/* * PXA270-based Zipit Z2 device * * Copyright (c) 2011 by Vasily Khoruzhick * * Code is based on mainstone platform. * * This code is licensed under the GNU GPL v2. * * Contributions after 2012-01-13 are licensed under the terms of the * GNU GPL, version 2 or (at your option) any later version. */ #include "hw/hw.h" #include "hw/arm/pxa.h" #include "hw/arm/arm.h" #include "hw/devices.h" #include "hw/i2c/i2c.h" #include "hw/ssi.h" #include "hw/boards.h" #include "sysemu/sysemu.h" #include "hw/block/flash.h" #include "sysemu/blockdev.h" #include "ui/console.h" #include "audio/audio.h" #include "exec/address-spaces.h" #include "sysemu/qtest.h" #ifdef DEBUG_Z2 #define DPRINTF(fmt, ...) \ printf(fmt, ## __VA_ARGS__) #else #define DPRINTF(fmt, ...) #endif static const struct keymap map[0x100] = { [0 ... 0xff] = { -1, -1 }, [0x3b] = {0, 0}, /* Option = F1 */ [0xc8] = {0, 1}, /* Up */ [0xd0] = {0, 2}, /* Down */ [0xcb] = {0, 3}, /* Left */ [0xcd] = {0, 4}, /* Right */ [0xcf] = {0, 5}, /* End */ [0x0d] = {0, 6}, /* KPPLUS */ [0xc7] = {1, 0}, /* Home */ [0x10] = {1, 1}, /* Q */ [0x17] = {1, 2}, /* I */ [0x22] = {1, 3}, /* G */ [0x2d] = {1, 4}, /* X */ [0x1c] = {1, 5}, /* Enter */ [0x0c] = {1, 6}, /* KPMINUS */ [0xc9] = {2, 0}, /* PageUp */ [0x11] = {2, 1}, /* W */ [0x18] = {2, 2}, /* O */ [0x23] = {2, 3}, /* H */ [0x2e] = {2, 4}, /* C */ [0x38] = {2, 5}, /* LeftAlt */ [0xd1] = {3, 0}, /* PageDown */ [0x12] = {3, 1}, /* E */ [0x19] = {3, 2}, /* P */ [0x24] = {3, 3}, /* J */ [0x2f] = {3, 4}, /* V */ [0x2a] = {3, 5}, /* LeftShift */ [0x01] = {4, 0}, /* Esc */ [0x13] = {4, 1}, /* R */ [0x1e] = {4, 2}, /* A */ [0x25] = {4, 3}, /* K */ [0x30] = {4, 4}, /* B */ [0x1d] = {4, 5}, /* LeftCtrl */ [0x0f] = {5, 0}, /* Tab */ [0x14] = {5, 1}, /* T */ [0x1f] = {5, 2}, /* S */ [0x26] = {5, 3}, /* L */ [0x31] = {5, 4}, /* N */ [0x39] = {5, 5}, /* Space */ [0x3c] = {6, 0}, /* Stop = F2 */ [0x15] = {6, 1}, /* Y */ [0x20] = {6, 2}, /* D */ [0x0e] = {6, 3}, /* Backspace */ [0x32] = {6, 4}, /* M */ [0x33] = {6, 5}, /* Comma */ [0x3d] = {7, 0}, /* Play = F3 */ [0x16] = {7, 1}, /* U */ [0x21] = {7, 2}, /* F */ [0x2c] = {7, 3}, /* Z */ [0x27] = {7, 4}, /* Semicolon */ [0x34] = {7, 5}, /* Dot */ }; #define Z2_RAM_SIZE 0x02000000 #define Z2_FLASH_BASE 0x00000000 #define Z2_FLASH_SIZE 0x00800000 static struct arm_boot_info z2_binfo = { .loader_start = PXA2XX_SDRAM_BASE, .ram_size = Z2_RAM_SIZE, }; #define Z2_GPIO_SD_DETECT 96 #define Z2_GPIO_AC_IN 0 #define Z2_GPIO_KEY_ON 1 #define Z2_GPIO_LCD_CS 88 typedef struct { SSISlave ssidev; int32_t selected; int32_t enabled; uint8_t buf[3]; uint32_t cur_reg; int pos; } ZipitLCD; static uint32_t zipit_lcd_transfer(SSISlave *dev, uint32_t value) { ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev); uint16_t val; if (z->selected) { z->buf[z->pos] = value & 0xff; z->pos++; } if (z->pos == 3) { switch (z->buf[0]) { case 0x74: DPRINTF("%s: reg: 0x%.2x\n", __func__, z->buf[2]); z->cur_reg = z->buf[2]; break; case 0x76: val = z->buf[1] << 8 | z->buf[2]; DPRINTF("%s: value: 0x%.4x\n", __func__, val); if (z->cur_reg == 0x22 && val == 0x0000) { z->enabled = 1; printf("%s: LCD enabled\n", __func__); } else if (z->cur_reg == 0x10 && val == 0x0000) { z->enabled = 0; printf("%s: LCD disabled\n", __func__); } break; default: DPRINTF("%s: unknown command!\n", __func__); break; } z->pos = 0; } return 0; } static void z2_lcd_cs(void *opaque, int line, int level) { ZipitLCD *z2_lcd = opaque; z2_lcd->selected = !level; } static int zipit_lcd_init(SSISlave *dev) { ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev); z->selected = 0; z->enabled = 0; z->pos = 0; return 0; } static VMStateDescription vmstate_zipit_lcd_state = { .name = "zipit-lcd", .version_id = 2, .minimum_version_id = 2, .fields = (VMStateField[]) { VMSTATE_SSI_SLAVE(ssidev, ZipitLCD), VMSTATE_INT32(selected, ZipitLCD), VMSTATE_INT32(enabled, ZipitLCD), VMSTATE_BUFFER(buf, ZipitLCD), VMSTATE_UINT32(cur_reg, ZipitLCD), VMSTATE_INT32(pos, ZipitLCD), VMSTATE_END_OF_LIST(), } }; static void zipit_lcd_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); SSISlaveClass *k = SSI_SLAVE_CLASS(klass); k->init = zipit_lcd_init; k->transfer = zipit_lcd_transfer; dc->vmsd = &vmstate_zipit_lcd_state; } static const TypeInfo zipit_lcd_info = { .name = "zipit-lcd", .parent = TYPE_SSI_SLAVE, .instance_size = sizeof(ZipitLCD), .class_init = zipit_lcd_class_init, }; #define TYPE_AER915 "aer915" #define AER915(obj) OBJECT_CHECK(AER915State, (obj), TYPE_AER915) typedef struct AER915State { I2CSlave parent_obj; int len; uint8_t buf[3]; } AER915State; static int aer915_send(I2CSlave *i2c, uint8_t data) { AER915State *s = AER915(i2c); s->buf[s->len] = data; if (s->len++ > 2) { DPRINTF("%s: message too long (%i bytes)\n", __func__, s->len); return 1; } if (s->len == 2) { DPRINTF("%s: reg %d value 0x%02x\n", __func__, s->buf[0], s->buf[1]); } return 0; } static void aer915_event(I2CSlave *i2c, enum i2c_event event) { AER915State *s = AER915(i2c); switch (event) { case I2C_START_SEND: s->len = 0; break; case I2C_START_RECV: if (s->len != 1) { DPRINTF("%s: short message!?\n", __func__); } break; case I2C_FINISH: break; default: break; } } static int aer915_recv(I2CSlave *slave) { AER915State *s = AER915(slave); int retval = 0x00; switch (s->buf[0]) { /* Return hardcoded battery voltage, * 0xf0 means ~4.1V */ case 0x02: retval = 0xf0; break; /* Return 0x00 for other regs, * we don't know what they are for, * anyway they return 0x00 on real hardware. */ default: break; } return retval; } static int aer915_init(I2CSlave *i2c) { /* Nothing to do. */ return 0; } static VMStateDescription vmstate_aer915_state = { .name = "aer915", .version_id = 1, .minimum_version_id = 1, .fields = (VMStateField[]) { VMSTATE_INT32(len, AER915State), VMSTATE_BUFFER(buf, AER915State), VMSTATE_END_OF_LIST(), } }; static void aer915_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); k->init = aer915_init; k->event = aer915_event; k->recv = aer915_recv; k->send = aer915_send; dc->vmsd = &vmstate_aer915_state; } static const TypeInfo aer915_info = { .name = TYPE_AER915, .parent = TYPE_I2C_SLAVE, .instance_size = sizeof(AER915State), .class_init = aer915_class_init, }; static void z2_init(QEMUMachineInitArgs *args) { const char *cpu_model = args->cpu_model; const char *kernel_filename = args->kernel_filename; const char *kernel_cmdline = args->kernel_cmdline; const char *initrd_filename = args->initrd_filename; MemoryRegion *address_space_mem = get_system_memory(); uint32_t sector_len = 0x10000; PXA2xxState *mpu; DriveInfo *dinfo; int be; void *z2_lcd; I2CBus *bus; DeviceState *wm; if (!cpu_model) { cpu_model = "pxa270-c5"; } /* Setup CPU & memory */ mpu = pxa270_init(address_space_mem, z2_binfo.ram_size, cpu_model); #ifdef TARGET_WORDS_BIGENDIAN be = 1; #else be = 0; #endif dinfo = drive_get(IF_PFLASH, 0, 0); if (!dinfo && !qtest_enabled()) { fprintf(stderr, "Flash image must be given with the " "'pflash' parameter\n"); exit(1); } if (!pflash_cfi01_register(Z2_FLASH_BASE, NULL, "z2.flash0", Z2_FLASH_SIZE, dinfo ? dinfo->bdrv : NULL, sector_len, Z2_FLASH_SIZE / sector_len, 4, 0, 0, 0, 0, be)) { fprintf(stderr, "qemu: Error registering flash memory.\n"); exit(1); } /* setup keypad */ pxa27x_register_keypad(mpu->kp, map, 0x100); /* MMC/SD host */ pxa2xx_mmci_handlers(mpu->mmc, NULL, qdev_get_gpio_in(mpu->gpio, Z2_GPIO_SD_DETECT)); type_register_static(&zipit_lcd_info); type_register_static(&aer915_info); z2_lcd = ssi_create_slave(mpu->ssp[1], "zipit-lcd"); bus = pxa2xx_i2c_bus(mpu->i2c[0]); i2c_create_slave(bus, TYPE_AER915, 0x55); wm = i2c_create_slave(bus, "wm8750", 0x1b); mpu->i2s->opaque = wm; mpu->i2s->codec_out = wm8750_dac_dat; mpu->i2s->codec_in = wm8750_adc_dat; wm8750_data_req_set(wm, mpu->i2s->data_req, mpu->i2s); qdev_connect_gpio_out(mpu->gpio, Z2_GPIO_LCD_CS, qemu_allocate_irqs(z2_lcd_cs, z2_lcd, 1)[0]); z2_binfo.kernel_filename = kernel_filename; z2_binfo.kernel_cmdline = kernel_cmdline; z2_binfo.initrd_filename = initrd_filename; z2_binfo.board_id = 0x6dd; arm_load_kernel(mpu->cpu, &z2_binfo); } static QEMUMachine z2_machine = { .name = "z2", .desc = "Zipit Z2 (PXA27x)", .init = z2_init, }; static void z2_machine_init(void) { qemu_register_machine(&z2_machine); } machine_init(z2_machine_init);