diff options
author | Vasily Khoruzhick <anarsoul@gmail.com> | 2011-07-06 16:52:49 +0300 |
---|---|---|
committer | Andrzej Zaborowski <andrew.zaborowski@intel.com> | 2011-07-30 07:08:30 +0200 |
commit | 3bf11207c0676cfd29a3c76c6709fdf9a983c0c8 (patch) | |
tree | 7a835ed0c1c873c2f74c18fe2a7414df7d81f3b9 /hw/z2.c | |
parent | 63efb1d9c4140108ab57e706fa7a90a21e07cfcc (diff) | |
download | qemu-3bf11207c0676cfd29a3c76c6709fdf9a983c0c8.zip qemu-3bf11207c0676cfd29a3c76c6709fdf9a983c0c8.tar.gz qemu-3bf11207c0676cfd29a3c76c6709fdf9a983c0c8.tar.bz2 |
Add support for Zipit Z2 machine
Zipit Z2 is small PXA270 based handheld.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Diffstat (limited to 'hw/z2.c')
-rw-r--r-- | hw/z2.c | 358 |
1 files changed, 358 insertions, 0 deletions
@@ -0,0 +1,358 @@ +/* + * 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); |