diff options
Diffstat (limited to 'drivers/misc/ibmasm/remote.c')
| -rw-r--r-- | drivers/misc/ibmasm/remote.c | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/drivers/misc/ibmasm/remote.c b/drivers/misc/ibmasm/remote.c new file mode 100644 index 000000000..ec816d3b3 --- /dev/null +++ b/drivers/misc/ibmasm/remote.c @@ -0,0 +1,268 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * IBM ASM Service Processor Device Driver + * + * Copyright (C) IBM Corporation, 2004 + * + * Authors: Max Asböck <amax@us.ibm.com> + * Vernon Mauery <vernux@us.ibm.com> + */ + +/* Remote mouse and keyboard event handling functions */ + +#include <linux/pci.h> +#include "ibmasm.h" +#include "remote.h" + +#define MOUSE_X_MAX 1600 +#define MOUSE_Y_MAX 1200 + +static const unsigned short xlate_high[XLATE_SIZE] = { + [KEY_SYM_ENTER & 0xff] = KEY_ENTER, + [KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH, + [KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK, + [KEY_SYM_KPMINUS & 0xff] = KEY_KPMINUS, + [KEY_SYM_KPDOT & 0xff] = KEY_KPDOT, + [KEY_SYM_KPPLUS & 0xff] = KEY_KPPLUS, + [KEY_SYM_KP0 & 0xff] = KEY_KP0, + [KEY_SYM_KP1 & 0xff] = KEY_KP1, + [KEY_SYM_KP2 & 0xff] = KEY_KP2, [KEY_SYM_KPDOWN & 0xff] = KEY_KP2, + [KEY_SYM_KP3 & 0xff] = KEY_KP3, + [KEY_SYM_KP4 & 0xff] = KEY_KP4, [KEY_SYM_KPLEFT & 0xff] = KEY_KP4, + [KEY_SYM_KP5 & 0xff] = KEY_KP5, + [KEY_SYM_KP6 & 0xff] = KEY_KP6, [KEY_SYM_KPRIGHT & 0xff] = KEY_KP6, + [KEY_SYM_KP7 & 0xff] = KEY_KP7, + [KEY_SYM_KP8 & 0xff] = KEY_KP8, [KEY_SYM_KPUP & 0xff] = KEY_KP8, + [KEY_SYM_KP9 & 0xff] = KEY_KP9, + [KEY_SYM_BK_SPC & 0xff] = KEY_BACKSPACE, + [KEY_SYM_TAB & 0xff] = KEY_TAB, + [KEY_SYM_CTRL & 0xff] = KEY_LEFTCTRL, + [KEY_SYM_ALT & 0xff] = KEY_LEFTALT, + [KEY_SYM_INSERT & 0xff] = KEY_INSERT, + [KEY_SYM_DELETE & 0xff] = KEY_DELETE, + [KEY_SYM_SHIFT & 0xff] = KEY_LEFTSHIFT, + [KEY_SYM_UARROW & 0xff] = KEY_UP, + [KEY_SYM_DARROW & 0xff] = KEY_DOWN, + [KEY_SYM_LARROW & 0xff] = KEY_LEFT, + [KEY_SYM_RARROW & 0xff] = KEY_RIGHT, + [KEY_SYM_ESCAPE & 0xff] = KEY_ESC, + [KEY_SYM_PAGEUP & 0xff] = KEY_PAGEUP, + [KEY_SYM_PAGEDOWN & 0xff] = KEY_PAGEDOWN, + [KEY_SYM_HOME & 0xff] = KEY_HOME, + [KEY_SYM_END & 0xff] = KEY_END, + [KEY_SYM_F1 & 0xff] = KEY_F1, + [KEY_SYM_F2 & 0xff] = KEY_F2, + [KEY_SYM_F3 & 0xff] = KEY_F3, + [KEY_SYM_F4 & 0xff] = KEY_F4, + [KEY_SYM_F5 & 0xff] = KEY_F5, + [KEY_SYM_F6 & 0xff] = KEY_F6, + [KEY_SYM_F7 & 0xff] = KEY_F7, + [KEY_SYM_F8 & 0xff] = KEY_F8, + [KEY_SYM_F9 & 0xff] = KEY_F9, + [KEY_SYM_F10 & 0xff] = KEY_F10, + [KEY_SYM_F11 & 0xff] = KEY_F11, + [KEY_SYM_F12 & 0xff] = KEY_F12, + [KEY_SYM_CAP_LOCK & 0xff] = KEY_CAPSLOCK, + [KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK, + [KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK, +}; + +static const unsigned short xlate[XLATE_SIZE] = { + [NO_KEYCODE] = KEY_RESERVED, + [KEY_SYM_SPACE] = KEY_SPACE, + [KEY_SYM_TILDE] = KEY_GRAVE, [KEY_SYM_BKTIC] = KEY_GRAVE, + [KEY_SYM_ONE] = KEY_1, [KEY_SYM_BANG] = KEY_1, + [KEY_SYM_TWO] = KEY_2, [KEY_SYM_AT] = KEY_2, + [KEY_SYM_THREE] = KEY_3, [KEY_SYM_POUND] = KEY_3, + [KEY_SYM_FOUR] = KEY_4, [KEY_SYM_DOLLAR] = KEY_4, + [KEY_SYM_FIVE] = KEY_5, [KEY_SYM_PERCENT] = KEY_5, + [KEY_SYM_SIX] = KEY_6, [KEY_SYM_CARAT] = KEY_6, + [KEY_SYM_SEVEN] = KEY_7, [KEY_SYM_AMPER] = KEY_7, + [KEY_SYM_EIGHT] = KEY_8, [KEY_SYM_STAR] = KEY_8, + [KEY_SYM_NINE] = KEY_9, [KEY_SYM_LPAREN] = KEY_9, + [KEY_SYM_ZERO] = KEY_0, [KEY_SYM_RPAREN] = KEY_0, + [KEY_SYM_MINUS] = KEY_MINUS, [KEY_SYM_USCORE] = KEY_MINUS, + [KEY_SYM_EQUAL] = KEY_EQUAL, [KEY_SYM_PLUS] = KEY_EQUAL, + [KEY_SYM_LBRKT] = KEY_LEFTBRACE, [KEY_SYM_LCURLY] = KEY_LEFTBRACE, + [KEY_SYM_RBRKT] = KEY_RIGHTBRACE, [KEY_SYM_RCURLY] = KEY_RIGHTBRACE, + [KEY_SYM_SLASH] = KEY_BACKSLASH, [KEY_SYM_PIPE] = KEY_BACKSLASH, + [KEY_SYM_TIC] = KEY_APOSTROPHE, [KEY_SYM_QUOTE] = KEY_APOSTROPHE, + [KEY_SYM_SEMIC] = KEY_SEMICOLON, [KEY_SYM_COLON] = KEY_SEMICOLON, + [KEY_SYM_COMMA] = KEY_COMMA, [KEY_SYM_LT] = KEY_COMMA, + [KEY_SYM_PERIOD] = KEY_DOT, [KEY_SYM_GT] = KEY_DOT, + [KEY_SYM_BSLASH] = KEY_SLASH, [KEY_SYM_QMARK] = KEY_SLASH, + [KEY_SYM_A] = KEY_A, [KEY_SYM_a] = KEY_A, + [KEY_SYM_B] = KEY_B, [KEY_SYM_b] = KEY_B, + [KEY_SYM_C] = KEY_C, [KEY_SYM_c] = KEY_C, + [KEY_SYM_D] = KEY_D, [KEY_SYM_d] = KEY_D, + [KEY_SYM_E] = KEY_E, [KEY_SYM_e] = KEY_E, + [KEY_SYM_F] = KEY_F, [KEY_SYM_f] = KEY_F, + [KEY_SYM_G] = KEY_G, [KEY_SYM_g] = KEY_G, + [KEY_SYM_H] = KEY_H, [KEY_SYM_h] = KEY_H, + [KEY_SYM_I] = KEY_I, [KEY_SYM_i] = KEY_I, + [KEY_SYM_J] = KEY_J, [KEY_SYM_j] = KEY_J, + [KEY_SYM_K] = KEY_K, [KEY_SYM_k] = KEY_K, + [KEY_SYM_L] = KEY_L, [KEY_SYM_l] = KEY_L, + [KEY_SYM_M] = KEY_M, [KEY_SYM_m] = KEY_M, + [KEY_SYM_N] = KEY_N, [KEY_SYM_n] = KEY_N, + [KEY_SYM_O] = KEY_O, [KEY_SYM_o] = KEY_O, + [KEY_SYM_P] = KEY_P, [KEY_SYM_p] = KEY_P, + [KEY_SYM_Q] = KEY_Q, [KEY_SYM_q] = KEY_Q, + [KEY_SYM_R] = KEY_R, [KEY_SYM_r] = KEY_R, + [KEY_SYM_S] = KEY_S, [KEY_SYM_s] = KEY_S, + [KEY_SYM_T] = KEY_T, [KEY_SYM_t] = KEY_T, + [KEY_SYM_U] = KEY_U, [KEY_SYM_u] = KEY_U, + [KEY_SYM_V] = KEY_V, [KEY_SYM_v] = KEY_V, + [KEY_SYM_W] = KEY_W, [KEY_SYM_w] = KEY_W, + [KEY_SYM_X] = KEY_X, [KEY_SYM_x] = KEY_X, + [KEY_SYM_Y] = KEY_Y, [KEY_SYM_y] = KEY_Y, + [KEY_SYM_Z] = KEY_Z, [KEY_SYM_z] = KEY_Z, +}; + +static void print_input(struct remote_input *input) +{ + if (input->type == INPUT_TYPE_MOUSE) { + unsigned char buttons = input->mouse_buttons; + dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n", + input->data.mouse.x, input->data.mouse.y, + (buttons) ? " -- buttons:" : "", + (buttons & REMOTE_BUTTON_LEFT) ? "left " : "", + (buttons & REMOTE_BUTTON_MIDDLE) ? "middle " : "", + (buttons & REMOTE_BUTTON_RIGHT) ? "right" : "" + ); + } else { + dbg("remote keypress (code, flag, down):" + "%d (0x%x) [0x%x] [0x%x]\n", + input->data.keyboard.key_code, + input->data.keyboard.key_code, + input->data.keyboard.key_flag, + input->data.keyboard.key_down + ); + } +} + +static void send_mouse_event(struct input_dev *dev, struct remote_input *input) +{ + unsigned char buttons = input->mouse_buttons; + + input_report_abs(dev, ABS_X, input->data.mouse.x); + input_report_abs(dev, ABS_Y, input->data.mouse.y); + input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT); + input_report_key(dev, BTN_MIDDLE, buttons & REMOTE_BUTTON_MIDDLE); + input_report_key(dev, BTN_RIGHT, buttons & REMOTE_BUTTON_RIGHT); + input_sync(dev); +} + +static void send_keyboard_event(struct input_dev *dev, + struct remote_input *input) +{ + unsigned int key; + unsigned short code = input->data.keyboard.key_code; + + if (code & 0xff00) + key = xlate_high[code & 0xff]; + else + key = xlate[code]; + input_report_key(dev, key, input->data.keyboard.key_down); + input_sync(dev); +} + +void ibmasm_handle_mouse_interrupt(struct service_processor *sp) +{ + unsigned long reader; + unsigned long writer; + struct remote_input input; + + reader = get_queue_reader(sp); + writer = get_queue_writer(sp); + + while (reader != writer) { + memcpy_fromio(&input, get_queue_entry(sp, reader), + sizeof(struct remote_input)); + + print_input(&input); + if (input.type == INPUT_TYPE_MOUSE) { + send_mouse_event(sp->remote.mouse_dev, &input); + } else if (input.type == INPUT_TYPE_KEYBOARD) { + send_keyboard_event(sp->remote.keybd_dev, &input); + } else + break; + + reader = advance_queue_reader(sp, reader); + writer = get_queue_writer(sp); + } +} + +int ibmasm_init_remote_input_dev(struct service_processor *sp) +{ + /* set up the mouse input device */ + struct input_dev *mouse_dev, *keybd_dev; + struct pci_dev *pdev = to_pci_dev(sp->dev); + int error = -ENOMEM; + int i; + + sp->remote.mouse_dev = mouse_dev = input_allocate_device(); + sp->remote.keybd_dev = keybd_dev = input_allocate_device(); + + if (!mouse_dev || !keybd_dev) + goto err_free_devices; + + mouse_dev->id.bustype = BUS_PCI; + mouse_dev->id.vendor = pdev->vendor; + mouse_dev->id.product = pdev->device; + mouse_dev->id.version = 1; + mouse_dev->dev.parent = sp->dev; + mouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + mouse_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | + BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE); + set_bit(BTN_TOUCH, mouse_dev->keybit); + mouse_dev->name = "ibmasm RSA I remote mouse"; + input_set_abs_params(mouse_dev, ABS_X, 0, MOUSE_X_MAX, 0, 0); + input_set_abs_params(mouse_dev, ABS_Y, 0, MOUSE_Y_MAX, 0, 0); + + keybd_dev->id.bustype = BUS_PCI; + keybd_dev->id.vendor = pdev->vendor; + keybd_dev->id.product = pdev->device; + keybd_dev->id.version = 2; + keybd_dev->dev.parent = sp->dev; + keybd_dev->evbit[0] = BIT_MASK(EV_KEY); + keybd_dev->name = "ibmasm RSA I remote keyboard"; + + for (i = 0; i < XLATE_SIZE; i++) { + if (xlate_high[i]) + set_bit(xlate_high[i], keybd_dev->keybit); + if (xlate[i]) + set_bit(xlate[i], keybd_dev->keybit); + } + + error = input_register_device(mouse_dev); + if (error) + goto err_free_devices; + + error = input_register_device(keybd_dev); + if (error) + goto err_unregister_mouse_dev; + + enable_mouse_interrupts(sp); + + printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n", sp->number); + + return 0; + + err_unregister_mouse_dev: + input_unregister_device(mouse_dev); + mouse_dev = NULL; /* so we don't try to free it again below */ + err_free_devices: + input_free_device(mouse_dev); + input_free_device(keybd_dev); + + return error; +} + +void ibmasm_free_remote_input_dev(struct service_processor *sp) +{ + disable_mouse_interrupts(sp); + input_unregister_device(sp->remote.mouse_dev); + input_unregister_device(sp->remote.keybd_dev); +} + |