?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
linux-user: Use target_restore_altstack in all sigreturn
[qemu/ar7.git] / hw / gpio / aspeed_gpio.c
blob985a259e05b72f4c280ba3ab239edf059c20f421
1 /*
2 * ASPEED GPIO Controller
3 *
4 * Copyright (C) 2017-2019 IBM Corp.
5 *
6 * SPDX-License-Identifier: GPL-2.0-or-later
7 */
8
9 #include "qemu/osdep.h"
10 #include "qemu/host-utils.h"
11 #include "qemu/log.h"
12 #include "hw/gpio/aspeed_gpio.h"
13 #include "include/hw/misc/aspeed_scu.h"
14 #include "qapi/error.h"
15 #include "qapi/visitor.h"
16 #include "hw/irq.h"
17 #include "migration/vmstate.h"
18
19 #define GPIOS_PER_REG 32
20 #define GPIOS_PER_SET GPIOS_PER_REG
21 #define GPIO_PIN_GAP_SIZE 4
22 #define GPIOS_PER_GROUP 8
23 #define GPIO_GROUP_SHIFT 3
24
25 /* GPIO Source Types */
26 #define ASPEED_CMD_SRC_MASK 0x01010101
27 #define ASPEED_SOURCE_ARM 0
28 #define ASPEED_SOURCE_LPC 1
29 #define ASPEED_SOURCE_COPROCESSOR 2
30 #define ASPEED_SOURCE_RESERVED 3
31
32 /* GPIO Interrupt Triggers */
33 /*
34 * For each set of gpios there are three sensitivity registers that control
35 * the interrupt trigger mode.
36 *
37 * | 2 | 1 | 0 | trigger mode
38 * -----------------------------
39 * | 0 | 0 | 0 | falling-edge
40 * | 0 | 0 | 1 | rising-edge
41 * | 0 | 1 | 0 | level-low
42 * | 0 | 1 | 1 | level-high
43 * | 1 | X | X | dual-edge
44 */
45 #define ASPEED_FALLING_EDGE 0
46 #define ASPEED_RISING_EDGE 1
47 #define ASPEED_LEVEL_LOW 2
48 #define ASPEED_LEVEL_HIGH 3
49 #define ASPEED_DUAL_EDGE 4
50
51 /* GPIO Register Address Offsets */
52 #define GPIO_ABCD_DATA_VALUE (0x000 >> 2)
53 #define GPIO_ABCD_DIRECTION (0x004 >> 2)
54 #define GPIO_ABCD_INT_ENABLE (0x008 >> 2)
55 #define GPIO_ABCD_INT_SENS_0 (0x00C >> 2)
56 #define GPIO_ABCD_INT_SENS_1 (0x010 >> 2)
57 #define GPIO_ABCD_INT_SENS_2 (0x014 >> 2)
58 #define GPIO_ABCD_INT_STATUS (0x018 >> 2)
59 #define GPIO_ABCD_RESET_TOLERANT (0x01C >> 2)
60 #define GPIO_EFGH_DATA_VALUE (0x020 >> 2)
61 #define GPIO_EFGH_DIRECTION (0x024 >> 2)
62 #define GPIO_EFGH_INT_ENABLE (0x028 >> 2)
63 #define GPIO_EFGH_INT_SENS_0 (0x02C >> 2)
64 #define GPIO_EFGH_INT_SENS_1 (0x030 >> 2)
65 #define GPIO_EFGH_INT_SENS_2 (0x034 >> 2)
66 #define GPIO_EFGH_INT_STATUS (0x038 >> 2)
67 #define GPIO_EFGH_RESET_TOLERANT (0x03C >> 2)
68 #define GPIO_ABCD_DEBOUNCE_1 (0x040 >> 2)
69 #define GPIO_ABCD_DEBOUNCE_2 (0x044 >> 2)
70 #define GPIO_EFGH_DEBOUNCE_1 (0x048 >> 2)
71 #define GPIO_EFGH_DEBOUNCE_2 (0x04C >> 2)
72 #define GPIO_DEBOUNCE_TIME_1 (0x050 >> 2)
73 #define GPIO_DEBOUNCE_TIME_2 (0x054 >> 2)
74 #define GPIO_DEBOUNCE_TIME_3 (0x058 >> 2)
75 #define GPIO_ABCD_COMMAND_SRC_0 (0x060 >> 2)
76 #define GPIO_ABCD_COMMAND_SRC_1 (0x064 >> 2)
77 #define GPIO_EFGH_COMMAND_SRC_0 (0x068 >> 2)
78 #define GPIO_EFGH_COMMAND_SRC_1 (0x06C >> 2)
79 #define GPIO_IJKL_DATA_VALUE (0x070 >> 2)
80 #define GPIO_IJKL_DIRECTION (0x074 >> 2)
81 #define GPIO_MNOP_DATA_VALUE (0x078 >> 2)
82 #define GPIO_MNOP_DIRECTION (0x07C >> 2)
83 #define GPIO_QRST_DATA_VALUE (0x080 >> 2)
84 #define GPIO_QRST_DIRECTION (0x084 >> 2)
85 #define GPIO_UVWX_DATA_VALUE (0x088 >> 2)
86 #define GPIO_UVWX_DIRECTION (0x08C >> 2)
87 #define GPIO_IJKL_COMMAND_SRC_0 (0x090 >> 2)
88 #define GPIO_IJKL_COMMAND_SRC_1 (0x094 >> 2)
89 #define GPIO_IJKL_INT_ENABLE (0x098 >> 2)
90 #define GPIO_IJKL_INT_SENS_0 (0x09C >> 2)
91 #define GPIO_IJKL_INT_SENS_1 (0x0A0 >> 2)
92 #define GPIO_IJKL_INT_SENS_2 (0x0A4 >> 2)
93 #define GPIO_IJKL_INT_STATUS (0x0A8 >> 2)
94 #define GPIO_IJKL_RESET_TOLERANT (0x0AC >> 2)
95 #define GPIO_IJKL_DEBOUNCE_1 (0x0B0 >> 2)
96 #define GPIO_IJKL_DEBOUNCE_2 (0x0B4 >> 2)
97 #define GPIO_IJKL_INPUT_MASK (0x0B8 >> 2)
98 #define GPIO_ABCD_DATA_READ (0x0C0 >> 2)
99 #define GPIO_EFGH_DATA_READ (0x0C4 >> 2)
100 #define GPIO_IJKL_DATA_READ (0x0C8 >> 2)
101 #define GPIO_MNOP_DATA_READ (0x0CC >> 2)
102 #define GPIO_QRST_DATA_READ (0x0D0 >> 2)
103 #define GPIO_UVWX_DATA_READ (0x0D4 >> 2)
104 #define GPIO_YZAAAB_DATA_READ (0x0D8 >> 2)
105 #define GPIO_AC_DATA_READ (0x0DC >> 2)
106 #define GPIO_MNOP_COMMAND_SRC_0 (0x0E0 >> 2)
107 #define GPIO_MNOP_COMMAND_SRC_1 (0x0E4 >> 2)
108 #define GPIO_MNOP_INT_ENABLE (0x0E8 >> 2)
109 #define GPIO_MNOP_INT_SENS_0 (0x0EC >> 2)
110 #define GPIO_MNOP_INT_SENS_1 (0x0F0 >> 2)
111 #define GPIO_MNOP_INT_SENS_2 (0x0F4 >> 2)
112 #define GPIO_MNOP_INT_STATUS (0x0F8 >> 2)
113 #define GPIO_MNOP_RESET_TOLERANT (0x0FC >> 2)
114 #define GPIO_MNOP_DEBOUNCE_1 (0x100 >> 2)
115 #define GPIO_MNOP_DEBOUNCE_2 (0x104 >> 2)
116 #define GPIO_MNOP_INPUT_MASK (0x108 >> 2)
117 #define GPIO_QRST_COMMAND_SRC_0 (0x110 >> 2)
118 #define GPIO_QRST_COMMAND_SRC_1 (0x114 >> 2)
119 #define GPIO_QRST_INT_ENABLE (0x118 >> 2)
120 #define GPIO_QRST_INT_SENS_0 (0x11C >> 2)
121 #define GPIO_QRST_INT_SENS_1 (0x120 >> 2)
122 #define GPIO_QRST_INT_SENS_2 (0x124 >> 2)
123 #define GPIO_QRST_INT_STATUS (0x128 >> 2)
124 #define GPIO_QRST_RESET_TOLERANT (0x12C >> 2)
125 #define GPIO_QRST_DEBOUNCE_1 (0x130 >> 2)
126 #define GPIO_QRST_DEBOUNCE_2 (0x134 >> 2)
127 #define GPIO_QRST_INPUT_MASK (0x138 >> 2)
128 #define GPIO_UVWX_COMMAND_SRC_0 (0x140 >> 2)
129 #define GPIO_UVWX_COMMAND_SRC_1 (0x144 >> 2)
130 #define GPIO_UVWX_INT_ENABLE (0x148 >> 2)
131 #define GPIO_UVWX_INT_SENS_0 (0x14C >> 2)
132 #define GPIO_UVWX_INT_SENS_1 (0x150 >> 2)
133 #define GPIO_UVWX_INT_SENS_2 (0x154 >> 2)
134 #define GPIO_UVWX_INT_STATUS (0x158 >> 2)
135 #define GPIO_UVWX_RESET_TOLERANT (0x15C >> 2)
136 #define GPIO_UVWX_DEBOUNCE_1 (0x160 >> 2)
137 #define GPIO_UVWX_DEBOUNCE_2 (0x164 >> 2)
138 #define GPIO_UVWX_INPUT_MASK (0x168 >> 2)
139 #define GPIO_YZAAAB_COMMAND_SRC_0 (0x170 >> 2)
140 #define GPIO_YZAAAB_COMMAND_SRC_1 (0x174 >> 2)
141 #define GPIO_YZAAAB_INT_ENABLE (0x178 >> 2)
142 #define GPIO_YZAAAB_INT_SENS_0 (0x17C >> 2)
143 #define GPIO_YZAAAB_INT_SENS_1 (0x180 >> 2)
144 #define GPIO_YZAAAB_INT_SENS_2 (0x184 >> 2)
145 #define GPIO_YZAAAB_INT_STATUS (0x188 >> 2)
146 #define GPIO_YZAAAB_RESET_TOLERANT (0x18C >> 2)
147 #define GPIO_YZAAAB_DEBOUNCE_1 (0x190 >> 2)
148 #define GPIO_YZAAAB_DEBOUNCE_2 (0x194 >> 2)
149 #define GPIO_YZAAAB_INPUT_MASK (0x198 >> 2)
150 #define GPIO_AC_COMMAND_SRC_0 (0x1A0 >> 2)
151 #define GPIO_AC_COMMAND_SRC_1 (0x1A4 >> 2)
152 #define GPIO_AC_INT_ENABLE (0x1A8 >> 2)
153 #define GPIO_AC_INT_SENS_0 (0x1AC >> 2)
154 #define GPIO_AC_INT_SENS_1 (0x1B0 >> 2)
155 #define GPIO_AC_INT_SENS_2 (0x1B4 >> 2)
156 #define GPIO_AC_INT_STATUS (0x1B8 >> 2)
157 #define GPIO_AC_RESET_TOLERANT (0x1BC >> 2)
158 #define GPIO_AC_DEBOUNCE_1 (0x1C0 >> 2)
159 #define GPIO_AC_DEBOUNCE_2 (0x1C4 >> 2)
160 #define GPIO_AC_INPUT_MASK (0x1C8 >> 2)
161 #define GPIO_ABCD_INPUT_MASK (0x1D0 >> 2)
162 #define GPIO_EFGH_INPUT_MASK (0x1D4 >> 2)
163 #define GPIO_YZAAAB_DATA_VALUE (0x1E0 >> 2)
164 #define GPIO_YZAAAB_DIRECTION (0x1E4 >> 2)
165 #define GPIO_AC_DATA_VALUE (0x1E8 >> 2)
166 #define GPIO_AC_DIRECTION (0x1EC >> 2)
167 #define GPIO_3_6V_MEM_SIZE 0x1F0
168 #define GPIO_3_6V_REG_ARRAY_SIZE (GPIO_3_6V_MEM_SIZE >> 2)
169
170 /* AST2600 only - 1.8V gpios */
171 /*
172 * The AST2600 has same 3.6V gpios as the AST2400 (memory offsets 0x0-0x198)
173 * and addtional 1.8V gpios (memory offsets 0x800-0x9D4).
174 */
175 #define GPIO_1_8V_REG_OFFSET 0x800
176 #define GPIO_1_8V_ABCD_DATA_VALUE ((0x800 - GPIO_1_8V_REG_OFFSET) >> 2)
177 #define GPIO_1_8V_ABCD_DIRECTION ((0x804 - GPIO_1_8V_REG_OFFSET) >> 2)
178 #define GPIO_1_8V_ABCD_INT_ENABLE ((0x808 - GPIO_1_8V_REG_OFFSET) >> 2)
179 #define GPIO_1_8V_ABCD_INT_SENS_0 ((0x80C - GPIO_1_8V_REG_OFFSET) >> 2)
180 #define GPIO_1_8V_ABCD_INT_SENS_1 ((0x810 - GPIO_1_8V_REG_OFFSET) >> 2)
181 #define GPIO_1_8V_ABCD_INT_SENS_2 ((0x814 - GPIO_1_8V_REG_OFFSET) >> 2)
182 #define GPIO_1_8V_ABCD_INT_STATUS ((0x818 - GPIO_1_8V_REG_OFFSET) >> 2)
183 #define GPIO_1_8V_ABCD_RESET_TOLERANT ((0x81C - GPIO_1_8V_REG_OFFSET) >> 2)
184 #define GPIO_1_8V_E_DATA_VALUE ((0x820 - GPIO_1_8V_REG_OFFSET) >> 2)
185 #define GPIO_1_8V_E_DIRECTION ((0x824 - GPIO_1_8V_REG_OFFSET) >> 2)
186 #define GPIO_1_8V_E_INT_ENABLE ((0x828 - GPIO_1_8V_REG_OFFSET) >> 2)
187 #define GPIO_1_8V_E_INT_SENS_0 ((0x82C - GPIO_1_8V_REG_OFFSET) >> 2)
188 #define GPIO_1_8V_E_INT_SENS_1 ((0x830 - GPIO_1_8V_REG_OFFSET) >> 2)
189 #define GPIO_1_8V_E_INT_SENS_2 ((0x834 - GPIO_1_8V_REG_OFFSET) >> 2)
190 #define GPIO_1_8V_E_INT_STATUS ((0x838 - GPIO_1_8V_REG_OFFSET) >> 2)
191 #define GPIO_1_8V_E_RESET_TOLERANT ((0x83C - GPIO_1_8V_REG_OFFSET) >> 2)
192 #define GPIO_1_8V_ABCD_DEBOUNCE_1 ((0x840 - GPIO_1_8V_REG_OFFSET) >> 2)
193 #define GPIO_1_8V_ABCD_DEBOUNCE_2 ((0x844 - GPIO_1_8V_REG_OFFSET) >> 2)
194 #define GPIO_1_8V_E_DEBOUNCE_1 ((0x848 - GPIO_1_8V_REG_OFFSET) >> 2)
195 #define GPIO_1_8V_E_DEBOUNCE_2 ((0x84C - GPIO_1_8V_REG_OFFSET) >> 2)
196 #define GPIO_1_8V_DEBOUNCE_TIME_1 ((0x850 - GPIO_1_8V_REG_OFFSET) >> 2)
197 #define GPIO_1_8V_DEBOUNCE_TIME_2 ((0x854 - GPIO_1_8V_REG_OFFSET) >> 2)
198 #define GPIO_1_8V_DEBOUNCE_TIME_3 ((0x858 - GPIO_1_8V_REG_OFFSET) >> 2)
199 #define GPIO_1_8V_ABCD_COMMAND_SRC_0 ((0x860 - GPIO_1_8V_REG_OFFSET) >> 2)
200 #define GPIO_1_8V_ABCD_COMMAND_SRC_1 ((0x864 - GPIO_1_8V_REG_OFFSET) >> 2)
201 #define GPIO_1_8V_E_COMMAND_SRC_0 ((0x868 - GPIO_1_8V_REG_OFFSET) >> 2)
202 #define GPIO_1_8V_E_COMMAND_SRC_1 ((0x86C - GPIO_1_8V_REG_OFFSET) >> 2)
203 #define GPIO_1_8V_ABCD_DATA_READ ((0x8C0 - GPIO_1_8V_REG_OFFSET) >> 2)
204 #define GPIO_1_8V_E_DATA_READ ((0x8C4 - GPIO_1_8V_REG_OFFSET) >> 2)
205 #define GPIO_1_8V_ABCD_INPUT_MASK ((0x9D0 - GPIO_1_8V_REG_OFFSET) >> 2)
206 #define GPIO_1_8V_E_INPUT_MASK ((0x9D4 - GPIO_1_8V_REG_OFFSET) >> 2)
207 #define GPIO_1_8V_MEM_SIZE 0x9D8
208 #define GPIO_1_8V_REG_ARRAY_SIZE ((GPIO_1_8V_MEM_SIZE - \
209 GPIO_1_8V_REG_OFFSET) >> 2)
210 #define GPIO_MAX_MEM_SIZE MAX(GPIO_3_6V_MEM_SIZE, GPIO_1_8V_MEM_SIZE)
211
212 static int aspeed_evaluate_irq(GPIOSets *regs, int gpio_prev_high, int gpio)
213 {
214 uint32_t falling_edge = 0, rising_edge = 0;
215 uint32_t int_trigger = extract32(regs->int_sens_0, gpio, 1)
216 | extract32(regs->int_sens_1, gpio, 1) << 1
217 | extract32(regs->int_sens_2, gpio, 1) << 2;
218 uint32_t gpio_curr_high = extract32(regs->data_value, gpio, 1);
219 uint32_t gpio_int_enabled = extract32(regs->int_enable, gpio, 1);
220
221 if (!gpio_int_enabled) {
222 return 0;
223 }
224
225 /* Detect edges */
226 if (gpio_curr_high && !gpio_prev_high) {
227 rising_edge = 1;
228 } else if (!gpio_curr_high && gpio_prev_high) {
229 falling_edge = 1;
230 }
231
232 if (((int_trigger == ASPEED_FALLING_EDGE) && falling_edge) ||
233 ((int_trigger == ASPEED_RISING_EDGE) && rising_edge) ||
234 ((int_trigger == ASPEED_LEVEL_LOW) && !gpio_curr_high) ||
235 ((int_trigger == ASPEED_LEVEL_HIGH) && gpio_curr_high) ||
236 ((int_trigger >= ASPEED_DUAL_EDGE) && (rising_edge || falling_edge)))
237 {
238 regs->int_status = deposit32(regs->int_status, gpio, 1, 1);
239 return 1;
240 }
241 return 0;
242 }
243
244 #define nested_struct_index(ta, pa, m, tb, pb) \
245 (pb - ((tb *)(((char *)pa) + offsetof(ta, m))))
246
247 static ptrdiff_t aspeed_gpio_set_idx(AspeedGPIOState *s, GPIOSets *regs)
248 {
249 return nested_struct_index(AspeedGPIOState, s, sets, GPIOSets, regs);
250 }
251
252 static void aspeed_gpio_update(AspeedGPIOState *s, GPIOSets *regs,
253 uint32_t value)
254 {
255 uint32_t input_mask = regs->input_mask;
256 uint32_t direction = regs->direction;
257 uint32_t old = regs->data_value;
258 uint32_t new = value;
259 uint32_t diff;
260 int gpio;
261
262 diff = old ^ new;
263 if (diff) {
264 for (gpio = 0; gpio < GPIOS_PER_REG; gpio++) {
265 uint32_t mask = 1 << gpio;
266
267 /* If the gpio needs to be updated... */
268 if (!(diff & mask)) {
269 continue;
270 }
271
272 /* ...and we're output or not input-masked... */
273 if (!(direction & mask) && (input_mask & mask)) {
274 continue;
275 }
276
277 /* ...then update the state. */
278 if (mask & new) {
279 regs->data_value |= mask;
280 } else {
281 regs->data_value &= ~mask;
282 }
283
284 /* If the gpio is set to output... */
285 if (direction & mask) {
286 /* ...trigger the line-state IRQ */
287 ptrdiff_t set = aspeed_gpio_set_idx(s, regs);
288 size_t offset = set * GPIOS_PER_SET + gpio;
289 qemu_set_irq(s->gpios[offset], !!(new & mask));
290 } else {
291 /* ...otherwise if we meet the line's current IRQ policy... */
292 if (aspeed_evaluate_irq(regs, old & mask, gpio)) {
293 /* ...trigger the VIC IRQ */
294 s->pending++;
295 }
296 }
297 }
298 }
299 qemu_set_irq(s->irq, !!(s->pending));
300 }
301
302 static uint32_t aspeed_adjust_pin(AspeedGPIOState *s, uint32_t pin)
303 {
304 AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
305 /*
306 * The 2500 has a 4 pin gap in group AB and the 2400 has a 4 pin
307 * gap in group Y (and only four pins in AB but this is the last group so
308 * it doesn't matter).
309 */
310 if (agc->gap && pin >= agc->gap) {
311 pin += GPIO_PIN_GAP_SIZE;
312 }
313
314 return pin;
315 }
316
317 static bool aspeed_gpio_get_pin_level(AspeedGPIOState *s, uint32_t set_idx,
318 uint32_t pin)
319 {
320 uint32_t reg_val;
321 uint32_t pin_mask = 1 << pin;
322
323 reg_val = s->sets[set_idx].data_value;
324
325 return !!(reg_val & pin_mask);
326 }
327
328 static void aspeed_gpio_set_pin_level(AspeedGPIOState *s, uint32_t set_idx,
329 uint32_t pin, bool level)
330 {
331 uint32_t value = s->sets[set_idx].data_value;
332 uint32_t pin_mask = 1 << pin;
333
334 if (level) {
335 value |= pin_mask;
336 } else {
337 value &= !pin_mask;
338 }
339
340 aspeed_gpio_update(s, &s->sets[set_idx], value);
341 }
342
343 /*
344 * | src_1 | src_2 | source |
345 * |-----------------------------|
346 * | 0 | 0 | ARM |
347 * | 0 | 1 | LPC |
348 * | 1 | 0 | Coprocessor|
349 * | 1 | 1 | Reserved |
350 *
351 * Once the source of a set is programmed, corresponding bits in the
352 * data_value, direction, interrupt [enable, sens[0-2]], reset_tol and
353 * debounce registers can only be written by the source.
354 *
355 * Source is ARM by default
356 * only bits 24, 16, 8, and 0 can be set
357 *
358 * we don't currently have a model for the LPC or Coprocessor
359 */
360 static uint32_t update_value_control_source(GPIOSets *regs, uint32_t old_value,
361 uint32_t value)
362 {
363 int i;
364 int cmd_source;
365
366 /* assume the source is always ARM for now */
367 int source = ASPEED_SOURCE_ARM;
368
369 uint32_t new_value = 0;
370
371 /* for each group in set */
372 for (i = 0; i < GPIOS_PER_REG; i += GPIOS_PER_GROUP) {
373 cmd_source = extract32(regs->cmd_source_0, i, 1)
374 | (extract32(regs->cmd_source_1, i, 1) << 1);
375
376 if (source == cmd_source) {
377 new_value |= (0xff << i) & value;
378 } else {
379 new_value |= (0xff << i) & old_value;
380 }
381 }
382 return new_value;
383 }
384
385 static const AspeedGPIOReg aspeed_3_6v_gpios[GPIO_3_6V_REG_ARRAY_SIZE] = {
386 /* Set ABCD */
387 [GPIO_ABCD_DATA_VALUE] = { 0, gpio_reg_data_value },
388 [GPIO_ABCD_DIRECTION] = { 0, gpio_reg_direction },
389 [GPIO_ABCD_INT_ENABLE] = { 0, gpio_reg_int_enable },
390 [GPIO_ABCD_INT_SENS_0] = { 0, gpio_reg_int_sens_0 },
391 [GPIO_ABCD_INT_SENS_1] = { 0, gpio_reg_int_sens_1 },
392 [GPIO_ABCD_INT_SENS_2] = { 0, gpio_reg_int_sens_2 },
393 [GPIO_ABCD_INT_STATUS] = { 0, gpio_reg_int_status },
394 [GPIO_ABCD_RESET_TOLERANT] = { 0, gpio_reg_reset_tolerant },
395 [GPIO_ABCD_DEBOUNCE_1] = { 0, gpio_reg_debounce_1 },
396 [GPIO_ABCD_DEBOUNCE_2] = { 0, gpio_reg_debounce_2 },
397 [GPIO_ABCD_COMMAND_SRC_0] = { 0, gpio_reg_cmd_source_0 },
398 [GPIO_ABCD_COMMAND_SRC_1] = { 0, gpio_reg_cmd_source_1 },
399 [GPIO_ABCD_DATA_READ] = { 0, gpio_reg_data_read },
400 [GPIO_ABCD_INPUT_MASK] = { 0, gpio_reg_input_mask },
401 /* Set EFGH */
402 [GPIO_EFGH_DATA_VALUE] = { 1, gpio_reg_data_value },
403 [GPIO_EFGH_DIRECTION] = { 1, gpio_reg_direction },
404 [GPIO_EFGH_INT_ENABLE] = { 1, gpio_reg_int_enable },
405 [GPIO_EFGH_INT_SENS_0] = { 1, gpio_reg_int_sens_0 },
406 [GPIO_EFGH_INT_SENS_1] = { 1, gpio_reg_int_sens_1 },
407 [GPIO_EFGH_INT_SENS_2] = { 1, gpio_reg_int_sens_2 },
408 [GPIO_EFGH_INT_STATUS] = { 1, gpio_reg_int_status },
409 [GPIO_EFGH_RESET_TOLERANT] = { 1, gpio_reg_reset_tolerant },
410 [GPIO_EFGH_DEBOUNCE_1] = { 1, gpio_reg_debounce_1 },
411 [GPIO_EFGH_DEBOUNCE_2] = { 1, gpio_reg_debounce_2 },
412 [GPIO_EFGH_COMMAND_SRC_0] = { 1, gpio_reg_cmd_source_0 },
413 [GPIO_EFGH_COMMAND_SRC_1] = { 1, gpio_reg_cmd_source_1 },
414 [GPIO_EFGH_DATA_READ] = { 1, gpio_reg_data_read },
415 [GPIO_EFGH_INPUT_MASK] = { 1, gpio_reg_input_mask },
416 /* Set IJKL */
417 [GPIO_IJKL_DATA_VALUE] = { 2, gpio_reg_data_value },
418 [GPIO_IJKL_DIRECTION] = { 2, gpio_reg_direction },
419 [GPIO_IJKL_INT_ENABLE] = { 2, gpio_reg_int_enable },
420 [GPIO_IJKL_INT_SENS_0] = { 2, gpio_reg_int_sens_0 },
421 [GPIO_IJKL_INT_SENS_1] = { 2, gpio_reg_int_sens_1 },
422 [GPIO_IJKL_INT_SENS_2] = { 2, gpio_reg_int_sens_2 },
423 [GPIO_IJKL_INT_STATUS] = { 2, gpio_reg_int_status },
424 [GPIO_IJKL_RESET_TOLERANT] = { 2, gpio_reg_reset_tolerant },
425 [GPIO_IJKL_DEBOUNCE_1] = { 2, gpio_reg_debounce_1 },
426 [GPIO_IJKL_DEBOUNCE_2] = { 2, gpio_reg_debounce_2 },
427 [GPIO_IJKL_COMMAND_SRC_0] = { 2, gpio_reg_cmd_source_0 },
428 [GPIO_IJKL_COMMAND_SRC_1] = { 2, gpio_reg_cmd_source_1 },
429 [GPIO_IJKL_DATA_READ] = { 2, gpio_reg_data_read },
430 [GPIO_IJKL_INPUT_MASK] = { 2, gpio_reg_input_mask },
431 /* Set MNOP */
432 [GPIO_MNOP_DATA_VALUE] = { 3, gpio_reg_data_value },
433 [GPIO_MNOP_DIRECTION] = { 3, gpio_reg_direction },
434 [GPIO_MNOP_INT_ENABLE] = { 3, gpio_reg_int_enable },
435 [GPIO_MNOP_INT_SENS_0] = { 3, gpio_reg_int_sens_0 },
436 [GPIO_MNOP_INT_SENS_1] = { 3, gpio_reg_int_sens_1 },
437 [GPIO_MNOP_INT_SENS_2] = { 3, gpio_reg_int_sens_2 },
438 [GPIO_MNOP_INT_STATUS] = { 3, gpio_reg_int_status },
439 [GPIO_MNOP_RESET_TOLERANT] = { 3, gpio_reg_reset_tolerant },
440 [GPIO_MNOP_DEBOUNCE_1] = { 3, gpio_reg_debounce_1 },
441 [GPIO_MNOP_DEBOUNCE_2] = { 3, gpio_reg_debounce_2 },
442 [GPIO_MNOP_COMMAND_SRC_0] = { 3, gpio_reg_cmd_source_0 },
443 [GPIO_MNOP_COMMAND_SRC_1] = { 3, gpio_reg_cmd_source_1 },
444 [GPIO_MNOP_DATA_READ] = { 3, gpio_reg_data_read },
445 [GPIO_MNOP_INPUT_MASK] = { 3, gpio_reg_input_mask },
446 /* Set QRST */
447 [GPIO_QRST_DATA_VALUE] = { 4, gpio_reg_data_value },
448 [GPIO_QRST_DIRECTION] = { 4, gpio_reg_direction },
449 [GPIO_QRST_INT_ENABLE] = { 4, gpio_reg_int_enable },
450 [GPIO_QRST_INT_SENS_0] = { 4, gpio_reg_int_sens_0 },
451 [GPIO_QRST_INT_SENS_1] = { 4, gpio_reg_int_sens_1 },
452 [GPIO_QRST_INT_SENS_2] = { 4, gpio_reg_int_sens_2 },
453 [GPIO_QRST_INT_STATUS] = { 4, gpio_reg_int_status },
454 [GPIO_QRST_RESET_TOLERANT] = { 4, gpio_reg_reset_tolerant },
455 [GPIO_QRST_DEBOUNCE_1] = { 4, gpio_reg_debounce_1 },
456 [GPIO_QRST_DEBOUNCE_2] = { 4, gpio_reg_debounce_2 },
457 [GPIO_QRST_COMMAND_SRC_0] = { 4, gpio_reg_cmd_source_0 },
458 [GPIO_QRST_COMMAND_SRC_1] = { 4, gpio_reg_cmd_source_1 },
459 [GPIO_QRST_DATA_READ] = { 4, gpio_reg_data_read },
460 [GPIO_QRST_INPUT_MASK] = { 4, gpio_reg_input_mask },
461 /* Set UVWX */
462 [GPIO_UVWX_DATA_VALUE] = { 5, gpio_reg_data_value },
463 [GPIO_UVWX_DIRECTION] = { 5, gpio_reg_direction },
464 [GPIO_UVWX_INT_ENABLE] = { 5, gpio_reg_int_enable },
465 [GPIO_UVWX_INT_SENS_0] = { 5, gpio_reg_int_sens_0 },
466 [GPIO_UVWX_INT_SENS_1] = { 5, gpio_reg_int_sens_1 },
467 [GPIO_UVWX_INT_SENS_2] = { 5, gpio_reg_int_sens_2 },
468 [GPIO_UVWX_INT_STATUS] = { 5, gpio_reg_int_status },
469 [GPIO_UVWX_RESET_TOLERANT] = { 5, gpio_reg_reset_tolerant },
470 [GPIO_UVWX_DEBOUNCE_1] = { 5, gpio_reg_debounce_1 },
471 [GPIO_UVWX_DEBOUNCE_2] = { 5, gpio_reg_debounce_2 },
472 [GPIO_UVWX_COMMAND_SRC_0] = { 5, gpio_reg_cmd_source_0 },
473 [GPIO_UVWX_COMMAND_SRC_1] = { 5, gpio_reg_cmd_source_1 },
474 [GPIO_UVWX_DATA_READ] = { 5, gpio_reg_data_read },
475 [GPIO_UVWX_INPUT_MASK] = { 5, gpio_reg_input_mask },
476 /* Set YZAAAB */
477 [GPIO_YZAAAB_DATA_VALUE] = { 6, gpio_reg_data_value },
478 [GPIO_YZAAAB_DIRECTION] = { 6, gpio_reg_direction },
479 [GPIO_YZAAAB_INT_ENABLE] = { 6, gpio_reg_int_enable },
480 [GPIO_YZAAAB_INT_SENS_0] = { 6, gpio_reg_int_sens_0 },
481 [GPIO_YZAAAB_INT_SENS_1] = { 6, gpio_reg_int_sens_1 },
482 [GPIO_YZAAAB_INT_SENS_2] = { 6, gpio_reg_int_sens_2 },
483 [GPIO_YZAAAB_INT_STATUS] = { 6, gpio_reg_int_status },
484 [GPIO_YZAAAB_RESET_TOLERANT] = { 6, gpio_reg_reset_tolerant },
485 [GPIO_YZAAAB_DEBOUNCE_1] = { 6, gpio_reg_debounce_1 },
486 [GPIO_YZAAAB_DEBOUNCE_2] = { 6, gpio_reg_debounce_2 },
487 [GPIO_YZAAAB_COMMAND_SRC_0] = { 6, gpio_reg_cmd_source_0 },
488 [GPIO_YZAAAB_COMMAND_SRC_1] = { 6, gpio_reg_cmd_source_1 },
489 [GPIO_YZAAAB_DATA_READ] = { 6, gpio_reg_data_read },
490 [GPIO_YZAAAB_INPUT_MASK] = { 6, gpio_reg_input_mask },
491 /* Set AC (ast2500 only) */
492 [GPIO_AC_DATA_VALUE] = { 7, gpio_reg_data_value },
493 [GPIO_AC_DIRECTION] = { 7, gpio_reg_direction },
494 [GPIO_AC_INT_ENABLE] = { 7, gpio_reg_int_enable },
495 [GPIO_AC_INT_SENS_0] = { 7, gpio_reg_int_sens_0 },
496 [GPIO_AC_INT_SENS_1] = { 7, gpio_reg_int_sens_1 },
497 [GPIO_AC_INT_SENS_2] = { 7, gpio_reg_int_sens_2 },
498 [GPIO_AC_INT_STATUS] = { 7, gpio_reg_int_status },
499 [GPIO_AC_RESET_TOLERANT] = { 7, gpio_reg_reset_tolerant },
500 [GPIO_AC_DEBOUNCE_1] = { 7, gpio_reg_debounce_1 },
501 [GPIO_AC_DEBOUNCE_2] = { 7, gpio_reg_debounce_2 },
502 [GPIO_AC_COMMAND_SRC_0] = { 7, gpio_reg_cmd_source_0 },
503 [GPIO_AC_COMMAND_SRC_1] = { 7, gpio_reg_cmd_source_1 },
504 [GPIO_AC_DATA_READ] = { 7, gpio_reg_data_read },
505 [GPIO_AC_INPUT_MASK] = { 7, gpio_reg_input_mask },
506 };
507
508 static const AspeedGPIOReg aspeed_1_8v_gpios[GPIO_1_8V_REG_ARRAY_SIZE] = {
509 /* 1.8V Set ABCD */
510 [GPIO_1_8V_ABCD_DATA_VALUE] = {0, gpio_reg_data_value},
511 [GPIO_1_8V_ABCD_DIRECTION] = {0, gpio_reg_direction},
512 [GPIO_1_8V_ABCD_INT_ENABLE] = {0, gpio_reg_int_enable},
513 [GPIO_1_8V_ABCD_INT_SENS_0] = {0, gpio_reg_int_sens_0},
514 [GPIO_1_8V_ABCD_INT_SENS_1] = {0, gpio_reg_int_sens_1},
515 [GPIO_1_8V_ABCD_INT_SENS_2] = {0, gpio_reg_int_sens_2},
516 [GPIO_1_8V_ABCD_INT_STATUS] = {0, gpio_reg_int_status},
517 [GPIO_1_8V_ABCD_RESET_TOLERANT] = {0, gpio_reg_reset_tolerant},
518 [GPIO_1_8V_ABCD_DEBOUNCE_1] = {0, gpio_reg_debounce_1},
519 [GPIO_1_8V_ABCD_DEBOUNCE_2] = {0, gpio_reg_debounce_2},
520 [GPIO_1_8V_ABCD_COMMAND_SRC_0] = {0, gpio_reg_cmd_source_0},
521 [GPIO_1_8V_ABCD_COMMAND_SRC_1] = {0, gpio_reg_cmd_source_1},
522 [GPIO_1_8V_ABCD_DATA_READ] = {0, gpio_reg_data_read},
523 [GPIO_1_8V_ABCD_INPUT_MASK] = {0, gpio_reg_input_mask},
524 /* 1.8V Set E */
525 [GPIO_1_8V_E_DATA_VALUE] = {1, gpio_reg_data_value},
526 [GPIO_1_8V_E_DIRECTION] = {1, gpio_reg_direction},
527 [GPIO_1_8V_E_INT_ENABLE] = {1, gpio_reg_int_enable},
528 [GPIO_1_8V_E_INT_SENS_0] = {1, gpio_reg_int_sens_0},
529 [GPIO_1_8V_E_INT_SENS_1] = {1, gpio_reg_int_sens_1},
530 [GPIO_1_8V_E_INT_SENS_2] = {1, gpio_reg_int_sens_2},
531 [GPIO_1_8V_E_INT_STATUS] = {1, gpio_reg_int_status},
532 [GPIO_1_8V_E_RESET_TOLERANT] = {1, gpio_reg_reset_tolerant},
533 [GPIO_1_8V_E_DEBOUNCE_1] = {1, gpio_reg_debounce_1},
534 [GPIO_1_8V_E_DEBOUNCE_2] = {1, gpio_reg_debounce_2},
535 [GPIO_1_8V_E_COMMAND_SRC_0] = {1, gpio_reg_cmd_source_0},
536 [GPIO_1_8V_E_COMMAND_SRC_1] = {1, gpio_reg_cmd_source_1},
537 [GPIO_1_8V_E_DATA_READ] = {1, gpio_reg_data_read},
538 [GPIO_1_8V_E_INPUT_MASK] = {1, gpio_reg_input_mask},
539 };
540
541 static uint64_t aspeed_gpio_read(void *opaque, hwaddr offset, uint32_t size)
542 {
543 AspeedGPIOState *s = ASPEED_GPIO(opaque);
544 AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
545 uint64_t idx = -1;
546 const AspeedGPIOReg *reg;
547 GPIOSets *set;
548
549 idx = offset >> 2;
550 if (idx >= GPIO_DEBOUNCE_TIME_1 && idx <= GPIO_DEBOUNCE_TIME_3) {
551 idx -= GPIO_DEBOUNCE_TIME_1;
552 return (uint64_t) s->debounce_regs[idx];
553 }
554
555 reg = &agc->reg_table[idx];
556 if (reg->set_idx >= agc->nr_gpio_sets) {
557 qemu_log_mask(LOG_GUEST_ERROR, "%s: no getter for offset 0x%"
558 HWADDR_PRIx"\n", __func__, offset);
559 return 0;
560 }
561
562 set = &s->sets[reg->set_idx];
563 switch (reg->type) {
564 case gpio_reg_data_value:
565 return set->data_value;
566 case gpio_reg_direction:
567 return set->direction;
568 case gpio_reg_int_enable:
569 return set->int_enable;
570 case gpio_reg_int_sens_0:
571 return set->int_sens_0;
572 case gpio_reg_int_sens_1:
573 return set->int_sens_1;
574 case gpio_reg_int_sens_2:
575 return set->int_sens_2;
576 case gpio_reg_int_status:
577 return set->int_status;
578 case gpio_reg_reset_tolerant:
579 return set->reset_tol;
580 case gpio_reg_debounce_1:
581 return set->debounce_1;
582 case gpio_reg_debounce_2:
583 return set->debounce_2;
584 case gpio_reg_cmd_source_0:
585 return set->cmd_source_0;
586 case gpio_reg_cmd_source_1:
587 return set->cmd_source_1;
588 case gpio_reg_data_read:
589 return set->data_read;
590 case gpio_reg_input_mask:
591 return set->input_mask;
592 default:
593 qemu_log_mask(LOG_GUEST_ERROR, "%s: no getter for offset 0x%"
594 HWADDR_PRIx"\n", __func__, offset);
595 return 0;
596 };
597 }
598
599 static void aspeed_gpio_write(void *opaque, hwaddr offset, uint64_t data,
600 uint32_t size)
601 {
602 AspeedGPIOState *s = ASPEED_GPIO(opaque);
603 AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
604 const GPIOSetProperties *props;
605 uint64_t idx = -1;
606 const AspeedGPIOReg *reg;
607 GPIOSets *set;
608 uint32_t cleared;
609
610 idx = offset >> 2;
611 if (idx >= GPIO_DEBOUNCE_TIME_1 && idx <= GPIO_DEBOUNCE_TIME_3) {
612 idx -= GPIO_DEBOUNCE_TIME_1;
613 s->debounce_regs[idx] = (uint32_t) data;
614 return;
615 }
616
617 reg = &agc->reg_table[idx];
618 if (reg->set_idx >= agc->nr_gpio_sets) {
619 qemu_log_mask(LOG_GUEST_ERROR, "%s: no setter for offset 0x%"
620 HWADDR_PRIx"\n", __func__, offset);
621 return;
622 }
623
624 set = &s->sets[reg->set_idx];
625 props = &agc->props[reg->set_idx];
626
627 switch (reg->type) {
628 case gpio_reg_data_value:
629 data &= props->output;
630 data = update_value_control_source(set, set->data_value, data);
631 set->data_read = data;
632 aspeed_gpio_update(s, set, data);
633 return;
634 case gpio_reg_direction:
635 /*
636 * where data is the value attempted to be written to the pin:
637 * pin type | input mask | output mask | expected value
638 * ------------------------------------------------------------
639 * bidirectional | 1 | 1 | data
640 * input only | 1 | 0 | 0
641 * output only | 0 | 1 | 1
642 * no pin / gap | 0 | 0 | 0
643 *
644 * which is captured by:
645 * data = ( data | ~input) & output;
646 */
647 data = (data | ~props->input) & props->output;
648 set->direction = update_value_control_source(set, set->direction, data);
649 break;
650 case gpio_reg_int_enable:
651 set->int_enable = update_value_control_source(set, set->int_enable,
652 data);
653 break;
654 case gpio_reg_int_sens_0:
655 set->int_sens_0 = update_value_control_source(set, set->int_sens_0,
656 data);
657 break;
658 case gpio_reg_int_sens_1:
659 set->int_sens_1 = update_value_control_source(set, set->int_sens_1,
660 data);
661 break;
662 case gpio_reg_int_sens_2:
663 set->int_sens_2 = update_value_control_source(set, set->int_sens_2,
664 data);
665 break;
666 case gpio_reg_int_status:
667 cleared = ctpop32(data & set->int_status);
668 if (s->pending && cleared) {
669 assert(s->pending >= cleared);
670 s->pending -= cleared;
671 }
672 set->int_status &= ~data;
673 break;
674 case gpio_reg_reset_tolerant:
675 set->reset_tol = update_value_control_source(set, set->reset_tol,
676 data);
677 return;
678 case gpio_reg_debounce_1:
679 set->debounce_1 = update_value_control_source(set, set->debounce_1,
680 data);
681 return;
682 case gpio_reg_debounce_2:
683 set->debounce_2 = update_value_control_source(set, set->debounce_2,
684 data);
685 return;
686 case gpio_reg_cmd_source_0:
687 set->cmd_source_0 = data & ASPEED_CMD_SRC_MASK;
688 return;
689 case gpio_reg_cmd_source_1:
690 set->cmd_source_1 = data & ASPEED_CMD_SRC_MASK;
691 return;
692 case gpio_reg_data_read:
693 /* Read only register */
694 return;
695 case gpio_reg_input_mask:
696 /*
697 * feeds into interrupt generation
698 * 0: read from data value reg will be updated
699 * 1: read from data value reg will not be updated
700 */
701 set->input_mask = data & props->input;
702 break;
703 default:
704 qemu_log_mask(LOG_GUEST_ERROR, "%s: no setter for offset 0x%"
705 HWADDR_PRIx"\n", __func__, offset);
706 return;
707 }
708 aspeed_gpio_update(s, set, set->data_value);
709 return;
710 }
711
712 static int get_set_idx(AspeedGPIOState *s, const char *group, int *group_idx)
713 {
714 AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
715 int set_idx, g_idx;
716
717 for (set_idx = 0; set_idx < agc->nr_gpio_sets; set_idx++) {
718 const GPIOSetProperties *set_props = &agc->props[set_idx];
719 for (g_idx = 0; g_idx < ASPEED_GROUPS_PER_SET; g_idx++) {
720 if (!strncmp(group, set_props->group_label[g_idx], strlen(group))) {
721 *group_idx = g_idx;
722 return set_idx;
723 }
724 }
725 }
726 return -1;
727 }
728
729 static void aspeed_gpio_get_pin(Object *obj, Visitor *v, const char *name,
730 void *opaque, Error **errp)
731 {
732 int pin = 0xfff;
733 bool level = true;
734 char group[4];
735 AspeedGPIOState *s = ASPEED_GPIO(obj);
736 int set_idx, group_idx = 0;
737
738 if (sscanf(name, "gpio%2[A-Z]%1d", group, &pin) != 2) {
739 /* 1.8V gpio */
740 if (sscanf(name, "gpio%3[18A-E]%1d", group, &pin) != 2) {
741 error_setg(errp, "%s: error reading %s", __func__, name);
742 return;
743 }
744 }
745 set_idx = get_set_idx(s, group, &group_idx);
746 if (set_idx == -1) {
747 error_setg(errp, "%s: invalid group %s", __func__, group);
748 return;
749 }
750 pin = pin + group_idx * GPIOS_PER_GROUP;
751 level = aspeed_gpio_get_pin_level(s, set_idx, pin);
752 visit_type_bool(v, name, &level, errp);
753 }
754
755 static void aspeed_gpio_set_pin(Object *obj, Visitor *v, const char *name,
756 void *opaque, Error **errp)
757 {
758 bool level;
759 int pin = 0xfff;
760 char group[4];
761 AspeedGPIOState *s = ASPEED_GPIO(obj);
762 int set_idx, group_idx = 0;
763
764 if (!visit_type_bool(v, name, &level, errp)) {
765 return;
766 }
767 if (sscanf(name, "gpio%2[A-Z]%1d", group, &pin) != 2) {
768 /* 1.8V gpio */
769 if (sscanf(name, "gpio%3[18A-E]%1d", group, &pin) != 2) {
770 error_setg(errp, "%s: error reading %s", __func__, name);
771 return;
772 }
773 }
774 set_idx = get_set_idx(s, group, &group_idx);
775 if (set_idx == -1) {
776 error_setg(errp, "%s: invalid group %s", __func__, group);
777 return;
778 }
779 pin = pin + group_idx * GPIOS_PER_GROUP;
780 aspeed_gpio_set_pin_level(s, set_idx, pin, level);
781 }
782
783 /****************** Setup functions ******************/
784 static const GPIOSetProperties ast2400_set_props[] = {
785 [0] = {0xffffffff, 0xffffffff, {"A", "B", "C", "D"} },
786 [1] = {0xffffffff, 0xffffffff, {"E", "F", "G", "H"} },
787 [2] = {0xffffffff, 0xffffffff, {"I", "J", "K", "L"} },
788 [3] = {0xffffffff, 0xffffffff, {"M", "N", "O", "P"} },
789 [4] = {0xffffffff, 0xffffffff, {"Q", "R", "S", "T"} },
790 [5] = {0xffffffff, 0x0000ffff, {"U", "V", "W", "X"} },
791 [6] = {0x0000000f, 0x0fffff0f, {"Y", "Z", "AA", "AB"} },
792 };
793
794 static const GPIOSetProperties ast2500_set_props[] = {
795 [0] = {0xffffffff, 0xffffffff, {"A", "B", "C", "D"} },
796 [1] = {0xffffffff, 0xffffffff, {"E", "F", "G", "H"} },
797 [2] = {0xffffffff, 0xffffffff, {"I", "J", "K", "L"} },
798 [3] = {0xffffffff, 0xffffffff, {"M", "N", "O", "P"} },
799 [4] = {0xffffffff, 0xffffffff, {"Q", "R", "S", "T"} },
800 [5] = {0xffffffff, 0x0000ffff, {"U", "V", "W", "X"} },
801 [6] = {0xffffff0f, 0x0fffff0f, {"Y", "Z", "AA", "AB"} },
802 [7] = {0x000000ff, 0x000000ff, {"AC"} },
803 };
804
805 static GPIOSetProperties ast2600_3_6v_set_props[] = {
806 [0] = {0xffffffff, 0xffffffff, {"A", "B", "C", "D"} },
807 [1] = {0xffffffff, 0xffffffff, {"E", "F", "G", "H"} },
808 [2] = {0xffffffff, 0xffffffff, {"I", "J", "K", "L"} },
809 [3] = {0xffffffff, 0xffffffff, {"M", "N", "O", "P"} },
810 [4] = {0xffffffff, 0xffffffff, {"Q", "R", "S", "T"} },
811 [5] = {0xffffffff, 0x0000ffff, {"U", "V", "W", "X"} },
812 [6] = {0xffff0000, 0x0fff0000, {"Y", "Z", "", ""} },
813 };
814
815 static GPIOSetProperties ast2600_1_8v_set_props[] = {
816 [0] = {0xffffffff, 0xffffffff, {"18A", "18B", "18C", "18D"} },
817 [1] = {0x0000000f, 0x0000000f, {"18E"} },
818 };
819
820 static const MemoryRegionOps aspeed_gpio_ops = {
821 .read = aspeed_gpio_read,
822 .write = aspeed_gpio_write,
823 .endianness = DEVICE_LITTLE_ENDIAN,
824 .valid.min_access_size = 4,
825 .valid.max_access_size = 4,
826 };
827
828 static void aspeed_gpio_reset(DeviceState *dev)
829 {
830 AspeedGPIOState *s = ASPEED_GPIO(dev);
831
832 /* TODO: respect the reset tolerance registers */
833 memset(s->sets, 0, sizeof(s->sets));
834 }
835
836 static void aspeed_gpio_realize(DeviceState *dev, Error **errp)
837 {
838 AspeedGPIOState *s = ASPEED_GPIO(dev);
839 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
840 AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
841 int pin;
842
843 /* Interrupt parent line */
844 sysbus_init_irq(sbd, &s->irq);
845
846 /* Individual GPIOs */
847 for (pin = 0; pin < agc->nr_gpio_pins; pin++) {
848 sysbus_init_irq(sbd, &s->gpios[pin]);
849 }
850
851 memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_gpio_ops, s,
852 TYPE_ASPEED_GPIO, GPIO_MAX_MEM_SIZE);
853
854 sysbus_init_mmio(sbd, &s->iomem);
855 }
856
857 static void aspeed_gpio_init(Object *obj)
858 {
859 AspeedGPIOState *s = ASPEED_GPIO(obj);
860 AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
861 int pin;
862
863 for (pin = 0; pin < agc->nr_gpio_pins; pin++) {
864 char *name;
865 int set_idx = pin / GPIOS_PER_SET;
866 int pin_idx = aspeed_adjust_pin(s, pin) - (set_idx * GPIOS_PER_SET);
867 int group_idx = pin_idx >> GPIO_GROUP_SHIFT;
868 const GPIOSetProperties *props = &agc->props[set_idx];
869
870 name = g_strdup_printf("gpio%s%d", props->group_label[group_idx],
871 pin_idx % GPIOS_PER_GROUP);
872 object_property_add(obj, name, "bool", aspeed_gpio_get_pin,
873 aspeed_gpio_set_pin, NULL, NULL);
874 g_free(name);
875 }
876 }
877
878 static const VMStateDescription vmstate_gpio_regs = {
879 .name = TYPE_ASPEED_GPIO"/regs",
880 .version_id = 1,
881 .minimum_version_id = 1,
882 .fields = (VMStateField[]) {
883 VMSTATE_UINT32(data_value, GPIOSets),
884 VMSTATE_UINT32(data_read, GPIOSets),
885 VMSTATE_UINT32(direction, GPIOSets),
886 VMSTATE_UINT32(int_enable, GPIOSets),
887 VMSTATE_UINT32(int_sens_0, GPIOSets),
888 VMSTATE_UINT32(int_sens_1, GPIOSets),
889 VMSTATE_UINT32(int_sens_2, GPIOSets),
890 VMSTATE_UINT32(int_status, GPIOSets),
891 VMSTATE_UINT32(reset_tol, GPIOSets),
892 VMSTATE_UINT32(cmd_source_0, GPIOSets),
893 VMSTATE_UINT32(cmd_source_1, GPIOSets),
894 VMSTATE_UINT32(debounce_1, GPIOSets),
895 VMSTATE_UINT32(debounce_2, GPIOSets),
896 VMSTATE_UINT32(input_mask, GPIOSets),
897 VMSTATE_END_OF_LIST(),
898 }
899 };
900
901 static const VMStateDescription vmstate_aspeed_gpio = {
902 .name = TYPE_ASPEED_GPIO,
903 .version_id = 1,
904 .minimum_version_id = 1,
905 .fields = (VMStateField[]) {
906 VMSTATE_STRUCT_ARRAY(sets, AspeedGPIOState, ASPEED_GPIO_MAX_NR_SETS,
907 1, vmstate_gpio_regs, GPIOSets),
908 VMSTATE_UINT32_ARRAY(debounce_regs, AspeedGPIOState,
909 ASPEED_GPIO_NR_DEBOUNCE_REGS),
910 VMSTATE_END_OF_LIST(),
911 }
912 };
913
914 static void aspeed_gpio_class_init(ObjectClass *klass, void *data)
915 {
916 DeviceClass *dc = DEVICE_CLASS(klass);
917
918 dc->realize = aspeed_gpio_realize;
919 dc->reset = aspeed_gpio_reset;
920 dc->desc = "Aspeed GPIO Controller";
921 dc->vmsd = &vmstate_aspeed_gpio;
922 }
923
924 static void aspeed_gpio_ast2400_class_init(ObjectClass *klass, void *data)
925 {
926 AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass);
927
928 agc->props = ast2400_set_props;
929 agc->nr_gpio_pins = 216;
930 agc->nr_gpio_sets = 7;
931 agc->gap = 196;
932 agc->reg_table = aspeed_3_6v_gpios;
933 }
934
935 static void aspeed_gpio_2500_class_init(ObjectClass *klass, void *data)
936 {
937 AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass);
938
939 agc->props = ast2500_set_props;
940 agc->nr_gpio_pins = 228;
941 agc->nr_gpio_sets = 8;
942 agc->gap = 220;
943 agc->reg_table = aspeed_3_6v_gpios;
944 }
945
946 static void aspeed_gpio_ast2600_3_6v_class_init(ObjectClass *klass, void *data)
947 {
948 AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass);
949
950 agc->props = ast2600_3_6v_set_props;
951 agc->nr_gpio_pins = 208;
952 agc->nr_gpio_sets = 7;
953 agc->reg_table = aspeed_3_6v_gpios;
954 }
955
956 static void aspeed_gpio_ast2600_1_8v_class_init(ObjectClass *klass, void *data)
957 {
958 AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass);
959
960 agc->props = ast2600_1_8v_set_props;
961 agc->nr_gpio_pins = 36;
962 agc->nr_gpio_sets = 2;
963 agc->reg_table = aspeed_1_8v_gpios;
964 }
965
966 static const TypeInfo aspeed_gpio_info = {
967 .name = TYPE_ASPEED_GPIO,
968 .parent = TYPE_SYS_BUS_DEVICE,
969 .instance_size = sizeof(AspeedGPIOState),
970 .class_size = sizeof(AspeedGPIOClass),
971 .class_init = aspeed_gpio_class_init,
972 .abstract = true,
973 };
974
975 static const TypeInfo aspeed_gpio_ast2400_info = {
976 .name = TYPE_ASPEED_GPIO "-ast2400",
977 .parent = TYPE_ASPEED_GPIO,
978 .class_init = aspeed_gpio_ast2400_class_init,
979 .instance_init = aspeed_gpio_init,
980 };
981
982 static const TypeInfo aspeed_gpio_ast2500_info = {
983 .name = TYPE_ASPEED_GPIO "-ast2500",
984 .parent = TYPE_ASPEED_GPIO,
985 .class_init = aspeed_gpio_2500_class_init,
986 .instance_init = aspeed_gpio_init,
987 };
988
989 static const TypeInfo aspeed_gpio_ast2600_3_6v_info = {
990 .name = TYPE_ASPEED_GPIO "-ast2600",
991 .parent = TYPE_ASPEED_GPIO,
992 .class_init = aspeed_gpio_ast2600_3_6v_class_init,
993 .instance_init = aspeed_gpio_init,
994 };
995
996 static const TypeInfo aspeed_gpio_ast2600_1_8v_info = {
997 .name = TYPE_ASPEED_GPIO "-ast2600-1_8v",
998 .parent = TYPE_ASPEED_GPIO,
999 .class_init = aspeed_gpio_ast2600_1_8v_class_init,
1000 .instance_init = aspeed_gpio_init,
1001 };
1002
1003 static void aspeed_gpio_register_types(void)
1004 {
1005 type_register_static(&aspeed_gpio_info);
1006 type_register_static(&aspeed_gpio_ast2400_info);
1007 type_register_static(&aspeed_gpio_ast2500_info);
1008 type_register_static(&aspeed_gpio_ast2600_3_6v_info);
1009 type_register_static(&aspeed_gpio_ast2600_1_8v_info);
1010 }
1011
1012 type_init(aspeed_gpio_register_types);
AR7 emulation for QEMU