From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aJNUn-0004J7-Ia for barebox@lists.infradead.org; Wed, 13 Jan 2016 15:38:11 +0000 From: Sascha Hauer Date: Wed, 13 Jan 2016 16:37:29 +0100 Message-Id: <1452699456-1025-9-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1452699456-1025-1-git-send-email-s.hauer@pengutronix.de> References: <1452699456-1025-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 08/15] input: usb keyboard: convert to input framework To: Barebox List Conert the USB keyboard over to the new input core as a first user. Signed-off-by: Sascha Hauer --- drivers/input/Kconfig | 1 + drivers/input/usb_kbd.c | 296 +++++++++--------------------------------------- 2 files changed, 55 insertions(+), 242 deletions(-) diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig index e0368b2..b840df2 100644 --- a/drivers/input/Kconfig +++ b/drivers/input/Kconfig @@ -54,6 +54,7 @@ config KEYBOARD_USB depends on USB_HOST depends on CONSOLE_FULL select POLLER + select INPUT help This driver implements support for usb keyboard. diff --git a/drivers/input/usb_kbd.c b/drivers/input/usb_kbd.c index 655d0c7..74bc11f 100644 --- a/drivers/input/usb_kbd.c +++ b/drivers/input/usb_kbd.c @@ -23,56 +23,7 @@ #include #include #include -#include - -#define USB_KBD_FIFO_SIZE 50 - -#define REPEAT_RATE 40 /* 40msec -> 25cps */ -#define REPEAT_DELAY 10 /* 10 x REPEAT_RATE = 400msec */ - -#define NUM_LOCK 0x53 -#define CAPS_LOCK 0x39 -#define SCROLL_LOCK 0x47 - -/* Modifier bits */ -#define LEFT_CNTR (1 << 0) -#define LEFT_SHIFT (1 << 1) -#define LEFT_ALT (1 << 2) -#define LEFT_GUI (1 << 3) -#define RIGHT_CNTR (1 << 4) -#define RIGHT_SHIFT (1 << 5) -#define RIGHT_ALT (1 << 6) -#define RIGHT_GUI (1 << 7) - -/* Size of the keyboard buffer */ -#define USB_KBD_BUFFER_LEN 0x20 - -/* Keyboard maps */ -static const unsigned char usb_kbd_numkey[] = { - '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', - '\r', 0x1b, '\b', '\t', ' ', '-', '=', '[', ']', - '\\', '#', ';', '\'', '`', ',', '.', '/' -}; -static const unsigned char usb_kbd_numkey_shifted[] = { - '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', - '\r', 0x1b, '\b', '\t', ' ', '_', '+', '{', '}', - '|', '~', ':', '"', '~', '<', '>', '?' -}; - -static const unsigned char usb_kbd_num_keypad[] = { - '/', '*', '-', '+', '\r', - '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', - '.', 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 -}; +#include /* * NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this @@ -96,21 +47,18 @@ struct usb_kbd_pdata; struct usb_kbd_pdata { uint64_t last_report; - uint64_t last_poll; uint8_t *new; uint8_t old[USB_KBD_BOOT_REPORT_SIZE]; - uint32_t repeat_delay; uint8_t flags; struct poller_struct poller; struct usb_device *usbdev; - struct console_device cdev; - struct kfifo *recv_fifo; int lock; unsigned long intpipe; int intpktsize; int intinterval; struct usb_endpoint_descriptor *ep; int (*do_poll)(struct usb_kbd_pdata *); + struct input_device input; }; static int usb_kbd_int_poll(struct usb_kbd_pdata *data) @@ -127,162 +75,36 @@ static int usb_kbd_cnt_poll(struct usb_kbd_pdata *data) 1, 0, data->new, USB_KBD_BOOT_REPORT_SIZE); } -#define CAPITAL_MASK 0x20 -/* Translate the scancode in ASCII */ -static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode, - unsigned char modifier, int pressed) -{ - int keycode = 0; - - /* Key released */ - if (pressed == 0) { - data->repeat_delay = 0; - return 0; - } - - if (pressed == 2) { - data->repeat_delay++; - if (data->repeat_delay < REPEAT_DELAY) - return 0; - - data->repeat_delay = REPEAT_DELAY; - } - - /* Alphanumeric values */ - if ((scancode > 3) && (scancode <= 0x1d)) { - keycode = scancode - 4 + 'a'; - - if (data->flags & USB_KBD_CAPSLOCK) - keycode &= ~CAPITAL_MASK; - - if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) { - /* Handle CAPSLock + Shift pressed simultaneously */ - if (keycode & CAPITAL_MASK) - keycode &= ~CAPITAL_MASK; - else - keycode |= CAPITAL_MASK; - } - } - - if ((scancode > 0x1d) && (scancode < 0x3a)) { - /* Shift pressed */ - if (modifier & (LEFT_SHIFT | RIGHT_SHIFT)) - keycode = usb_kbd_numkey_shifted[scancode - 0x1e]; - else - 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]; - - if (data->flags & USB_KBD_CTRL) - keycode = scancode - 0x3; - - if (pressed == 1) { - if (scancode == NUM_LOCK) { - data->flags ^= USB_KBD_NUMLOCK; - return 1; - } - - if (scancode == CAPS_LOCK) { - data->flags ^= USB_KBD_CAPSLOCK; - return 1; - } - if (scancode == SCROLL_LOCK) { - data->flags ^= USB_KBD_SCROLLLOCK; - return 1; - } - } - - /* Report keycode if any */ - if (keycode) { - pr_debug("%s: key pressed: '%c'\n", __FUNCTION__, keycode); - kfifo_put(data->recv_fifo, (u_char*)&keycode, sizeof(keycode)); - } - - return 0; -} - -static uint32_t usb_kbd_service_key(struct usb_kbd_pdata *data, int i, int up) -{ - uint32_t res = 0; - uint8_t *new; - uint8_t *old; - - if (up) { - new = data->old; - old = data->new; - } else { - new = data->new; - old = data->old; - } - - 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; -} - -static void usb_kbd_setled(struct usb_kbd_pdata *data) -{ - struct usb_device *usbdev = data->usbdev; - struct usb_interface *iface = &usbdev->config.interface[0]; - uint8_t leds = (uint8_t)(data->flags & USB_KBD_LEDMASK); - - usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), - USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, - 0x200, iface->desc.bInterfaceNumber, &leds, 1, USB_CNTL_TIMEOUT); -} - - -static int usb_kbd_process(struct usb_kbd_pdata *data) -{ - int i, res = 0; - - /* No combo key pressed */ - if (data->new[0] == 0x00) - data->flags &= ~USB_KBD_CTRL; - /* Left or Right Ctrl pressed */ - else if ((data->new[0] == LEFT_CNTR) || (data->new[0] == RIGHT_CNTR)) - data->flags |= USB_KBD_CTRL; - - for (i = 2; i < USB_KBD_BOOT_REPORT_SIZE; i++) { - res |= usb_kbd_service_key(data, i, 0); - res |= usb_kbd_service_key(data, i, 1); - } - - /* Key is still pressed */ - if ((data->new[2] > 3) && (data->old[2] == data->new[2])) - res |= usb_kbd_translate(data, data->new[2], data->new[0], 2); - - if (res == 1) - usb_kbd_setled(data); - - return 1; -} +static const unsigned char usb_kbd_keycode[256] = { + 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, + 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, + 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, + 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106, + 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71, + 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190, + 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113, + 115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0, + 122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113, + 150,158,159,128,136,177,178,176,142,152,173,140 +}; static void usb_kbd_poll(struct poller_struct *poller) { struct usb_kbd_pdata *data = container_of(poller, struct usb_kbd_pdata, poller); struct usb_device *usbdev = data->usbdev; - int diff, tout, ret; + int ret, i; if (data->lock) return; - data->lock = 1; - if (!is_timeout_non_interruptible(data->last_poll, REPEAT_RATE * MSECOND / 2)) - goto exit; - data->last_poll = get_time_ns(); + data->lock = 1; ret = data->do_poll(data); if (ret == -EAGAIN) @@ -293,40 +115,40 @@ static void usb_kbd_poll(struct poller_struct *poller) "usb_submit_int_msg() failed. Keyboard disconnect?\n"); return; } - diff = memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE); - tout = get_time_ns() > data->last_report + REPEAT_RATE * MSECOND; - if (diff || tout) { - data->last_report = get_time_ns(); - if (diff) { - pr_debug("%s: old report: %016llx\n", - __func__, - *((volatile uint64_t *)data->old)); - pr_debug("%s: new report: %016llx\n\n", - __func__, - *((volatile uint64_t *)data->new)); - } - usb_kbd_process(data); - memcpy(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE); - } -exit: - data->lock = 0; -} + if (!memcmp(data->old, data->new, USB_KBD_BOOT_REPORT_SIZE)) + goto exit; -static int usb_kbd_getc(struct console_device *cdev) -{ - int code = 0; - struct usb_kbd_pdata *data = container_of(cdev, struct usb_kbd_pdata, cdev); + pr_debug("%s: new report: %016llx\n", __func__, *((volatile uint64_t *)data->new)); - kfifo_get(data->recv_fifo, (u_char*)&code, sizeof(int)); - return code; -} + for (i = 0; i < 8; i++) + input_report_key_event(&data->input, usb_kbd_keycode[i + 224], (data->new[0] >> i) & 1); -static int usb_kbd_tstc(struct console_device *cdev) -{ - struct usb_kbd_pdata *data = container_of(cdev, struct usb_kbd_pdata, cdev); + for (i = 2; i < 8; i++) { + + if (data->old[i] > 3 && memscan(data->new + 2, data->old[i], 6) == data->new + 8) { + if (usb_kbd_keycode[data->old[i]]) + input_report_key_event(&data->input, usb_kbd_keycode[data->old[i]], 0); + else + dev_err(&usbdev->dev, + "Unknown key (scancode %#x) released.\n", + data->old[i]); + } + + if (data->new[i] > 3 && memscan(data->old + 2, data->new[i], 6) == data->old + 8) { + if (usb_kbd_keycode[data->new[i]]) + input_report_key_event(&data->input, usb_kbd_keycode[data->new[i]], 1); + else + dev_err(&usbdev->dev, + "Unknown key (scancode %#x) pressed.\n", + data->new[i]); + } + } - return (kfifo_len(data->recv_fifo) == 0) ? 0 : 1; + memcpy(data->old, data->new, 8); + +exit: + data->lock = 0; } static int usb_kbd_probe(struct usb_device *usbdev, @@ -335,7 +157,6 @@ static int usb_kbd_probe(struct usb_device *usbdev, int ret; struct usb_interface *iface = &usbdev->config.interface[0]; struct usb_kbd_pdata *data; - struct console_device *cdev; dev_info(&usbdev->dev, "USB keyboard found\n"); dev_dbg(&usbdev->dev, "Debug enabled\n"); @@ -349,7 +170,6 @@ static int usb_kbd_probe(struct usb_device *usbdev, data = xzalloc(sizeof(struct usb_kbd_pdata)); usbdev->drv_data = data; - data->recv_fifo = kfifo_alloc(USB_KBD_FIFO_SIZE); data->new = dma_alloc(USB_KBD_BOOT_REPORT_SIZE); data->usbdev = usbdev; @@ -371,7 +191,6 @@ static int usb_kbd_probe(struct usb_device *usbdev, ret = data->do_poll(data); if (ret < 0) { /* no luck */ - kfifo_free(data->recv_fifo); dma_free(data->new); free(data); return ret; @@ -380,16 +199,10 @@ static int usb_kbd_probe(struct usb_device *usbdev, } else dev_dbg(&usbdev->dev, "poll keyboard via int ep\n"); - cdev = &data->cdev; - usbdev->dev.type_data = cdev; - cdev->dev = &usbdev->dev; - cdev->tstc = usb_kbd_tstc; - cdev->getc = usb_kbd_getc; - - console_register(cdev); - console_set_active(cdev, CONSOLE_STDIN); + input_device_register(&data->input); data->poller.func = usb_kbd_poll; + return poller_register(&data->poller); } @@ -398,8 +211,7 @@ static void usb_kbd_disconnect(struct usb_device *usbdev) struct usb_kbd_pdata *data = usbdev->drv_data; poller_unregister(&data->poller); - console_unregister(&data->cdev); - kfifo_free(data->recv_fifo); + input_device_unregister(&data->input); dma_free(data->new); free(data); } -- 2.6.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox