Subversion Repositories freemyipod

@
@
@    Copyright 2010 TheSeven
@
@
@    This file is part of emBIOS.
@
@    emBIOS 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.
@
@    emBIOS 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 emBIOS.  If not, see <http://www.gnu.org/licenses/>.
@
@


.section .initcode.lcd_init, "ax", %progbits
.align 2
.global lcd_init
.type lcd_init, %function
lcd_init:
        mov     pc, lr
.size lcd_init, .-lcd_init

.section .text.lcd_get_width, "ax", %progbits
.align 2
.global lcd_get_width
.type lcd_get_width, %function
lcd_get_width:
        mov     r0, #176
        mov     pc, lr
.size lcd_get_width, .-lcd_get_width

.section .text.lcd_get_height, "ax", %progbits
.align 2
.global lcd_get_height
.type lcd_get_height, %function
lcd_get_height:
        mov     r0, #132
        mov     pc, lr
.size lcd_get_hright, .-lcd_get_height

.section .text.lcd_get_bytes_per_pixel, "ax", %progbits
.align 2
.global lcd_get_bytes_per_pixel
.type lcd_get_heightbytes_per_pixel, %function
lcd_get_bytes_per_pixel:
        mov     r0, #2
        mov     pc, lr
.size lcd_get_bytes_per_pixel, .-lcd_get_bytes_per_pixel

.section .icode.displaylcd, "ax", %progbits
.align 2
.global displaylcd
.type displaylcd, %function
displaylcd:
        stmfd   sp!, {r0,r1,r4,lr}
        mov     r12, #0x38000000
        orr     r12, r12, #0x300000
        mov     r0, #0x2a
        bl      displaylcd_sendlcdc
        ldr     r0, [sp]
        bl      displaylcd_sendlcdd
        ldr     r0, [sp,#0x04]
        bl      displaylcd_sendlcdd
        mov     r0, #0x2b
        bl      displaylcd_sendlcdc
        mov     r0, r2
        tst     r0, #0x100
        eorne   r0, #0x300
        bl      displaylcd_sendlcdd
        mov     r0, r3
        tst     r0, #0x100
        eorne   r0, #0x300
        bl      displaylcd_sendlcdd
        mov     r0, #0x2c
        bl      displaylcd_sendlcdc
        ldmia   sp, {r0,r1}
        sub     r1, r0
        add     r1, r1, #1
        sub     r3, r2
        add     r3, r3, #1
        mul     r2, r1, r3
        ldr     r1, [sp,#0x10]
        cmp     r1, #-1
        bne     displaylcd_framebuf
displaylcd_color:
        ldr     r0, [sp,#0x14]
        bl      displaylcd_sendlcdd
        subs    r2, r2, #1
        bne     displaylcd_color
        ldmfd   sp!, {r4-r6,pc}
displaylcd_framebuf:
        ldrh    r0, [r1], #2
        bl      displaylcd_sendlcdd
        subs    r2, r2, #1
        bne     displaylcd_framebuf
        ldmfd   sp!, {r0,r1,r4,pc}

displaylcd_sendlcdc:
        ldrh    r4, [r12,#0x1c]
        tst     r4, #0x10
        bne     displaylcd_sendlcdc
        strh    r0, [r12,#0x04]
        mov     pc, lr
displaylcd_sendlcdd:
        ldrh    r4, [r12,#0x1c]
        tst     r4, #0x10
        bne     displaylcd_sendlcdd
        strh    r0, [r12,#0x40]
        mov     pc, lr
.size displaylcd, .-displaylcd

.section .icode.displaylcd_sync, "ax", %progbits
.align 2
.global displaylcd_sync
.type displaylcd_sync, %function
displaylcd_sync:
        mov     pc, lr
.size displaylcd_sync, .-displaylcd_sync

.section .icode.displaylcd_busy, "ax", %progbits
.align 2
.global displaylcd_busy
.type displaylcd_busy, %function
displaylcd_busy:
        mov     r0, #0
        mov     pc, lr
.size displaylcd_busy, .-displaylcd_busy

.section .icode.displaylcd_safe, "ax", %progbits
.align 2
.global displaylcd_safe
.type displaylcd_safe, %function
displaylcd_safe:
        mov     r0, #1
        mov     pc, lr
.size displaylcd_safe, .-displaylcd_safe

.section .icode.lcd_translate_color, "ax", %progbits
.align 2
.global lcd_translate_color
.type lcd_translate_color, %function
lcd_translate_color:
        cmp     r0, #0xff
        moveq   r0, #-1
        moveq   pc, lr
        cmp     r0, #0
        movne   r0, #0xff000000
        orrne   r0, r0, #0xff0000
        mov     r2, r2,lsr#2
        mov     r1, r1,lsr#3
        orr     r0, r0, r3,lsr#3
        orr     r0, r0, r2,lsl#5
        orr     r0, r0, r1,lsl#11
        mov     pc, lr
.size lcd_translate_color, .-lcd_translate_color