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qemu/hw/z2.c
Avik Sil e4ada29e90 Make default boot order machine specific 
This patch makes default boot order machine specific instead of
set globally. The default boot order can be set per machine in
QEMUMachine boot_order. This also allows a machine to receive a
NULL boot order when -boot isn't used and take an appropriate action
accordingly. This helps machine boots from the devices as set in
guest's non-volatile memory location in case no boot order is
provided by the user.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avik Sil <aviksil@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 18:26:18 -06:00

385 lines
9.7 KiB
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/*
* 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.h"
#include "pxa.h"
#include "arm-misc.h"
#include "devices.h"
#include "i2c.h"
#include "ssi.h"
#include "boards.h"
#include "sysemu/sysemu.h"
#include "flash.h"
#include "sysemu/blockdev.h"
#include "ui/console.h"
#include "audio/audio.h"
#include "exec/address-spaces.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 = 2,
.minimum_version_id = 2,
.minimum_version_id_old = 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,
};
typedef struct {
I2CSlave i2c;
int len;
uint8_t buf[3];
} AER915State;
static int aer915_send(I2CSlave *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(I2CSlave *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(I2CSlave *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(I2CSlave *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 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 = "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;
i2c_bus *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) {
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->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(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, "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]);
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(mpu->cpu, &z2_binfo);
}
}
static QEMUMachine z2_machine = {
.name = "z2",
.desc = "Zipit Z2 (PXA27x)",
.init = z2_init,
DEFAULT_MACHINE_OPTIONS,
};
static void z2_machine_init(void)
{
qemu_register_machine(&z2_machine);
}
machine_init(z2_machine_init);
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