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Gigabeat Cradle USB Support

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12284 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Karl Kurbjun 2007-02-12 07:05:15 +00:00
parent ce584280ab
commit b0810520be
1 changed files with 11 additions and 11 deletions
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22
firmware/target/arm/gigabeat/meg-fx/usb-meg-fx.c
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@ -31,21 +31,21 @@
#define USB_VPLUS_PWR_ASSERT GPBDAT |= (1 << 6) #define USB_VPLUS_PWR_ASSERT GPBDAT |= (1 << 6)
#define USB_VPLUS_PWR_DEASSERT GPBDAT &= ~(1 << 6) #define USB_VPLUS_PWR_DEASSERT GPBDAT &= ~(1 << 6)
#define USB_IS_PRESENT (!(GPFDAT & 1)) #define USB_UNIT_IS_PRESENT !(GPFDAT & 0x01)
#define USB_CRADLE_IS_PRESENT ((GPFDAT &0x02)&&!(GPGDAT&0x00004000))
#define USB_CRADLE_BUS_ENABLE GPHDAT |= (1 << 8)
#define USB_CRADLE_BUS_DISABLE GPHDAT &= ~(1 << 8)
/* The usb detect is one pin to the cpu active low */ /* The usb detect is one pin to the cpu active low */
inline bool usb_detect(void) inline bool usb_detect(void)
{ {
return USB_IS_PRESENT; return USB_UNIT_IS_PRESENT | USB_CRADLE_IS_PRESENT;
} }
void usb_init_device(void) void usb_init_device(void)
{ {
USB_VPLUS_PWR_ASSERT; USB_VPLUS_PWR_ASSERT;
sleep(HZ/20); sleep(HZ/20);
/* Reset the usb port */ /* Reset the usb port */
@ -70,22 +70,22 @@ void usb_init_device(void)
sleep(HZ/25); sleep(HZ/25);
} }
void usb_enable(bool on) void usb_enable(bool on)
{ {
if (on) if (on)
{ {
/* make sure ata_en is high */ /* make sure ata_en is high */
USB_VPLUS_PWR_ASSERT; USB_VPLUS_PWR_ASSERT;
USB_ATA_ENABLE; USB_ATA_ENABLE;
if(USB_CRADLE_IS_PRESENT) USB_CRADLE_BUS_ENABLE;
} }
else else
{ {
/* make sure ata_en is low */ /* make sure ata_en is low */
if(USB_CRADLE_IS_PRESENT) USB_CRADLE_BUS_DISABLE;
USB_ATA_DISABLE; USB_ATA_DISABLE;
USB_VPLUS_PWR_DEASSERT; USB_VPLUS_PWR_DEASSERT;
} }
sleep(HZ/20); // > 50ms for detecting the enable state change sleep(HZ/20); // > 50ms for detecting the enable state change
} }