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USB detection changes. c200/e200: Consider USB to be powered when charger is plugged but detect USB connection by bus reset. When received, disconnect and restart the driver fully enabled. imx31: Fix hack used to make initial connect succeeded-- set PHY type before initial reset. General: Move some target code out of usb-drv-arc.c and implement it in respective usb sources and CPU headers so things stay clean.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19797 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2009-01-19 13:41:25 +00:00
parent cef6399c4c
commit 616c98b38f
18 changed files with 280 additions and 148 deletions
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8
firmware/target/arm/imx31/gigabeat-s/system-target.h
View file

@ -31,6 +31,14 @@
#define CPUFREQ_MAX CPU_FREQ
#endif
/* For USB driver - no accuracy assurance */
static inline void udelay(unsigned int usecs)
{
unsigned int x;
for (x = 0; x < 300*usecs; x++)
asm volatile ("");
}
#if 0
static inline void udelay(unsigned int usecs)
{

35
firmware/target/arm/imx31/gigabeat-s/usb-imx31.c
View file

@ -29,6 +29,7 @@
#include "usb-target.h"
#include "clkctl-imx31.h"
#include "power-imx31.h"
#include "avic-imx31.h"
#include "mc13783.h"
static int usb_status = USB_EXTRACTED;
@ -75,11 +76,7 @@ bool usb_plugged(void)
void usb_init_device(void)
{
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_ON_ALL);
enable_transceiver(true);
/* Module will be turned off later after firmware init */
/* Do one-time inits */
usb_drv_startup();
/* Initially poll */
@ -91,19 +88,37 @@ void usb_init_device(void)
void usb_enable(bool on)
{
/* Module clock should be on since since this could be called with
* OFF initially and writing module registers would hardlock otherwise. */
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_ON_ALL);
enable_transceiver(true);
if (on)
{
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_ON_ALL);
enable_transceiver(true);
usb_core_init();
}
else
{
/* Module clock should be on since this could be called first */
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_ON_ALL);
enable_transceiver(true);
usb_core_exit();
enable_transceiver(false);
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_OFF);
}
}
void usb_attach(void)
{
usb_enable(true);
}
static void __attribute__((interrupt("IRQ"))) USB_OTG_HANDLER(void)
{
usb_drv_int(); /* Call driver handler */
}
void usb_drv_int_enable(bool enable)
{
if (enable)
avic_enable_int(USB_OTG, IRQ, 7, USB_OTG_HANDLER);
else
avic_disable_int(USB_OTG);
}