X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Fusb_kbd.c;h=c34fd5c786a2e93e3b49c3694a8a3702351fa98e;hb=302e609fe653baf1ae3a7573d2f4eafd86ab696b;hp=960a70a43d158465820e1ffe13e32386eca4767a;hpb=fb3ef649ed5cf3e5e73aea6ed161cdde37cb7a5f;p=karo-tx-uboot.git diff --git a/common/usb_kbd.c b/common/usb_kbd.c index 960a70a43d..c34fd5c786 100644 --- a/common/usb_kbd.c +++ b/common/usb_kbd.c @@ -5,24 +5,7 @@ * Part of this source has been derived from the Linux USB * project. * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * + * SPDX-License-Identifier: GPL-2.0+ */ #include #include @@ -31,12 +14,6 @@ #include -#ifdef USB_KBD_DEBUG -#define USB_KBD_PRINTF(fmt, args...) printf(fmt, ##args) -#else -#define USB_KBD_PRINTF(fmt, args...) -#endif - /* * If overwrite_console returns 1, the stdin, stderr and stdout * are switched to the serial port, else the settings in the @@ -93,6 +70,15 @@ static const unsigned char usb_kbd_num_keypad[] = { '.', 0, 0, 0, '=' }; +/* + * map arrow keys to ^F/^B ^N/^P, can't really use the proper + * ANSI sequence for arrow keys because the queuing code breaks + * when a single keypress expands to 3 queue elements + */ +static const unsigned char usb_kbd_arrow[] = { + 0x6, 0x2, 0xe, 0x10 +}; + /* * NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this * order. See usb_kbd_setled() function! @@ -105,6 +91,12 @@ static const unsigned char usb_kbd_num_keypad[] = { #define USB_KBD_LEDMASK \ (USB_KBD_NUMLOCK | USB_KBD_CAPSLOCK | USB_KBD_SCROLLLOCK) +/* + * USB Keyboard reports are 8 bytes in boot protocol. + * Appendix B of HID Device Class Definition 1.11 + */ +#define USB_KBD_BOOT_REPORT_SIZE 8 + struct usb_kbd_pdata { uint32_t repeat_delay; @@ -112,12 +104,17 @@ struct usb_kbd_pdata { uint32_t usb_out_pointer; uint8_t usb_kbd_buffer[USB_KBD_BUFFER_LEN]; - uint8_t new[8]; - uint8_t old[8]; + uint8_t *new; + uint8_t old[USB_KBD_BOOT_REPORT_SIZE]; uint8_t flags; }; +extern int __maybe_unused net_busy_flag; + +/* 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) { @@ -140,7 +137,8 @@ void usb_kbd_generic_poll(void) /* Submit a interrupt transfer request */ maxp = usb_maxpacket(usb_kbd_dev, pipe); usb_submit_int_msg(usb_kbd_dev, pipe, data->new, - maxp > 8 ? 8 : maxp, ep->bInterval); + min(maxp, USB_KBD_BOOT_REPORT_SIZE), + ep->bInterval); } /* Puts character in the queue and sets up the in and out pointer. */ @@ -224,6 +222,10 @@ static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode, keycode = usb_kbd_numkey[scancode - 0x1e]; } + /* Arrow keys */ + if ((scancode >= 0x4f) && (scancode <= 0x52)) + keycode = usb_kbd_arrow[scancode - 0x4f]; + /* Numeric keypad */ if ((scancode >= 0x54) && (scancode <= 0x67)) keycode = usb_kbd_num_keypad[scancode - 0x54]; @@ -249,7 +251,7 @@ static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode, /* Report keycode if any */ if (keycode) { - USB_KBD_PRINTF("%c", keycode); + debug("%c", keycode); usb_kbd_put_queue(data, keycode); } @@ -271,8 +273,11 @@ static uint32_t usb_kbd_service_key(struct usb_device *dev, int i, int up) old = data->old; } - if ((old[i] > 3) && (memscan(new + 2, old[i], 6) == new + 8)) + if ((old[i] > 3) && + (memscan(new + 2, old[i], USB_KBD_BOOT_REPORT_SIZE - 2) == + new + USB_KBD_BOOT_REPORT_SIZE)) { res |= usb_kbd_translate(data, old[i], data->new[0], up); + } return res; } @@ -290,7 +295,7 @@ static int usb_kbd_irq_worker(struct usb_device *dev) else if ((data->new[0] == LEFT_CNTR) || (data->new[0] == RIGHT_CNTR)) data->flags |= USB_KBD_CTRL; - for (i = 2; i < 8; i++) { + for (i = 2; i < USB_KBD_BOOT_REPORT_SIZE; i++) { res |= usb_kbd_service_key(dev, i, 0); res |= usb_kbd_service_key(dev, i, 1); } @@ -302,7 +307,7 @@ static int usb_kbd_irq_worker(struct usb_device *dev) if (res == 1) usb_kbd_setled(dev); - memcpy(data->old, data->new, 8); + memcpy(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE); return 1; } @@ -310,9 +315,10 @@ static int usb_kbd_irq_worker(struct usb_device *dev) /* Keyboard interrupt handler */ static int usb_kbd_irq(struct usb_device *dev) { - if ((dev->irq_status != 0) || (dev->irq_act_len != 8)) { - USB_KBD_PRINTF("USB KBD: Error %lX, len %d\n", - dev->irq_status, dev->irq_act_len); + if ((dev->irq_status != 0) || + (dev->irq_act_len != USB_KBD_BOOT_REPORT_SIZE)) { + debug("USB KBD: Error %lX, len %d\n", + dev->irq_status, dev->irq_act_len); return 1; } @@ -323,26 +329,53 @@ static int usb_kbd_irq(struct usb_device *dev) static inline void usb_kbd_poll_for_event(struct usb_device *dev) { #if defined(CONFIG_SYS_USB_EVENT_POLL) - 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); + + /* 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_kbd_irq_worker(dev); #elif 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, sizeof(data->new)); - if (memcmp(data->old, data->new, sizeof(data->new))) + 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE); + if (memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE)) usb_kbd_irq_worker(dev); #endif } /* test if a character is in the queue */ -static int usb_kbd_testc(void) +static int usb_kbd_testc(struct stdio_dev *sdev) { struct stdio_dev *dev; struct usb_device *usb_kbd_dev; struct usb_kbd_pdata *data; +#ifdef CONFIG_CMD_NET + /* + * If net_busy_flag is 1, NET transfer is running, + * then we check key-pressed every second (first check may be + * less than 1 second) to improve TFTP booting performance. + */ + if (net_busy_flag && (get_timer(kbd_testc_tms) < CONFIG_SYS_HZ)) + return 0; + kbd_testc_tms = get_timer(0); +#endif dev = stdio_get_by_name(DEVNAME); usb_kbd_dev = (struct usb_device *)dev->priv; data = usb_kbd_dev->privptr; @@ -353,7 +386,7 @@ static int usb_kbd_testc(void) } /* gets the character from the queue */ -static int usb_kbd_getc(void) +static int usb_kbd_getc(struct stdio_dev *sdev) { struct stdio_dev *dev; struct usb_device *usb_kbd_dev; @@ -408,7 +441,7 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum) if ((ep->bmAttributes & 3) != 3) return 0; - USB_KBD_PRINTF("USB KBD: found set protocol...\n"); + debug("USB KBD: found set protocol...\n"); data = malloc(sizeof(struct usb_kbd_pdata)); if (!data) { @@ -419,6 +452,10 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum) /* Clear private data */ memset(data, 0, sizeof(struct usb_kbd_pdata)); + /* allocate input buffer aligned and sized to USB DMA alignment */ + data->new = memalign(USB_DMA_MINALIGN, + roundup(USB_KBD_BOOT_REPORT_SIZE, USB_DMA_MINALIGN)); + /* Insert private data into USB device structure */ dev->privptr = data; @@ -431,12 +468,18 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum) /* We found a USB Keyboard, install it. */ usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0); - USB_KBD_PRINTF("USB KBD: found set idle...\n"); + debug("USB KBD: found set idle...\n"); usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE, 0); - USB_KBD_PRINTF("USB KBD: enable interrupt pipe...\n"); - usb_submit_int_msg(dev, pipe, data->new, maxp > 8 ? 8 : maxp, - ep->bInterval); + 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) { + 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 0; + } /* Success. */ return 1; @@ -465,21 +508,20 @@ int drv_usb_kbd_init(void) continue; /* We found a keyboard, check if it is already registered. */ - USB_KBD_PRINTF("USB KBD: found set up device.\n"); + debug("USB KBD: found set up device.\n"); old_dev = stdio_get_by_name(DEVNAME); if (old_dev) { /* Already registered, just return ok. */ - USB_KBD_PRINTF("USB KBD: is already registered.\n"); + debug("USB KBD: is already registered.\n"); + usb_kbd_deregister(); return 1; } /* Register the keyboard */ - USB_KBD_PRINTF("USB KBD: register.\n"); + 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.putc = NULL; - usb_kbd_dev.puts = NULL; usb_kbd_dev.getc = usb_kbd_getc; usb_kbd_dev.tstc = usb_kbd_testc; usb_kbd_dev.priv = (void *)dev;