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1 | /* |
1 | /* |
2 | * Copyright (c) 2005-2007 Ondrej Palkovsky, Michal Kebrt, Petr Stepan |
2 | * Copyright (c) 2007 Michal Kebrt, Petr Stepan |
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: |
Line 38... | Line 38... | ||
38 | #include <arch/drivers/gxemul.h> |
38 | #include <arch/drivers/gxemul.h> |
39 | #include <console/console.h> |
39 | #include <console/console.h> |
40 | #include <sysinfo/sysinfo.h> |
40 | #include <sysinfo/sysinfo.h> |
41 | #include <print.h> |
41 | #include <print.h> |
42 | #include <ddi/device.h> |
42 | #include <ddi/device.h> |
- | 43 | #include <mm/page.h> |
|
43 | 44 | ||
44 | /** Address of devices. */ |
45 | /** Address of devices. */ |
45 | #define GXEMUL_VIDEORAM 0x10000000 |
46 | #define GXEMUL_VIDEORAM 0x10000000 |
46 | #define GXEMUL_KBD_ADDRESS 0x10000000 |
47 | #define GXEMUL_KBD 0x10000000 |
47 | #define GXEMUL_RTC 0x15000000 |
48 | #define GXEMUL_RTC 0x15000000 |
48 | #define GXEMUL_RTC_FREQ 0x15000100 |
49 | #define GXEMUL_RTC_FREQ_OFFSET 0x100 |
49 | #define GXEMUL_RTC_ACK 0x15000110 |
50 | #define GXEMUL_RTC_ACK_OFFSET 0x110 |
50 | #define GXEMUL_IRQC 0x16000000 |
51 | #define GXEMUL_IRQC 0x16000000 |
51 | #define GXEMUL_IRQC_MASK 0x16000004 |
52 | #define GXEMUL_IRQC_MASK_OFFSET 0x4 |
52 | #define GXEMUL_IRQC_UNMASK 0x16000008 |
53 | #define GXEMUL_IRQC_UNMASK_OFFSET 0x8 |
- | 54 | #define GXEMUL_MP 0x11000000 |
|
- | 55 | #define GXEMUL_MP_MEMSIZE_OFFSET 0x0090 |
|
- | 56 | ||
53 | 57 | ||
54 | /** IRQs */ |
58 | /** IRQs */ |
55 | #define GXEMUL_KBD_IRQ 2 |
59 | #define GXEMUL_KBD_IRQ 2 |
56 | #define GXEMUL_TIMER_IRQ 4 |
60 | #define GXEMUL_TIMER_IRQ 4 |
57 | 61 | ||
- | 62 | static gxemul_hw_map_t gxemul_hw_map; |
|
58 | static chardev_t console; |
63 | static chardev_t console; |
59 | static irq_t gxemul_irq; |
64 | static irq_t gxemul_irq; |
60 | static irq_t gxemul_timer_irq; |
65 | static irq_t gxemul_timer_irq; |
61 | 66 | ||
62 | static void gxemul_write(chardev_t *dev, const char ch); |
67 | static void gxemul_write(chardev_t *dev, const char ch); |
Line 69... | Line 74... | ||
69 | .suspend = gxemul_disable, |
74 | .suspend = gxemul_disable, |
70 | .write = gxemul_write, |
75 | .write = gxemul_write, |
71 | .read = gxemul_do_read, |
76 | .read = gxemul_do_read, |
72 | }; |
77 | }; |
73 | 78 | ||
- | 79 | ||
- | 80 | /** Initializes #gxemul_hw_map. */ |
|
- | 81 | void gxemul_hw_map_init(void) |
|
- | 82 | { |
|
- | 83 | gxemul_hw_map.videoram = hw_map(GXEMUL_VIDEORAM, PAGE_SIZE); |
|
- | 84 | gxemul_hw_map.kbd = hw_map(GXEMUL_KBD, PAGE_SIZE); |
|
- | 85 | gxemul_hw_map.rtc = hw_map(GXEMUL_RTC, PAGE_SIZE); |
|
- | 86 | gxemul_hw_map.irqc = hw_map(GXEMUL_IRQC, PAGE_SIZE); |
|
- | 87 | ||
- | 88 | gxemul_hw_map.rtc_freq = gxemul_hw_map.rtc + GXEMUL_RTC_FREQ_OFFSET; |
|
- | 89 | gxemul_hw_map.rtc_ack = gxemul_hw_map.rtc + GXEMUL_RTC_ACK_OFFSET; |
|
- | 90 | gxemul_hw_map.irqc_mask = gxemul_hw_map.irqc + GXEMUL_IRQC_MASK_OFFSET; |
|
- | 91 | gxemul_hw_map.irqc_unmask = gxemul_hw_map.irqc + GXEMUL_IRQC_UNMASK_OFFSET; |
|
- | 92 | } |
|
- | 93 | ||
74 | /** Putchar that works with gxemul */ |
94 | /** Putchar that works with gxemul */ |
75 | void gxemul_write(chardev_t *dev, const char ch) |
95 | void gxemul_write(chardev_t *dev, const char ch) |
76 | { |
96 | { |
77 | *((char *) GXEMUL_VIDEORAM) = ch; |
97 | *((char *) gxemul_hw_map.videoram) = ch; |
78 | } |
98 | } |
79 | 99 | ||
80 | /* Called from getc(). */ |
100 | /* Called from getc(). */ |
81 | void gxemul_enable(chardev_t *dev) |
101 | void gxemul_enable(chardev_t *dev) |
82 | { |
102 | { |
Line 95... | Line 115... | ||
95 | static char gxemul_do_read(chardev_t *dev) |
115 | static char gxemul_do_read(chardev_t *dev) |
96 | { |
116 | { |
97 | char ch; |
117 | char ch; |
98 | 118 | ||
99 | while (1) { |
119 | while (1) { |
100 | ch = *((volatile char *) GXEMUL_KBD_ADDRESS); |
120 | ch = *((volatile char *) gxemul_hw_map.kbd); |
101 | if (ch) { |
121 | if (ch) { |
102 | if (ch == '\r') |
122 | if (ch == '\r') |
103 | return '\n'; |
123 | return '\n'; |
104 | if (ch == 0x7f) |
124 | if (ch == 0x7f) |
105 | return '\b'; |
125 | return '\b'; |
Line 114... | Line 134... | ||
114 | if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox)) |
134 | if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox)) |
115 | ipc_irq_send_notif(irq); |
135 | ipc_irq_send_notif(irq); |
116 | else { |
136 | else { |
117 | char ch = 0; |
137 | char ch = 0; |
118 | 138 | ||
119 | ch = *((char *) GXEMUL_KBD_ADDRESS); |
139 | ch = *((char *) gxemul_hw_map.kbd); |
120 | if (ch =='\r') |
140 | if (ch =='\r') |
121 | ch = '\n'; |
141 | ch = '\n'; |
122 | if (ch == 0x7f) |
142 | if (ch == 0x7f) |
123 | ch = '\b'; |
143 | ch = '\b'; |
124 | //chardev_push_character(&console, ch); |
144 | //chardev_push_character(&console, ch); |
Line 132... | Line 152... | ||
132 | } |
152 | } |
133 | 153 | ||
134 | void gxemul_kbd_grab(void) |
154 | void gxemul_kbd_grab(void) |
135 | { |
155 | { |
136 | ipl_t ipl = interrupts_disable(); |
156 | ipl_t ipl = interrupts_disable(); |
137 | spinlock_lock(&msim_irq.lock); |
157 | spinlock_lock(&gxemul_irq.lock); |
138 | gxemul_irq.notif_cfg.notify = false; |
158 | gxemul_irq.notif_cfg.notify = false; |
139 | spinlock_unlock(&gxemul_irq.lock); |
159 | spinlock_unlock(&gxemul_irq.lock); |
140 | interrupts_restore(ipl); |
160 | interrupts_restore(ipl); |
141 | } |
161 | } |
142 | 162 | ||
Line 149... | Line 169... | ||
149 | spinlock_unlock(&gxemul_irq.lock); |
169 | spinlock_unlock(&gxemul_irq.lock); |
150 | interrupts_restore(ipl); |
170 | interrupts_restore(ipl); |
151 | } |
171 | } |
152 | 172 | ||
153 | 173 | ||
154 | /** Return console object representing msim console */ |
174 | /** Return console object representing gxemul console */ |
155 | void gxemul_console(devno_t devno) |
175 | void gxemul_console(devno_t devno) |
156 | { |
176 | { |
157 | chardev_initialize("msim_console", &console, &gxemul_ops); |
177 | chardev_initialize("gxemul_console", &console, &gxemul_ops); |
158 | stdin = &console; |
178 | stdin = &console; |
159 | stdout = &console; |
179 | stdout = &console; |
160 | 180 | ||
161 | irq_initialize(&gxemul_irq); |
181 | irq_initialize(&gxemul_irq); |
162 | gxemul_irq.devno = devno; |
182 | gxemul_irq.devno = devno; |
Line 169... | Line 189... | ||
169 | gxemul_irqc_unmask(GXEMUL_KBD_IRQ); |
189 | gxemul_irqc_unmask(GXEMUL_KBD_IRQ); |
170 | 190 | ||
171 | sysinfo_set_item_val("kbd", NULL, true); |
191 | sysinfo_set_item_val("kbd", NULL, true); |
172 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
192 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
173 | sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ); |
193 | sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ); |
174 | sysinfo_set_item_val("kbd.address.virtual", NULL, GXEMUL_KBD_ADDRESS); |
194 | sysinfo_set_item_val("kbd.address.virtual", NULL, gxemul_hw_map.kbd); |
175 | } |
195 | } |
176 | 196 | ||
177 | /** Return the mask of active interrupts. */ |
197 | /** Return the mask of active interrupts. */ |
178 | inline uint32_t gxemul_irqc_get_sources(void) |
198 | inline uint32_t gxemul_irqc_get_sources(void) |
179 | { |
199 | { |
180 | return *(uint32_t*) GXEMUL_IRQC; |
200 | return *(uint32_t*) gxemul_hw_map.irqc; |
181 | } |
201 | } |
182 | 202 | ||
183 | /** Masks interrupt. |
203 | /** Masks interrupt. |
184 | * |
204 | * |
185 | * @param irq interrupt number |
205 | * @param irq interrupt number |
186 | */ |
206 | */ |
187 | inline void gxemul_irqc_mask(uint32_t irq) |
207 | inline void gxemul_irqc_mask(uint32_t irq) |
188 | { |
208 | { |
189 | *(uint32_t*) GXEMUL_IRQC_MASK = irq; |
209 | *(uint32_t*) gxemul_hw_map.irqc_mask = irq; |
190 | } |
210 | } |
191 | 211 | ||
192 | /** Unmasks interrupt. |
212 | /** Unmasks interrupt. |
193 | * |
213 | * |
194 | * @param irq interrupt number |
214 | * @param irq interrupt number |
195 | */ |
215 | */ |
196 | inline void gxemul_irqc_unmask(uint32_t irq) |
216 | inline void gxemul_irqc_unmask(uint32_t irq) |
197 | { |
217 | { |
198 | *(uint32_t*) GXEMUL_IRQC_UNMASK = irq; |
218 | *(uint32_t*) gxemul_hw_map.irqc_unmask = irq; |
199 | } |
219 | } |
200 | 220 | ||
201 | 221 | ||
202 | /** Starts gxemul Real Time Clock device, which asserts regular interrupts. |
222 | /** Starts gxemul Real Time Clock device, which asserts regular interrupts. |
203 | * |
223 | * |
204 | * @param frequency interrupts frequency (0 disables RTC) |
224 | * @param frequency interrupts frequency (0 disables RTC) |
205 | */ |
225 | */ |
206 | void gxemul_timer_start(uint32_t frequency) |
226 | void gxemul_timer_start(uint32_t frequency) |
207 | { |
227 | { |
208 | *(uint32_t*) GXEMUL_RTC_FREQ = frequency; |
228 | *(uint32_t*) gxemul_hw_map.rtc_freq = frequency; |
209 | } |
229 | } |
210 | 230 | ||
211 | static irq_ownership_t gxemul_timer_claim(void) |
231 | static irq_ownership_t gxemul_timer_claim(void) |
212 | { |
232 | { |
213 | return IRQ_ACCEPT; |
233 | return IRQ_ACCEPT; |
Line 235... | Line 255... | ||
235 | //clock(); |
255 | //clock(); |
236 | puts(" "); |
256 | puts(" "); |
237 | spinlock_lock(&irq->lock); |
257 | spinlock_lock(&irq->lock); |
238 | 258 | ||
239 | /* acknowledge tick */ |
259 | /* acknowledge tick */ |
240 | *(uint32_t*) GXEMUL_RTC_ACK = 0; |
260 | *(uint32_t*) gxemul_hw_map.rtc_ack = 0; |
241 | 261 | ||
242 | /* TODO what's that? * |
262 | /* TODO what's that? * |
243 | if (virtual_timer_fnc != NULL) |
263 | if (virtual_timer_fnc != NULL) |
244 | virtual_timer_fnc(); |
264 | virtual_timer_fnc(); |
245 | */ |
265 | */ |
Line 257... | Line 277... | ||
257 | gxemul_timer_irq.handler = gxemul_timer_irq_handler; |
277 | gxemul_timer_irq.handler = gxemul_timer_irq_handler; |
258 | 278 | ||
259 | irq_register(&gxemul_timer_irq); |
279 | irq_register(&gxemul_timer_irq); |
260 | } |
280 | } |
261 | 281 | ||
- | 282 | size_t gxemul_get_memory_size(void) |
|
- | 283 | { |
|
- | 284 | return *((int*)(GXEMUL_MP + GXEMUL_MP_MEMSIZE_OFFSET)); |
|
- | 285 | } |
|
262 | 286 | ||
263 | /** @} |
287 | /** @} |
264 | */ |
288 | */ |