summaryrefslogtreecommitdiff
path: root/drivers/usb
diff options
context:
space:
mode:
authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-08-06 12:17:49 +0900
committerTom Rini <trini@ti.com>2014-08-21 12:01:12 -0400
commit62d636aa2ac2171fd8105cca0b9ea96117b66547 (patch)
tree0ebf51b2b5023cdd88c87b010368d9dc20b39ccd /drivers/usb
parent9b586031db728929282b4702703f95a1cacbdb98 (diff)
downloadu-boot-imx-62d636aa2ac2171fd8105cca0b9ea96117b66547.zip
u-boot-imx-62d636aa2ac2171fd8105cca0b9ea96117b66547.tar.gz
u-boot-imx-62d636aa2ac2171fd8105cca0b9ea96117b66547.tar.bz2
omap: remove omap5912osk board support
Emails to the board maintainer "Rishi Bhattacharya <rishi@ti.com>" have been bouncing. Tom suggested to remove this board. Remove also omap1510_udc.c because this is the last board to enable it. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Suggested-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/Makefile1
-rw-r--r--drivers/usb/gadget/omap1510_udc.c1506
2 files changed, 0 insertions, 1507 deletions
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 4eea907..2efd5a4 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -31,7 +31,6 @@ ifdef CONFIG_USB_DEVICE
obj-y += core.o
obj-y += ep0.o
obj-$(CONFIG_DW_UDC) += designware_udc.o
-obj-$(CONFIG_OMAP1610) += omap1510_udc.o
obj-$(CONFIG_MPC885_FAMILY) += mpc8xx_udc.o
obj-$(CONFIG_CPU_PXA27X) += pxa27x_udc.o
endif
diff --git a/drivers/usb/gadget/omap1510_udc.c b/drivers/usb/gadget/omap1510_udc.c
deleted file mode 100644
index 959df8c..0000000
--- a/drivers/usb/gadget/omap1510_udc.c
+++ /dev/null
@@ -1,1506 +0,0 @@
-/*
- * (C) Copyright 2003
- * Gerry Hamel, geh@ti.com, Texas Instruments
- *
- * Based on
- * linux/drivers/usb/device/bi/omap.c
- * TI OMAP1510 USB bus interface driver
- *
- * Author: MontaVista Software, Inc.
- * source@mvista.com
- * (C) Copyright 2002
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <usbdevice.h>
-#include <usb/omap1510_udc.h>
-#include <usb/udc.h>
-
-#include "ep0.h"
-
-
-#define UDC_INIT_MDELAY 80 /* Device settle delay */
-#define UDC_MAX_ENDPOINTS 31 /* Number of endpoints on this UDC */
-
-/* Some kind of debugging output... */
-#if 1
-#define UDCDBG(str)
-#define UDCDBGA(fmt,args...)
-#else /* The bugs still exists... */
-#define UDCDBG(str) serial_printf("[%s] %s:%d: " str "\n", __FILE__,__FUNCTION__,__LINE__)
-#define UDCDBGA(fmt,args...) serial_printf("[%s] %s:%d: " fmt "\n", __FILE__,__FUNCTION__,__LINE__, ##args)
-#endif
-
-#if 1
-#define UDCREG(name)
-#define UDCREGL(name)
-#else /* The bugs still exists... */
-#define UDCREG(name) serial_printf("%s():%d: %s[%08x]=%.4x\n",__FUNCTION__,__LINE__, (#name), name, inw(name)) /* For 16-bit regs */
-#define UDCREGL(name) serial_printf("%s():%d: %s[%08x]=%.8x\n",__FUNCTION__,__LINE__, (#name), name, inl(name)) /* For 32-bit regs */
-#endif
-
-
-static struct urb *ep0_urb = NULL;
-
-static struct usb_device_instance *udc_device; /* Used in interrupt handler */
-static u16 udc_devstat = 0; /* UDC status (DEVSTAT) */
-static u32 udc_interrupts = 0;
-
-static void udc_stall_ep (unsigned int ep_addr);
-
-
-static struct usb_endpoint_instance *omap1510_find_ep (int ep)
-{
- int i;
-
- for (i = 0; i < udc_device->bus->max_endpoints; i++) {
- if (udc_device->bus->endpoint_array[i].endpoint_address == ep)
- return &udc_device->bus->endpoint_array[i];
- }
- return NULL;
-}
-
-/* ************************************************************************** */
-/* IO
- */
-
-/*
- * omap1510_prepare_endpoint_for_rx
- *
- * This function implements TRM Figure 14-11.
- *
- * The endpoint to prepare for transfer is specified as a physical endpoint
- * number. For OUT (rx) endpoints 1 through 15, the corresponding endpoint
- * configuration register is checked to see if the endpoint is ISO or not.
- * If the OUT endpoint is valid and is non-ISO then its FIFO is enabled.
- * No action is taken for endpoint 0 or for IN (tx) endpoints 16 through 30.
- */
-static void omap1510_prepare_endpoint_for_rx (int ep_addr)
-{
- int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
-
- UDCDBGA ("omap1510_prepare_endpoint %x", ep_addr);
- if (((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)) {
- if ((inw (UDC_EP_RX (ep_num)) &
- (UDC_EPn_RX_Valid | UDC_EPn_RX_Iso)) ==
- UDC_EPn_RX_Valid) {
- /* rx endpoint is valid, non-ISO, so enable its FIFO */
- outw (UDC_EP_Sel | ep_num, UDC_EP_NUM);
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- outw (0, UDC_EP_NUM);
- }
- }
-}
-
-/* omap1510_configure_endpoints
- *
- * This function implements TRM Figure 14-10.
- */
-static void omap1510_configure_endpoints (struct usb_device_instance *device)
-{
- int ep;
- struct usb_bus_instance *bus;
- struct usb_endpoint_instance *endpoint;
- unsigned short ep_ptr;
- unsigned short ep_size;
- unsigned short ep_isoc;
- unsigned short ep_doublebuffer;
- int ep_addr;
- int packet_size;
- int buffer_size;
- int attributes;
-
- bus = device->bus;
-
- /* There is a dedicated 2048 byte buffer for USB packets that may be
- * arbitrarily partitioned among the endpoints on 8-byte boundaries.
- * The first 8 bytes are reserved for receiving setup packets on
- * endpoint 0.
- */
- ep_ptr = 8; /* reserve the first 8 bytes for the setup fifo */
-
- for (ep = 0; ep < bus->max_endpoints; ep++) {
- endpoint = bus->endpoint_array + ep;
- ep_addr = endpoint->endpoint_address;
- if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
- /* IN endpoint */
- packet_size = endpoint->tx_packetSize;
- attributes = endpoint->tx_attributes;
- } else {
- /* OUT endpoint */
- packet_size = endpoint->rcv_packetSize;
- attributes = endpoint->rcv_attributes;
- }
-
- switch (packet_size) {
- case 0:
- ep_size = 0;
- break;
- case 8:
- ep_size = 0;
- break;
- case 16:
- ep_size = 1;
- break;
- case 32:
- ep_size = 2;
- break;
- case 64:
- ep_size = 3;
- break;
- case 128:
- ep_size = 4;
- break;
- case 256:
- ep_size = 5;
- break;
- case 512:
- ep_size = 6;
- break;
- default:
- UDCDBGA ("ep 0x%02x has bad packet size %d",
- ep_addr, packet_size);
- packet_size = 0;
- ep_size = 0;
- break;
- }
-
- switch (attributes & USB_ENDPOINT_XFERTYPE_MASK) {
- case USB_ENDPOINT_XFER_CONTROL:
- case USB_ENDPOINT_XFER_BULK:
- case USB_ENDPOINT_XFER_INT:
- default:
- /* A non-isochronous endpoint may optionally be
- * double-buffered. For now we disable
- * double-buffering.
- */
- ep_doublebuffer = 0;
- ep_isoc = 0;
- if (packet_size > 64)
- packet_size = 0;
- if (!ep || !ep_doublebuffer)
- buffer_size = packet_size;
- else
- buffer_size = packet_size * 2;
- break;
- case USB_ENDPOINT_XFER_ISOC:
- /* Isochronous endpoints are always double-
- * buffered, but the double-buffering bit
- * in the endpoint configuration register
- * becomes the msb of the endpoint size so we
- * set the double-buffering flag to zero.
- */
- ep_doublebuffer = 0;
- ep_isoc = 1;
- buffer_size = packet_size * 2;
- break;
- }
-
- /* check to see if our packet buffer RAM is exhausted */
- if ((ep_ptr + buffer_size) > 2048) {
- UDCDBGA ("out of packet RAM for ep 0x%02x buf size %d", ep_addr, buffer_size);
- buffer_size = packet_size = 0;
- }
-
- /* force a default configuration for endpoint 0 since it is
- * always enabled
- */
- if (!ep && ((packet_size < 8) || (packet_size > 64))) {
- buffer_size = packet_size = 64;
- ep_size = 3;
- }
-
- if (!ep) {
- /* configure endpoint 0 */
- outw ((ep_size << 12) | (ep_ptr >> 3), UDC_EP0);
- /*UDCDBGA("ep 0 buffer offset 0x%03x packet size 0x%03x", */
- /* ep_ptr, packet_size); */
- } else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
- /* IN endpoint */
- if (packet_size) {
- outw ((1 << 15) | (ep_doublebuffer << 14) |
- (ep_size << 12) | (ep_isoc << 11) |
- (ep_ptr >> 3),
- UDC_EP_TX (ep_addr &
- USB_ENDPOINT_NUMBER_MASK));
- UDCDBGA ("IN ep %d buffer offset 0x%03x"
- " packet size 0x%03x",
- ep_addr & USB_ENDPOINT_NUMBER_MASK,
- ep_ptr, packet_size);
- } else {
- outw (0,
- UDC_EP_TX (ep_addr &
- USB_ENDPOINT_NUMBER_MASK));
- }
- } else {
- /* OUT endpoint */
- if (packet_size) {
- outw ((1 << 15) | (ep_doublebuffer << 14) |
- (ep_size << 12) | (ep_isoc << 11) |
- (ep_ptr >> 3),
- UDC_EP_RX (ep_addr &
- USB_ENDPOINT_NUMBER_MASK));
- UDCDBGA ("OUT ep %d buffer offset 0x%03x"
- " packet size 0x%03x",
- ep_addr & USB_ENDPOINT_NUMBER_MASK,
- ep_ptr, packet_size);
- } else {
- outw (0,
- UDC_EP_RX (ep_addr &
- USB_ENDPOINT_NUMBER_MASK));
- }
- }
- ep_ptr += buffer_size;
- }
-}
-
-/* omap1510_deconfigure_device
- *
- * This function balances omap1510_configure_device.
- */
-static void omap1510_deconfigure_device (void)
-{
- int epnum;
-
- UDCDBG ("clear Cfg_Lock");
- outw (inw (UDC_SYSCON1) & ~UDC_Cfg_Lock, UDC_SYSCON1);
- UDCREG (UDC_SYSCON1);
-
- /* deconfigure all endpoints */
- for (epnum = 1; epnum <= 15; epnum++) {
- outw (0, UDC_EP_RX (epnum));
- outw (0, UDC_EP_TX (epnum));
- }
-}
-
-/* omap1510_configure_device
- *
- * This function implements TRM Figure 14-9.
- */
-static void omap1510_configure_device (struct usb_device_instance *device)
-{
- omap1510_configure_endpoints (device);
-
-
- /* Figure 14-9 indicates we should enable interrupts here, but we have
- * other routines (udc_all_interrupts, udc_suspended_interrupts) to
- * do that.
- */
-
- UDCDBG ("set Cfg_Lock");
- outw (inw (UDC_SYSCON1) | UDC_Cfg_Lock, UDC_SYSCON1);
- UDCREG (UDC_SYSCON1);
-}
-
-/* omap1510_write_noniso_tx_fifo
- *
- * This function implements TRM Figure 14-30.
- *
- * If the endpoint has an active tx_urb, then the next packet of data from the
- * URB is written to the tx FIFO. The total amount of data in the urb is given
- * by urb->actual_length. The maximum amount of data that can be sent in any
- * one packet is given by endpoint->tx_packetSize. The number of data bytes
- * from this URB that have already been transmitted is given by endpoint->sent.
- * endpoint->last is updated by this routine with the number of data bytes
- * transmitted in this packet.
- *
- * In accordance with Figure 14-30, the EP_NUM register must already have been
- * written with the value to select the appropriate tx FIFO before this routine
- * is called.
- */
-static void omap1510_write_noniso_tx_fifo (struct usb_endpoint_instance
- *endpoint)
-{
- struct urb *urb = endpoint->tx_urb;
-
- if (urb) {
- unsigned int last, i;
-
- UDCDBGA ("urb->buffer %p, buffer_length %d, actual_length %d",
- urb->buffer, urb->buffer_length, urb->actual_length);
- if ((last =
- MIN (urb->actual_length - endpoint->sent,
- endpoint->tx_packetSize))) {
- u8 *cp = urb->buffer + endpoint->sent;
-
- UDCDBGA ("endpoint->sent %d, tx_packetSize %d, last %d", endpoint->sent, endpoint->tx_packetSize, last);
-
- if (((u32) cp & 1) == 0) { /* word aligned? */
- outsw (UDC_DATA, cp, last >> 1);
- } else { /* byte aligned. */
- for (i = 0; i < (last >> 1); i++) {
- u16 w = ((u16) cp[2 * i + 1] << 8) |
- (u16) cp[2 * i];
- outw (w, UDC_DATA);
- }
- }
- if (last & 1) {
- outb (*(cp + last - 1), UDC_DATA);
- }
- }
- endpoint->last = last;
- }
-}
-
-/* omap1510_read_noniso_rx_fifo
- *
- * This function implements TRM Figure 14-28.
- *
- * If the endpoint has an active rcv_urb, then the next packet of data is read
- * from the rcv FIFO and written to rcv_urb->buffer at offset
- * rcv_urb->actual_length to append the packet data to the data from any
- * previous packets for this transfer. We assume that there is sufficient room
- * left in the buffer to hold an entire packet of data.
- *
- * The return value is the number of bytes read from the FIFO for this packet.
- *
- * In accordance with Figure 14-28, the EP_NUM register must already have been
- * written with the value to select the appropriate rcv FIFO before this routine
- * is called.
- */
-static int omap1510_read_noniso_rx_fifo (struct usb_endpoint_instance
- *endpoint)
-{
- struct urb *urb = endpoint->rcv_urb;
- int len = 0;
-
- if (urb) {
- len = inw (UDC_RXFSTAT);
-
- if (len) {
- unsigned char *cp = urb->buffer + urb->actual_length;
-
- insw (UDC_DATA, cp, len >> 1);
- if (len & 1)
- *(cp + len - 1) = inb (UDC_DATA);
- }
- }
- return len;
-}
-
-/* omap1510_prepare_for_control_write_status
- *
- * This function implements TRM Figure 14-17.
- *
- * We have to deal here with non-autodecoded control writes that haven't already
- * been dealt with by ep0_recv_setup. The non-autodecoded standard control
- * write requests are: set/clear endpoint feature, set configuration, set
- * interface, and set descriptor. ep0_recv_setup handles set/clear requests for
- * ENDPOINT_HALT by halting the endpoint for a set request and resetting the
- * endpoint for a clear request. ep0_recv_setup returns an error for
- * SET_DESCRIPTOR requests which causes them to be terminated with a stall by
- * the setup handler. A SET_INTERFACE request is handled by ep0_recv_setup by
- * generating a DEVICE_SET_INTERFACE event. This leaves only the
- * SET_CONFIGURATION event for us to deal with here.
- *
- */
-static void omap1510_prepare_for_control_write_status (struct urb *urb)
-{
- struct usb_device_request *request = &urb->device_request;;
-
- /* check for a SET_CONFIGURATION request */
- if (request->bRequest == USB_REQ_SET_CONFIGURATION) {
- int configuration = le16_to_cpu (request->wValue) & 0xff;
- unsigned short devstat = inw (UDC_DEVSTAT);
-
- if ((devstat & (UDC_ADD | UDC_CFG)) == UDC_ADD) {
- /* device is currently in ADDRESSED state */
- if (configuration) {
- /* Assume the specified non-zero configuration
- * value is valid and switch to the CONFIGURED
- * state.
- */
- outw (UDC_Dev_Cfg, UDC_SYSCON2);
- }
- } else if ((devstat & UDC_CFG) == UDC_CFG) {
- /* device is currently in CONFIGURED state */
- if (!configuration) {
- /* Switch to ADDRESSED state. */
- outw (UDC_Clr_Cfg, UDC_SYSCON2);
- }
- }
- }
-
- /* select EP0 tx FIFO */
- outw (UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
- /* clear endpoint (no data bytes in status stage) */
- outw (UDC_Clr_EP, UDC_CTRL);
- /* enable the EP0 tx FIFO */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- /* deselect the endpoint */
- outw (UDC_EP_Dir, UDC_EP_NUM);
-}
-
-/* udc_state_transition_up
- * udc_state_transition_down
- *
- * Helper functions to implement device state changes. The device states and
- * the events that transition between them are:
- *
- * STATE_ATTACHED
- * || /\
- * \/ ||
- * DEVICE_HUB_CONFIGURED DEVICE_HUB_RESET
- * || /\
- * \/ ||
- * STATE_POWERED
- * || /\
- * \/ ||
- * DEVICE_RESET DEVICE_POWER_INTERRUPTION
- * || /\
- * \/ ||
- * STATE_DEFAULT
- * || /\
- * \/ ||
- * DEVICE_ADDRESS_ASSIGNED DEVICE_RESET
- * || /\
- * \/ ||
- * STATE_ADDRESSED
- * || /\
- * \/ ||
- * DEVICE_CONFIGURED DEVICE_DE_CONFIGURED
- * || /\
- * \/ ||
- * STATE_CONFIGURED
- *
- * udc_state_transition_up transitions up (in the direction from STATE_ATTACHED
- * to STATE_CONFIGURED) from the specified initial state to the specified final
- * state, passing through each intermediate state on the way. If the initial
- * state is at or above (i.e. nearer to STATE_CONFIGURED) the final state, then
- * no state transitions will take place.
- *
- * udc_state_transition_down transitions down (in the direction from
- * STATE_CONFIGURED to STATE_ATTACHED) from the specified initial state to the
- * specified final state, passing through each intermediate state on the way.
- * If the initial state is at or below (i.e. nearer to STATE_ATTACHED) the final
- * state, then no state transitions will take place.
- *
- * These functions must only be called with interrupts disabled.
- */
-static void udc_state_transition_up (usb_device_state_t initial,
- usb_device_state_t final)
-{
- if (initial < final) {
- switch (initial) {
- case STATE_ATTACHED:
- usbd_device_event_irq (udc_device,
- DEVICE_HUB_CONFIGURED, 0);
- if (final == STATE_POWERED)
- break;
- case STATE_POWERED:
- usbd_device_event_irq (udc_device, DEVICE_RESET, 0);
- if (final == STATE_DEFAULT)
- break;
- case STATE_DEFAULT:
- usbd_device_event_irq (udc_device,
- DEVICE_ADDRESS_ASSIGNED, 0);
- if (final == STATE_ADDRESSED)
- break;
- case STATE_ADDRESSED:
- usbd_device_event_irq (udc_device, DEVICE_CONFIGURED,
- 0);
- case STATE_CONFIGURED:
- break;
- default:
- break;
- }
- }
-}
-
-static void udc_state_transition_down (usb_device_state_t initial,
- usb_device_state_t final)
-{
- if (initial > final) {
- switch (initial) {
- case STATE_CONFIGURED:
- usbd_device_event_irq (udc_device, DEVICE_DE_CONFIGURED, 0);
- if (final == STATE_ADDRESSED)
- break;
- case STATE_ADDRESSED:
- usbd_device_event_irq (udc_device, DEVICE_RESET, 0);
- if (final == STATE_DEFAULT)
- break;
- case STATE_DEFAULT:
- usbd_device_event_irq (udc_device, DEVICE_POWER_INTERRUPTION, 0);
- if (final == STATE_POWERED)
- break;
- case STATE_POWERED:
- usbd_device_event_irq (udc_device, DEVICE_HUB_RESET, 0);
- case STATE_ATTACHED:
- break;
- default:
- break;
- }
- }
-}
-
-/* Handle all device state changes.
- * This function implements TRM Figure 14-21.
- */
-static void omap1510_udc_state_changed (void)
-{
- u16 bits;
- u16 devstat = inw (UDC_DEVSTAT);
-
- UDCDBGA ("state changed, devstat %x, old %x", devstat, udc_devstat);
-
- bits = devstat ^ udc_devstat;
- if (bits) {
- if (bits & UDC_ATT) {
- if (devstat & UDC_ATT) {
- UDCDBG ("device attached and powered");
- udc_state_transition_up (udc_device->device_state, STATE_POWERED);
- } else {
- UDCDBG ("device detached or unpowered");
- udc_state_transition_down (udc_device->device_state, STATE_ATTACHED);
- }
- }
- if (bits & UDC_USB_Reset) {
- if (devstat & UDC_USB_Reset) {
- UDCDBG ("device reset in progess");
- udc_state_transition_down (udc_device->device_state, STATE_POWERED);
- } else {
- UDCDBG ("device reset completed");
- }
- }
- if (bits & UDC_DEF) {
- if (devstat & UDC_DEF) {
- UDCDBG ("device entering default state");
- udc_state_transition_up (udc_device->device_state, STATE_DEFAULT);
- } else {
- UDCDBG ("device leaving default state");
- udc_state_transition_down (udc_device->device_state, STATE_POWERED);
- }
- }
- if (bits & UDC_SUS) {
- if (devstat & UDC_SUS) {
- UDCDBG ("entering suspended state");
- usbd_device_event_irq (udc_device, DEVICE_BUS_INACTIVE, 0);
- } else {
- UDCDBG ("leaving suspended state");
- usbd_device_event_irq (udc_device, DEVICE_BUS_ACTIVITY, 0);
- }
- }
- if (bits & UDC_R_WK_OK) {
- UDCDBGA ("remote wakeup %s", (devstat & UDC_R_WK_OK)
- ? "enabled" : "disabled");
- }
- if (bits & UDC_ADD) {
- if (devstat & UDC_ADD) {
- UDCDBG ("default -> addressed");
- udc_state_transition_up (udc_device->device_state, STATE_ADDRESSED);
- } else {
- UDCDBG ("addressed -> default");
- udc_state_transition_down (udc_device->device_state, STATE_DEFAULT);
- }
- }
- if (bits & UDC_CFG) {
- if (devstat & UDC_CFG) {
- UDCDBG ("device configured");
- /* The ep0_recv_setup function generates the
- * DEVICE_CONFIGURED event when a
- * USB_REQ_SET_CONFIGURATION setup packet is
- * received, so we should already be in the
- * state STATE_CONFIGURED.
- */
- udc_state_transition_up (udc_device->device_state, STATE_CONFIGURED);
- } else {
- UDCDBG ("device deconfigured");
- udc_state_transition_down (udc_device->device_state, STATE_ADDRESSED);
- }
- }
- }
-
- /* Clear interrupt source */
- outw (UDC_DS_Chg, UDC_IRQ_SRC);
-
- /* Save current DEVSTAT */
- udc_devstat = devstat;
-}
-
-/* Handle SETUP USB interrupt.
- * This function implements TRM Figure 14-14.
- */
-static void omap1510_udc_setup (struct usb_endpoint_instance *endpoint)
-{
- UDCDBG ("-> Entering device setup");
-
- do {
- const int setup_pktsize = 8;
- unsigned char *datap =
- (unsigned char *) &ep0_urb->device_request;
-
- /* Gain access to EP 0 setup FIFO */
- outw (UDC_Setup_Sel, UDC_EP_NUM);
-
- /* Read control request data */
- insb (UDC_DATA, datap, setup_pktsize);
-
- UDCDBGA ("EP0 setup read [%x %x %x %x %x %x %x %x]",
- *(datap + 0), *(datap + 1), *(datap + 2),
- *(datap + 3), *(datap + 4), *(datap + 5),
- *(datap + 6), *(datap + 7));
-
- /* Reset EP0 setup FIFO */
- outw (0, UDC_EP_NUM);
- } while (inw (UDC_IRQ_SRC) & UDC_Setup);
-
- /* Try to process setup packet */
- if (ep0_recv_setup (ep0_urb)) {
- /* Not a setup packet, stall next EP0 transaction */
- udc_stall_ep (0);
- UDCDBG ("can't parse setup packet, still waiting for setup");
- return;
- }
-
- /* Check direction */
- if ((ep0_urb->device_request.bmRequestType & USB_REQ_DIRECTION_MASK)
- == USB_REQ_HOST2DEVICE) {
- UDCDBG ("control write on EP0");
- if (le16_to_cpu (ep0_urb->device_request.wLength)) {
- /* We don't support control write data stages.
- * The only standard control write request with a data
- * stage is SET_DESCRIPTOR, and ep0_recv_setup doesn't
- * support that so we just stall those requests. A
- * function driver might support a non-standard
- * write request with a data stage, but it isn't
- * obvious what we would do with the data if we read it
- * so we'll just stall it. It seems like the API isn't
- * quite right here.
- */
-#if 0
- /* Here is what we would do if we did support control
- * write data stages.
- */
- ep0_urb->actual_length = 0;
- outw (0, UDC_EP_NUM);
- /* enable the EP0 rx FIFO */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
-#else
- /* Stall this request */
- UDCDBG ("Stalling unsupported EP0 control write data "
- "stage.");
- udc_stall_ep (0);
-#endif
- } else {
- omap1510_prepare_for_control_write_status (ep0_urb);
- }
- } else {
- UDCDBG ("control read on EP0");
- /* The ep0_recv_setup function has already placed our response
- * packet data in ep0_urb->buffer and the packet length in
- * ep0_urb->actual_length.
- */
- endpoint->tx_urb = ep0_urb;
- endpoint->sent = 0;
- /* select the EP0 tx FIFO */
- outw (UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
- /* Write packet data to the FIFO. omap1510_write_noniso_tx_fifo
- * will update endpoint->last with the number of bytes written
- * to the FIFO.
- */
- omap1510_write_noniso_tx_fifo (endpoint);
- /* enable the FIFO to start the packet transmission */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- /* deselect the EP0 tx FIFO */
- outw (UDC_EP_Dir, UDC_EP_NUM);
- }
-
- UDCDBG ("<- Leaving device setup");
-}
-
-/* Handle endpoint 0 RX interrupt
- * This routine implements TRM Figure 14-16.
- */
-static void omap1510_udc_ep0_rx (struct usb_endpoint_instance *endpoint)
-{
- unsigned short status;
-
- UDCDBG ("RX on EP0");
- /* select EP0 rx FIFO */
- outw (UDC_EP_Sel, UDC_EP_NUM);
-
- status = inw (UDC_STAT_FLG);
-
- if (status & UDC_ACK) {
- /* Check direction */
- if ((ep0_urb->device_request.bmRequestType
- & USB_REQ_DIRECTION_MASK) == USB_REQ_HOST2DEVICE) {
- /* This rx interrupt must be for a control write data
- * stage packet.
- *
- * We don't support control write data stages.
- * We should never end up here.
- */
-
- /* clear the EP0 rx FIFO */
- outw (UDC_Clr_EP, UDC_CTRL);
-
- /* deselect the EP0 rx FIFO */
- outw (0, UDC_EP_NUM);
-
- UDCDBG ("Stalling unexpected EP0 control write "
- "data stage packet");
- udc_stall_ep (0);
- } else {
- /* This rx interrupt must be for a control read status
- * stage packet.
- */
- UDCDBG ("ACK on EP0 control read status stage packet");
- /* deselect EP0 rx FIFO */
- outw (0, UDC_EP_NUM);
- }
- } else if (status & UDC_STALL) {
- UDCDBG ("EP0 stall during RX");
- /* deselect EP0 rx FIFO */
- outw (0, UDC_EP_NUM);
- } else {
- /* deselect EP0 rx FIFO */
- outw (0, UDC_EP_NUM);
- }
-}
-
-/* Handle endpoint 0 TX interrupt
- * This routine implements TRM Figure 14-18.
- */
-static void omap1510_udc_ep0_tx (struct usb_endpoint_instance *endpoint)
-{
- unsigned short status;
- struct usb_device_request *request = &ep0_urb->device_request;
-
- UDCDBG ("TX on EP0");
- /* select EP0 TX FIFO */
- outw (UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
-
- status = inw (UDC_STAT_FLG);
- if (status & UDC_ACK) {
- /* Check direction */
- if ((request->bmRequestType & USB_REQ_DIRECTION_MASK) ==
- USB_REQ_HOST2DEVICE) {
- /* This tx interrupt must be for a control write status
- * stage packet.
- */
- UDCDBG ("ACK on EP0 control write status stage packet");
- /* deselect EP0 TX FIFO */
- outw (UDC_EP_Dir, UDC_EP_NUM);
- } else {
- /* This tx interrupt must be for a control read data
- * stage packet.
- */
- int wLength = le16_to_cpu (request->wLength);
-
- /* Update our count of bytes sent so far in this
- * transfer.
- */
- endpoint->sent += endpoint->last;
-
- /* We are finished with this transfer if we have sent
- * all of the bytes in our tx urb (urb->actual_length)
- * unless we need a zero-length terminating packet. We
- * need a zero-length terminating packet if we returned
- * fewer bytes than were requested (wLength) by the host,
- * and the number of bytes we returned is an exact
- * multiple of the packet size endpoint->tx_packetSize.
- */
- if ((endpoint->sent == ep0_urb->actual_length)
- && ((ep0_urb->actual_length == wLength)
- || (endpoint->last !=
- endpoint->tx_packetSize))) {
- /* Done with control read data stage. */
- UDCDBG ("control read data stage complete");
- /* deselect EP0 TX FIFO */
- outw (UDC_EP_Dir, UDC_EP_NUM);
- /* select EP0 RX FIFO to prepare for control
- * read status stage.
- */
- outw (UDC_EP_Sel, UDC_EP_NUM);
- /* clear the EP0 RX FIFO */
- outw (UDC_Clr_EP, UDC_CTRL);
- /* enable the EP0 RX FIFO */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- /* deselect the EP0 RX FIFO */
- outw (0, UDC_EP_NUM);
- } else {
- /* We still have another packet of data to send
- * in this control read data stage or else we
- * need a zero-length terminating packet.
- */
- UDCDBG ("ACK control read data stage packet");
- omap1510_write_noniso_tx_fifo (endpoint);
- /* enable the EP0 tx FIFO to start transmission */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- /* deselect EP0 TX FIFO */
- outw (UDC_EP_Dir, UDC_EP_NUM);
- }
- }
- } else if (status & UDC_STALL) {
- UDCDBG ("EP0 stall during TX");
- /* deselect EP0 TX FIFO */
- outw (UDC_EP_Dir, UDC_EP_NUM);
- } else {
- /* deselect EP0 TX FIFO */
- outw (UDC_EP_Dir, UDC_EP_NUM);
- }
-}
-
-/* Handle RX transaction on non-ISO endpoint.
- * This function implements TRM Figure 14-27.
- * The ep argument is a physical endpoint number for a non-ISO OUT endpoint
- * in the range 1 to 15.
- */
-static void omap1510_udc_epn_rx (int ep)
-{
- unsigned short status;
-
- /* Check endpoint status */
- status = inw (UDC_STAT_FLG);
-
- if (status & UDC_ACK) {
- int nbytes;
- struct usb_endpoint_instance *endpoint =
- omap1510_find_ep (ep);
-
- nbytes = omap1510_read_noniso_rx_fifo (endpoint);
- usbd_rcv_complete (endpoint, nbytes, 0);
-
- /* enable rx FIFO to prepare for next packet */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- } else if (status & UDC_STALL) {
- UDCDBGA ("STALL on RX endpoint %d", ep);
- } else if (status & UDC_NAK) {
- UDCDBGA ("NAK on RX ep %d", ep);
- } else {
- serial_printf ("omap-bi: RX on ep %d with status %x", ep,
- status);
- }
-}
-
-/* Handle TX transaction on non-ISO endpoint.
- * This function implements TRM Figure 14-29.
- * The ep argument is a physical endpoint number for a non-ISO IN endpoint
- * in the range 16 to 30.
- */
-static void omap1510_udc_epn_tx (int ep)
-{
- unsigned short status;
-
- /*serial_printf("omap1510_udc_epn_tx( %x )\n",ep); */
-
- /* Check endpoint status */
- status = inw (UDC_STAT_FLG);
-
- if (status & UDC_ACK) {
- struct usb_endpoint_instance *endpoint =
- omap1510_find_ep (ep);
-
- /* We need to transmit a terminating zero-length packet now if
- * we have sent all of the data in this URB and the transfer
- * size was an exact multiple of the packet size.
- */
- if (endpoint->tx_urb
- && (endpoint->last == endpoint->tx_packetSize)
- && (endpoint->tx_urb->actual_length - endpoint->sent -
- endpoint->last == 0)) {
- /* Prepare to transmit a zero-length packet. */
- endpoint->sent += endpoint->last;
- /* write 0 bytes of data to FIFO */
- omap1510_write_noniso_tx_fifo (endpoint);
- /* enable tx FIFO to start transmission */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- } else if (endpoint->tx_urb
- && endpoint->tx_urb->actual_length) {
- /* retire the data that was just sent */
- usbd_tx_complete (endpoint);
- /* Check to see if we have more data ready to transmit
- * now.
- */
- if (endpoint->tx_urb
- && endpoint->tx_urb->actual_length) {
- /* write data to FIFO */
- omap1510_write_noniso_tx_fifo (endpoint);
- /* enable tx FIFO to start transmission */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- }
- }
- } else if (status & UDC_STALL) {
- UDCDBGA ("STALL on TX endpoint %d", ep);
- } else if (status & UDC_NAK) {
- UDCDBGA ("NAK on TX endpoint %d", ep);
- } else {
- /*serial_printf("omap-bi: TX on ep %d with status %x\n", ep, status); */
- }
-}
-
-
-/*
--------------------------------------------------------------------------------
-*/
-
-/* Handle general USB interrupts and dispatch according to type.
- * This function implements TRM Figure 14-13.
- */
-void omap1510_udc_irq (void)
-{
- u16 irq_src = inw (UDC_IRQ_SRC);
- int valid_irq = 0;
-
- if (!(irq_src & ~UDC_SOF_Flg)) /* ignore SOF interrupts ) */
- return;
-
- UDCDBGA ("< IRQ #%d start >- %x", udc_interrupts, irq_src);
- /*serial_printf("< IRQ #%d start >- %x\n", udc_interrupts, irq_src); */
-
- if (irq_src & UDC_DS_Chg) {
- /* Device status changed */
- omap1510_udc_state_changed ();
- valid_irq++;
- }
- if (irq_src & UDC_EP0_RX) {
- /* Endpoint 0 receive */
- outw (UDC_EP0_RX, UDC_IRQ_SRC); /* ack interrupt */
- omap1510_udc_ep0_rx (udc_device->bus->endpoint_array + 0);
- valid_irq++;
- }
- if (irq_src & UDC_EP0_TX) {
- /* Endpoint 0 transmit */
- outw (UDC_EP0_TX, UDC_IRQ_SRC); /* ack interrupt */
- omap1510_udc_ep0_tx (udc_device->bus->endpoint_array + 0);
- valid_irq++;
- }
- if (irq_src & UDC_Setup) {
- /* Device setup */
- omap1510_udc_setup (udc_device->bus->endpoint_array + 0);
- valid_irq++;
- }
- /*if (!valid_irq) */
- /* serial_printf("unknown interrupt, IRQ_SRC %.4x\n", irq_src); */
- UDCDBGA ("< IRQ #%d end >", udc_interrupts);
- udc_interrupts++;
-}
-
-/* This function implements TRM Figure 14-26. */
-void omap1510_udc_noniso_irq (void)
-{
- unsigned short epnum;
- unsigned short irq_src = inw (UDC_IRQ_SRC);
- int valid_irq = 0;
-
- if (!(irq_src & (UDC_EPn_RX | UDC_EPn_TX)))
- return;
-
- UDCDBGA ("non-ISO IRQ, IRQ_SRC %x", inw (UDC_IRQ_SRC));
-
- if (irq_src & UDC_EPn_RX) { /* Endpoint N OUT transaction */
- /* Determine the endpoint number for this interrupt */
- epnum = (inw (UDC_EPN_STAT) & 0x0f00) >> 8;
- UDCDBGA ("RX on ep %x", epnum);
-
- /* acknowledge interrupt */
- outw (UDC_EPn_RX, UDC_IRQ_SRC);
-
- if (epnum) {
- /* select the endpoint FIFO */
- outw (UDC_EP_Sel | epnum, UDC_EP_NUM);
-
- omap1510_udc_epn_rx (epnum);
-
- /* deselect the endpoint FIFO */
- outw (epnum, UDC_EP_NUM);
- }
- valid_irq++;
- }
- if (irq_src & UDC_EPn_TX) { /* Endpoint N IN transaction */
- /* Determine the endpoint number for this interrupt */
- epnum = (inw (UDC_EPN_STAT) & 0x000f) | USB_DIR_IN;
- UDCDBGA ("TX on ep %x", epnum);
-
- /* acknowledge interrupt */
- outw (UDC_EPn_TX, UDC_IRQ_SRC);
-
- if (epnum) {
- /* select the endpoint FIFO */
- outw (UDC_EP_Sel | UDC_EP_Dir | epnum, UDC_EP_NUM);
-
- omap1510_udc_epn_tx (epnum);
-
- /* deselect the endpoint FIFO */
- outw (UDC_EP_Dir | epnum, UDC_EP_NUM);
- }
- valid_irq++;
- }
- if (!valid_irq)
- serial_printf (": unknown non-ISO interrupt, IRQ_SRC %.4x\n",
- irq_src);
-}
-
-/*
--------------------------------------------------------------------------------
-*/
-
-
-/*
- * Start of public functions.
- */
-
-/* Called to start packet transmission. */
-int udc_endpoint_write (struct usb_endpoint_instance *endpoint)
-{
- unsigned short epnum =
- endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;
-
- UDCDBGA ("Starting transmit on ep %x", epnum);
-
- if (endpoint->tx_urb) {
- /* select the endpoint FIFO */
- outw (UDC_EP_Sel | UDC_EP_Dir | epnum, UDC_EP_NUM);
- /* write data to FIFO */
- omap1510_write_noniso_tx_fifo (endpoint);
- /* enable tx FIFO to start transmission */
- outw (UDC_Set_FIFO_En, UDC_CTRL);
- /* deselect the endpoint FIFO */
- outw (UDC_EP_Dir | epnum, UDC_EP_NUM);
- }
-
- return 0;
-}
-
-/* Start to initialize h/w stuff */
-int udc_init (void)
-{
- u16 udc_rev;
- uchar value;
- ulong gpio;
- int i;
-
- /* Let the device settle down before we start */
- for (i = 0; i < UDC_INIT_MDELAY; i++) udelay(1000);
-
- udc_device = NULL;
-
- UDCDBG ("starting");
-
- /* Check peripheral reset. Must be 1 to make sure
- MPU TIPB peripheral reset is inactive */
- UDCREG (ARM_RSTCT2);
-
- /* Set and check clock control.
- * We might ought to be using the clock control API to do
- * this instead of fiddling with the clock registers directly
- * here.
- */
- outw ((1 << 4) | (1 << 5), CLOCK_CTRL);
- UDCREG (CLOCK_CTRL);
-
- /* Set and check SOFT
- * The below line of code has been changed to perform a
- * read-modify-write instead of a simple write for
- * configuring the SOFT_REQ register. This allows the code
- * to be compatible with OMAP5912 and OMAP16xx devices
- */
- outw ((1 << 4) | (1 << 3) | 1 | (inw(SOFT_REQ)), SOFT_REQ);
-
- /* Short delay to wait for DPLL */
- udelay (1000);
-
- /* Print banner with device revision */
- udc_rev = inw (UDC_REV) & 0xff;
-
-#ifdef CONFIG_OMAP1610
- printf ("USB: TI OMAP5912 USB function module rev %d.%d\n",
- udc_rev >> 4, udc_rev & 0xf);
-#endif
-
- /* The VBUS_MODE bit selects whether VBUS detection is done via
- * software (1) or hardware (0). When software detection is
- * selected, VBUS_CTRL selects whether USB is not connected (0)
- * or connected (1).
- */
- outl (inl (FUNC_MUX_CTRL_0) | UDC_VBUS_MODE, FUNC_MUX_CTRL_0);
- outl (inl (FUNC_MUX_CTRL_0) & ~UDC_VBUS_CTRL, FUNC_MUX_CTRL_0);
- UDCREGL (FUNC_MUX_CTRL_0);
-
- /*
- * At this point, device is ready for configuration...
- */
-
- UDCDBG ("disable USB interrupts");
- outw (0, UDC_IRQ_EN);
- UDCREG (UDC_IRQ_EN);
-
- UDCDBG ("disable USB DMA");
- outw (0, UDC_DMA_IRQ_EN);
- UDCREG (UDC_DMA_IRQ_EN);
-
- UDCDBG ("initialize SYSCON1");
- outw (UDC_Self_Pwr | UDC_Pullup_En, UDC_SYSCON1);
- UDCREG (UDC_SYSCON1);
-
- return 0;
-}
-
-/* Stall endpoint */
-static void udc_stall_ep (unsigned int ep_addr)
-{
- /*int ep_addr = PHYS_EP_TO_EP_ADDR(ep); */
- int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
-
- UDCDBGA ("stall ep_addr %d", ep_addr);
-
- /* REVISIT?
- * The OMAP TRM section 14.2.4.2 says we must check that the FIFO
- * is empty before halting the endpoint. The current implementation
- * doesn't check that the FIFO is empty.
- */
-
- if (!ep_num) {
- outw (UDC_Stall_Cmd, UDC_SYSCON2);
- } else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
- if (inw (UDC_EP_RX (ep_num)) & UDC_EPn_RX_Valid) {
- /* we have a valid rx endpoint, so halt it */
- outw (UDC_EP_Sel | ep_num, UDC_EP_NUM);
- outw (UDC_Set_Halt, UDC_CTRL);
- outw (ep_num, UDC_EP_NUM);
- }
- } else {
- if (inw (UDC_EP_TX (ep_num)) & UDC_EPn_TX_Valid) {
- /* we have a valid tx endpoint, so halt it */
- outw (UDC_EP_Sel | UDC_EP_Dir | ep_num, UDC_EP_NUM);
- outw (UDC_Set_Halt, UDC_CTRL);
- outw (ep_num, UDC_EP_NUM);
- }
- }
-}
-
-/* Reset endpoint */
-#if 0
-static void udc_reset_ep (unsigned int ep_addr)
-{
- /*int ep_addr = PHYS_EP_TO_EP_ADDR(ep); */
- int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
-
- UDCDBGA ("reset ep_addr %d", ep_addr);
-
- if (!ep_num) {
- /* control endpoint 0 can't be reset */
- } else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
- UDCDBGA ("UDC_EP_RX(%d) = 0x%04x", ep_num,
- inw (UDC_EP_RX (ep_num)));
- if (inw (UDC_EP_RX (ep_num)) & UDC_EPn_RX_Valid) {
- /* we have a valid rx endpoint, so reset it */
- outw (ep_num | UDC_EP_Sel, UDC_EP_NUM);
- outw (UDC_Reset_EP, UDC_CTRL);
- outw (ep_num, UDC_EP_NUM);
- UDCDBGA ("OUT endpoint %d reset", ep_num);
- }
- } else {
- UDCDBGA ("UDC_EP_TX(%d) = 0x%04x", ep_num,
- inw (UDC_EP_TX (ep_num)));
- /* Resetting of tx endpoints seems to be causing the USB function
- * module to fail, which causes problems when the driver is
- * uninstalled. We'll skip resetting tx endpoints for now until
- * we figure out what the problem is.
- */
-#if 0
- if (inw (UDC_EP_TX (ep_num)) & UDC_EPn_TX_Valid) {
- /* we have a valid tx endpoint, so reset it */
- outw (ep_num | UDC_EP_Dir | UDC_EP_Sel, UDC_EP_NUM);
- outw (UDC_Reset_EP, UDC_CTRL);
- outw (ep_num | UDC_EP_Dir, UDC_EP_NUM);
- UDCDBGA ("IN endpoint %d reset", ep_num);
- }
-#endif
- }
-}
-#endif
-
-/* ************************************************************************** */
-
-/**
- * udc_check_ep - check logical endpoint
- *
- * Return physical endpoint number to use for this logical endpoint or zero if not valid.
- */
-#if 0
-int udc_check_ep (int logical_endpoint, int packetsize)
-{
- if ((logical_endpoint == 0x80) ||
- ((logical_endpoint & 0x8f) != logical_endpoint)) {
- return 0;
- }
-
- switch (packetsize) {
- case 8:
- case 16:
- case 32:
- case 64:
- case 128:
- case 256:
- case 512:
- break;
- default:
- return 0;
- }
-
- return EP_ADDR_TO_PHYS_EP (logical_endpoint);
-}
-#endif
-
-/*
- * udc_setup_ep - setup endpoint
- *
- * Associate a physical endpoint with endpoint_instance
- */
-void udc_setup_ep (struct usb_device_instance *device,
- unsigned int ep, struct usb_endpoint_instance *endpoint)
-{
- UDCDBGA ("setting up endpoint addr %x", endpoint->endpoint_address);
-
- /* This routine gets called by bi_modinit for endpoint 0 and from
- * bi_config for all of the other endpoints. bi_config gets called
- * during the DEVICE_CREATE, DEVICE_CONFIGURED, and
- * DEVICE_SET_INTERFACE events. We need to reconfigure the OMAP packet
- * RAM after bi_config scans the selected device configuration and
- * initializes the endpoint structures, but before this routine enables
- * the OUT endpoint FIFOs. Since bi_config calls this routine in a
- * loop for endpoints 1 through UDC_MAX_ENDPOINTS, we reconfigure our
- * packet RAM here when ep==1.
- * I really hate to do this here, but it seems like the API exported
- * by the USB bus interface controller driver to the usbd-bi module
- * isn't quite right so there is no good place to do this.
- */
- if (ep == 1) {
- omap1510_deconfigure_device ();
- omap1510_configure_device (device);
- }
-
- if (endpoint && (ep < UDC_MAX_ENDPOINTS)) {
- int ep_addr = endpoint->endpoint_address;
-
- if (!ep_addr) {
- /* nothing to do for endpoint 0 */
- } else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
- /* nothing to do for IN (tx) endpoints */
- } else { /* OUT (rx) endpoint */
- if (endpoint->rcv_packetSize) {
- /*struct urb* urb = &(urb_out_array[ep&0xFF]); */
- /*urb->endpoint = endpoint; */
- /*urb->device = device; */
- /*urb->buffer_length = sizeof(urb->buffer); */
-
- /*endpoint->rcv_urb = urb; */
- omap1510_prepare_endpoint_for_rx (ep_addr);
- }
- }
- }
-}
-
-/**
- * udc_disable_ep - disable endpoint
- * @ep:
- *
- * Disable specified endpoint
- */
-#if 0
-void udc_disable_ep (unsigned int ep_addr)
-{
- /*int ep_addr = PHYS_EP_TO_EP_ADDR(ep); */
- int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
- struct usb_endpoint_instance *endpoint = omap1510_find_ep (ep_addr); /*udc_device->bus->endpoint_array + ep; */
-
- UDCDBGA ("disable ep_addr %d", ep_addr);
-
- if (!ep_num) {
- /* nothing to do for endpoint 0 */ ;
- } else if ((ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
- if (endpoint->tx_packetSize) {
- /* we have a valid tx endpoint */
- /*usbd_flush_tx(endpoint); */
- endpoint->tx_urb = NULL;
- }
- } else {
- if (endpoint->rcv_packetSize) {
- /* we have a valid rx endpoint */
- /*usbd_flush_rcv(endpoint); */
- endpoint->rcv_urb = NULL;
- }
- }
-}
-#endif
-
-/* ************************************************************************** */
-
-/**
- * udc_connected - is the USB cable connected
- *
- * Return non-zero if cable is connected.
- */
-#if 0
-int udc_connected (void)
-{
- return ((inw (UDC_DEVSTAT) & UDC_ATT) == UDC_ATT);
-}
-#endif
-
-/* Turn on the USB connection by enabling the pullup resistor */
-void udc_connect (void)
-{
- UDCDBG ("connect, enable Pullup");
- outl (0x00000018, FUNC_MUX_CTRL_D);
-}
-
-/* Turn off the USB connection by disabling the pullup resistor */
-void udc_disconnect (void)
-{
- UDCDBG ("disconnect, disable Pullup");
- outl (0x00000000, FUNC_MUX_CTRL_D);
-}
-
-/* ************************************************************************** */
-
-
-/*
- * udc_disable_interrupts - disable interrupts
- * switch off interrupts
- */
-#if 0
-void udc_disable_interrupts (struct usb_device_instance *device)
-{
- UDCDBG ("disabling all interrupts");
- outw (0, UDC_IRQ_EN);
-}
-#endif
-
-/* ************************************************************************** */
-
-/**
- * udc_ep0_packetsize - return ep0 packetsize
- */
-#if 0
-int udc_ep0_packetsize (void)
-{
- return EP0_PACKETSIZE;
-}
-#endif
-
-/* Switch on the UDC */
-void udc_enable (struct usb_device_instance *device)
-{
- UDCDBGA ("enable device %p, status %d", device, device->status);
-
- /* initialize driver state variables */
- udc_devstat = 0;
-
- /* Save the device structure pointer */
- udc_device = device;
-
- /* Setup ep0 urb */
- if (!ep0_urb) {
- ep0_urb =
- usbd_alloc_urb (udc_device,
- udc_device->bus->endpoint_array);
- } else {
- serial_printf ("udc_enable: ep0_urb already allocated %p\n",
- ep0_urb);
- }
-
- UDCDBG ("Check clock status");
- UDCREG (STATUS_REQ);
-
- /* The VBUS_MODE bit selects whether VBUS detection is done via
- * software (1) or hardware (0). When software detection is
- * selected, VBUS_CTRL selects whether USB is not connected (0)
- * or connected (1).
- */
- outl (inl (FUNC_MUX_CTRL_0) | UDC_VBUS_CTRL | UDC_VBUS_MODE,
- FUNC_MUX_CTRL_0);
- UDCREGL (FUNC_MUX_CTRL_0);
-
- omap1510_configure_device (device);
-}
-
-/* Switch off the UDC */
-void udc_disable (void)
-{
- UDCDBG ("disable UDC");
-
- omap1510_deconfigure_device ();
-
- /* The VBUS_MODE bit selects whether VBUS detection is done via
- * software (1) or hardware (0). When software detection is
- * selected, VBUS_CTRL selects whether USB is not connected (0)
- * or connected (1).
- */
- outl (inl (FUNC_MUX_CTRL_0) | UDC_VBUS_MODE, FUNC_MUX_CTRL_0);
- outl (inl (FUNC_MUX_CTRL_0) & ~UDC_VBUS_CTRL, FUNC_MUX_CTRL_0);
- UDCREGL (FUNC_MUX_CTRL_0);
-
- /* Free ep0 URB */
- if (ep0_urb) {
- /*usbd_dealloc_urb(ep0_urb); */
- ep0_urb = NULL;
- }
-
- /* Reset device pointer.
- * We ought to do this here to balance the initialization of udc_device
- * in udc_enable, but some of our other exported functions get called
- * by the bus interface driver after udc_disable, so we have to hang on
- * to the device pointer to avoid a null pointer dereference. */
- /* udc_device = NULL; */
-}
-
-/**
- * udc_startup - allow udc code to do any additional startup
- */
-void udc_startup_events (struct usb_device_instance *device)
-{
- /* The DEVICE_INIT event puts the USB device in the state STATE_INIT. */
- usbd_device_event_irq (device, DEVICE_INIT, 0);
-
- /* The DEVICE_CREATE event puts the USB device in the state
- * STATE_ATTACHED.
- */
- usbd_device_event_irq (device, DEVICE_CREATE, 0);
-
- /* Some USB controller driver implementations signal
- * DEVICE_HUB_CONFIGURED and DEVICE_RESET events here.
- * DEVICE_HUB_CONFIGURED causes a transition to the state STATE_POWERED,
- * and DEVICE_RESET causes a transition to the state STATE_DEFAULT.
- * The OMAP USB client controller has the capability to detect when the
- * USB cable is connected to a powered USB bus via the ATT bit in the
- * DEVSTAT register, so we will defer the DEVICE_HUB_CONFIGURED and
- * DEVICE_RESET events until later.
- */
-
- udc_enable (device);
-}
-
-/**
- * udc_irq - do pseudo interrupts
- */
-void udc_irq(void)
-{
- /* Loop while we have interrupts.
- * If we don't do this, the input chain
- * polling delay is likely to miss
- * host requests.
- */
- while (inw (UDC_IRQ_SRC) & ~UDC_SOF_Flg) {
- /* Handle any new IRQs */
- omap1510_udc_irq ();
- omap1510_udc_noniso_irq ();
- }
-}
-
-/* Flow control */
-void udc_set_nak(int epid)
-{
- /* TODO: implement this functionality in omap1510 */
-}
-
-void udc_unset_nak (int epid)
-{
- /* TODO: implement this functionality in omap1510 */
-}