* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <console.h>
+#include <dm.h>
#include <errno.h>
#include <malloc.h>
+#include <memalign.h>
#include <stdio_dev.h>
#include <asm/byteorder.h>
#endif
/* Keyboard sampling rate */
-#define REPEAT_RATE (40 / 4) /* 40msec -> 25cps */
+#define REPEAT_RATE 40 /* 40msec -> 25cps */
#define REPEAT_DELAY 10 /* 10 x REPEAT_RATE = 400msec */
#define NUM_LOCK 0x53
#define USB_KBD_BOOT_REPORT_SIZE 8
struct usb_kbd_pdata {
+ unsigned long intpipe;
+ int intpktsize;
+ int intinterval;
+ unsigned long last_report;
+ struct int_queue *intq;
+
uint32_t repeat_delay;
uint32_t usb_in_pointer;
/* The period of time between two calls of usb_kbd_testc(). */
static unsigned long __maybe_unused kbd_testc_tms;
-/* Generic keyboard event polling. */
-void usb_kbd_generic_poll(void)
-{
- struct stdio_dev *dev;
- struct usb_device *usb_kbd_dev;
- struct usb_kbd_pdata *data;
- struct usb_interface *iface;
- struct usb_endpoint_descriptor *ep;
- int pipe;
- int maxp;
-
- /* Get the pointer to USB Keyboard device pointer */
- dev = stdio_get_by_name(DEVNAME);
- usb_kbd_dev = (struct usb_device *)dev->priv;
- data = usb_kbd_dev->privptr;
- iface = &usb_kbd_dev->config.if_desc[0];
- ep = &iface->ep_desc[0];
- pipe = usb_rcvintpipe(usb_kbd_dev, ep->bEndpointAddress);
-
- /* Submit a interrupt transfer request */
- maxp = usb_maxpacket(usb_kbd_dev, pipe);
- usb_submit_int_msg(usb_kbd_dev, pipe, data->new,
- min(maxp, USB_KBD_BOOT_REPORT_SIZE),
- ep->bInterval);
-}
-
/* Puts character in the queue and sets up the in and out pointer. */
static void usb_kbd_put_queue(struct usb_kbd_pdata *data, char c)
{
}
}
- if ((scancode > 0x1d) && (scancode < 0x3a)) {
+ if ((scancode > 0x1d) && (scancode < 0x39)) {
/* Shift pressed */
if (modifier & (LEFT_SHIFT | RIGHT_SHIFT))
keycode = usb_kbd_numkey_shifted[scancode - 0x1e];
/* Interrupt polling */
static inline void usb_kbd_poll_for_event(struct usb_device *dev)
{
-#if defined(CONFIG_SYS_USB_EVENT_POLL)
- struct usb_interface *iface;
- struct usb_endpoint_descriptor *ep;
- struct usb_kbd_pdata *data;
- int pipe;
- int maxp;
-
- /* Get the pointer to USB Keyboard device pointer */
- data = dev->privptr;
- iface = &dev->config.if_desc[0];
- ep = &iface->ep_desc[0];
- pipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
+#if defined(CONFIG_SYS_USB_EVENT_POLL)
+ struct usb_kbd_pdata *data = dev->privptr;
/* Submit a interrupt transfer request */
- maxp = usb_maxpacket(dev, pipe);
- usb_submit_int_msg(dev, pipe, &data->new[0],
- min(maxp, USB_KBD_BOOT_REPORT_SIZE),
- ep->bInterval);
+ usb_submit_int_msg(dev, data->intpipe, &data->new[0], data->intpktsize,
+ data->intinterval);
usb_kbd_irq_worker(dev);
-#elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
+#elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) || \
+ defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
+#if defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
struct usb_interface *iface;
struct usb_kbd_pdata *data = dev->privptr;
iface = &dev->config.if_desc[0];
usb_get_report(dev, iface->desc.bInterfaceNumber,
1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE);
- if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE))
+ if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE)) {
usb_kbd_irq_worker(dev);
+#else
+ struct usb_kbd_pdata *data = dev->privptr;
+ if (poll_int_queue(dev, data->intq)) {
+ usb_kbd_irq_worker(dev);
+ /* We've consumed all queued int packets, create new */
+ destroy_int_queue(dev, data->intq);
+ data->intq = create_int_queue(dev, data->intpipe, 1,
+ USB_KBD_BOOT_REPORT_SIZE, data->new,
+ data->intinterval);
+#endif
+ data->last_report = get_timer(0);
+ /* Repeat last usb hid report every REPEAT_RATE ms for keyrepeat */
+ } else if (data->last_report != -1 &&
+ get_timer(data->last_report) > REPEAT_RATE) {
+ usb_kbd_irq_worker(dev);
+ data->last_report = get_timer(0);
+ }
#endif
}
}
/* probes the USB device dev for keyboard type. */
-static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum)
+static int usb_kbd_probe_dev(struct usb_device *dev, unsigned int ifnum)
{
struct usb_interface *iface;
struct usb_endpoint_descriptor *ep;
struct usb_kbd_pdata *data;
- int pipe, maxp;
if (dev->descriptor.bNumConfigurations != 1)
return 0;
iface = &dev->config.if_desc[ifnum];
- if (iface->desc.bInterfaceClass != 3)
+ if (iface->desc.bInterfaceClass != USB_CLASS_HID)
return 0;
- if (iface->desc.bInterfaceSubClass != 1)
+ if (iface->desc.bInterfaceSubClass != USB_SUB_HID_BOOT)
return 0;
- if (iface->desc.bInterfaceProtocol != 1)
+ if (iface->desc.bInterfaceProtocol != USB_PROT_HID_KEYBOARD)
return 0;
if (iface->desc.bNumEndpoints != 1)
/* Set IRQ handler */
dev->irq_handle = usb_kbd_irq;
- pipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
- maxp = usb_maxpacket(dev, pipe);
+ data->intpipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
+ data->intpktsize = min(usb_maxpacket(dev, data->intpipe),
+ USB_KBD_BOOT_REPORT_SIZE);
+ data->intinterval = ep->bInterval;
+ data->last_report = -1;
/* We found a USB Keyboard, install it. */
usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0);
debug("USB KBD: found set idle...\n");
- usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE, 0);
+#if !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) && \
+ !defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
+ usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE / 4, 0);
+#else
+ usb_set_idle(dev, iface->desc.bInterfaceNumber, 0, 0);
+#endif
debug("USB KBD: enable interrupt pipe...\n");
- if (usb_submit_int_msg(dev, pipe, data->new,
- min(maxp, USB_KBD_BOOT_REPORT_SIZE),
- ep->bInterval) < 0) {
+#ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
+ data->intq = create_int_queue(dev, data->intpipe, 1,
+ USB_KBD_BOOT_REPORT_SIZE, data->new,
+ data->intinterval);
+ if (!data->intq) {
+#elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)
+ if (usb_get_report(dev, iface->desc.bInterfaceNumber,
+ 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE) < 0) {
+#else
+ if (usb_submit_int_msg(dev, data->intpipe, data->new, data->intpktsize,
+ data->intinterval) < 0) {
+#endif
printf("Failed to get keyboard state from device %04x:%04x\n",
dev->descriptor.idVendor, dev->descriptor.idProduct);
/* Abort, we don't want to use that non-functional keyboard. */
return 1;
}
+static int probe_usb_keyboard(struct usb_device *dev)
+{
+ char *stdinname;
+ struct stdio_dev usb_kbd_dev;
+ int error;
+
+ /* Try probing the keyboard */
+ if (usb_kbd_probe_dev(dev, 0) != 1)
+ return -ENOENT;
+
+ /* Register the keyboard */
+ debug("USB KBD: register.\n");
+ memset(&usb_kbd_dev, 0, sizeof(struct stdio_dev));
+ strcpy(usb_kbd_dev.name, DEVNAME);
+ usb_kbd_dev.flags = DEV_FLAGS_INPUT;
+ usb_kbd_dev.getc = usb_kbd_getc;
+ usb_kbd_dev.tstc = usb_kbd_testc;
+ usb_kbd_dev.priv = (void *)dev;
+ error = stdio_register(&usb_kbd_dev);
+ if (error)
+ return error;
+
+ stdinname = env_get("stdin");
+#if CONFIG_IS_ENABLED(CONSOLE_MUX)
+ error = iomux_doenv(stdin, stdinname);
+ if (error)
+ return error;
+#else
+ /* Check if this is the standard input device. */
+ if (strcmp(stdinname, DEVNAME))
+ return 1;
+
+ /* Reassign the console */
+ if (overwrite_console())
+ return 1;
+
+ error = console_assign(stdin, DEVNAME);
+ if (error)
+ return error;
+#endif
+
+ return 0;
+}
+
+#ifndef CONFIG_DM_USB
/* Search for keyboard and register it if found. */
int drv_usb_kbd_init(void)
{
- struct stdio_dev usb_kbd_dev;
- struct usb_device *dev;
- char *stdinname = getenv("stdin");
int error, i;
+ debug("%s: Probing for keyboard\n", __func__);
/* Scan all USB Devices */
for (i = 0; i < USB_MAX_DEVICE; i++) {
+ struct usb_device *dev;
+
/* Get USB device. */
dev = usb_get_dev_index(i);
if (!dev)
- return -1;
+ break;
if (dev->devnum == -1)
continue;
- /* Try probing the keyboard */
- if (usb_kbd_probe(dev, 0) != 1)
- continue;
-
- /* Register the keyboard */
- debug("USB KBD: register.\n");
- memset(&usb_kbd_dev, 0, sizeof(struct stdio_dev));
- strcpy(usb_kbd_dev.name, DEVNAME);
- usb_kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
- usb_kbd_dev.getc = usb_kbd_getc;
- usb_kbd_dev.tstc = usb_kbd_testc;
- usb_kbd_dev.priv = (void *)dev;
- error = stdio_register(&usb_kbd_dev);
- if (error)
- return error;
-
-#ifdef CONFIG_CONSOLE_MUX
- error = iomux_doenv(stdin, stdinname);
- if (error)
- return error;
-#else
- /* Check if this is the standard input device. */
- if (strcmp(stdinname, DEVNAME))
- return 1;
-
- /* Reassign the console */
- if (overwrite_console())
+ error = probe_usb_keyboard(dev);
+ if (!error)
return 1;
-
- error = console_assign(stdin, DEVNAME);
- if (error)
+ if (error && error != -ENOENT)
return error;
-#endif
-
- return 1;
}
/* No USB Keyboard found */
/* Deregister the keyboard. */
int usb_kbd_deregister(int force)
{
-#ifdef CONFIG_SYS_STDIO_DEREGISTER
- int ret = stdio_deregister(DEVNAME, force);
- if (ret && ret != -ENODEV)
- return ret;
+#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
+ struct stdio_dev *dev;
+ struct usb_device *usb_kbd_dev;
+ struct usb_kbd_pdata *data;
+
+ dev = stdio_get_by_name(DEVNAME);
+ if (dev) {
+ usb_kbd_dev = (struct usb_device *)dev->priv;
+ data = usb_kbd_dev->privptr;
+ if (stdio_deregister_dev(dev, force) != 0)
+ return 1;
+#if CONFIG_IS_ENABLED(CONSOLE_MUX)
+ if (iomux_doenv(stdin, env_get("stdin")) != 0)
+ return 1;
+#endif
+#ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
+ destroy_int_queue(usb_kbd_dev, data->intq);
+#endif
+ free(data->new);
+ free(data);
+ }
return 0;
#else
return 1;
#endif
}
+
+#endif
+
+#ifdef CONFIG_DM_USB
+
+static int usb_kbd_probe(struct udevice *dev)
+{
+ struct usb_device *udev = dev_get_parent_priv(dev);
+
+ return probe_usb_keyboard(udev);
+}
+
+static int usb_kbd_remove(struct udevice *dev)
+{
+ struct usb_device *udev = dev_get_parent_priv(dev);
+ struct usb_kbd_pdata *data;
+ struct stdio_dev *sdev;
+ int ret;
+
+ sdev = stdio_get_by_name(DEVNAME);
+ if (!sdev) {
+ ret = -ENXIO;
+ goto err;
+ }
+ data = udev->privptr;
+ if (stdio_deregister_dev(sdev, true)) {
+ ret = -EPERM;
+ goto err;
+ }
+#if CONFIG_IS_ENABLED(CONSOLE_MUX)
+ if (iomux_doenv(stdin, env_get("stdin"))) {
+ ret = -ENOLINK;
+ goto err;
+ }
+#endif
+#ifdef CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
+ destroy_int_queue(udev, data->intq);
+#endif
+ free(data->new);
+ free(data);
+
+ return 0;
+err:
+ printf("%s: warning, ret=%d", __func__, ret);
+ return ret;
+}
+
+static const struct udevice_id usb_kbd_ids[] = {
+ { .compatible = "usb-keyboard" },
+ { }
+};
+
+U_BOOT_DRIVER(usb_kbd) = {
+ .name = "usb_kbd",
+ .id = UCLASS_KEYBOARD,
+ .of_match = usb_kbd_ids,
+ .probe = usb_kbd_probe,
+ .remove = usb_kbd_remove,
+};
+
+static const struct usb_device_id kbd_id_table[] = {
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
+ USB_DEVICE_ID_MATCH_INT_SUBCLASS |
+ USB_DEVICE_ID_MATCH_INT_PROTOCOL,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = USB_SUB_HID_BOOT,
+ .bInterfaceProtocol = USB_PROT_HID_KEYBOARD,
+ },
+ { } /* Terminating entry */
+};
+
+U_BOOT_USB_DEVICE(usb_kbd, kbd_id_table);
+
+#endif
projects / people / ms / u-boot.git / blobdiff