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Adjustments for player bootloader: (1) Correct HD power pin polarity. (2) Only power on HD if not started by charger insertion. (3) Changed button read to use port C instead of ADC. This allows for 3 buttons as on the other platforms.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5442 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2004-11-19 23:49:21 +00:00
parent 0044a04c22
commit b8b94f171a
2 changed files with 32 additions and 13 deletions
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21
flash/bootloader/bootloader.c
View file

@ -122,9 +122,10 @@ void PlatformInit(void)
#if defined PLATFORM_PLAYER
BRR1 = 0x0019; // 14400 Baud for monitor
if (FW_VERSION > 451) // "new" Player?
{
PBDR &= ~0x10; // set PB4 to 0 to power-up the harddisk early
PACR2 &= 0xFFFC; // GPIO for PA0 (charger detection, input by default)
if (FW_VERSION > 451 && (PADRL & 0x01))
{ // "new" Player and charger not plugged?
PBDR |= 0x10; // set PB4 to 1 to power-up the harddisk early
PBIOR |= 0x10; // make PB4 an output
}
#elif defined PLATFORM_RECORDER
@ -255,7 +256,7 @@ void DecompressStart(tImage* pImage)
pImage->pExecute();
}
#ifdef USE_ADC
int ReadADC(int channel)
{
// after channel 3, the ports wrap and get re-used
@ -267,12 +268,14 @@ int ReadADC(int channel)
return (timeout == 0) ? -1 : *pResult>>6;
}
#endif
// This function is platform-dependent,
// until I figure out how to distinguish at runtime.
int ButtonPressed(void) // return 1,2,3 for F1,F2,F3, 0 if none pressed
{
#ifdef USE_ADC
int value = ReadADC(CHANNEL);
if (value >= F1_LOWER && value <= F1_UPPER) // in range
@ -281,6 +284,16 @@ int ButtonPressed(void) // return 1,2,3 for F1,F2,F3, 0 if none pressed
return 2;
else if (value >= F3_LOWER && value <= F3_UPPER) // in range
return 3;
#else
int value = PCDR;
if (!(value & F1_MASK))
return 1;
else if (!(value & F2_MASK))
return 2;
else if (!(value & F3_MASK))
return 3;
#endif
return 0;
}

24
flash/bootloader/bootloader.h
View file

@ -34,14 +34,12 @@ typedef struct
// resolve platform dependency of F1 button check
#if defined PLATFORM_PLAYER
#define CHANNEL 1
#define F1_LOWER 0 // this is the "Menu" key
#define F1_UPPER 384
#define F2_LOWER 1024 // not present
#define F2_UPPER 1024
#define F3_LOWER 1024
#define F3_UPPER 1024
#define F1_MASK 0x0001 // Player has no F1 button, so we use "-"
#define F2_MASK 0x0008 // Player has no F2 button, so we use "Play"
#define F3_MASK 0x0004 // Player has no F3 button, so we use "+"
#elif defined PLATFORM_RECORDER
#define USE_ADC
#define CHANNEL 4
#define F1_LOWER 250
#define F1_UPPER 499
@ -49,7 +47,9 @@ typedef struct
#define F2_UPPER 699
#define F3_LOWER 900
#define F3_UPPER 1023
#elif defined PLATFORM_FM
#define USE_ADC
#define CHANNEL 4
#define F1_LOWER 150
#define F1_UPPER 384
@ -57,18 +57,22 @@ typedef struct
#define F2_UPPER 544
#define F3_LOWER 700
#define F3_UPPER 1023
#elif defined PLATFORM_ONDIO
#define USE_ADC
#define CHANNEL 4
#define F1_LOWER 0x2EF // Ondio has no F1 button,
#define F1_UPPER 0x3FF // so we use "Right".
#define F1_UPPER 0x3FF // so we use "Left".
#define F2_LOWER 0x19D // Ondio has no F2 button,
#define F2_UPPER 0x245 // so we use "Up".
#define F3_LOWER 0x246 // Ondio has no F3 button,
#define F3_UPPER 0x2EE // so we use "Left".
#define F3_UPPER 0x2EE // so we use "Right".
#else
#error ("No platform given!")
#endif
#define FLASH_BASE 0x02000000 // start of the flash memory
#define FW_VERSION *(unsigned short*)(FLASH_BASE + 0xFE) // firmware version
@ -80,7 +84,9 @@ void PlatformInit(void);
void DramInit(void);
int ucl_nrv2e_decompress_8(const UINT8 *src, UINT8 *dst, UINT32* dst_len);
void DecompressStart(tImage* pImage);
#ifdef USE_ADC
int ReadADC(int channel);
#endif
int ButtonPressed(void);
tImage* GetStartImage(int nPreferred);
// test functions