|
||||
}
|
||||
|
||||
/*
|
||||
****f* bus_vcxk/vcxk_display_bitmap
|
||||
* FUNCTION
|
||||
* copies a bitmap (BMP-Format) to the given position
|
||||
* PARAMETER
|
||||
* addr pointer to bitmap
|
||||
* x output bitmap @ columne
|
||||
* y output bitmap @ row
|
||||
***
|
||||
*/
|
||||
|
||||
int vcxk_display_bitmap(ulong addr, int x, int y)
|
||||
{
|
||||
bmp_image_t *bmp;
|
||||
unsigned long width;
|
||||
unsigned long height;
|
||||
unsigned long bpp;
|
||||
unsigned long compression;
|
||||
|
||||
unsigned long lw;
|
||||
|
||||
unsigned long c_width;
|
||||
unsigned long c_height;
|
||||
unsigned char *dataptr;
|
||||
unsigned char *lineptr;
|
||||
|
||||
bmp = (bmp_image_t *) addr;
|
||||
if ((bmp->header.signature[0] == 'B') &&
|
||||
(bmp->header.signature[1] == 'M')) {
|
||||
compression = le32_to_cpu(bmp->header.compression);
|
||||
width = le32_to_cpu(bmp->header.width);
|
||||
height = le32_to_cpu(bmp->header.height);
|
||||
bpp = le16_to_cpu(bmp->header.bit_count);
|
||||
|
||||
dataptr = (unsigned char *) bmp +
|
||||
le32_to_cpu(bmp->header.data_offset);
|
||||
|
||||
if (display_width < (width + x))
|
||||
c_width = display_width - x;
|
||||
else
|
||||
c_width = width;
|
||||
if (display_height < (height + y))
|
||||
c_height = display_height - y;
|
||||
else
|
||||
c_height = height;
|
||||
|
||||
lw = (((width + 7) / 8) + 3) & ~0x3;
|
||||
|
||||
if (c_height < height)
|
||||
dataptr = dataptr + lw * (height - c_height);
|
||||
switch (bpp) {
|
||||
case 1:
|
||||
vcxk_draw_mono(dataptr, lw, c_width, c_height);
|
||||
break;
|
||||
default:
|
||||
printf("Error: %ld bit per pixel "
|
||||
"not supported by VCxK\n", bpp);
|
||||
return 0;
|
||||
}
|
||||
} else {
|
||||
printf("Error: no valid bmp at %lx\n", (ulong) bmp);
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
****f* bus_vcxk/video_display_bitmap
|
||||
***
|
||||
*/
|
||||
|
||||
int video_display_bitmap(ulong addr, int x, int y)
|
||||
{
|
||||
vcxk_acknowledge_wait();
|
||||
if (vcxk_display_bitmap(addr, x, y)) {
|
||||
vcxk_request();
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
/*
|
||||
* (C) Copyright 2005-2009
|
||||
* Jens Scharsig @ BuS Elektronik GmbH & Co. KG, <esw@bus-elektronik.de>
|
||||
*
|
||||
* See file CREDITS for list of people who contributed to this
|
||||
* project.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
* MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef __BUS_VCXK_H_
|
||||
#define __BUS_VCXK_H_
|
||||
|
||||
extern int vcxk_init(unsigned long width, unsigned long height);
|
||||
extern void vcxk_setpixel(int x, int y, unsigned long color);
|
||||
extern int vcxk_acknowledge_wait(void);
|
||||
extern int vcxk_request(void);
|
||||
extern void vcxk_loadimage(ulong source);
|
||||
extern int vcxk_display_bitmap(ulong addr, int x, int y);
|
||||
extern void vcxk_setbrightness(unsigned int side, short brightness);
|
||||
extern int video_display_bitmap(ulong addr, int x, int y);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue