rockbox/firmware/system.c

1035 lines
31 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include "config.h"
#include <stdbool.h>
#include "lcd.h"
#include "font.h"
#include "system.h"
#include "kernel.h"
#ifndef SIMULATOR
long cpu_frequency = CPU_FREQ;
#endif
#if CONFIG_CPU == TCC730
void* volatile interrupt_vector[16] __attribute__ ((section(".idata")));
void ddma_wait_idle(void) __attribute__ ((section (".icode")));
void ddma_wait_idle(void)
{
do {
} while ((DDMACOM & 3) != 0);
}
void ddma_transfer(int dir, int mem, void* intAddr, long extAddr, int num)
__attribute__ ((section (".icode")));
void ddma_transfer(int dir, int mem, void* intAddr, long extAddr, int num) {
int irq = set_irq_level(1);
ddma_wait_idle();
long externalAddress = (long) extAddr;
long internalAddress = ((long) intAddr) & 0xFFFF;
/* HW wants those two in word units. */
num /= 2;
externalAddress /= 2;
DDMACFG = (dir << 1) | (mem << 2);
DDMAIADR = internalAddress;
DDMAEADR = externalAddress;
DDMANUM = num;
DDMACOM |= 0x4; /* start */
ddma_wait_idle(); /* wait for completion */
set_irq_level(irq);
}
static void ddma_wait_idle_noicode(void)
{
do {
} while ((DDMACOM & 3) != 0);
}
static void ddma_transfer_noicode(int dir, int mem, long intAddr, long extAddr, int num) {
int irq = set_irq_level(1);
ddma_wait_idle_noicode();
long externalAddress = (long) extAddr;
long internalAddress = (long) intAddr;
/* HW wants those two in word units. */
num /= 2;
externalAddress /= 2;
DDMACFG = (dir << 1) | (mem << 2);
DDMAIADR = internalAddress;
DDMAEADR = externalAddress;
DDMANUM = num;
DDMACOM |= 0x4; /* start */
ddma_wait_idle_noicode(); /* wait for completion */
set_irq_level(irq);
}
/* Some linker-defined symbols */
extern int icodecopy;
extern int icodesize;
extern int icodestart;
/* change the CPU frequency */
void set_pll_freq(int pll_index, long freq_out) {
volatile unsigned int* plldata;
volatile unsigned char* pllcon;
if (pll_index == 0) {
plldata = &PLL0DATA;
pllcon = &PLL0CON;
} else {
plldata = &PLL1DATA;
pllcon = &PLL1CON;
}
/* VC0 is 32768 Hz */
#define VC0FREQ (32768L)
unsigned m = (freq_out / VC0FREQ) - 2;
/* TODO: if m is too small here, use the divider bits [0,1] */
*plldata = m << 2;
*pllcon |= 0x1; /* activate */
do {
} while ((*pllcon & 0x2) == 0); /* wait for stabilization */
}
int smsc_version(void) {
int v;
int* smsc_ver_addr = (int*)0x4C20;
__asm__ ("ldc %0, @%1" : "=r"(v) : "a"(smsc_ver_addr));
v &= 0xFF;
if (v < 4 || v == 0xFF) {
return 3;
}
return v;
}
void smsc_delay() {
int i;
/* FIXME: tune the delay.
!!! Delay should depend on CPU speed !!!
*/
for (i = 0; i < 100; i++) {
}
}
static void extra_init(void) {
/* Power on stuff */
P1 |= 0x07;
P1CON |= 0x1f;
/* P5 conf
* lines 0, 1 & 4 are digital, other analog. :
*/
P5CON = 0xec;
P6CON = 0x19;
/* P7 conf
nothing to do: all are inputs
(reset value of the register is good)
*/
/* SMSC chip config (?) */
P10CON |= 0x20;
P6 &= 0xF7;
P10 &= 0x20;
smsc_delay();
if (smsc_version() < 4) {
P6 |= 0x08;
P10 |= 0x20;
}
}
/* called by crt0 */
void system_init(void)
{
/* Disable watchdog */
WDTEN = 0xA5;
/****************
* GPIO ports
*/
/* keep alive (?) -- clear the bit to prevent crash at start (??) */
P8 = 0x00;
P8CON = 0x01;
/* smsc chip init (?) */
P10 = 0x20;
P6 = 0x08;
P10CON = 0x20;
P6CON = 0x08;
/********
* CPU
*/
/* PLL0 (cpu osc. frequency) */
#if 0
set_pll_freq(0, CPU_FREQ);
PLL0CON |= 0x4; /* use as CPU clock */
#endif
/*******************
* configure S(D)RAM
*/
/************************
* Copy .icode section to icram
*/
ddma_transfer_noicode(0, 0, 0x40, (long)&icodecopy, (int)&icodesize);
/***************************
* Interrupts
*/
/* priorities ? */
/* mask */
IMR0 = 0;
IMR1 = 0;
/* IRQ0 BT INT */
/* IRQ1 RTC INT */
/* IRQ2 TA INT */
/* IRQ3 TAOV INT */
/* IRQ4 TB INT */
/* IRQ5 TBOV INT */
/* IRQ6 TC INT */
/* IRQ7 TCOV INT */
/* IRQ8 USB INT */
/* IRQ9 PPIC INT */
/* IRQ10 UART_Rx/UART_Err/ UART_tx INT */
/* IRQ11 IIC INT */
/* IRQ12 SIO INT */
/* IRQ13 IIS0 INT */
/* IRQ14 IIS1 INT */
/* IRQ15 <20> */
extra_init();
}
#elif CONFIG_CPU == MCF5249
#define default_interrupt(name) \
extern __attribute__((weak,alias("UIE"))) void name (void);
static const char* const irqname[] = {
"", "", "AccessErr","AddrErr","IllInstr", "", "","",
"PrivVio","Trace","Line-A", "Line-F","Debug","","FormErr","Uninit",
"","","","","","","","",
"Spurious","Level1","Level2","Level3","Level4","Level5","Level6","Level7",
"Trap0","Trap1","Trap2","Trap3","Trap4","Trap5","Trap6","Trap7",
"Trap8","Trap9","Trap10","Trap11","Trap12","Trap13","Trap14","Trap15",
"SWT","Timer0","Timer1","I2C","UART1","UART2","DMA0","DMA1",
"DMA2","DMA3","QSPI","","","","","",
"PDIR1FULL","PDIR2FULL","EBUTXEMPTY","IIS2TXEMPTY",
"IIS1TXEMPTY","PDIR3FULL","PDIR3RESYN","UQ2CHANERR",
"AUDIOTICK","PDIR2RESYN","PDIR2UNOV","PDIR1RESYN",
"PDIR1UNOV","UQ1CHANERR","IEC2BUFATTEN","IEC2PARERR",
"IEC2VALNOGOOD","IEC2CNEW","IEC1BUFATTEN","UCHANTXNF",
"UCHANTXUNDER","UCHANTXEMPTY","PDIR3UNOV","IEC1PARERR",
"IEC1VALNOGOOD","IEC1CNEW","EBUTXRESYN","EBUTXUNOV",
"IIS2TXRESYN","IIS2TXUNOV","IIS1TXRESYN","IIS1TXUNOV",
"GPIO0","GPI1","GPI2","GPI3","GPI4","GPI5","GPI6","GPI7",
"","","","","","","","SOFTINT0",
"SOFTINT1","SOFTINT2","SOFTINT3","",
"","CDROMCRCERR","CDROMNOSYNC","CDROMILSYNC",
"CDROMNEWBLK","","","","","","","",
"","","","","","","","",
"","","","","","","","",
"","","","","","","","",
"","","","","","","","",
"","","","","","","","",
"","","","","","","","",
"","","","","","","","",
"","","","","","","",""
};
default_interrupt (TRAP0); /* Trap #0 */
default_interrupt (TRAP1); /* Trap #1 */
default_interrupt (TRAP2); /* Trap #2 */
default_interrupt (TRAP3); /* Trap #3 */
default_interrupt (TRAP4); /* Trap #4 */
default_interrupt (TRAP5); /* Trap #5 */
default_interrupt (TRAP6); /* Trap #6 */
default_interrupt (TRAP7); /* Trap #7 */
default_interrupt (TRAP8); /* Trap #8 */
default_interrupt (TRAP9); /* Trap #9 */
default_interrupt (TRAP10); /* Trap #10 */
default_interrupt (TRAP11); /* Trap #11 */
default_interrupt (TRAP12); /* Trap #12 */
default_interrupt (TRAP13); /* Trap #13 */
default_interrupt (TRAP14); /* Trap #14 */
default_interrupt (TRAP15); /* Trap #15 */
default_interrupt (SWT); /* Software Watchdog Timer */
default_interrupt (TIMER0); /* Timer 0 */
default_interrupt (TIMER1); /* Timer 1 */
default_interrupt (I2C); /* I2C */
default_interrupt (UART1); /* UART 1 */
default_interrupt (UART2); /* UART 2 */
default_interrupt (DMA0); /* DMA 0 */
default_interrupt (DMA1); /* DMA 1 */
default_interrupt (DMA2); /* DMA 2 */
default_interrupt (DMA3); /* DMA 3 */
default_interrupt (QSPI); /* QSPI */
default_interrupt (PDIR1FULL); /* Processor data in 1 full */
default_interrupt (PDIR2FULL); /* Processor data in 2 full */
default_interrupt (EBUTXEMPTY); /* EBU transmit FIFO empty */
default_interrupt (IIS2TXEMPTY); /* IIS2 transmit FIFO empty */
default_interrupt (IIS1TXEMPTY); /* IIS1 transmit FIFO empty */
default_interrupt (PDIR3FULL); /* Processor data in 3 full */
default_interrupt (PDIR3RESYN); /* Processor data in 3 resync */
default_interrupt (UQ2CHANERR); /* IEC958-2 Rx U/Q channel error */
default_interrupt (AUDIOTICK); /* "tick" interrupt */
default_interrupt (PDIR2RESYN); /* Processor data in 2 resync */
default_interrupt (PDIR2UNOV); /* Processor data in 2 under/overrun */
default_interrupt (PDIR1RESYN); /* Processor data in 1 resync */
default_interrupt (PDIR1UNOV); /* Processor data in 1 under/overrun */
default_interrupt (UQ1CHANERR); /* IEC958-1 Rx U/Q channel error */
default_interrupt (IEC2BUFATTEN);/* IEC958-2 channel buffer full */
default_interrupt (IEC2PARERR); /* IEC958-2 Rx parity or symbol error */
default_interrupt (IEC2VALNOGOOD);/* IEC958-2 flag not good */
default_interrupt (IEC2CNEW); /* IEC958-2 New C-channel received */
default_interrupt (IEC1BUFATTEN);/* IEC958-1 channel buffer full */
default_interrupt (UCHANTXNF); /* U channel Tx reg next byte is first */
default_interrupt (UCHANTXUNDER);/* U channel Tx reg underrun */
default_interrupt (UCHANTXEMPTY);/* U channel Tx reg is empty */
default_interrupt (PDIR3UNOV); /* Processor data in 3 under/overrun */
default_interrupt (IEC1PARERR); /* IEC958-1 Rx parity or symbol error */
default_interrupt (IEC1VALNOGOOD);/* IEC958-1 flag not good */
default_interrupt (IEC1CNEW); /* IEC958-1 New C-channel received */
default_interrupt (EBUTXRESYN); /* EBU Tx FIFO resync */
default_interrupt (EBUTXUNOV); /* EBU Tx FIFO under/overrun */
default_interrupt (IIS2TXRESYN); /* IIS2 Tx FIFO resync */
default_interrupt (IIS2TXUNOV); /* IIS2 Tx FIFO under/overrun */
default_interrupt (IIS1TXRESYN); /* IIS1 Tx FIFO resync */
default_interrupt (IIS1TXUNOV); /* IIS1 Tx FIFO under/overrun */
default_interrupt (GPI0); /* GPIO interrupt 0 */
default_interrupt (GPI1); /* GPIO interrupt 1 */
default_interrupt (GPI2); /* GPIO interrupt 2 */
default_interrupt (GPI3); /* GPIO interrupt 3 */
default_interrupt (GPI4); /* GPIO interrupt 4 */
default_interrupt (GPI5); /* GPIO interrupt 5 */
default_interrupt (GPI6); /* GPIO interrupt 6 */
default_interrupt (GPI7); /* GPIO interrupt 7 */
default_interrupt (SOFTINT0); /* Software interrupt 0 */
default_interrupt (SOFTINT1); /* Software interrupt 1 */
default_interrupt (SOFTINT2); /* Software interrupt 2 */
default_interrupt (SOFTINT3); /* Software interrupt 3 */
default_interrupt (CDROMCRCERR); /* CD-ROM CRC error */
default_interrupt (CDROMNOSYNC); /* CD-ROM No sync */
default_interrupt (CDROMILSYNC); /* CD-ROM Illegal sync */
default_interrupt (CDROMNEWBLK); /* CD-ROM New block */
void UIE (void) /* Unexpected Interrupt or Exception */
{
unsigned int format_vector, pc;
int vector;
char str[32];
asm volatile ("move.l (52,%%sp),%0": "=r"(format_vector));
asm volatile ("move.l (56,%%sp),%0": "=r"(pc));
vector = (format_vector >> 18) & 0xff;
/* clear screen */
lcd_clear_display ();
#ifdef HAVE_LCD_BITMAP
lcd_setfont(FONT_SYSFIXED);
#endif
snprintf(str,sizeof(str),"I%02x:%s",vector,irqname[vector]);
lcd_puts(0,0,str);
snprintf(str,sizeof(str),"at %08x",pc);
lcd_puts(0,1,str);
lcd_update();
while (1)
{
}
}
/* reset vectors are handled in crt0.S */
void (* const vbr[]) (void) __attribute__ ((section (".vectors"))) =
{
UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,TIMER0,UIE,UIE,UIE,UIE,
TRAP0,TRAP1,TRAP2,TRAP3,TRAP4,TRAP5,TRAP6,TRAP7,
TRAP8,TRAP9,TRAP10,TRAP11,TRAP12,TRAP13,TRAP14,TRAP15,
SWT,UIE,TIMER1,I2C,UART1,UART2,DMA0,DMA1,
DMA2,DMA3,QSPI,UIE,UIE,UIE,UIE,UIE,
PDIR1FULL,PDIR2FULL,EBUTXEMPTY,IIS2TXEMPTY,
IIS1TXEMPTY,PDIR3FULL,PDIR3RESYN,UQ2CHANERR,
AUDIOTICK,PDIR2RESYN,PDIR2UNOV,PDIR1RESYN,
PDIR1UNOV,UQ1CHANERR,IEC2BUFATTEN,IEC2PARERR,
IEC2VALNOGOOD,IEC2CNEW,IEC1BUFATTEN,UCHANTXNF,
UCHANTXUNDER,UCHANTXEMPTY,PDIR3UNOV,IEC1PARERR,
IEC1VALNOGOOD,IEC1CNEW,EBUTXRESYN,EBUTXUNOV,
IIS2TXRESYN,IIS2TXUNOV,IIS1TXRESYN,IIS1TXUNOV,
GPI0,GPI1,GPI2,GPI3,GPI4,GPI5,GPI6,GPI7,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,SOFTINT0,
SOFTINT1,SOFTINT2,SOFTINT3,UIE,
UIE,CDROMCRCERR,CDROMNOSYNC,CDROMILSYNC,
CDROMNEWBLK,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,
UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE,UIE
};
void system_init(void)
{
}
void set_cpu_frequency (long) __attribute__ ((section (".icode")));
void set_cpu_frequency(long frequency)
{
switch(frequency)
{
case CPUFREQ_MAX:
DCR = (DCR & ~0x000001ff) | 1; /* Refresh timer for bypass
frequency */
PLLCR &= ~1; /* Bypass mode */
PLLCR = 0x11c8600d;
CSCR0 = 0x00000580; /* Flash: 1 wait state */
CSCR1 = 0x00001180; /* LCD: 4 wait states */
while(!(PLLCR & 0x80000000)) {}; /* Wait until the PLL has locked.
This may take up to 10ms! */
DCR = (DCR & ~0x000001ff) | 33; /* Refresh timer */
cpu_frequency = CPUFREQ_MAX;
tick_start(1000/HZ);
IDECONFIG1 = (IDECONFIG1 & ~(7 << 10)) | (5 << 10); /* CS2Pre,Post */
IDECONFIG2 = (IDECONFIG2 & ~0x0000ff00) | (0 << 8); /* CS2wait */
break;
case CPUFREQ_NORMAL:
DCR = (DCR & ~0x000001ff) | 1; /* Refresh timer for bypass
frequency */
PLLCR &= ~1; /* Bypass mode */
PLLCR = 0x10c86801;
CSCR0 = 0x00000180; /* Flash: 0 wait states */
CSCR1 = 0x00000980; /* LCD: 2 wait states */
while(!(PLLCR & 0x80000000)) {}; /* Wait until the PLL has locked.
This may take up to 10ms! */
DCR = (DCR & ~0x000001ff) | 10; /* Refresh timer */
cpu_frequency = CPUFREQ_NORMAL;
tick_start(1000/HZ);
IDECONFIG1 = (IDECONFIG1 & ~(7 << 10)) | (5 << 10); /* CS2Pre,Post */
IDECONFIG2 = (IDECONFIG2 & ~0x0000ff00) | (0 << 8); /* CS2wait */
break;
default:
DCR = (DCR & ~0x000001ff) | 1; /* Refresh timer for bypass
frequency */
PLLCR &= ~1; /* Bypass mode */
CSCR0 = 0x00000180; /* Flash: 0 wait states */
CSCR1 = 0x00000180; /* LCD: 0 wait states */
cpu_frequency = CPU_FREQ;
tick_start(1000/HZ);
IDECONFIG1 = (IDECONFIG1 & ~(7 << 10)) | (1 << 10); /* CS2Pre,Post */
IDECONFIG2 = (IDECONFIG2 & ~0x0000ff00) | (0 << 8); /* CS2wait */
break;
}
}
void cpu_boost(bool on_off)
{
static int counter = 0;
if(on_off)
{
/* Boost the frequency if not already boosted */
if(counter++ == 0)
{
set_cpu_frequency(CPUFREQ_MAX);
}
}
else
{
/* Lower the frequency if the counter reaches 0 */
if(--counter == 0)
{
set_cpu_frequency(CPUFREQ_NORMAL);
}
/* Safety measure */
if(counter < 0)
counter = 0;
}
}
#elif CONFIG_CPU == SH7034
#include "led.h"
#include "system.h"
#include "rolo.h"
#define default_interrupt(name,number) \
extern __attribute__((weak,alias("UIE" #number))) void name (void); void UIE##number (void)
#define reserve_interrupt(number) \
void UIE##number (void)
static const char* const irqname[] = {
"", "", "", "", "IllInstr", "", "IllSltIn","","",
"CPUAdrEr", "DMAAdrEr", "NMI", "UserBrk",
"","","","","","","","","","","","","","","","","","","",
"Trap32","Trap33","Trap34","Trap35","Trap36","Trap37","Trap38","Trap39",
"Trap40","Trap41","Trap42","Trap43","Trap44","Trap45","Trap46","Trap47",
"Trap48","Trap49","Trap50","Trap51","Trap52","Trap53","Trap54","Trap55",
"Trap56","Trap57","Trap58","Trap59","Trap60","Trap61","Trap62","Trap63",
"Irq0","Irq1","Irq2","Irq3","Irq4","Irq5","Irq6","Irq7",
"Dma0","","Dma1","","Dma2","","Dma3","",
"IMIA0","IMIB0","OVI0","", "IMIA1","IMIB1","OVI1","",
"IMIA2","IMIB2","OVI2","", "IMIA3","IMIB3","OVI3","",
"IMIA4","IMIB4","OVI4","",
"Ser0Err","Ser0Rx","Ser0Tx","Ser0TE",
"Ser1Err","Ser1Rx","Ser1Tx","Ser1TE",
"ParityEr","A/D conv","","","Watchdog","DRAMRefr"
};
reserve_interrupt ( 0);
reserve_interrupt ( 1);
reserve_interrupt ( 2);
reserve_interrupt ( 3);
default_interrupt (GII, 4);
reserve_interrupt ( 5);
default_interrupt (ISI, 6);
reserve_interrupt ( 7);
reserve_interrupt ( 8);
default_interrupt (CPUAE, 9);
default_interrupt (DMAAE, 10);
default_interrupt (NMI, 11);
default_interrupt (UB, 12);
reserve_interrupt ( 13);
reserve_interrupt ( 14);
reserve_interrupt ( 15);
reserve_interrupt ( 16); /* TCB #0 */
reserve_interrupt ( 17); /* TCB #1 */
reserve_interrupt ( 18); /* TCB #2 */
reserve_interrupt ( 19); /* TCB #3 */
reserve_interrupt ( 20); /* TCB #4 */
reserve_interrupt ( 21); /* TCB #5 */
reserve_interrupt ( 22); /* TCB #6 */
reserve_interrupt ( 23); /* TCB #7 */
reserve_interrupt ( 24); /* TCB #8 */
reserve_interrupt ( 25); /* TCB #9 */
reserve_interrupt ( 26); /* TCB #10 */
reserve_interrupt ( 27); /* TCB #11 */
reserve_interrupt ( 28); /* TCB #12 */
reserve_interrupt ( 29); /* TCB #13 */
reserve_interrupt ( 30); /* TCB #14 */
reserve_interrupt ( 31); /* TCB #15 */
default_interrupt (TRAPA32, 32);
default_interrupt (TRAPA33, 33);
default_interrupt (TRAPA34, 34);
default_interrupt (TRAPA35, 35);
default_interrupt (TRAPA36, 36);
default_interrupt (TRAPA37, 37);
default_interrupt (TRAPA38, 38);
default_interrupt (TRAPA39, 39);
default_interrupt (TRAPA40, 40);
default_interrupt (TRAPA41, 41);
default_interrupt (TRAPA42, 42);
default_interrupt (TRAPA43, 43);
default_interrupt (TRAPA44, 44);
default_interrupt (TRAPA45, 45);
default_interrupt (TRAPA46, 46);
default_interrupt (TRAPA47, 47);
default_interrupt (TRAPA48, 48);
default_interrupt (TRAPA49, 49);
default_interrupt (TRAPA50, 50);
default_interrupt (TRAPA51, 51);
default_interrupt (TRAPA52, 52);
default_interrupt (TRAPA53, 53);
default_interrupt (TRAPA54, 54);
default_interrupt (TRAPA55, 55);
default_interrupt (TRAPA56, 56);
default_interrupt (TRAPA57, 57);
default_interrupt (TRAPA58, 58);
default_interrupt (TRAPA59, 59);
default_interrupt (TRAPA60, 60);
default_interrupt (TRAPA61, 61);
default_interrupt (TRAPA62, 62);
default_interrupt (TRAPA63, 63);
default_interrupt (IRQ0, 64);
default_interrupt (IRQ1, 65);
default_interrupt (IRQ2, 66);
default_interrupt (IRQ3, 67);
default_interrupt (IRQ4, 68);
default_interrupt (IRQ5, 69);
default_interrupt (IRQ6, 70);
default_interrupt (IRQ7, 71);
default_interrupt (DEI0, 72);
reserve_interrupt ( 73);
default_interrupt (DEI1, 74);
reserve_interrupt ( 75);
default_interrupt (DEI2, 76);
reserve_interrupt ( 77);
default_interrupt (DEI3, 78);
reserve_interrupt ( 79);
default_interrupt (IMIA0, 80);
default_interrupt (IMIB0, 81);
default_interrupt (OVI0, 82);
reserve_interrupt ( 83);
default_interrupt (IMIA1, 84);
default_interrupt (IMIB1, 85);
default_interrupt (OVI1, 86);
reserve_interrupt ( 87);
default_interrupt (IMIA2, 88);
default_interrupt (IMIB2, 89);
default_interrupt (OVI2, 90);
reserve_interrupt ( 91);
default_interrupt (IMIA3, 92);
default_interrupt (IMIB3, 93);
default_interrupt (OVI3, 94);
reserve_interrupt ( 95);
default_interrupt (IMIA4, 96);
default_interrupt (IMIB4, 97);
default_interrupt (OVI4, 98);
reserve_interrupt ( 99);
default_interrupt (REI0, 100);
default_interrupt (RXI0, 101);
default_interrupt (TXI0, 102);
default_interrupt (TEI0, 103);
default_interrupt (REI1, 104);
default_interrupt (RXI1, 105);
default_interrupt (TXI1, 106);
default_interrupt (TEI1, 107);
reserve_interrupt ( 108);
default_interrupt (ADITI, 109);
/* reset vectors are handled in crt0.S */
void (*vbr[]) (void) __attribute__ ((section (".vectors"))) =
{
/*** 4 General Illegal Instruction ***/
GII,
/*** 5 Reserved ***/
UIE5,
/*** 6 Illegal Slot Instruction ***/
ISI,
/*** 7-8 Reserved ***/
UIE7,UIE8,
/*** 9 CPU Address Error ***/
CPUAE,
/*** 10 DMA Address Error ***/
DMAAE,
/*** 11 NMI ***/
NMI,
/*** 12 User Break ***/
UB,
/*** 13-31 Reserved ***/
UIE13,UIE14,UIE15,UIE16,UIE17,UIE18,UIE19,UIE20,UIE21,UIE22,UIE23,UIE24,UIE25,UIE26,UIE27,UIE28,UIE29,UIE30,UIE31,
/*** 32-63 TRAPA #20...#3F ***/
TRAPA32,TRAPA33,TRAPA34,TRAPA35,TRAPA36,TRAPA37,TRAPA38,TRAPA39,TRAPA40,TRAPA41,TRAPA42,TRAPA43,TRAPA44,TRAPA45,TRAPA46,TRAPA47,TRAPA48,TRAPA49,TRAPA50,TRAPA51,TRAPA52,TRAPA53,TRAPA54,TRAPA55,TRAPA56,TRAPA57,TRAPA58,TRAPA59,TRAPA60,TRAPA61,TRAPA62,TRAPA63,
/*** 64-71 IRQ0-7 ***/
IRQ0,IRQ1,IRQ2,IRQ3,IRQ4,IRQ5,IRQ6,IRQ7,
/*** 72 DMAC0 ***/
DEI0,
/*** 73 Reserved ***/
UIE73,
/*** 74 DMAC1 ***/
DEI1,
/*** 75 Reserved ***/
UIE75,
/*** 76 DMAC2 ***/
DEI2,
/*** 77 Reserved ***/
UIE77,
/*** 78 DMAC3 ***/
DEI3,
/*** 79 Reserved ***/
UIE79,
/*** 80-82 ITU0 ***/
IMIA0,IMIB0,OVI0,
/*** 83 Reserved ***/
UIE83,
/*** 84-86 ITU1 ***/
IMIA1,IMIB1,OVI1,
/*** 87 Reserved ***/
UIE87,
/*** 88-90 ITU2 ***/
IMIA2,IMIB2,OVI2,
/*** 91 Reserved ***/
UIE91,
/*** 92-94 ITU3 ***/
IMIA3,IMIB3,OVI3,
/*** 95 Reserved ***/
UIE95,
/*** 96-98 ITU4 ***/
IMIA4,IMIB4,OVI4,
/*** 99 Reserved ***/
UIE99,
/*** 100-103 SCI0 ***/
REI0,RXI0,TXI0,TEI0,
/*** 104-107 SCI1 ***/
REI1,RXI1,TXI1,TEI1,
/*** 108 Parity Control Unit ***/
UIE108,
/*** 109 AD Converter ***/
ADITI
};
void system_reboot (void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
asm volatile ("ldc\t%0,vbr" : : "r"(0));
PACR2 |= 0x4000; /* for coldstart detection */
IPRA = 0;
IPRB = 0;
IPRC = 0;
IPRD = 0;
IPRE = 0;
ICR = 0;
asm volatile ("jmp @%0; mov.l @%1,r15" : :
"r"(*(int*)0),"r"(4));
}
void UIE (unsigned int pc) /* Unexpected Interrupt or Exception */
{
bool state = true;
unsigned int n;
char str[32];
asm volatile ("sts\tpr,%0" : "=r"(n));
/* clear screen */
lcd_clear_display ();
#ifdef HAVE_LCD_BITMAP
Daniel, The following patch makes loadable fonts actually work (finally!). It took me quite a while, but I finally figured out why the sim worked and the target didn't: the SH1 processor won't read longwords from a shortword alignment... I had to rev the .fnt file to version 1.1 (requires remaking *.fnt files) in order to fix this. Please apply the following patch completely. It's diffed against the latest CVS. I've also attached rockbox-fonts-1.1.tar.gz which includes known working *.fnt files, including a courB08 system.fnt, for demonstration. Now the real work can begin... Although the new system.fnt will work fine, if you try going to a really big font (try copying courB14.fnt to system.fnt), then you will find that it comes up and works in tree mode, but will crash the system when going into WPS mode... I'm sure this is because of the low-level lcd_bitmap not clipping properly when given a too-large bitmap, which the characters become. I haven't yet tried to debug the low-level driver. Of course, it all works on the sim... So the apps developers will now have to make sure that all apps screen sizes may vary according to the loaded font. The font height can be gotten through the lcd_getfontsize API. Files patched in fonts-6.patch 1. apps/menu.c - LCD_PROPFONTS error (2nd resubmission on this, please checkin) 2. firmware/font.c - fixes and reformatting. Please check this in as is, my vi editor requires more reformatting changes since I left tabs in the file, these are removed now (2nd resubmission on this, please checkin) 3. firmware/fonts.h - doc change on .fnt file format, .fnt version number incremented. 4. firmware/loadfont.c - fixes to load font properly, typedefs removed. 5. firmware/system.c - lcd_setfont(FONT_SYSFIXED) before issuing error, otherwise font may not exist. 6. tools/bdf2c - fixes for correct output when filename starts with a number, as well as when no DEFAULT_CHAR in .bdf file. (2nd resubmission on this, please checkin) 7. tools/writerbf.c - fixes for bugfixed fontfile format. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2294 a1c6a512-1295-4272-9138-f99709370657
2002-09-16 03:18:49 +00:00
lcd_setfont(FONT_SYSFIXED);
#endif
/* output exception */
n = (n - (unsigned)UIE0 - 4)>>2; /* get exception or interrupt number */
snprintf(str,sizeof(str),"I%02x:%s",n,irqname[n]);
lcd_puts(0,0,str);
snprintf(str,sizeof(str),"at %08x",pc);
lcd_puts(0,1,str);
#ifdef HAVE_LCD_BITMAP
lcd_update ();
#endif
while (1)
{
volatile int i;
led (state);
state = state?false:true;
for (i = 0; i < 240000; ++i);
/* try to restart firmware if ON is pressed */
#if CONFIG_KEYPAD == PLAYER_PAD
if (!(PADR & 0x0020))
rolo_load("/archos.mod");
#elif CONFIG_KEYPAD == RECORDER_PAD
#ifdef HAVE_FMADC
if (!(PCDR & 0x0008))
#else
if (!(PBDR & 0x0100))
#endif
rolo_load("/ajbrec.ajz");
#endif
}
}
asm (
"_UIE0:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE1:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE2:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE3:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE4:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE5:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE6:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE7:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE8:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE9:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE10:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE11:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE12:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE13:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE14:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE15:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE16:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE17:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE18:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE19:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE20:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE21:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE22:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE23:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE24:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE25:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE26:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE27:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE28:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE29:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE30:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE31:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE32:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE33:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE34:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE35:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE36:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE37:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE38:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE39:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE40:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE41:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE42:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE43:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE44:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE45:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE46:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE47:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE48:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE49:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE50:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE51:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE52:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE53:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE54:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE55:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE56:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE57:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE58:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE59:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE60:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE61:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE62:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE63:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE64:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE65:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE66:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE67:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE68:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE69:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE70:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE71:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE72:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE73:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE74:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE75:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE76:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE77:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE78:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE79:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE80:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE81:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE82:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE83:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE84:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE85:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE86:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE87:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE88:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE89:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE90:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE91:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE92:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE93:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE94:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE95:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE96:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE97:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE98:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE99:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE100:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE101:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE102:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE103:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE104:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE105:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE106:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE107:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE108:\tbsr\t_UIE\n\tmov.l\t@r15+,r4\t\n"
"_UIE109:\tbsr\t_UIE\n\tmov.l\t@r15+,r4");
void system_init(void)
{
/* Disable all interrupts */
IPRA = 0;
IPRB = 0;
IPRC = 0;
IPRD = 0;
IPRE = 0;
/* NMI level low, falling edge on all interrupts */
ICR = 0;
/* Enable burst and RAS down mode on DRAM */
DCR |= 0x5000;
/* Activate Warp mode (simultaneous internal and external mem access) */
BCR |= 0x2000;
/* Bus state controller initializations. These are only necessary when
running from flash. */
WCR1 = 0x40FD; /* Long wait states for CS6 (ATA), short for the rest. */
WCR3 = 0x8000; /* WAIT is pulled up, 1 state inserted for CS6 */
}
/* Utilize the user break controller to catch invalid memory accesses. */
int system_memory_guard(int newmode)
{
static const struct {
unsigned long addr;
unsigned long mask;
unsigned short bbr;
} modes[MAXMEMGUARD] = {
/* catch nothing */
{ 0x00000000, 0x00000000, 0x0000 },
/* catch writes to area 02 (flash ROM) */
{ 0x02000000, 0x00FFFFFF, 0x00F8 },
/* catch all accesses to areas 00 (internal ROM) and 01 (free) */
{ 0x00000000, 0x01FFFFFF, 0x00FC }
};
int oldmode = MEMGUARD_NONE;
int i;
/* figure out the old mode from what is in the UBC regs. If the register
values don't match any mode, assume MEMGUARD_NONE */
for (i = MEMGUARD_NONE; i < MAXMEMGUARD; i++)
{
if (BAR == modes[i].addr && BAMR == modes[i].mask &&
BBR == modes[i].bbr)
{
oldmode = i;
break;
}
}
if (newmode == MEMGUARD_KEEP)
newmode = oldmode;
BBR = 0; /* switch off everything first */
/* always set the UBC according to the mode, in case the old settings
didn't match any valid mode */
BAR = modes[newmode].addr;
BAMR = modes[newmode].mask;
BBR = modes[newmode].bbr;
return oldmode;
}
#endif
#if CONFIG_CPU != SH7034
/* this does nothing on non-SH systems */
int system_memory_guard(int newmode)
{
(void)newmode;
return 0;
}
void system_reboot (void)
{
/* dummy */
}
#endif