#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/usb/ch9.h>
-#include <linux/usb_gadget.h>
+#include <linux/usb/gadget.h>
#include <linux/usb.h>
#include <linux/usb/otg.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <asm/irq.h>
-#include <asm/arch/usb.h>
+#include <mach/usb.h>
#include "cbus.h"
#include "tahvo.h"
#define USBR_NSUSPEND (1 << 1)
#define USBR_SEMODE (1 << 0)
-/* bits in OTG_CTRL_REG */
+/* bits in OTG_CTRL */
/* Bits that are controlled by OMAP OTG and are read-only */
#define OTG_CTRL_OMAP_MASK (OTG_PULLDOWN|OTG_PULLUP|OTG_DRV_VBUS|\
struct tahvo_usb *tu = (struct tahvo_usb *) otg_dev->dev.driver_data;
u16 otg_irq;
- otg_irq = OTG_IRQ_SRC_REG;
+ otg_irq = omap_readw(OTG_IRQ_SRC);
if (otg_irq & OPRT_CHG) {
- OTG_IRQ_SRC_REG = OPRT_CHG;
+ omap_writew(OPRT_CHG, OTG_IRQ_SRC);
} else if (otg_irq & B_SRP_TMROUT) {
- OTG_IRQ_SRC_REG = B_SRP_TMROUT;
+ omap_writew(B_SRP_TMROUT, OTG_IRQ_SRC);
} else if (otg_irq & B_HNP_FAIL) {
- OTG_IRQ_SRC_REG = B_HNP_FAIL;
+ omap_writew(B_HNP_FAIL, OTG_IRQ_SRC);
} else if (otg_irq & A_SRP_DETECT) {
- OTG_IRQ_SRC_REG = A_SRP_DETECT;
+ omap_writew(A_SRP_DETECT, OTG_IRQ_SRC);
} else if (otg_irq & A_REQ_TMROUT) {
- OTG_IRQ_SRC_REG = A_REQ_TMROUT;
+ omap_writew(A_REQ_TMROUT, OTG_IRQ_SRC);
} else if (otg_irq & A_VBUS_ERR) {
- OTG_IRQ_SRC_REG = A_VBUS_ERR;
+ omap_writew(A_VBUS_ERR, OTG_IRQ_SRC);
} else if (otg_irq & DRIVER_SWITCH) {
- if ((!(OTG_CTRL_REG & OTG_DRIVER_SEL)) &&
+ if ((!(omap_readl(OTG_CTRL) & OTG_DRIVER_SEL)) &&
tu->otg.host && tu->otg.state == OTG_STATE_A_HOST) {
/* role is host */
usb_bus_start_enum(tu->otg.host,
tu->otg.host->otg_port);
}
- OTG_IRQ_SRC_REG = DRIVER_SWITCH;
+ omap_writew(DRIVER_SWITCH, OTG_IRQ_SRC);
} else
return IRQ_NONE;
static int omap_otg_init(void)
{
+ u32 l;
#ifdef CONFIG_USB_OTG
if (!tahvo_otg_dev) {
return -ENODEV;
}
#endif
- OTG_SYSCON_1_REG &= ~OTG_IDLE_EN;
+
+ l = omap_readl(OTG_SYSCON_1);
+ l &= ~OTG_IDLE_EN;
+ omap_writel(l, OTG_SYSCON_1);
udelay(100);
/* some of these values are board-specific... */
- OTG_SYSCON_2_REG |= OTG_EN
+ l = omap_readl(OTG_SYSCON_2);
+ l |= OTG_EN
/* for B-device: */
| SRP_GPDATA /* 9msec Bdev D+ pulse */
| SRP_GPDVBUS /* discharge after VBUS pulse */
| (0 << 20) /* 200ms nominal A_WAIT_VRISE timer */
| SRP_DPW /* detect 167+ns SRP pulses */
| SRP_DATA | SRP_VBUS; /* accept both kinds of SRP pulse */
+ omap_writel(l, OTG_SYSCON_2);
- OTG_IRQ_EN_REG = DRIVER_SWITCH | OPRT_CHG
+ omap_writew(DRIVER_SWITCH | OPRT_CHG
| B_SRP_TMROUT | B_HNP_FAIL
- | A_VBUS_ERR | A_SRP_DETECT | A_REQ_TMROUT;
- OTG_SYSCON_2_REG |= OTG_EN;
+ | A_VBUS_ERR | A_SRP_DETECT | A_REQ_TMROUT,
+ OTG_IRQ_EN);
+ l = omap_readl(OTG_SYSCON_2);
+ l |= OTG_EN;
+ omap_writel(l, OTG_SYSCON_2);
return 0;
}
reg = tahvo_read_reg(TAHVO_REG_IDSR);
if (reg & 0x01) {
+ u32 l;
+
vbus_active = 1;
switch (tu->otg.state) {
case OTG_STATE_B_IDLE:
usb_gadget_vbus_connect(tu->otg.gadget);
/* Set B-session valid and not B-sessio ended to indicate
* Vbus to be ok. */
- OTG_CTRL_REG = (OTG_CTRL_REG & ~OTG_BSESSEND) | OTG_BSESSVLD;
+ l = omap_readl(OTG_CTRL);
+ l &= ~OTG_BSESSEND;
+ l |= OTG_BSESSVLD;
+ omap_writel(l, OTG_CTRL);
tu->otg.state = OTG_STATE_B_PERIPHERAL;
break;
* also mark the A-session is always valid */
omap_otg_init();
- l = OTG_CTRL_REG;
- l &= ~(OTG_CTRL_XCVR_MASK|OTG_CTRL_SYS_MASK);
+ l = omap_readl(OTG_CTRL);
+ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK);
l |= OTG_ASESSVLD;
- OTG_CTRL_REG = l;
+ omap_writel(l, OTG_CTRL);
/* Power up the transceiver in USB host mode */
tahvo_write_reg(TAHVO_REG_USBR, USBR_REGOUT | USBR_NSUSPEND |
static void tahvo_usb_become_peripheral(struct tahvo_usb *tu)
{
+ u32 l;
+
/* Clear system and transceiver controlled bits
* and enable ID to mark peripheral mode and
* BSESSEND to mark no Vbus */
omap_otg_init();
- OTG_CTRL_REG = (OTG_CTRL_REG & ~(OTG_CTRL_XCVR_MASK|OTG_CTRL_SYS_MASK|OTG_BSESSVLD))
- | OTG_ID | OTG_BSESSEND;
+ l = omap_readl(OTG_CTRL);
+ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK | OTG_BSESSVLD);
+ l |= OTG_ID | OTG_BSESSEND;
+ omap_writel(l, OTG_CTRL);
/* Power up transceiver and set it in USB perhiperal mode */
tahvo_write_reg(TAHVO_REG_USBR, USBR_SLAVE_CONTROL | USBR_REGOUT | USBR_NSUSPEND | USBR_SLAVE_SW);
static void tahvo_usb_stop_peripheral(struct tahvo_usb *tu)
{
- OTG_CTRL_REG = (OTG_CTRL_REG & ~OTG_BSESSVLD) | OTG_BSESSEND;
+ u32 l;
+
+ l = omap_readl(OTG_CTRL);
+ l &= ~OTG_BSESSVLD;
+ l |= OTG_BSESSEND;
+ omap_writel(l, OTG_CTRL);
+
if (tu->otg.gadget)
usb_gadget_vbus_disconnect(tu->otg.gadget);
tu->otg.state = OTG_STATE_B_IDLE;
id = OTG_ID;
else
id = 0;
- l = OTG_CTRL_REG;
+ l = omap_readl(OTG_CTRL);
l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK | OTG_BSESSVLD);
l |= id | OTG_BSESSEND;
- OTG_CTRL_REG = l;
- OTG_IRQ_EN_REG = 0;
+ omap_writel(l, OTG_CTRL);
+ omap_writew(0, OTG_IRQ_EN);
- OTG_SYSCON_2_REG &= ~OTG_EN;
+ l = omap_readl(OTG_SYSCON_2);
+ l &= ~OTG_EN;
+ omap_writel(l, OTG_SYSCON_2);
- OTG_SYSCON_1_REG |= OTG_IDLE_EN;
+ l = omap_readl(OTG_SYSCON_1);
+ l |= OTG_IDLE_EN;
+ omap_writel(l, OTG_SYSCON_1);
/* Power off transceiver */
tahvo_write_reg(TAHVO_REG_USBR, 0);
if (!dev || tu->otg.state != OTG_STATE_B_IDLE)
return -ENODEV;
- otg_ctrl = OTG_CTRL_REG;
+ otg_ctrl = omap_readl(OTG_CTRL);
if (!(otg_ctrl & OTG_BSESSEND))
return -EINVAL;
otg_ctrl |= OTG_B_BUSREQ;
otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_SYS_MASK;
- OTG_CTRL_REG = otg_ctrl;
+ omap_writel(otg_ctrl, OTG_CTRL);
tu->otg.state = OTG_STATE_B_SRP_INIT;
return 0;
static int tahvo_usb_set_host(struct otg_transceiver *otg, struct usb_bus *host)
{
struct tahvo_usb *tu = container_of(otg, struct tahvo_usb, otg);
+ u32 l;
dev_dbg(&tu->pt_dev->dev, "set_host %p\n", host);
return 0;
}
- OTG_SYSCON_1_REG &= ~(OTG_IDLE_EN | HST_IDLE_EN | DEV_IDLE_EN);
+ l = omap_readl(OTG_SYSCON_1);
+ l &= ~(OTG_IDLE_EN | HST_IDLE_EN | DEV_IDLE_EN);
+ omap_writel(l, OTG_SYSCON_1);
if (TAHVO_MODE(tu) == TAHVO_MODE_HOST) {
tu->otg.host = NULL;
git.openpandora.org / pandora-kernel.git / blobdiff