Rev 3234 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 575 | palkovsky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Ondrej Palkovsky |
| 575 | palkovsky | 3 | * All rights reserved. |
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 3844 | decky | 29 | /** @addtogroup mips32 |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
||
| 32 | /** @file |
||
| 33 | */ |
||
| 34 | |||
| 575 | palkovsky | 35 | #include <interrupt.h> |
| 2089 | decky | 36 | #include <ipc/irq.h> |
| 575 | palkovsky | 37 | #include <console/chardev.h> |
| 38 | #include <arch/drivers/msim.h> |
||
| 39 | #include <arch/cp0.h> |
||
| 606 | palkovsky | 40 | #include <console/console.h> |
| 1936 | decky | 41 | #include <sysinfo/sysinfo.h> |
| 3234 | decky | 42 | #include <ddi/ddi.h> |
| 575 | palkovsky | 43 | |
| 3234 | decky | 44 | static parea_t msim_parea; |
| 575 | palkovsky | 45 | static chardev_t console; |
| 1936 | decky | 46 | static irq_t msim_irq; |
| 575 | palkovsky | 47 | |
| 48 | static void msim_write(chardev_t *dev, const char ch); |
||
| 49 | static void msim_enable(chardev_t *dev); |
||
| 50 | static void msim_disable(chardev_t *dev); |
||
| 607 | palkovsky | 51 | static char msim_do_read(chardev_t *dev); |
| 575 | palkovsky | 52 | |
| 53 | static chardev_operations_t msim_ops = { |
||
| 54 | .resume = msim_enable, |
||
| 55 | .suspend = msim_disable, |
||
| 607 | palkovsky | 56 | .write = msim_write, |
| 57 | .read = msim_do_read, |
||
| 575 | palkovsky | 58 | }; |
| 59 | |||
| 60 | /** Putchar that works with MSIM & gxemul */ |
||
| 3844 | decky | 61 | void msim_write(chardev_t *dev, const char ch, bool silent) |
| 575 | palkovsky | 62 | { |
| 3844 | decky | 63 | if (!silent) |
| 64 | *((char *) MSIM_VIDEORAM) = ch; |
||
| 575 | palkovsky | 65 | } |
| 66 | |||
| 67 | /* Called from getc(). */ |
||
| 68 | void msim_enable(chardev_t *dev) |
||
| 69 | { |
||
| 70 | cp0_unmask_int(MSIM_KBD_IRQ); |
||
| 71 | } |
||
| 72 | |||
| 73 | /* Called from getc(). */ |
||
| 74 | void msim_disable(chardev_t *dev) |
||
| 75 | { |
||
| 76 | cp0_mask_int(MSIM_KBD_IRQ); |
||
| 77 | } |
||
| 78 | |||
| 588 | palkovsky | 79 | #include <print.h> |
| 607 | palkovsky | 80 | /** Read character using polling, assume interrupts disabled */ |
| 81 | static char msim_do_read(chardev_t *dev) |
||
| 82 | { |
||
| 83 | char ch; |
||
| 3844 | decky | 84 | |
| 607 | palkovsky | 85 | while (1) { |
| 86 | ch = *((volatile char *) MSIM_KBD_ADDRESS); |
||
| 87 | if (ch) { |
||
| 88 | if (ch == '\r') |
||
| 89 | return '\n'; |
||
| 90 | if (ch == 0x7f) |
||
| 91 | return '\b'; |
||
| 92 | return ch; |
||
| 93 | } |
||
| 94 | } |
||
| 95 | } |
||
| 96 | |||
| 575 | palkovsky | 97 | /** Process keyboard interrupt. */ |
| 1936 | decky | 98 | static void msim_irq_handler(irq_t *irq, void *arg, ...) |
| 575 | palkovsky | 99 | { |
| 1936 | decky | 100 | if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox)) |
| 101 | ipc_irq_send_notif(irq); |
||
| 102 | else { |
||
| 103 | char ch = 0; |
||
| 104 | |||
| 3844 | decky | 105 | ch = *((char *) MSIM_KBD_ADDRESS); |
| 106 | if (ch =='\r') |
||
| 107 | ch = '\n'; |
||
| 108 | if (ch == 0x7f) |
||
| 109 | ch = '\b'; |
||
| 110 | chardev_push_character(&console, ch); |
||
| 1936 | decky | 111 | } |
| 575 | palkovsky | 112 | } |
| 113 | |||
| 1936 | decky | 114 | static irq_ownership_t msim_claim(void) |
| 575 | palkovsky | 115 | { |
| 1936 | decky | 116 | return IRQ_ACCEPT; |
| 575 | palkovsky | 117 | } |
| 1474 | palkovsky | 118 | |
| 119 | void msim_kbd_grab(void) |
||
| 120 | { |
||
| 1944 | jermar | 121 | ipl_t ipl = interrupts_disable(); |
| 122 | spinlock_lock(&msim_irq.lock); |
||
| 1936 | decky | 123 | msim_irq.notif_cfg.notify = false; |
| 1944 | jermar | 124 | spinlock_unlock(&msim_irq.lock); |
| 125 | interrupts_restore(ipl); |
||
| 1474 | palkovsky | 126 | } |
| 1936 | decky | 127 | |
| 1474 | palkovsky | 128 | void msim_kbd_release(void) |
| 129 | { |
||
| 1944 | jermar | 130 | ipl_t ipl = interrupts_disable(); |
| 131 | spinlock_lock(&msim_irq.lock); |
||
| 1936 | decky | 132 | if (msim_irq.notif_cfg.answerbox) |
| 133 | msim_irq.notif_cfg.notify = true; |
||
| 1944 | jermar | 134 | spinlock_unlock(&msim_irq.lock); |
| 135 | interrupts_restore(ipl); |
||
| 1474 | palkovsky | 136 | } |
| 1702 | cejka | 137 | |
| 1936 | decky | 138 | |
| 139 | /* Return console object representing msim console */ |
||
| 140 | void msim_console(devno_t devno) |
||
| 141 | { |
||
| 142 | chardev_initialize("msim_console", &console, &msim_ops); |
||
| 143 | stdin = &console; |
||
| 144 | stdout = &console; |
||
| 145 | |||
| 146 | irq_initialize(&msim_irq); |
||
| 147 | msim_irq.devno = devno; |
||
| 148 | msim_irq.inr = MSIM_KBD_IRQ; |
||
| 149 | msim_irq.claim = msim_claim; |
||
| 150 | msim_irq.handler = msim_irq_handler; |
||
| 151 | irq_register(&msim_irq); |
||
| 152 | |||
| 153 | cp0_unmask_int(MSIM_KBD_IRQ); |
||
| 154 | |||
| 155 | sysinfo_set_item_val("kbd", NULL, true); |
||
| 156 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
||
| 157 | sysinfo_set_item_val("kbd.inr", NULL, MSIM_KBD_IRQ); |
||
| 158 | sysinfo_set_item_val("kbd.address.virtual", NULL, MSIM_KBD_ADDRESS); |
||
| 3234 | decky | 159 | |
| 160 | msim_parea.pbase = KA2PA(MSIM_VIDEORAM); |
||
| 161 | msim_parea.vbase = MSIM_VIDEORAM; |
||
| 162 | msim_parea.frames = 1; |
||
| 163 | msim_parea.cacheable = false; |
||
| 164 | ddi_parea_register(&msim_parea); |
||
| 165 | |||
| 166 | sysinfo_set_item_val("fb", NULL, true); |
||
| 167 | sysinfo_set_item_val("fb.kind", NULL, 3); |
||
| 168 | sysinfo_set_item_val("fb.address.physical", NULL, KA2PA(MSIM_VIDEORAM)); |
||
| 1936 | decky | 169 | } |
| 170 | |||
| 1888 | jermar | 171 | /** @} |
| 1702 | cejka | 172 | */ |