Rev 4148 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4078 | decky | 1 | /* |
| 2 | * Copyright (c) 2009 Martin Decky |
||
| 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 | |||
| 29 | /** @addtogroup genarch |
||
| 30 | * @{ |
||
| 31 | */ |
||
| 32 | /** |
||
| 33 | * @file |
||
| 34 | * @brief Dummy serial line input. |
||
| 35 | */ |
||
| 36 | |||
| 37 | #include <genarch/drivers/dsrln/dsrlnin.h> |
||
| 38 | #include <console/chardev.h> |
||
| 39 | #include <mm/slab.h> |
||
| 40 | #include <arch/asm.h> |
||
| 4148 | decky | 41 | #include <ddi/device.h> |
| 4078 | decky | 42 | |
| 4119 | decky | 43 | static indev_operations_t kbrdin_ops = { |
| 4078 | decky | 44 | .poll = NULL |
| 45 | }; |
||
| 46 | |||
| 47 | static irq_ownership_t dsrlnin_claim(irq_t *irq) |
||
| 48 | { |
||
| 49 | return IRQ_ACCEPT; |
||
| 50 | } |
||
| 51 | |||
| 52 | static void dsrlnin_irq_handler(irq_t *irq) |
||
| 53 | { |
||
| 54 | dsrlnin_instance_t *instance = irq->instance; |
||
| 55 | dsrlnin_t *dev = instance->dsrlnin; |
||
| 56 | |||
| 57 | indev_push_character(&instance->kbrdin, pio_read_8(&dev->data)); |
||
| 58 | } |
||
| 59 | |||
| 4148 | decky | 60 | indev_t *dsrlnin_init(dsrlnin_t *dev, inr_t inr) |
| 4078 | decky | 61 | { |
| 62 | dsrlnin_instance_t *instance |
||
| 63 | = malloc(sizeof(dsrlnin_instance_t), FRAME_ATOMIC); |
||
| 64 | if (!instance) |
||
| 65 | return NULL; |
||
| 66 | |||
| 67 | indev_initialize("dsrlnin", &instance->kbrdin, &kbrdin_ops); |
||
| 68 | |||
| 69 | instance->dsrlnin = dev; |
||
| 70 | |||
| 71 | irq_initialize(&instance->irq); |
||
| 4148 | decky | 72 | instance->irq.devno = device_assign_devno(); |
| 4078 | decky | 73 | instance->irq.inr = inr; |
| 74 | instance->irq.claim = dsrlnin_claim; |
||
| 75 | instance->irq.handler = dsrlnin_irq_handler; |
||
| 76 | instance->irq.instance = instance; |
||
| 77 | irq_register(&instance->irq); |
||
| 78 | |||
| 79 | return &instance->kbrdin; |
||
| 80 | } |
||
| 81 | |||
| 82 | /** @} |
||
| 83 | */ |