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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2009 Jakub Jermar |
2 | * Copyright (c) 2009 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup genarch |
29 | /** @addtogroup genarch |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | /** |
32 | /** |
| 33 | * @file |
33 | * @file |
| 34 | * @brief Zilog 8530 serial port driver. |
34 | * @brief Zilog 8530 serial controller driver. |
| 35 | */ |
35 | */ |
| 36 | 36 | ||
| 37 | #include <genarch/kbd/z8530.h> |
37 | #include <genarch/drivers/z8530/z8530.h> |
| 38 | #include <genarch/kbd/key.h> |
- | |
| 39 | #include <genarch/kbd/scanc.h> |
- | |
| 40 | #include <genarch/kbd/scanc_sun.h> |
- | |
| 41 | #include <arch/drivers/kbd.h> |
- | |
| 42 | #include <console/console.h> |
- | |
| 43 | #include <console/chardev.h> |
38 | #include <console/chardev.h> |
| 44 | #include <ddi/irq.h> |
39 | #include <ddi/irq.h> |
| 45 | #include <arch/asm.h> |
40 | #include <arch/asm.h> |
| 46 | #include <mm/slab.h> |
41 | #include <mm/slab.h> |
| 47 | 42 | ||
| 48 | static inline void z8530_write(ioport8_t *ctl, uint8_t reg, uint8_t val) |
43 | static inline void z8530_write(ioport8_t *ctl, uint8_t reg, uint8_t val) |
| 49 | { |
44 | { |
| 50 | /* |
45 | /* |
| 51 | * Registers 8-15 will automatically issue the Point High |
46 | * Registers 8-15 will automatically issue the Point High |
| 52 | * command as their bit 3 is 1. |
47 | * command as their bit 3 is 1. |
| 53 | */ |
48 | */ |
| 54 | pio_write_8(ctl, reg); /* select register */ |
49 | pio_write_8(ctl, reg); /* select register */ |
| 55 | pio_write_8(ctl, val); /* write value */ |
50 | pio_write_8(ctl, val); /* write value */ |
| 56 | } |
51 | } |
| 57 | 52 | ||
| 58 | static inline uint8_t z8530_read(ioport8_t *ctl, uint8_t reg) |
53 | static inline uint8_t z8530_read(ioport8_t *ctl, uint8_t reg) |
| 59 | { |
54 | { |
| 60 | /* |
55 | /* |
| 61 | * Registers 8-15 will automatically issue the Point High |
56 | * Registers 8-15 will automatically issue the Point High |
| 62 | * command as their bit 3 is 1. |
57 | * command as their bit 3 is 1. |
| 63 | */ |
58 | */ |
| 64 | pio_write_8(ctl, reg); /* select register */ |
59 | pio_write_8(ctl, reg); /* select register */ |
| 65 | return pio_read_8(ctl); |
60 | return pio_read_8(ctl); |
| 66 | } |
61 | } |
| 67 | 62 | ||
| 68 | /* |
- | |
| 69 | * These codes read from z8530 data register are silently ignored. |
- | |
| 70 | */ |
- | |
| 71 | #define IGNORE_CODE 0x7f /* all keys up */ |
- | |
| 72 | - | ||
| 73 | static void z8530_suspend(chardev_t *); |
- | |
| 74 | static void z8530_resume(chardev_t *); |
- | |
| 75 | - | ||
| 76 | static chardev_operations_t ops = { |
- | |
| 77 | .suspend = z8530_suspend, |
- | |
| 78 | .resume = z8530_resume, |
- | |
| 79 | }; |
- | |
| 80 | - | ||
| 81 | /** Initialize z8530. */ |
63 | /** Initialize z8530. */ |
| 82 | bool |
64 | bool |
| 83 | z8530_init(z8530_t *dev, devno_t devno, inr_t inr, cir_t cir, void *cir_arg) |
65 | z8530_init(z8530_t *dev, devno_t devno, inr_t inr, cir_t cir, void *cir_arg, |
| - | 66 | chardev_t *devout) |
|
| 84 | { |
67 | { |
| 85 | z8530_instance_t *instance; |
68 | z8530_instance_t *instance; |
| 86 | 69 | ||
| 87 | chardev_initialize("z8530_kbd", &kbrd, &ops); |
- | |
| 88 | stdin = &kbrd; |
- | |
| 89 | - | ||
| 90 | instance = malloc(sizeof(z8530_instance_t), FRAME_ATOMIC); |
70 | instance = malloc(sizeof(z8530_instance_t), FRAME_ATOMIC); |
| 91 | if (!instance) |
71 | if (!instance) |
| 92 | return false; |
72 | return false; |
| 93 | 73 | ||
| 94 | instance->devno = devno; |
74 | instance->devno = devno; |
| 95 | instance->z8530 = dev; |
75 | instance->z8530 = dev; |
| - | 76 | instance->devout = devout; |
|
| 96 | 77 | ||
| 97 | irq_initialize(&instance->irq); |
78 | irq_initialize(&instance->irq); |
| 98 | instance->irq.devno = devno; |
79 | instance->irq.devno = devno; |
| 99 | instance->irq.inr = inr; |
80 | instance->irq.inr = inr; |
| 100 | instance->irq.claim = z8530_claim; |
81 | instance->irq.claim = z8530_claim; |
| 101 | instance->irq.handler = z8530_irq_handler; |
82 | instance->irq.handler = z8530_irq_handler; |
| 102 | instance->irq.instance = instance; |
83 | instance->irq.instance = instance; |
| 103 | instance->irq.cir = cir; |
84 | instance->irq.cir = cir; |
| 104 | instance->irq.cir_arg = cir_arg; |
85 | instance->irq.cir_arg = cir_arg; |
| 105 | irq_register(&instance->irq); |
86 | irq_register(&instance->irq); |
| 106 | 87 | ||
| 107 | (void) z8530_read(&dev->ctl_a, RR8); |
88 | (void) z8530_read(&dev->ctl_a, RR8); |
| 108 | 89 | ||
| 109 | /* |
90 | /* |
| 110 | * Clear any pending TX interrupts or we never manage |
91 | * Clear any pending TX interrupts or we never manage |
| 111 | * to set FHC UART interrupt state to idle. |
92 | * to set FHC UART interrupt state to idle. |
| 112 | */ |
93 | */ |
| 113 | z8530_write(&dev->ctl_a, WR0, WR0_TX_IP_RST); |
94 | z8530_write(&dev->ctl_a, WR0, WR0_TX_IP_RST); |
| 114 | 95 | ||
| 115 | /* interrupt on all characters */ |
96 | /* interrupt on all characters */ |
| 116 | z8530_write(&dev->ctl_a, WR1, WR1_IARCSC); |
97 | z8530_write(&dev->ctl_a, WR1, WR1_IARCSC); |
| 117 | 98 | ||
| 118 | /* 8 bits per character and enable receiver */ |
99 | /* 8 bits per character and enable receiver */ |
| 119 | z8530_write(&dev->ctl_a, WR3, WR3_RX8BITSCH | WR3_RX_ENABLE); |
100 | z8530_write(&dev->ctl_a, WR3, WR3_RX8BITSCH | WR3_RX_ENABLE); |
| 120 | 101 | ||
| 121 | /* Master Interrupt Enable. */ |
102 | /* Master Interrupt Enable. */ |
| 122 | z8530_write(&dev->ctl_a, WR9, WR9_MIE); |
103 | z8530_write(&dev->ctl_a, WR9, WR9_MIE); |
| 123 | 104 | ||
| 124 | return true; |
105 | return true; |
| 125 | } |
106 | } |
| 126 | 107 | ||
| 127 | /* Called from getc(). */ |
- | |
| 128 | void z8530_resume(chardev_t *d) |
- | |
| 129 | { |
- | |
| 130 | } |
- | |
| 131 | - | ||
| 132 | /* Called from getc(). */ |
- | |
| 133 | void z8530_suspend(chardev_t *d) |
- | |
| 134 | { |
- | |
| 135 | } |
- | |
| 136 | - | ||
| 137 | irq_ownership_t z8530_claim(irq_t *irq) |
108 | irq_ownership_t z8530_claim(irq_t *irq) |
| 138 | { |
109 | { |
| 139 | z8530_instance_t *instance = irq->instance; |
110 | z8530_instance_t *instance = irq->instance; |
| 140 | z8530_t *dev = instance->z8530; |
111 | z8530_t *dev = instance->z8530; |
| 141 | 112 | ||
| 142 | return (z8530_read(&dev->ctl_a, RR0) & RR0_RCA); |
113 | if (z8530_read(&dev->ctl_a, RR0) & RR0_RCA) |
| - | 114 | return IRQ_ACCEPT; |
|
| - | 115 | else |
|
| - | 116 | return IRQ_DECLINE; |
|
| 143 | } |
117 | } |
| 144 | 118 | ||
| 145 | void z8530_irq_handler(irq_t *irq) |
119 | void z8530_irq_handler(irq_t *irq) |
| 146 | { |
120 | { |
| 147 | z8530_instance_t *instance = irq->instance; |
121 | z8530_instance_t *instance = irq->instance; |
| 148 | z8530_t *dev = instance->z8530; |
122 | z8530_t *dev = instance->z8530; |
| 149 | uint8_t x; |
123 | uint8_t x; |
| 150 | 124 | ||
| 151 | if (z8530_read(&dev->ctl_a, RR0) & RR0_RCA) { |
125 | if (z8530_read(&dev->ctl_a, RR0) & RR0_RCA) { |
| 152 | x = z8530_read(&dev->ctl_a, RR8); |
126 | x = z8530_read(&dev->ctl_a, RR8); |
| 153 | if (x != IGNORE_CODE) { |
- | |
| 154 | if (x & KEY_RELEASE) |
127 | if (instance->devout) |
| 155 | key_released(x ^ KEY_RELEASE); |
128 | chardev_push_character(instance->devout, x); |
| 156 | else |
- | |
| 157 | key_pressed(x); |
- | |
| 158 | } |
- | |
| 159 | } |
129 | } |
| 160 | } |
130 | } |
| 161 | 131 | ||
| 162 | /** @} |
132 | /** @} |
| 163 | */ |
133 | */ |
| 164 | 134 | ||