Update version for v2.3.0-rc4 release
[qemu.git] / hw / arm / z2.c
blob17355479a17d5f8d7b2f3569a7525d5f72bb0645
1 /*
2 * PXA270-based Zipit Z2 device
4 * Copyright (c) 2011 by Vasily Khoruzhick <anarsoul@gmail.com>
6 * Code is based on mainstone platform.
8 * This code is licensed under the GNU GPL v2.
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.
14 #include "hw/hw.h"
15 #include "hw/arm/pxa.h"
16 #include "hw/arm/arm.h"
17 #include "hw/devices.h"
18 #include "hw/i2c/i2c.h"
19 #include "hw/ssi.h"
20 #include "hw/boards.h"
21 #include "sysemu/sysemu.h"
22 #include "hw/block/flash.h"
23 #include "sysemu/block-backend.h"
24 #include "ui/console.h"
25 #include "audio/audio.h"
26 #include "exec/address-spaces.h"
27 #include "sysemu/qtest.h"
29 #ifdef DEBUG_Z2
30 #define DPRINTF(fmt, ...) \
31 printf(fmt, ## __VA_ARGS__)
32 #else
33 #define DPRINTF(fmt, ...)
34 #endif
36 static const struct keymap map[0x100] = {
37 [0 ... 0xff] = { -1, -1 },
38 [0x3b] = {0, 0}, /* Option = F1 */
39 [0xc8] = {0, 1}, /* Up */
40 [0xd0] = {0, 2}, /* Down */
41 [0xcb] = {0, 3}, /* Left */
42 [0xcd] = {0, 4}, /* Right */
43 [0xcf] = {0, 5}, /* End */
44 [0x0d] = {0, 6}, /* KPPLUS */
45 [0xc7] = {1, 0}, /* Home */
46 [0x10] = {1, 1}, /* Q */
47 [0x17] = {1, 2}, /* I */
48 [0x22] = {1, 3}, /* G */
49 [0x2d] = {1, 4}, /* X */
50 [0x1c] = {1, 5}, /* Enter */
51 [0x0c] = {1, 6}, /* KPMINUS */
52 [0xc9] = {2, 0}, /* PageUp */
53 [0x11] = {2, 1}, /* W */
54 [0x18] = {2, 2}, /* O */
55 [0x23] = {2, 3}, /* H */
56 [0x2e] = {2, 4}, /* C */
57 [0x38] = {2, 5}, /* LeftAlt */
58 [0xd1] = {3, 0}, /* PageDown */
59 [0x12] = {3, 1}, /* E */
60 [0x19] = {3, 2}, /* P */
61 [0x24] = {3, 3}, /* J */
62 [0x2f] = {3, 4}, /* V */
63 [0x2a] = {3, 5}, /* LeftShift */
64 [0x01] = {4, 0}, /* Esc */
65 [0x13] = {4, 1}, /* R */
66 [0x1e] = {4, 2}, /* A */
67 [0x25] = {4, 3}, /* K */
68 [0x30] = {4, 4}, /* B */
69 [0x1d] = {4, 5}, /* LeftCtrl */
70 [0x0f] = {5, 0}, /* Tab */
71 [0x14] = {5, 1}, /* T */
72 [0x1f] = {5, 2}, /* S */
73 [0x26] = {5, 3}, /* L */
74 [0x31] = {5, 4}, /* N */
75 [0x39] = {5, 5}, /* Space */
76 [0x3c] = {6, 0}, /* Stop = F2 */
77 [0x15] = {6, 1}, /* Y */
78 [0x20] = {6, 2}, /* D */
79 [0x0e] = {6, 3}, /* Backspace */
80 [0x32] = {6, 4}, /* M */
81 [0x33] = {6, 5}, /* Comma */
82 [0x3d] = {7, 0}, /* Play = F3 */
83 [0x16] = {7, 1}, /* U */
84 [0x21] = {7, 2}, /* F */
85 [0x2c] = {7, 3}, /* Z */
86 [0x27] = {7, 4}, /* Semicolon */
87 [0x34] = {7, 5}, /* Dot */
90 #define Z2_RAM_SIZE 0x02000000
91 #define Z2_FLASH_BASE 0x00000000
92 #define Z2_FLASH_SIZE 0x00800000
94 static struct arm_boot_info z2_binfo = {
95 .loader_start = PXA2XX_SDRAM_BASE,
96 .ram_size = Z2_RAM_SIZE,
99 #define Z2_GPIO_SD_DETECT 96
100 #define Z2_GPIO_AC_IN 0
101 #define Z2_GPIO_KEY_ON 1
102 #define Z2_GPIO_LCD_CS 88
104 typedef struct {
105 SSISlave ssidev;
106 int32_t selected;
107 int32_t enabled;
108 uint8_t buf[3];
109 uint32_t cur_reg;
110 int pos;
111 } ZipitLCD;
113 static uint32_t zipit_lcd_transfer(SSISlave *dev, uint32_t value)
115 ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev);
116 uint16_t val;
117 if (z->selected) {
118 z->buf[z->pos] = value & 0xff;
119 z->pos++;
121 if (z->pos == 3) {
122 switch (z->buf[0]) {
123 case 0x74:
124 DPRINTF("%s: reg: 0x%.2x\n", __func__, z->buf[2]);
125 z->cur_reg = z->buf[2];
126 break;
127 case 0x76:
128 val = z->buf[1] << 8 | z->buf[2];
129 DPRINTF("%s: value: 0x%.4x\n", __func__, val);
130 if (z->cur_reg == 0x22 && val == 0x0000) {
131 z->enabled = 1;
132 printf("%s: LCD enabled\n", __func__);
133 } else if (z->cur_reg == 0x10 && val == 0x0000) {
134 z->enabled = 0;
135 printf("%s: LCD disabled\n", __func__);
137 break;
138 default:
139 DPRINTF("%s: unknown command!\n", __func__);
140 break;
142 z->pos = 0;
144 return 0;
147 static void z2_lcd_cs(void *opaque, int line, int level)
149 ZipitLCD *z2_lcd = opaque;
150 z2_lcd->selected = !level;
153 static int zipit_lcd_init(SSISlave *dev)
155 ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev);
156 z->selected = 0;
157 z->enabled = 0;
158 z->pos = 0;
160 return 0;
163 static VMStateDescription vmstate_zipit_lcd_state = {
164 .name = "zipit-lcd",
165 .version_id = 2,
166 .minimum_version_id = 2,
167 .fields = (VMStateField[]) {
168 VMSTATE_SSI_SLAVE(ssidev, ZipitLCD),
169 VMSTATE_INT32(selected, ZipitLCD),
170 VMSTATE_INT32(enabled, ZipitLCD),
171 VMSTATE_BUFFER(buf, ZipitLCD),
172 VMSTATE_UINT32(cur_reg, ZipitLCD),
173 VMSTATE_INT32(pos, ZipitLCD),
174 VMSTATE_END_OF_LIST(),
178 static void zipit_lcd_class_init(ObjectClass *klass, void *data)
180 DeviceClass *dc = DEVICE_CLASS(klass);
181 SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
183 k->init = zipit_lcd_init;
184 k->transfer = zipit_lcd_transfer;
185 dc->vmsd = &vmstate_zipit_lcd_state;
188 static const TypeInfo zipit_lcd_info = {
189 .name = "zipit-lcd",
190 .parent = TYPE_SSI_SLAVE,
191 .instance_size = sizeof(ZipitLCD),
192 .class_init = zipit_lcd_class_init,
195 #define TYPE_AER915 "aer915"
196 #define AER915(obj) OBJECT_CHECK(AER915State, (obj), TYPE_AER915)
198 typedef struct AER915State {
199 I2CSlave parent_obj;
201 int len;
202 uint8_t buf[3];
203 } AER915State;
205 static int aer915_send(I2CSlave *i2c, uint8_t data)
207 AER915State *s = AER915(i2c);
209 s->buf[s->len] = data;
210 if (s->len++ > 2) {
211 DPRINTF("%s: message too long (%i bytes)\n",
212 __func__, s->len);
213 return 1;
216 if (s->len == 2) {
217 DPRINTF("%s: reg %d value 0x%02x\n", __func__,
218 s->buf[0], s->buf[1]);
221 return 0;
224 static void aer915_event(I2CSlave *i2c, enum i2c_event event)
226 AER915State *s = AER915(i2c);
228 switch (event) {
229 case I2C_START_SEND:
230 s->len = 0;
231 break;
232 case I2C_START_RECV:
233 if (s->len != 1) {
234 DPRINTF("%s: short message!?\n", __func__);
236 break;
237 case I2C_FINISH:
238 break;
239 default:
240 break;
244 static int aer915_recv(I2CSlave *slave)
246 AER915State *s = AER915(slave);
247 int retval = 0x00;
249 switch (s->buf[0]) {
250 /* Return hardcoded battery voltage,
251 * 0xf0 means ~4.1V
253 case 0x02:
254 retval = 0xf0;
255 break;
256 /* Return 0x00 for other regs,
257 * we don't know what they are for,
258 * anyway they return 0x00 on real hardware.
260 default:
261 break;
264 return retval;
267 static int aer915_init(I2CSlave *i2c)
269 /* Nothing to do. */
270 return 0;
273 static VMStateDescription vmstate_aer915_state = {
274 .name = "aer915",
275 .version_id = 1,
276 .minimum_version_id = 1,
277 .fields = (VMStateField[]) {
278 VMSTATE_INT32(len, AER915State),
279 VMSTATE_BUFFER(buf, AER915State),
280 VMSTATE_END_OF_LIST(),
284 static void aer915_class_init(ObjectClass *klass, void *data)
286 DeviceClass *dc = DEVICE_CLASS(klass);
287 I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
289 k->init = aer915_init;
290 k->event = aer915_event;
291 k->recv = aer915_recv;
292 k->send = aer915_send;
293 dc->vmsd = &vmstate_aer915_state;
296 static const TypeInfo aer915_info = {
297 .name = TYPE_AER915,
298 .parent = TYPE_I2C_SLAVE,
299 .instance_size = sizeof(AER915State),
300 .class_init = aer915_class_init,
303 static void z2_init(MachineState *machine)
305 const char *cpu_model = machine->cpu_model;
306 const char *kernel_filename = machine->kernel_filename;
307 const char *kernel_cmdline = machine->kernel_cmdline;
308 const char *initrd_filename = machine->initrd_filename;
309 MemoryRegion *address_space_mem = get_system_memory();
310 uint32_t sector_len = 0x10000;
311 PXA2xxState *mpu;
312 DriveInfo *dinfo;
313 int be;
314 void *z2_lcd;
315 I2CBus *bus;
316 DeviceState *wm;
318 if (!cpu_model) {
319 cpu_model = "pxa270-c5";
322 /* Setup CPU & memory */
323 mpu = pxa270_init(address_space_mem, z2_binfo.ram_size, cpu_model);
325 #ifdef TARGET_WORDS_BIGENDIAN
326 be = 1;
327 #else
328 be = 0;
329 #endif
330 dinfo = drive_get(IF_PFLASH, 0, 0);
331 if (!dinfo && !qtest_enabled()) {
332 fprintf(stderr, "Flash image must be given with the "
333 "'pflash' parameter\n");
334 exit(1);
337 if (!pflash_cfi01_register(Z2_FLASH_BASE,
338 NULL, "z2.flash0", Z2_FLASH_SIZE,
339 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
340 sector_len, Z2_FLASH_SIZE / sector_len,
341 4, 0, 0, 0, 0, be)) {
342 fprintf(stderr, "qemu: Error registering flash memory.\n");
343 exit(1);
346 /* setup keypad */
347 pxa27x_register_keypad(mpu->kp, map, 0x100);
349 /* MMC/SD host */
350 pxa2xx_mmci_handlers(mpu->mmc,
351 NULL,
352 qdev_get_gpio_in(mpu->gpio, Z2_GPIO_SD_DETECT));
354 type_register_static(&zipit_lcd_info);
355 type_register_static(&aer915_info);
356 z2_lcd = ssi_create_slave(mpu->ssp[1], "zipit-lcd");
357 bus = pxa2xx_i2c_bus(mpu->i2c[0]);
358 i2c_create_slave(bus, TYPE_AER915, 0x55);
359 wm = i2c_create_slave(bus, "wm8750", 0x1b);
360 mpu->i2s->opaque = wm;
361 mpu->i2s->codec_out = wm8750_dac_dat;
362 mpu->i2s->codec_in = wm8750_adc_dat;
363 wm8750_data_req_set(wm, mpu->i2s->data_req, mpu->i2s);
365 qdev_connect_gpio_out(mpu->gpio, Z2_GPIO_LCD_CS,
366 qemu_allocate_irq(z2_lcd_cs, z2_lcd, 0));
368 z2_binfo.kernel_filename = kernel_filename;
369 z2_binfo.kernel_cmdline = kernel_cmdline;
370 z2_binfo.initrd_filename = initrd_filename;
371 z2_binfo.board_id = 0x6dd;
372 arm_load_kernel(mpu->cpu, &z2_binfo);
375 static QEMUMachine z2_machine = {
376 .name = "z2",
377 .desc = "Zipit Z2 (PXA27x)",
378 .init = z2_init,
381 static void z2_machine_init(void)
383 qemu_register_machine(&z2_machine);
386 machine_init(z2_machine_init);