Merge remote-tracking branch 'remotes/philmd-gitlab/tags/renesas-20201027' into staging
[qemu.git] / hw / arm / z2.c
1 /*
2 * PXA270-based Zipit Z2 device
3 *
4 * Copyright (c) 2011 by Vasily Khoruzhick <anarsoul@gmail.com>
5 *
6 * Code is based on mainstone platform.
7 *
8 * This code is licensed under the GNU GPL v2.
9 *
10 * Contributions after 2012-01-13 are licensed under the terms of the
11 * GNU GPL, version 2 or (at your option) any later version.
12 */
13
14 #include "qemu/osdep.h"
15 #include "hw/arm/pxa.h"
16 #include "hw/arm/boot.h"
17 #include "hw/i2c/i2c.h"
18 #include "hw/irq.h"
19 #include "hw/ssi/ssi.h"
20 #include "migration/vmstate.h"
21 #include "hw/boards.h"
22 #include "hw/block/flash.h"
23 #include "ui/console.h"
24 #include "hw/audio/wm8750.h"
25 #include "audio/audio.h"
26 #include "exec/address-spaces.h"
27 #include "sysemu/qtest.h"
28 #include "cpu.h"
29 #include "qom/object.h"
30
31 #ifdef DEBUG_Z2
32 #define DPRINTF(fmt, ...) \
33 printf(fmt, ## __VA_ARGS__)
34 #else
35 #define DPRINTF(fmt, ...)
36 #endif
37
38 static const struct keymap map[0x100] = {
39 [0 ... 0xff] = { -1, -1 },
40 [0x3b] = {0, 0}, /* Option = F1 */
41 [0xc8] = {0, 1}, /* Up */
42 [0xd0] = {0, 2}, /* Down */
43 [0xcb] = {0, 3}, /* Left */
44 [0xcd] = {0, 4}, /* Right */
45 [0xcf] = {0, 5}, /* End */
46 [0x0d] = {0, 6}, /* KPPLUS */
47 [0xc7] = {1, 0}, /* Home */
48 [0x10] = {1, 1}, /* Q */
49 [0x17] = {1, 2}, /* I */
50 [0x22] = {1, 3}, /* G */
51 [0x2d] = {1, 4}, /* X */
52 [0x1c] = {1, 5}, /* Enter */
53 [0x0c] = {1, 6}, /* KPMINUS */
54 [0xc9] = {2, 0}, /* PageUp */
55 [0x11] = {2, 1}, /* W */
56 [0x18] = {2, 2}, /* O */
57 [0x23] = {2, 3}, /* H */
58 [0x2e] = {2, 4}, /* C */
59 [0x38] = {2, 5}, /* LeftAlt */
60 [0xd1] = {3, 0}, /* PageDown */
61 [0x12] = {3, 1}, /* E */
62 [0x19] = {3, 2}, /* P */
63 [0x24] = {3, 3}, /* J */
64 [0x2f] = {3, 4}, /* V */
65 [0x2a] = {3, 5}, /* LeftShift */
66 [0x01] = {4, 0}, /* Esc */
67 [0x13] = {4, 1}, /* R */
68 [0x1e] = {4, 2}, /* A */
69 [0x25] = {4, 3}, /* K */
70 [0x30] = {4, 4}, /* B */
71 [0x1d] = {4, 5}, /* LeftCtrl */
72 [0x0f] = {5, 0}, /* Tab */
73 [0x14] = {5, 1}, /* T */
74 [0x1f] = {5, 2}, /* S */
75 [0x26] = {5, 3}, /* L */
76 [0x31] = {5, 4}, /* N */
77 [0x39] = {5, 5}, /* Space */
78 [0x3c] = {6, 0}, /* Stop = F2 */
79 [0x15] = {6, 1}, /* Y */
80 [0x20] = {6, 2}, /* D */
81 [0x0e] = {6, 3}, /* Backspace */
82 [0x32] = {6, 4}, /* M */
83 [0x33] = {6, 5}, /* Comma */
84 [0x3d] = {7, 0}, /* Play = F3 */
85 [0x16] = {7, 1}, /* U */
86 [0x21] = {7, 2}, /* F */
87 [0x2c] = {7, 3}, /* Z */
88 [0x27] = {7, 4}, /* Semicolon */
89 [0x34] = {7, 5}, /* Dot */
90 };
91
92 #define Z2_RAM_SIZE 0x02000000
93 #define Z2_FLASH_BASE 0x00000000
94 #define Z2_FLASH_SIZE 0x00800000
95
96 static struct arm_boot_info z2_binfo = {
97 .loader_start = PXA2XX_SDRAM_BASE,
98 .ram_size = Z2_RAM_SIZE,
99 };
100
101 #define Z2_GPIO_SD_DETECT 96
102 #define Z2_GPIO_AC_IN 0
103 #define Z2_GPIO_KEY_ON 1
104 #define Z2_GPIO_LCD_CS 88
105
106 struct ZipitLCD {
107 SSISlave ssidev;
108 int32_t selected;
109 int32_t enabled;
110 uint8_t buf[3];
111 uint32_t cur_reg;
112 int pos;
113 };
114
115 #define TYPE_ZIPIT_LCD "zipit-lcd"
116 OBJECT_DECLARE_SIMPLE_TYPE(ZipitLCD, ZIPIT_LCD)
117
118 static uint32_t zipit_lcd_transfer(SSISlave *dev, uint32_t value)
119 {
120 ZipitLCD *z = ZIPIT_LCD(dev);
121 uint16_t val;
122 if (z->selected) {
123 z->buf[z->pos] = value & 0xff;
124 z->pos++;
125 }
126 if (z->pos == 3) {
127 switch (z->buf[0]) {
128 case 0x74:
129 DPRINTF("%s: reg: 0x%.2x\n", __func__, z->buf[2]);
130 z->cur_reg = z->buf[2];
131 break;
132 case 0x76:
133 val = z->buf[1] << 8 | z->buf[2];
134 DPRINTF("%s: value: 0x%.4x\n", __func__, val);
135 if (z->cur_reg == 0x22 && val == 0x0000) {
136 z->enabled = 1;
137 printf("%s: LCD enabled\n", __func__);
138 } else if (z->cur_reg == 0x10 && val == 0x0000) {
139 z->enabled = 0;
140 printf("%s: LCD disabled\n", __func__);
141 }
142 break;
143 default:
144 DPRINTF("%s: unknown command!\n", __func__);
145 break;
146 }
147 z->pos = 0;
148 }
149 return 0;
150 }
151
152 static void z2_lcd_cs(void *opaque, int line, int level)
153 {
154 ZipitLCD *z2_lcd = opaque;
155 z2_lcd->selected = !level;
156 }
157
158 static void zipit_lcd_realize(SSISlave *dev, Error **errp)
159 {
160 ZipitLCD *z = ZIPIT_LCD(dev);
161 z->selected = 0;
162 z->enabled = 0;
163 z->pos = 0;
164 }
165
166 static VMStateDescription vmstate_zipit_lcd_state = {
167 .name = "zipit-lcd",
168 .version_id = 2,
169 .minimum_version_id = 2,
170 .fields = (VMStateField[]) {
171 VMSTATE_SSI_SLAVE(ssidev, ZipitLCD),
172 VMSTATE_INT32(selected, ZipitLCD),
173 VMSTATE_INT32(enabled, ZipitLCD),
174 VMSTATE_BUFFER(buf, ZipitLCD),
175 VMSTATE_UINT32(cur_reg, ZipitLCD),
176 VMSTATE_INT32(pos, ZipitLCD),
177 VMSTATE_END_OF_LIST(),
178 }
179 };
180
181 static void zipit_lcd_class_init(ObjectClass *klass, void *data)
182 {
183 DeviceClass *dc = DEVICE_CLASS(klass);
184 SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
185
186 k->realize = zipit_lcd_realize;
187 k->transfer = zipit_lcd_transfer;
188 dc->vmsd = &vmstate_zipit_lcd_state;
189 }
190
191 static const TypeInfo zipit_lcd_info = {
192 .name = TYPE_ZIPIT_LCD,
193 .parent = TYPE_SSI_SLAVE,
194 .instance_size = sizeof(ZipitLCD),
195 .class_init = zipit_lcd_class_init,
196 };
197
198 #define TYPE_AER915 "aer915"
199 OBJECT_DECLARE_SIMPLE_TYPE(AER915State, AER915)
200
201 struct AER915State {
202 I2CSlave parent_obj;
203
204 int len;
205 uint8_t buf[3];
206 };
207
208 static int aer915_send(I2CSlave *i2c, uint8_t data)
209 {
210 AER915State *s = AER915(i2c);
211
212 s->buf[s->len] = data;
213 if (s->len++ > 2) {
214 DPRINTF("%s: message too long (%i bytes)\n",
215 __func__, s->len);
216 return 1;
217 }
218
219 if (s->len == 2) {
220 DPRINTF("%s: reg %d value 0x%02x\n", __func__,
221 s->buf[0], s->buf[1]);
222 }
223
224 return 0;
225 }
226
227 static int aer915_event(I2CSlave *i2c, enum i2c_event event)
228 {
229 AER915State *s = AER915(i2c);
230
231 switch (event) {
232 case I2C_START_SEND:
233 s->len = 0;
234 break;
235 case I2C_START_RECV:
236 if (s->len != 1) {
237 DPRINTF("%s: short message!?\n", __func__);
238 }
239 break;
240 case I2C_FINISH:
241 break;
242 default:
243 break;
244 }
245
246 return 0;
247 }
248
249 static uint8_t aer915_recv(I2CSlave *slave)
250 {
251 AER915State *s = AER915(slave);
252 int retval = 0x00;
253
254 switch (s->buf[0]) {
255 /* Return hardcoded battery voltage,
256 * 0xf0 means ~4.1V
257 */
258 case 0x02:
259 retval = 0xf0;
260 break;
261 /* Return 0x00 for other regs,
262 * we don't know what they are for,
263 * anyway they return 0x00 on real hardware.
264 */
265 default:
266 break;
267 }
268
269 return retval;
270 }
271
272 static VMStateDescription vmstate_aer915_state = {
273 .name = "aer915",
274 .version_id = 1,
275 .minimum_version_id = 1,
276 .fields = (VMStateField[]) {
277 VMSTATE_INT32(len, AER915State),
278 VMSTATE_BUFFER(buf, AER915State),
279 VMSTATE_END_OF_LIST(),
280 }
281 };
282
283 static void aer915_class_init(ObjectClass *klass, void *data)
284 {
285 DeviceClass *dc = DEVICE_CLASS(klass);
286 I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
287
288 k->event = aer915_event;
289 k->recv = aer915_recv;
290 k->send = aer915_send;
291 dc->vmsd = &vmstate_aer915_state;
292 }
293
294 static const TypeInfo aer915_info = {
295 .name = TYPE_AER915,
296 .parent = TYPE_I2C_SLAVE,
297 .instance_size = sizeof(AER915State),
298 .class_init = aer915_class_init,
299 };
300
301 static void z2_init(MachineState *machine)
302 {
303 MemoryRegion *address_space_mem = get_system_memory();
304 uint32_t sector_len = 0x10000;
305 PXA2xxState *mpu;
306 DriveInfo *dinfo;
307 void *z2_lcd;
308 I2CBus *bus;
309 DeviceState *wm;
310
311 /* Setup CPU & memory */
312 mpu = pxa270_init(address_space_mem, z2_binfo.ram_size, machine->cpu_type);
313
314 dinfo = drive_get(IF_PFLASH, 0, 0);
315 if (!pflash_cfi01_register(Z2_FLASH_BASE, "z2.flash0", Z2_FLASH_SIZE,
316 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
317 sector_len, 4, 0, 0, 0, 0, 0)) {
318 error_report("Error registering flash memory");
319 exit(1);
320 }
321
322 /* setup keypad */
323 pxa27x_register_keypad(mpu->kp, map, 0x100);
324
325 /* MMC/SD host */
326 pxa2xx_mmci_handlers(mpu->mmc,
327 NULL,
328 qdev_get_gpio_in(mpu->gpio, Z2_GPIO_SD_DETECT));
329
330 type_register_static(&zipit_lcd_info);
331 type_register_static(&aer915_info);
332 z2_lcd = ssi_create_slave(mpu->ssp[1], TYPE_ZIPIT_LCD);
333 bus = pxa2xx_i2c_bus(mpu->i2c[0]);
334 i2c_slave_create_simple(bus, TYPE_AER915, 0x55);
335 wm = DEVICE(i2c_slave_create_simple(bus, TYPE_WM8750, 0x1b));
336 mpu->i2s->opaque = wm;
337 mpu->i2s->codec_out = wm8750_dac_dat;
338 mpu->i2s->codec_in = wm8750_adc_dat;
339 wm8750_data_req_set(wm, mpu->i2s->data_req, mpu->i2s);
340
341 qdev_connect_gpio_out(mpu->gpio, Z2_GPIO_LCD_CS,
342 qemu_allocate_irq(z2_lcd_cs, z2_lcd, 0));
343
344 z2_binfo.board_id = 0x6dd;
345 arm_load_kernel(mpu->cpu, machine, &z2_binfo);
346 }
347
348 static void z2_machine_init(MachineClass *mc)
349 {
350 mc->desc = "Zipit Z2 (PXA27x)";
351 mc->init = z2_init;
352 mc->ignore_memory_transaction_failures = true;
353 mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
354 }
355
356 DEFINE_MACHINE("z2", z2_machine_init)