X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=common%2Fusb_kbd.c;h=ecc3085cc0811b5471cab07415904221153abf33;hb=f0809f9a38f81562638eb5576142b40e0e56a734;hp=2472d25d4a9bc33b3f9e21724000eaaf0549c71e;hpb=d53da847cf274b8fd3ea362a3dfff68ea6206613;p=u-boot diff --git a/common/usb_kbd.c b/common/usb_kbd.c index 2472d25d4a..ecc3085cc0 100644 --- a/common/usb_kbd.c +++ b/common/usb_kbd.c @@ -5,38 +5,16 @@ * 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 #include #include #include #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 +71,15 @@ 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! @@ -105,43 +92,34 @@ 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 { + unsigned long intpipe; + int intpktsize; + int intinterval; + struct int_queue *intq; + uint32_t repeat_delay; uint32_t usb_in_pointer; 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; }; -/* 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); +extern int __maybe_unused net_busy_flag; - /* 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); -} +/* The period of time between two calls of usb_kbd_testc(). */ +static unsigned long __maybe_unused kbd_testc_tms; /* 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) @@ -172,11 +150,12 @@ static void usb_kbd_setled(struct usb_device *dev) { struct usb_interface *iface = &dev->config.if_desc[0]; struct usb_kbd_pdata *data = dev->privptr; - uint32_t leds = data->flags & USB_KBD_LEDMASK; + ALLOC_ALIGN_BUFFER(uint32_t, leds, 1, USB_DMA_MINALIGN); + *leds = data->flags & USB_KBD_LEDMASK; usb_control_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, - 0x200, iface->desc.bInterfaceNumber, (void *)&leds, 1, 0); + 0x200, iface->desc.bInterfaceNumber, leds, 1, 0); } #define CAPITAL_MASK 0x20 @@ -224,6 +203,10 @@ 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 +232,7 @@ 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 +254,11 @@ 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 +276,7 @@ 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 +288,7 @@ 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 +296,10 @@ 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 +310,51 @@ 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_kbd_pdata *data = dev->privptr; + + /* Submit a interrupt transfer request */ + 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) 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); +#elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE) + 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 } /* 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 +365,7 @@ 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; @@ -380,7 +392,6 @@ static int usb_kbd_probe(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; @@ -408,7 +419,7 @@ 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) { @@ -419,24 +430,42 @@ 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; /* 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; /* 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"); +#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) { +#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 0; + } /* Success. */ return 1; @@ -445,7 +474,7 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum) /* Search for keyboard and register it if found. */ int drv_usb_kbd_init(void) { - struct stdio_dev usb_kbd_dev, *old_dev; + struct stdio_dev usb_kbd_dev; struct usb_device *dev; char *stdinname = getenv("stdin"); int error, i; @@ -464,22 +493,11 @@ int drv_usb_kbd_init(void) if (usb_kbd_probe(dev, 0) != 1) continue; - /* We found a keyboard, check if it is already registered. */ - USB_KBD_PRINTF("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"); - 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; @@ -487,6 +505,11 @@ int drv_usb_kbd_init(void) 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; @@ -498,6 +521,7 @@ int drv_usb_kbd_init(void) error = console_assign(stdin, DEVNAME); if (error) return error; +#endif return 1; } @@ -507,10 +531,31 @@ int drv_usb_kbd_init(void) } /* Deregister the keyboard. */ -int usb_kbd_deregister(void) +int usb_kbd_deregister(int force) { #ifdef CONFIG_SYS_STDIO_DEREGISTER - return stdio_deregister(DEVNAME); + 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; +#ifdef CONFIG_CONSOLE_MUX + if (iomux_doenv(stdin, getenv("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