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-rw-r--r--drivers/usb/gadget/pxa27x_udc.c183
1 files changed, 100 insertions, 83 deletions
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index e6ccd49..0d3a988 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -26,11 +26,13 @@
#include <common.h>
#include <config.h>
#include <asm/byteorder.h>
-#include <usbdcore.h>
-#include <usbdcore_ep0.h>
+#include <usbdevice.h>
#include <asm/arch/hardware.h>
+#include <asm/io.h>
#include <usb/pxa27x_udc.h>
+#include "ep0.h"
+
/* number of endpoints on this UDC */
#define UDC_MAX_ENDPOINTS 24
@@ -50,7 +52,7 @@ static void udc_dump_buffer(char *name, u8 *buf, int len)
static inline void udc_ack_int_UDCCR(int mask)
{
- USIR1 = mask | USIR1;
+ writel(readl(USIR1) | mask, USIR1);
}
/*
@@ -68,9 +70,7 @@ static int udc_write_urb(struct usb_endpoint_instance *endpoint)
{
struct urb *urb = endpoint->tx_urb;
int ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;
- u32 *addr32 = (u32 *) &UDCDN(ep_num);
u32 *data32 = (u32 *) urb->buffer;
- u8 *addr8 = (u8 *) &UDCDN(ep_num);
u8 *data8 = (u8 *) urb->buffer;
unsigned int i, n, w, b, is_short;
int timeout = 2000; /* 2ms */
@@ -98,26 +98,28 @@ static int udc_write_urb(struct usb_endpoint_instance *endpoint)
/* Prepare for data send */
if (ep_num)
- UDCCSN(ep_num) = UDCCSR_PC;
+ writel(UDCCSR_PC ,UDCCSN(ep_num));
for (i = 0; i < w; i++)
- *addr32 = data32[endpoint->sent/4 + i];
+ writel(data32[endpoint->sent / 4 + i], UDCDN(ep_num));
+
for (i = 0; i < b; i++)
- *addr8 = data8[endpoint->sent + w*4 + i];
+ writeb(data8[endpoint->sent + w * 4 + i], UDCDN(ep_num));
/* Set "Packet Complete" if less data then tx_packetSize */
if (is_short)
- UDCCSN(ep_num) = ep_num ? UDCCSR_SP : UDCCSR0_IPR;
+ writel(ep_num ? UDCCSR_SP : UDCCSR0_IPR, UDCCSN(ep_num));
/* Wait for data sent */
- while (!(UDCCSN(ep_num) & (ep_num ? UDCCSR_PC : UDCCSR0_IPR))) {
- if (ep_num) {
+ if (ep_num) {
+ while (!(readl(UDCCSN(ep_num)) & UDCCSR_PC)) {
if (timeout-- == 0)
return -1;
else
udelay(1);
- };
+ }
}
+
endpoint->last = n;
if (ep_num) {
@@ -127,7 +129,7 @@ static int udc_write_urb(struct usb_endpoint_instance *endpoint)
endpoint->last -= n;
}
- if ((endpoint->tx_urb->actual_length - endpoint->sent) <= 0) {
+ if (endpoint->sent >= urb->actual_length) {
urb->actual_length = 0;
endpoint->sent = 0;
endpoint->last = 0;
@@ -148,7 +150,6 @@ static int udc_read_urb(struct usb_endpoint_instance *endpoint)
{
struct urb *urb = endpoint->rcv_urb;
int ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;
- u32 *addr32 = (u32 *) &UDCDN(ep_num);
u32 *data32 = (u32 *) urb->buffer;
unsigned int i, n, is_short ;
@@ -160,15 +161,15 @@ static int udc_read_urb(struct usb_endpoint_instance *endpoint)
endpoint->rcv_packetSize);
#endif
- if (UDCCSN(ep_num) & UDCCSR_BNE)
- n = UDCBCN(ep_num) & 0x3ff;
+ if (readl(UDCCSN(ep_num)) & UDCCSR_BNE)
+ n = readl(UDCBCN(ep_num)) & 0x3ff;
else /* zlp */
n = 0;
is_short = n != endpoint->rcv_packetSize;
usbdbg("n %d%s", n, is_short ? "-s" : "");
for (i = 0; i < n; i += 4)
- data32[urb->actual_length/4 + i/4] = *addr32;
+ data32[urb->actual_length / 4 + i / 4] = readl(UDCDN(ep_num));
udc_dump_buffer("urb read", (u8 *) data32, urb->actual_length + n);
usbd_rcv_complete(endpoint, n, 0);
@@ -178,27 +179,35 @@ static int udc_read_urb(struct usb_endpoint_instance *endpoint)
static int udc_read_urb_ep0(void)
{
- u32 *addr32 = (u32 *) &UDCDN(0);
u32 *data32 = (u32 *) ep0_urb->buffer;
- u8 *addr8 = (u8 *) &UDCDN(0);
u8 *data8 = (u8 *) ep0_urb->buffer;
unsigned int i, n, w, b;
- n = UDCBCR0;
+ usbdbg("read urb on ep 0");
+#if defined(USBDDBG) && defined(USBDPARANOIA)
+ usbdbg("urb: buf %p, buf_len %d, actual_len %d",
+ ep0_urb->buffer, ep0_urb->buffer_length, ep0_urb->actual_length);
+#endif
+
+ n = readl(UDCBCR0);
w = n / 4;
b = n % 4;
for (i = 0; i < w; i++) {
- data32[ep0_urb->actual_length/4 + i] = *addr32;
- ep0_urb->actual_length += 4;
+ data32[ep0_urb->actual_length / 4 + i] = readl(UDCDN(0));
+// ep0_urb->actual_length += 4;
}
for (i = 0; i < b; i++) {
- data8[ep0_urb->actual_length + w*4 + i] = *addr8;
- ep0_urb->actual_length++;
+ data8[ep0_urb->actual_length + w * 4 + i] = readb(UDCDN(0));
+// ep0_urb->actual_length++;
}
- UDCCSR0 = UDCCSR0_OPC | UDCCSR0_IPR;
+ ep0_urb->actual_length += n;
+
+ udc_dump_buffer("urb read", (u8 *) data32, ep0_urb->actual_length);
+
+ writel(UDCCSR0_OPC | UDCCSR0_IPR, UDCCSR0);
if (ep0_urb->actual_length == ep0_urb->device_request.wLength)
return 1;
@@ -207,7 +216,7 @@ static int udc_read_urb_ep0(void)
static void udc_handle_ep0(struct usb_endpoint_instance *endpoint)
{
- u32 udccsr0 = UDCCSR0;
+ u32 udccsr0 = readl(UDCCSR0);
u32 *data = (u32 *) &ep0_urb->device_request;
int i;
@@ -216,7 +225,7 @@ static void udc_handle_ep0(struct usb_endpoint_instance *endpoint)
/* Clear stall status */
if (udccsr0 & UDCCSR0_SST) {
usberr("clear stall status");
- UDCCSR0 = UDCCSR0_SST;
+ writel(UDCCSR0_SST, UDCCSR0);
ep0state = EP0_IDLE;
}
@@ -227,8 +236,7 @@ static void udc_handle_ep0(struct usb_endpoint_instance *endpoint)
switch (ep0state) {
case EP0_IDLE:
-
- udccsr0 = UDCCSR0;
+ udccsr0 = readl(UDCCSR0);
/* Start control request? */
if ((udccsr0 & (UDCCSR0_OPC | UDCCSR0_SA | UDCCSR0_RNE))
== (UDCCSR0_OPC | UDCCSR0_SA | UDCCSR0_RNE)) {
@@ -238,15 +246,15 @@ static void udc_handle_ep0(struct usb_endpoint_instance *endpoint)
*/
usbdbg("try reading SETUP packet");
for (i = 0; i < 2; i++) {
- if ((UDCCSR0 & UDCCSR0_RNE) == 0) {
+ if ((readl(UDCCSR0) & UDCCSR0_RNE) == 0) {
usberr("setup packet too short:%d", i);
goto stall;
}
- data[i] = UDCDR0;
+ data[i] = readl(UDCDR0);
}
- UDCCSR0 |= (UDCCSR0_OPC | UDCCSR0_SA);
- if ((UDCCSR0 & UDCCSR0_RNE) != 0) {
+ writel(readl(UDCCSR0) | UDCCSR0_OPC | UDCCSR0_SA, UDCCSR0);
+ if ((readl(UDCCSR0) & UDCCSR0_RNE) != 0) {
usberr("setup packet too long");
goto stall;
}
@@ -261,7 +269,7 @@ static void udc_handle_ep0(struct usb_endpoint_instance *endpoint)
(u8 *)data, 8);
goto stall;
}
- UDCCSR0 = UDCCSR0_IPR;
+ writel(UDCCSR0_IPR, UDCCSR0);
ep0state = EP0_IDLE;
} else {
/* Check direction */
@@ -274,7 +282,7 @@ static void udc_handle_ep0(struct usb_endpoint_instance *endpoint)
ep0_urb->buffer_length =
sizeof(ep0_urb->buffer_data);
ep0_urb->actual_length = 0;
- UDCCSR0 = UDCCSR0_IPR;
+ writel(UDCCSR0_IPR, UDCCSR0);
} else {
/* The ep0_recv_setup function has
* already placed our response packet
@@ -289,9 +297,9 @@ stall:
, (u8 *) data, 8);
ep0state = EP0_IDLE;
- UDCCSR0 = UDCCSR0_SA |
+ writel(UDCCSR0_SA |
UDCCSR0_OPC | UDCCSR0_FST |
- UDCCS0_FTF;
+ UDCCS0_FTF, UDCCSR0);
return;
}
@@ -317,7 +325,7 @@ stall:
* - IPR cleared
* - OPC got set, without SA (likely status stage)
*/
- UDCCSR0 = udccsr0 & (UDCCSR0_SA | UDCCSR0_OPC);
+ writel(udccsr0 & (UDCCSR0_SA | UDCCSR0_OPC), UDCCSR0);
}
break;
@@ -351,7 +359,7 @@ read_complete:
case EP0_IN_DATA:
/* GET_DESCRIPTOR etc */
if (udccsr0 & UDCCSR0_OPC) {
- UDCCSR0 = UDCCSR0_OPC | UDCCSR0_FTF;
+ writel(UDCCSR0_OPC | UDCCSR0_FTF, UDCCSR0);
usberr("ep0in premature status");
ep0state = EP0_IDLE;
} else {
@@ -364,14 +372,14 @@ read_complete:
break;
case EP0_XFER_COMPLETE:
- UDCCSR0 = UDCCSR0_IPR;
+ writel(UDCCSR0_IPR, UDCCSR0);
ep0state = EP0_IDLE;
break;
default:
usbdbg("Default\n");
}
- USIR0 = USIR0_IR0;
+ writel(USIR0_IR0, USIR0);
}
static void udc_handle_ep(struct usb_endpoint_instance *endpoint)
@@ -380,33 +388,33 @@ static void udc_handle_ep(struct usb_endpoint_instance *endpoint)
int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
int ep_isout = (ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT;
- u32 flags = UDCCSN(ep_num) & (UDCCSR_SST | UDCCSR_TRN);
+ u32 flags = readl(UDCCSN(ep_num)) & (UDCCSR_SST | UDCCSR_TRN);
if (flags)
- UDCCSN(ep_num) = flags;
+ writel(flags, UDCCSN(ep_num));
if (ep_isout)
udc_read_urb(endpoint);
else
udc_write_urb(endpoint);
- UDCCSN(ep_num) = UDCCSR_PC;
+ writel(UDCCSR_PC, UDCCSN(ep_num));
}
static void udc_state_changed(void)
{
int config, interface, alternate;
- UDCCR |= UDCCR_SMAC;
+ writel(readl(UDCCR) | UDCCR_SMAC, UDCCR);
- config = (UDCCR & UDCCR_ACN) >> UDCCR_ACN_S;
- interface = (UDCCR & UDCCR_AIN) >> UDCCR_AIN_S;
- alternate = (UDCCR & UDCCR_AAISN) >> UDCCR_AAISN_S;
+ config = (readl(UDCCR) & UDCCR_ACN) >> UDCCR_ACN_S;
+ interface = (readl(UDCCR) & UDCCR_AIN) >> UDCCR_AIN_S;
+ alternate = (readl(UDCCR) & UDCCR_AAISN) >> UDCCR_AAISN_S;
usbdbg("New UDC settings are: conf %d - inter %d - alter %d",
config, interface, alternate);
usbd_device_event_irq(udc_device, DEVICE_CONFIGURED, 0);
- UDCISR1 = UDCISR1_IRCC;
+ writel(UDCISR1_IRCC, UDCISR1);
}
void udc_irq(void)
@@ -419,7 +427,7 @@ void udc_irq(void)
do {
handled = 0;
/* Suspend Interrupt Request */
- if (USIR1 & UDCCR_SUSIR) {
+ if (readl(USIR1) & UDCCR_SUSIR) {
usbdbg("Suspend\n");
udc_ack_int_UDCCR(UDCCR_SUSIR);
handled = 1;
@@ -427,35 +435,35 @@ void udc_irq(void)
}
/* Resume Interrupt Request */
- if (USIR1 & UDCCR_RESIR) {
+ if (readl(USIR1) & UDCCR_RESIR) {
udc_ack_int_UDCCR(UDCCR_RESIR);
handled = 1;
usbdbg("USB resume\n");
}
- if (USIR1 & (1<<31)) {
+ if (readl(USIR1) & (1<<31)) {
handled = 1;
udc_state_changed();
}
/* Reset Interrupt Request */
- if (USIR1 & UDCCR_RSTIR) {
+ if (readl(USIR1) & UDCCR_RSTIR) {
udc_ack_int_UDCCR(UDCCR_RSTIR);
handled = 1;
usbdbg("Reset\n");
usbd_device_event_irq(udc_device, DEVICE_RESET, 0);
} else {
- if (USIR0)
- usbdbg("UISR0: %x \n", USIR0);
+ if (readl(USIR0))
+ usbdbg("UISR0: %x \n", readl(USIR0));
- if (USIR0 & 0x2)
- USIR0 = 0x2;
+ if (readl(USIR0) & 0x2)
+ writel(0x2, USIR0);
/* Control traffic */
- if (USIR0 & USIR0_IR0) {
+ if (readl(USIR0) & USIR0_IR0) {
handled = 1;
+ writel(USIR0_IR0, USIR0);
udc_handle_ep0(udc_device->bus->endpoint_array);
- USIR0 = USIR0_IR0;
}
endpoint = udc_device->bus->endpoint_array;
@@ -464,11 +472,11 @@ void udc_irq(void)
USB_ENDPOINT_NUMBER_MASK;
if (!ep_num)
continue;
- udcisr0 = UDCISR0;
+ udcisr0 = readl(UDCISR0);
if (udcisr0 &
UDCISR_INT(ep_num, UDC_INT_PACKETCMP)) {
- UDCISR0 = UDCISR_INT(ep_num,
- UDC_INT_PACKETCMP);
+ writel(UDCISR_INT(ep_num, UDC_INT_PACKETCMP),
+ UDCISR0);
udc_handle_ep(&endpoint[i]);
}
}
@@ -485,21 +493,21 @@ void udc_irq(void)
static inline void udc_set_mask_UDCCR(int mask)
{
- UDCCR = (UDCCR & UDCCR_MASK_BITS) | (mask & UDCCR_MASK_BITS);
+ writel((readl(UDCCR) & UDCCR_MASK_BITS) | (mask & UDCCR_MASK_BITS), UDCCR);
}
static inline void udc_clear_mask_UDCCR(int mask)
{
- UDCCR = (UDCCR & UDCCR_MASK_BITS) & ~(mask & UDCCR_MASK_BITS);
+ writel((readl(UDCCR) & UDCCR_MASK_BITS) & ~(mask & UDCCR_MASK_BITS), UDCCR);
}
static void pio_irq_enable(int ep_num)
{
if (ep_num < 16)
- UDCICR0 |= 3 << (ep_num * 2);
+ writel(readl(UDCICR0) | 3 << (ep_num * 2), UDCICR0);
else {
ep_num -= 16;
- UDCICR1 |= 3 << (ep_num * 2);
+ writel(readl(UDCICR1) | 3 << (ep_num * 2), UDCICR1);
}
}
@@ -589,22 +597,26 @@ void udc_setup_ep(struct usb_device_instance *device, unsigned int id,
tmp |= (ep_size << UDCCONR_MPS_S) & UDCCONR_MPS;
tmp |= UDCCONR_EE;
- UDCCN(ep_num) = tmp;
+ writel(tmp, UDCCN(ep_num));
- usbdbg("UDCCR%c = %x", 'A' + ep_num-1, UDCCN(ep_num));
- usbdbg("UDCCSR%c = %x", 'A' + ep_num-1, UDCCSN(ep_num));
+ //usbdbg
+ usbdbg("UDCCR%c = %x", 'A' + ep_num-1, readl(UDCCN(ep_num)));
+ usbdbg("UDCCSR%c = %x", 'A' + ep_num-1, readl(UDCCSN(ep_num)));
}
-#define CONFIG_USB_DEV_PULLUP_GPIO 87
-
/* Connect the USB device to the bus */
void udc_connect(void)
{
usbdbg("UDC connect");
+#ifdef CONFIG_USB_DEV_PULLUP_GPIO
/* Turn on the USB connection by enabling the pullup resistor */
set_GPIO_mode(CONFIG_USB_DEV_PULLUP_GPIO | GPIO_OUT);
- GPSR(CONFIG_USB_DEV_PULLUP_GPIO) = GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO);
+ writel(GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), GPSR(CONFIG_USB_DEV_PULLUP_GPIO));
+#else
+ /* Host port 2 transceiver D+ pull up enable */
+ writel(readl(UP2OCR) | UP2OCR_DPPUE, UP2OCR);
+#endif
}
/* Disconnect the USB device to the bus */
@@ -612,8 +624,13 @@ void udc_disconnect(void)
{
usbdbg("UDC disconnect");
+#ifdef CONFIG_USB_DEV_PULLUP_GPIO
/* Turn off the USB connection by disabling the pullup resistor */
- GPCR(CONFIG_USB_DEV_PULLUP_GPIO) = GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO);
+ writel(GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), GPCR(CONFIG_USB_DEV_PULLUP_GPIO));
+#else
+ /* Host port 2 transceiver D+ pull up disable */
+ writel(readl(UP2OCR) & ~UP2OCR_DPPUE, UP2OCR);
+#endif
}
/* Switch on the UDC */
@@ -621,15 +638,14 @@ void udc_enable(struct usb_device_instance *device)
{
ep0state = EP0_IDLE;
- CKEN |= CKEN11_USB;
/* enable endpoint 0, A, B's Packet Complete Interrupt. */
- UDCICR0 = 0x0000003f;
- UDCICR1 = 0xa8000000;
+ writel(0xffffffff, UDCICR0);
+ writel(0xa8000000, UDCICR1);
/* clear the interrupt status/control registers */
- UDCISR0 = 0xffffffff;
- UDCISR1 = 0xffffffff;
+ writel(0xffffffff, UDCISR0);
+ writel(0xffffffff, UDCISR1);
/* set UDC-enable */
udc_set_mask_UDCCR(UDCCR_UDE);
@@ -652,7 +668,7 @@ void udc_disable(void)
udc_clear_mask_UDCCR(UDCCR_UDE);
/* Disable clock for USB device */
- CKEN &= ~CKEN11_USB;
+ writel(readl(CKEN) & ~CKEN11_USB, CKEN);
/* Free ep0 URB */
if (ep0_urb) {
@@ -689,14 +705,15 @@ int udc_init(void)
udc_device = NULL;
usbdbg("PXA27x usbd start");
+ /* Enable clock for USB device */
+ writel(readl(CKEN) | CKEN11_USB, CKEN);
+
/* Disable the UDC */
udc_clear_mask_UDCCR(UDCCR_UDE);
- /* Disable clock for USB device */
- CKEN &= ~CKEN11_USB;
-
/* Disable IRQs: we don't use them */
- UDCICR0 = UDCICR1 = 0;
+ writel(0, UDCICR0);
+ writel(0, UDCICR1);
return 0;
}
generated by cgit v1.1 at 2024-10-30 13:51:25 +0000