| /* |
| * PXA270-based Zipit Z2 device |
| * |
| * Copyright (c) 2011 by Vasily Khoruzhick <anarsoul@gmail.com> |
| * |
| * Code is based on mainstone platform. |
| * |
| * This code is licensed under the GNU GPL v2. |
| */ |
| |
| #include "hw.h" |
| #include "pxa.h" |
| #include "arm-misc.h" |
| #include "devices.h" |
| #include "i2c.h" |
| #include "ssi.h" |
| #include "boards.h" |
| #include "sysemu.h" |
| #include "flash.h" |
| #include "blockdev.h" |
| #include "console.h" |
| #include "audio/audio.h" |
| |
| #ifdef DEBUG_Z2 |
| #define DPRINTF(fmt, ...) \ |
| printf(fmt, ## __VA_ARGS__) |
| #else |
| #define DPRINTF(fmt, ...) |
| #endif |
| |
| static 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 = 1, |
| .minimum_version_id = 1, |
| .minimum_version_id_old = 1, |
| .fields = (VMStateField[]) { |
| 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 SSISlaveInfo zipit_lcd_info = { |
| .qdev.name = "zipit-lcd", |
| .qdev.size = sizeof(ZipitLCD), |
| .qdev.vmsd = &vmstate_zipit_lcd_state, |
| .init = zipit_lcd_init, |
| .transfer = zipit_lcd_transfer |
| }; |
| |
| typedef struct { |
| i2c_slave i2c; |
| int len; |
| uint8_t buf[3]; |
| } AER915State; |
| |
| static int aer915_send(i2c_slave *i2c, uint8_t data) |
| { |
| AER915State *s = FROM_I2C_SLAVE(AER915State, 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(i2c_slave *i2c, enum i2c_event event) |
| { |
| AER915State *s = FROM_I2C_SLAVE(AER915State, 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(i2c_slave *slave) |
| { |
| int retval = 0x00; |
| AER915State *s = FROM_I2C_SLAVE(AER915State, slave); |
| |
| 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(i2c_slave *i2c) |
| { |
| /* Nothing to do. */ |
| return 0; |
| } |
| |
| static VMStateDescription vmstate_aer915_state = { |
| .name = "aer915", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .minimum_version_id_old = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_INT32(len, AER915State), |
| VMSTATE_BUFFER(buf, AER915State), |
| VMSTATE_END_OF_LIST(), |
| } |
| }; |
| |
| static I2CSlaveInfo aer915_info = { |
| .qdev.name = "aer915", |
| .qdev.size = sizeof(AER915State), |
| .qdev.vmsd = &vmstate_aer915_state, |
| .init = aer915_init, |
| .event = aer915_event, |
| .recv = aer915_recv, |
| .send = aer915_send |
| }; |
| |
| static void z2_init(ram_addr_t ram_size, |
| const char *boot_device, |
| const char *kernel_filename, const char *kernel_cmdline, |
| const char *initrd_filename, const char *cpu_model) |
| { |
| uint32_t sector_len = 0x10000; |
| PXA2xxState *cpu; |
| DriveInfo *dinfo; |
| int be; |
| void *z2_lcd; |
| i2c_bus *bus; |
| DeviceState *wm; |
| |
| if (!cpu_model) { |
| cpu_model = "pxa270-c5"; |
| } |
| |
| /* Setup CPU & memory */ |
| cpu = pxa270_init(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) { |
| fprintf(stderr, "Flash image must be given with the " |
| "'pflash' parameter\n"); |
| exit(1); |
| } |
| |
| if (!pflash_cfi01_register(Z2_FLASH_BASE, |
| qemu_ram_alloc(NULL, "z2.flash0", Z2_FLASH_SIZE), |
| dinfo->bdrv, 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(cpu->kp, map, 0x100); |
| |
| /* MMC/SD host */ |
| pxa2xx_mmci_handlers(cpu->mmc, |
| NULL, |
| qdev_get_gpio_in(cpu->gpio, Z2_GPIO_SD_DETECT)); |
| |
| ssi_register_slave(&zipit_lcd_info); |
| i2c_register_slave(&aer915_info); |
| z2_lcd = ssi_create_slave(cpu->ssp[1], "zipit-lcd"); |
| bus = pxa2xx_i2c_bus(cpu->i2c[0]); |
| i2c_create_slave(bus, "aer915", 0x55); |
| wm = i2c_create_slave(bus, "wm8750", 0x1b); |
| cpu->i2s->opaque = wm; |
| cpu->i2s->codec_out = wm8750_dac_dat; |
| cpu->i2s->codec_in = wm8750_adc_dat; |
| wm8750_data_req_set(wm, cpu->i2s->data_req, cpu->i2s); |
| |
| qdev_connect_gpio_out(cpu->gpio, Z2_GPIO_LCD_CS, |
| qemu_allocate_irqs(z2_lcd_cs, z2_lcd, 1)[0]); |
| |
| if (kernel_filename) { |
| 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(cpu->env, &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); |