--- /dev/null
+/*
+ * 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.
+ *
+ * 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/block-backend.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(MachineState *machine)
+{
+ const char *cpu_model = machine->cpu_model;
+ const char *kernel_filename = machine->kernel_filename;
+ const char *kernel_cmdline = machine->kernel_cmdline;
+ const char *initrd_filename = machine->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 ? blk_by_legacy_dinfo(dinfo) : 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_irq(z2_lcd_cs, z2_lcd, 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);
Code Review / kvmfornfv.git / blobdiff