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qemu-e2k/hw/arm/musicpal.c
Stefan Weil b3db996ffc hw/arm: Fix some typos in comments (most found by codespell) 
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230409200526.1156456-1-sw@weilnetz.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-04-20 10:21:13 +01:00

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/*
* Marvell MV88W8618 / Freecom MusicPal emulation.
*
* Copyright (c) 2008 Jan Kiszka
*
* 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 "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "cpu.h"
#include "hw/sysbus.h"
#include "migration/vmstate.h"
#include "hw/arm/boot.h"
#include "net/net.h"
#include "sysemu/sysemu.h"
#include "hw/boards.h"
#include "hw/char/serial.h"
#include "qemu/timer.h"
#include "hw/ptimer.h"
#include "hw/qdev-properties.h"
#include "hw/block/flash.h"
#include "ui/console.h"
#include "hw/i2c/i2c.h"
#include "hw/i2c/bitbang_i2c.h"
#include "hw/irq.h"
#include "hw/or-irq.h"
#include "hw/audio/wm8750.h"
#include "sysemu/block-backend.h"
#include "sysemu/runstate.h"
#include "sysemu/dma.h"
#include "ui/pixel_ops.h"
#include "qemu/cutils.h"
#include "qom/object.h"
#include "hw/net/mv88w8618_eth.h"
#include "qemu/error-report.h"
#define MP_MISC_BASE 0x80002000
#define MP_MISC_SIZE 0x00001000
#define MP_ETH_BASE 0x80008000
#define MP_WLAN_BASE 0x8000C000
#define MP_WLAN_SIZE 0x00000800
#define MP_UART1_BASE 0x8000C840
#define MP_UART2_BASE 0x8000C940
#define MP_GPIO_BASE 0x8000D000
#define MP_GPIO_SIZE 0x00001000
#define MP_FLASHCFG_BASE 0x90006000
#define MP_FLASHCFG_SIZE 0x00001000
#define MP_AUDIO_BASE 0x90007000
#define MP_PIC_BASE 0x90008000
#define MP_PIC_SIZE 0x00001000
#define MP_PIT_BASE 0x90009000
#define MP_PIT_SIZE 0x00001000
#define MP_LCD_BASE 0x9000c000
#define MP_LCD_SIZE 0x00001000
#define MP_SRAM_BASE 0xC0000000
#define MP_SRAM_SIZE 0x00020000
#define MP_RAM_DEFAULT_SIZE 32*1024*1024
#define MP_FLASH_SIZE_MAX 32*1024*1024
#define MP_TIMER1_IRQ 4
#define MP_TIMER2_IRQ 5
#define MP_TIMER3_IRQ 6
#define MP_TIMER4_IRQ 7
#define MP_EHCI_IRQ 8
#define MP_ETH_IRQ 9
#define MP_UART_SHARED_IRQ 11
#define MP_GPIO_IRQ 12
#define MP_RTC_IRQ 28
#define MP_AUDIO_IRQ 30
/* Wolfson 8750 I2C address */
#define MP_WM_ADDR 0x1A
/* LCD register offsets */
#define MP_LCD_IRQCTRL 0x180
#define MP_LCD_IRQSTAT 0x184
#define MP_LCD_SPICTRL 0x1ac
#define MP_LCD_INST 0x1bc
#define MP_LCD_DATA 0x1c0
/* Mode magics */
#define MP_LCD_SPI_DATA 0x00100011
#define MP_LCD_SPI_CMD 0x00104011
#define MP_LCD_SPI_INVALID 0x00000000
/* Commands */
#define MP_LCD_INST_SETPAGE0 0xB0
/* ... */
#define MP_LCD_INST_SETPAGE7 0xB7
#define MP_LCD_TEXTCOLOR 0xe0e0ff /* RRGGBB */
#define TYPE_MUSICPAL_LCD "musicpal_lcd"
OBJECT_DECLARE_SIMPLE_TYPE(musicpal_lcd_state, MUSICPAL_LCD)
struct musicpal_lcd_state {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
uint32_t brightness;
uint32_t mode;
uint32_t irqctrl;
uint32_t page;
uint32_t page_off;
QemuConsole *con;
uint8_t video_ram[128*64/8];
};
static uint8_t scale_lcd_color(musicpal_lcd_state *s, uint8_t col)
{
switch (s->brightness) {
case 7:
return col;
case 0:
return 0;
default:
return (col * s->brightness) / 7;
}
}
static inline void set_lcd_pixel32(musicpal_lcd_state *s,
int x, int y, uint32_t col)
{
int dx, dy;
DisplaySurface *surface = qemu_console_surface(s->con);
uint32_t *pixel =
&((uint32_t *) surface_data(surface))[(y * 128 * 3 + x) * 3];
for (dy = 0; dy < 3; dy++, pixel += 127 * 3) {
for (dx = 0; dx < 3; dx++, pixel++) {
*pixel = col;
}
}
}
static void lcd_refresh(void *opaque)
{
musicpal_lcd_state *s = opaque;
int x, y, col;
col = rgb_to_pixel32(scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 16) & 0xff),
scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 8) & 0xff),
scale_lcd_color(s, MP_LCD_TEXTCOLOR & 0xff));
for (x = 0; x < 128; x++) {
for (y = 0; y < 64; y++) {
if (s->video_ram[x + (y / 8) * 128] & (1 << (y % 8))) {
set_lcd_pixel32(s, x, y, col);
} else {
set_lcd_pixel32(s, x, y, 0);
}
}
}
dpy_gfx_update(s->con, 0, 0, 128*3, 64*3);
}
static void lcd_invalidate(void *opaque)
{
}
static void musicpal_lcd_gpio_brightness_in(void *opaque, int irq, int level)
{
musicpal_lcd_state *s = opaque;
s->brightness &= ~(1 << irq);
s->brightness |= level << irq;
}
static uint64_t musicpal_lcd_read(void *opaque, hwaddr offset,
unsigned size)
{
musicpal_lcd_state *s = opaque;
switch (offset) {
case MP_LCD_IRQCTRL:
return s->irqctrl;
default:
return 0;
}
}
static void musicpal_lcd_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
musicpal_lcd_state *s = opaque;
switch (offset) {
case MP_LCD_IRQCTRL:
s->irqctrl = value;
break;
case MP_LCD_SPICTRL:
if (value == MP_LCD_SPI_DATA || value == MP_LCD_SPI_CMD) {
s->mode = value;
} else {
s->mode = MP_LCD_SPI_INVALID;
}
break;
case MP_LCD_INST:
if (value >= MP_LCD_INST_SETPAGE0 && value <= MP_LCD_INST_SETPAGE7) {
s->page = value - MP_LCD_INST_SETPAGE0;
s->page_off = 0;
}
break;
case MP_LCD_DATA:
if (s->mode == MP_LCD_SPI_CMD) {
if (value >= MP_LCD_INST_SETPAGE0 &&
value <= MP_LCD_INST_SETPAGE7) {
s->page = value - MP_LCD_INST_SETPAGE0;
s->page_off = 0;
}
} else if (s->mode == MP_LCD_SPI_DATA) {
s->video_ram[s->page*128 + s->page_off] = value;
s->page_off = (s->page_off + 1) & 127;
}
break;
}
}
static const MemoryRegionOps musicpal_lcd_ops = {
.read = musicpal_lcd_read,
.write = musicpal_lcd_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static const GraphicHwOps musicpal_gfx_ops = {
.invalidate = lcd_invalidate,
.gfx_update = lcd_refresh,
};
static void musicpal_lcd_realize(DeviceState *dev, Error **errp)
{
musicpal_lcd_state *s = MUSICPAL_LCD(dev);
s->con = graphic_console_init(dev, 0, &musicpal_gfx_ops, s);
qemu_console_resize(s->con, 128 * 3, 64 * 3);
}
static void musicpal_lcd_init(Object *obj)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
DeviceState *dev = DEVICE(sbd);
musicpal_lcd_state *s = MUSICPAL_LCD(dev);
s->brightness = 7;
memory_region_init_io(&s->iomem, obj, &musicpal_lcd_ops, s,
"musicpal-lcd", MP_LCD_SIZE);
sysbus_init_mmio(sbd, &s->iomem);
qdev_init_gpio_in(dev, musicpal_lcd_gpio_brightness_in, 3);
}
static const VMStateDescription musicpal_lcd_vmsd = {
.name = "musicpal_lcd",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(brightness, musicpal_lcd_state),
VMSTATE_UINT32(mode, musicpal_lcd_state),
VMSTATE_UINT32(irqctrl, musicpal_lcd_state),
VMSTATE_UINT32(page, musicpal_lcd_state),
VMSTATE_UINT32(page_off, musicpal_lcd_state),
VMSTATE_BUFFER(video_ram, musicpal_lcd_state),
VMSTATE_END_OF_LIST()
}
};
static void musicpal_lcd_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->vmsd = &musicpal_lcd_vmsd;
dc->realize = musicpal_lcd_realize;
}
static const TypeInfo musicpal_lcd_info = {
.name = TYPE_MUSICPAL_LCD,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(musicpal_lcd_state),
.instance_init = musicpal_lcd_init,
.class_init = musicpal_lcd_class_init,
};
/* PIC register offsets */
#define MP_PIC_STATUS 0x00
#define MP_PIC_ENABLE_SET 0x08
#define MP_PIC_ENABLE_CLR 0x0C
#define TYPE_MV88W8618_PIC "mv88w8618_pic"
OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_pic_state, MV88W8618_PIC)
struct mv88w8618_pic_state {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
uint32_t level;
uint32_t enabled;
qemu_irq parent_irq;
};
static void mv88w8618_pic_update(mv88w8618_pic_state *s)
{
qemu_set_irq(s->parent_irq, (s->level & s->enabled));
}
static void mv88w8618_pic_set_irq(void *opaque, int irq, int level)
{
mv88w8618_pic_state *s = opaque;
if (level) {
s->level |= 1 << irq;
} else {
s->level &= ~(1 << irq);
}
mv88w8618_pic_update(s);
}
static uint64_t mv88w8618_pic_read(void *opaque, hwaddr offset,
unsigned size)
{
mv88w8618_pic_state *s = opaque;
switch (offset) {
case MP_PIC_STATUS:
return s->level & s->enabled;
default:
return 0;
}
}
static void mv88w8618_pic_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
mv88w8618_pic_state *s = opaque;
switch (offset) {
case MP_PIC_ENABLE_SET:
s->enabled |= value;
break;
case MP_PIC_ENABLE_CLR:
s->enabled &= ~value;
s->level &= ~value;
break;
}
mv88w8618_pic_update(s);
}
static void mv88w8618_pic_reset(DeviceState *d)
{
mv88w8618_pic_state *s = MV88W8618_PIC(d);
s->level = 0;
s->enabled = 0;
}
static const MemoryRegionOps mv88w8618_pic_ops = {
.read = mv88w8618_pic_read,
.write = mv88w8618_pic_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void mv88w8618_pic_init(Object *obj)
{
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
mv88w8618_pic_state *s = MV88W8618_PIC(dev);
qdev_init_gpio_in(DEVICE(dev), mv88w8618_pic_set_irq, 32);
sysbus_init_irq(dev, &s->parent_irq);
memory_region_init_io(&s->iomem, obj, &mv88w8618_pic_ops, s,
"musicpal-pic", MP_PIC_SIZE);
sysbus_init_mmio(dev, &s->iomem);
}
static const VMStateDescription mv88w8618_pic_vmsd = {
.name = "mv88w8618_pic",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(level, mv88w8618_pic_state),
VMSTATE_UINT32(enabled, mv88w8618_pic_state),
VMSTATE_END_OF_LIST()
}
};
static void mv88w8618_pic_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->reset = mv88w8618_pic_reset;
dc->vmsd = &mv88w8618_pic_vmsd;
}
static const TypeInfo mv88w8618_pic_info = {
.name = TYPE_MV88W8618_PIC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mv88w8618_pic_state),
.instance_init = mv88w8618_pic_init,
.class_init = mv88w8618_pic_class_init,
};
/* PIT register offsets */
#define MP_PIT_TIMER1_LENGTH 0x00
/* ... */
#define MP_PIT_TIMER4_LENGTH 0x0C
#define MP_PIT_CONTROL 0x10
#define MP_PIT_TIMER1_VALUE 0x14
/* ... */
#define MP_PIT_TIMER4_VALUE 0x20
#define MP_BOARD_RESET 0x34
/* Magic board reset value (probably some watchdog behind it) */
#define MP_BOARD_RESET_MAGIC 0x10000
typedef struct mv88w8618_timer_state {
ptimer_state *ptimer;
uint32_t limit;
int freq;
qemu_irq irq;
} mv88w8618_timer_state;
#define TYPE_MV88W8618_PIT "mv88w8618_pit"
OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_pit_state, MV88W8618_PIT)
struct mv88w8618_pit_state {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
mv88w8618_timer_state timer[4];
};
static void mv88w8618_timer_tick(void *opaque)
{
mv88w8618_timer_state *s = opaque;
qemu_irq_raise(s->irq);
}
static void mv88w8618_timer_init(SysBusDevice *dev, mv88w8618_timer_state *s,
uint32_t freq)
{
sysbus_init_irq(dev, &s->irq);
s->freq = freq;
s->ptimer = ptimer_init(mv88w8618_timer_tick, s, PTIMER_POLICY_LEGACY);
}
static uint64_t mv88w8618_pit_read(void *opaque, hwaddr offset,
unsigned size)
{
mv88w8618_pit_state *s = opaque;
mv88w8618_timer_state *t;
switch (offset) {
case MP_PIT_TIMER1_VALUE ... MP_PIT_TIMER4_VALUE:
t = &s->timer[(offset-MP_PIT_TIMER1_VALUE) >> 2];
return ptimer_get_count(t->ptimer);
default:
return 0;
}
}
static void mv88w8618_pit_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
mv88w8618_pit_state *s = opaque;
mv88w8618_timer_state *t;
int i;
switch (offset) {
case MP_PIT_TIMER1_LENGTH ... MP_PIT_TIMER4_LENGTH:
t = &s->timer[offset >> 2];
t->limit = value;
ptimer_transaction_begin(t->ptimer);
if (t->limit > 0) {
ptimer_set_limit(t->ptimer, t->limit, 1);
} else {
ptimer_stop(t->ptimer);
}
ptimer_transaction_commit(t->ptimer);
break;
case MP_PIT_CONTROL:
for (i = 0; i < 4; i++) {
t = &s->timer[i];
ptimer_transaction_begin(t->ptimer);
if (value & 0xf && t->limit > 0) {
ptimer_set_limit(t->ptimer, t->limit, 0);
ptimer_set_freq(t->ptimer, t->freq);
ptimer_run(t->ptimer, 0);
} else {
ptimer_stop(t->ptimer);
}
ptimer_transaction_commit(t->ptimer);
value >>= 4;
}
break;
case MP_BOARD_RESET:
if (value == MP_BOARD_RESET_MAGIC) {
qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
}
break;
}
}
static void mv88w8618_pit_reset(DeviceState *d)
{
mv88w8618_pit_state *s = MV88W8618_PIT(d);
int i;
for (i = 0; i < 4; i++) {
mv88w8618_timer_state *t = &s->timer[i];
ptimer_transaction_begin(t->ptimer);
ptimer_stop(t->ptimer);
ptimer_transaction_commit(t->ptimer);
t->limit = 0;
}
}
static const MemoryRegionOps mv88w8618_pit_ops = {
.read = mv88w8618_pit_read,
.write = mv88w8618_pit_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void mv88w8618_pit_init(Object *obj)
{
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
mv88w8618_pit_state *s = MV88W8618_PIT(dev);
int i;
/* Letting them all run at 1 MHz is likely just a pragmatic
* simplification. */
for (i = 0; i < 4; i++) {
mv88w8618_timer_init(dev, &s->timer[i], 1000000);
}
memory_region_init_io(&s->iomem, obj, &mv88w8618_pit_ops, s,
"musicpal-pit", MP_PIT_SIZE);
sysbus_init_mmio(dev, &s->iomem);
}
static void mv88w8618_pit_finalize(Object *obj)
{
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
mv88w8618_pit_state *s = MV88W8618_PIT(dev);
int i;
for (i = 0; i < 4; i++) {
ptimer_free(s->timer[i].ptimer);
}
}
static const VMStateDescription mv88w8618_timer_vmsd = {
.name = "timer",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_PTIMER(ptimer, mv88w8618_timer_state),
VMSTATE_UINT32(limit, mv88w8618_timer_state),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription mv88w8618_pit_vmsd = {
.name = "mv88w8618_pit",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_STRUCT_ARRAY(timer, mv88w8618_pit_state, 4, 1,
mv88w8618_timer_vmsd, mv88w8618_timer_state),
VMSTATE_END_OF_LIST()
}
};
static void mv88w8618_pit_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->reset = mv88w8618_pit_reset;
dc->vmsd = &mv88w8618_pit_vmsd;
}
static const TypeInfo mv88w8618_pit_info = {
.name = TYPE_MV88W8618_PIT,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mv88w8618_pit_state),
.instance_init = mv88w8618_pit_init,
.instance_finalize = mv88w8618_pit_finalize,
.class_init = mv88w8618_pit_class_init,
};
/* Flash config register offsets */
#define MP_FLASHCFG_CFGR0 0x04
#define TYPE_MV88W8618_FLASHCFG "mv88w8618_flashcfg"
OBJECT_DECLARE_SIMPLE_TYPE(mv88w8618_flashcfg_state, MV88W8618_FLASHCFG)
struct mv88w8618_flashcfg_state {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
uint32_t cfgr0;
};
static uint64_t mv88w8618_flashcfg_read(void *opaque,
hwaddr offset,
unsigned size)
{
mv88w8618_flashcfg_state *s = opaque;
switch (offset) {
case MP_FLASHCFG_CFGR0:
return s->cfgr0;
default:
return 0;
}
}
static void mv88w8618_flashcfg_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
mv88w8618_flashcfg_state *s = opaque;
switch (offset) {
case MP_FLASHCFG_CFGR0:
s->cfgr0 = value;
break;
}
}
static const MemoryRegionOps mv88w8618_flashcfg_ops = {
.read = mv88w8618_flashcfg_read,
.write = mv88w8618_flashcfg_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void mv88w8618_flashcfg_init(Object *obj)
{
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
mv88w8618_flashcfg_state *s = MV88W8618_FLASHCFG(dev);
s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
memory_region_init_io(&s->iomem, obj, &mv88w8618_flashcfg_ops, s,
"musicpal-flashcfg", MP_FLASHCFG_SIZE);
sysbus_init_mmio(dev, &s->iomem);
}
static const VMStateDescription mv88w8618_flashcfg_vmsd = {
.name = "mv88w8618_flashcfg",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(cfgr0, mv88w8618_flashcfg_state),
VMSTATE_END_OF_LIST()
}
};
static void mv88w8618_flashcfg_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->vmsd = &mv88w8618_flashcfg_vmsd;
}
static const TypeInfo mv88w8618_flashcfg_info = {
.name = TYPE_MV88W8618_FLASHCFG,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mv88w8618_flashcfg_state),
.instance_init = mv88w8618_flashcfg_init,
.class_init = mv88w8618_flashcfg_class_init,
};
/* Misc register offsets */
#define MP_MISC_BOARD_REVISION 0x18
#define MP_BOARD_REVISION 0x31
struct MusicPalMiscState {
SysBusDevice parent_obj;
MemoryRegion iomem;
};
#define TYPE_MUSICPAL_MISC "musicpal-misc"
OBJECT_DECLARE_SIMPLE_TYPE(MusicPalMiscState, MUSICPAL_MISC)
static uint64_t musicpal_misc_read(void *opaque, hwaddr offset,
unsigned size)
{
switch (offset) {
case MP_MISC_BOARD_REVISION:
return MP_BOARD_REVISION;
default:
return 0;
}
}
static void musicpal_misc_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
}
static const MemoryRegionOps musicpal_misc_ops = {
.read = musicpal_misc_read,
.write = musicpal_misc_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void musicpal_misc_init(Object *obj)
{
SysBusDevice *sd = SYS_BUS_DEVICE(obj);
MusicPalMiscState *s = MUSICPAL_MISC(obj);
memory_region_init_io(&s->iomem, OBJECT(s), &musicpal_misc_ops, NULL,
"musicpal-misc", MP_MISC_SIZE);
sysbus_init_mmio(sd, &s->iomem);
}
static const TypeInfo musicpal_misc_info = {
.name = TYPE_MUSICPAL_MISC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_init = musicpal_misc_init,
.instance_size = sizeof(MusicPalMiscState),
};
/* WLAN register offsets */
#define MP_WLAN_MAGIC1 0x11c
#define MP_WLAN_MAGIC2 0x124
static uint64_t mv88w8618_wlan_read(void *opaque, hwaddr offset,
unsigned size)
{
switch (offset) {
/* Workaround to allow loading the binary-only wlandrv.ko crap
* from the original Freecom firmware. */
case MP_WLAN_MAGIC1:
return ~3;
case MP_WLAN_MAGIC2:
return -1;
default:
return 0;
}
}
static void mv88w8618_wlan_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
}
static const MemoryRegionOps mv88w8618_wlan_ops = {
.read = mv88w8618_wlan_read,
.write =mv88w8618_wlan_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void mv88w8618_wlan_realize(DeviceState *dev, Error **errp)
{
MemoryRegion *iomem = g_new(MemoryRegion, 1);
memory_region_init_io(iomem, OBJECT(dev), &mv88w8618_wlan_ops, NULL,
"musicpal-wlan", MP_WLAN_SIZE);
sysbus_init_mmio(SYS_BUS_DEVICE(dev), iomem);
}
/* GPIO register offsets */
#define MP_GPIO_OE_LO 0x008
#define MP_GPIO_OUT_LO 0x00c
#define MP_GPIO_IN_LO 0x010
#define MP_GPIO_IER_LO 0x014
#define MP_GPIO_IMR_LO 0x018
#define MP_GPIO_ISR_LO 0x020
#define MP_GPIO_OE_HI 0x508
#define MP_GPIO_OUT_HI 0x50c
#define MP_GPIO_IN_HI 0x510
#define MP_GPIO_IER_HI 0x514
#define MP_GPIO_IMR_HI 0x518
#define MP_GPIO_ISR_HI 0x520
/* GPIO bits & masks */
#define MP_GPIO_LCD_BRIGHTNESS 0x00070000
#define MP_GPIO_I2C_DATA_BIT 29
#define MP_GPIO_I2C_CLOCK_BIT 30
/* LCD brightness bits in GPIO_OE_HI */
#define MP_OE_LCD_BRIGHTNESS 0x0007
#define TYPE_MUSICPAL_GPIO "musicpal_gpio"
OBJECT_DECLARE_SIMPLE_TYPE(musicpal_gpio_state, MUSICPAL_GPIO)
struct musicpal_gpio_state {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
uint32_t lcd_brightness;
uint32_t out_state;
uint32_t in_state;
uint32_t ier;
uint32_t imr;
uint32_t isr;
qemu_irq irq;
qemu_irq out[5]; /* 3 brightness out + 2 lcd (data and clock ) */
};
static void musicpal_gpio_brightness_update(musicpal_gpio_state *s) {
int i;
uint32_t brightness;
/* compute brightness ratio */
switch (s->lcd_brightness) {
case 0x00000007:
brightness = 0;
break;
case 0x00020000:
brightness = 1;
break;
case 0x00020001:
brightness = 2;
break;
case 0x00040000:
brightness = 3;
break;
case 0x00010006:
brightness = 4;
break;
case 0x00020005:
brightness = 5;
break;
case 0x00040003:
brightness = 6;
break;
case 0x00030004:
default:
brightness = 7;
}
/* set lcd brightness GPIOs */
for (i = 0; i <= 2; i++) {
qemu_set_irq(s->out[i], (brightness >> i) & 1);
}
}
static void musicpal_gpio_pin_event(void *opaque, int pin, int level)
{
musicpal_gpio_state *s = opaque;
uint32_t mask = 1 << pin;
uint32_t delta = level << pin;
uint32_t old = s->in_state & mask;
s->in_state &= ~mask;
s->in_state |= delta;
if ((old ^ delta) &&
((level && (s->imr & mask)) || (!level && (s->ier & mask)))) {
s->isr = mask;
qemu_irq_raise(s->irq);
}
}
static uint64_t musicpal_gpio_read(void *opaque, hwaddr offset,
unsigned size)
{
musicpal_gpio_state *s = opaque;
switch (offset) {
case MP_GPIO_OE_HI: /* used for LCD brightness control */
return s->lcd_brightness & MP_OE_LCD_BRIGHTNESS;
case MP_GPIO_OUT_LO:
return s->out_state & 0xFFFF;
case MP_GPIO_OUT_HI:
return s->out_state >> 16;
case MP_GPIO_IN_LO:
return s->in_state & 0xFFFF;
case MP_GPIO_IN_HI:
return s->in_state >> 16;
case MP_GPIO_IER_LO:
return s->ier & 0xFFFF;
case MP_GPIO_IER_HI:
return s->ier >> 16;
case MP_GPIO_IMR_LO:
return s->imr & 0xFFFF;
case MP_GPIO_IMR_HI:
return s->imr >> 16;
case MP_GPIO_ISR_LO:
return s->isr & 0xFFFF;
case MP_GPIO_ISR_HI:
return s->isr >> 16;
default:
return 0;
}
}
static void musicpal_gpio_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
musicpal_gpio_state *s = opaque;
switch (offset) {
case MP_GPIO_OE_HI: /* used for LCD brightness control */
s->lcd_brightness = (s->lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
(value & MP_OE_LCD_BRIGHTNESS);
musicpal_gpio_brightness_update(s);
break;
case MP_GPIO_OUT_LO:
s->out_state = (s->out_state & 0xFFFF0000) | (value & 0xFFFF);
break;
case MP_GPIO_OUT_HI:
s->out_state = (s->out_state & 0xFFFF) | (value << 16);
s->lcd_brightness = (s->lcd_brightness & 0xFFFF) |
(s->out_state & MP_GPIO_LCD_BRIGHTNESS);
musicpal_gpio_brightness_update(s);
qemu_set_irq(s->out[3], (s->out_state >> MP_GPIO_I2C_DATA_BIT) & 1);
qemu_set_irq(s->out[4], (s->out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
break;
case MP_GPIO_IER_LO:
s->ier = (s->ier & 0xFFFF0000) | (value & 0xFFFF);
break;
case MP_GPIO_IER_HI:
s->ier = (s->ier & 0xFFFF) | (value << 16);
break;
case MP_GPIO_IMR_LO:
s->imr = (s->imr & 0xFFFF0000) | (value & 0xFFFF);
break;
case MP_GPIO_IMR_HI:
s->imr = (s->imr & 0xFFFF) | (value << 16);
break;
}
}
static const MemoryRegionOps musicpal_gpio_ops = {
.read = musicpal_gpio_read,
.write = musicpal_gpio_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void musicpal_gpio_reset(DeviceState *d)
{
musicpal_gpio_state *s = MUSICPAL_GPIO(d);
s->lcd_brightness = 0;
s->out_state = 0;
s->in_state = 0xffffffff;
s->ier = 0;
s->imr = 0;
s->isr = 0;
}
static void musicpal_gpio_init(Object *obj)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
DeviceState *dev = DEVICE(sbd);
musicpal_gpio_state *s = MUSICPAL_GPIO(dev);
sysbus_init_irq(sbd, &s->irq);
memory_region_init_io(&s->iomem, obj, &musicpal_gpio_ops, s,
"musicpal-gpio", MP_GPIO_SIZE);
sysbus_init_mmio(sbd, &s->iomem);
qdev_init_gpio_out(dev, s->out, ARRAY_SIZE(s->out));
qdev_init_gpio_in(dev, musicpal_gpio_pin_event, 32);
}
static const VMStateDescription musicpal_gpio_vmsd = {
.name = "musicpal_gpio",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(lcd_brightness, musicpal_gpio_state),
VMSTATE_UINT32(out_state, musicpal_gpio_state),
VMSTATE_UINT32(in_state, musicpal_gpio_state),
VMSTATE_UINT32(ier, musicpal_gpio_state),
VMSTATE_UINT32(imr, musicpal_gpio_state),
VMSTATE_UINT32(isr, musicpal_gpio_state),
VMSTATE_END_OF_LIST()
}
};
static void musicpal_gpio_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->reset = musicpal_gpio_reset;
dc->vmsd = &musicpal_gpio_vmsd;
}
static const TypeInfo musicpal_gpio_info = {
.name = TYPE_MUSICPAL_GPIO,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(musicpal_gpio_state),
.instance_init = musicpal_gpio_init,
.class_init = musicpal_gpio_class_init,
};
/* Keyboard codes & masks */
#define KEY_RELEASED 0x80
#define KEY_CODE 0x7f
#define KEYCODE_TAB 0x0f
#define KEYCODE_ENTER 0x1c
#define KEYCODE_F 0x21
#define KEYCODE_M 0x32
#define KEYCODE_EXTENDED 0xe0
#define KEYCODE_UP 0x48
#define KEYCODE_DOWN 0x50
#define KEYCODE_LEFT 0x4b
#define KEYCODE_RIGHT 0x4d
#define MP_KEY_WHEEL_VOL (1 << 0)
#define MP_KEY_WHEEL_VOL_INV (1 << 1)
#define MP_KEY_WHEEL_NAV (1 << 2)
#define MP_KEY_WHEEL_NAV_INV (1 << 3)
#define MP_KEY_BTN_FAVORITS (1 << 4)
#define MP_KEY_BTN_MENU (1 << 5)
#define MP_KEY_BTN_VOLUME (1 << 6)
#define MP_KEY_BTN_NAVIGATION (1 << 7)
#define TYPE_MUSICPAL_KEY "musicpal_key"
OBJECT_DECLARE_SIMPLE_TYPE(musicpal_key_state, MUSICPAL_KEY)
struct musicpal_key_state {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
uint32_t kbd_extended;
uint32_t pressed_keys;
qemu_irq out[8];
};
static void musicpal_key_event(void *opaque, int keycode)
{
musicpal_key_state *s = opaque;
uint32_t event = 0;
int i;
if (keycode == KEYCODE_EXTENDED) {
s->kbd_extended = 1;
return;
}
if (s->kbd_extended) {
switch (keycode & KEY_CODE) {
case KEYCODE_UP:
event = MP_KEY_WHEEL_NAV | MP_KEY_WHEEL_NAV_INV;
break;
case KEYCODE_DOWN:
event = MP_KEY_WHEEL_NAV;
break;
case KEYCODE_LEFT:
event = MP_KEY_WHEEL_VOL | MP_KEY_WHEEL_VOL_INV;
break;
case KEYCODE_RIGHT:
event = MP_KEY_WHEEL_VOL;
break;
}
} else {
switch (keycode & KEY_CODE) {
case KEYCODE_F:
event = MP_KEY_BTN_FAVORITS;
break;
case KEYCODE_TAB:
event = MP_KEY_BTN_VOLUME;
break;
case KEYCODE_ENTER:
event = MP_KEY_BTN_NAVIGATION;
break;
case KEYCODE_M:
event = MP_KEY_BTN_MENU;
break;
}
/* Do not repeat already pressed buttons */
if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
event = 0;
}
}
if (event) {
/* Raise GPIO pin first if repeating a key */
if (!(keycode & KEY_RELEASED) && (s->pressed_keys & event)) {
for (i = 0; i <= 7; i++) {
if (event & (1 << i)) {
qemu_set_irq(s->out[i], 1);
}
}
}
for (i = 0; i <= 7; i++) {
if (event & (1 << i)) {
qemu_set_irq(s->out[i], !!(keycode & KEY_RELEASED));
}
}
if (keycode & KEY_RELEASED) {
s->pressed_keys &= ~event;
} else {
s->pressed_keys |= event;
}
}
s->kbd_extended = 0;
}
static void musicpal_key_init(Object *obj)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
DeviceState *dev = DEVICE(sbd);
musicpal_key_state *s = MUSICPAL_KEY(dev);
s->kbd_extended = 0;
s->pressed_keys = 0;
qdev_init_gpio_out(dev, s->out, ARRAY_SIZE(s->out));
qemu_add_kbd_event_handler(musicpal_key_event, s);
}
static const VMStateDescription musicpal_key_vmsd = {
.name = "musicpal_key",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(kbd_extended, musicpal_key_state),
VMSTATE_UINT32(pressed_keys, musicpal_key_state),
VMSTATE_END_OF_LIST()
}
};
static void musicpal_key_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->vmsd = &musicpal_key_vmsd;
}
static const TypeInfo musicpal_key_info = {
.name = TYPE_MUSICPAL_KEY,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(musicpal_key_state),
.instance_init = musicpal_key_init,
.class_init = musicpal_key_class_init,
};
#define FLASH_SECTOR_SIZE (64 * KiB)
static struct arm_boot_info musicpal_binfo = {
.loader_start = 0x0,
.board_id = 0x20e,
};
static void musicpal_init(MachineState *machine)
{
ARMCPU *cpu;
DeviceState *dev;
DeviceState *pic;
DeviceState *uart_orgate;
DeviceState *i2c_dev;
DeviceState *lcd_dev;
DeviceState *key_dev;
I2CSlave *wm8750_dev;
SysBusDevice *s;
I2CBus *i2c;
int i;
unsigned long flash_size;
DriveInfo *dinfo;
MachineClass *mc = MACHINE_GET_CLASS(machine);
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *sram = g_new(MemoryRegion, 1);
/* For now we use a fixed - the original - RAM size */
if (machine->ram_size != mc->default_ram_size) {
char *sz = size_to_str(mc->default_ram_size);
error_report("Invalid RAM size, should be %s", sz);
g_free(sz);
exit(EXIT_FAILURE);
}
cpu = ARM_CPU(cpu_create(machine->cpu_type));
memory_region_add_subregion(address_space_mem, 0, machine->ram);
memory_region_init_ram(sram, NULL, "musicpal.sram", MP_SRAM_SIZE,
&error_fatal);
memory_region_add_subregion(address_space_mem, MP_SRAM_BASE, sram);
pic = sysbus_create_simple(TYPE_MV88W8618_PIC, MP_PIC_BASE,
qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
sysbus_create_varargs(TYPE_MV88W8618_PIT, MP_PIT_BASE,
qdev_get_gpio_in(pic, MP_TIMER1_IRQ),
qdev_get_gpio_in(pic, MP_TIMER2_IRQ),
qdev_get_gpio_in(pic, MP_TIMER3_IRQ),
qdev_get_gpio_in(pic, MP_TIMER4_IRQ), NULL);
/* Logically OR both UART IRQs together */
uart_orgate = DEVICE(object_new(TYPE_OR_IRQ));
object_property_set_int(OBJECT(uart_orgate), "num-lines", 2, &error_fatal);
qdev_realize_and_unref(uart_orgate, NULL, &error_fatal);
qdev_connect_gpio_out(DEVICE(uart_orgate), 0,
qdev_get_gpio_in(pic, MP_UART_SHARED_IRQ));
serial_mm_init(address_space_mem, MP_UART1_BASE, 2,
qdev_get_gpio_in(uart_orgate, 0),
1825000, serial_hd(0), DEVICE_NATIVE_ENDIAN);
serial_mm_init(address_space_mem, MP_UART2_BASE, 2,
qdev_get_gpio_in(uart_orgate, 1),
1825000, serial_hd(1), DEVICE_NATIVE_ENDIAN);
/* Register flash */
dinfo = drive_get(IF_PFLASH, 0, 0);
if (dinfo) {
BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
flash_size = blk_getlength(blk);
if (flash_size != 8 * MiB && flash_size != 16 * MiB &&
flash_size != 32 * MiB) {
error_report("Invalid flash image size");
exit(1);
}
/*
* The original U-Boot accesses the flash at 0xFE000000 instead of
* 0xFF800000 (if there is 8 MB flash). So remap flash access if the
* image is smaller than 32 MB.
*/
pflash_cfi02_register(0x100000000ULL - MP_FLASH_SIZE_MAX,
"musicpal.flash", flash_size,
blk, FLASH_SECTOR_SIZE,
MP_FLASH_SIZE_MAX / flash_size,
2, 0x00BF, 0x236D, 0x0000, 0x0000,
0x5555, 0x2AAA, 0);
}
sysbus_create_simple(TYPE_MV88W8618_FLASHCFG, MP_FLASHCFG_BASE, NULL);
qemu_check_nic_model(&nd_table[0], "mv88w8618");
dev = qdev_new(TYPE_MV88W8618_ETH);
qdev_set_nic_properties(dev, &nd_table[0]);
object_property_set_link(OBJECT(dev), "dma-memory",
OBJECT(get_system_memory()), &error_fatal);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MP_ETH_BASE);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
qdev_get_gpio_in(pic, MP_ETH_IRQ));
sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);
sysbus_create_simple(TYPE_MUSICPAL_MISC, MP_MISC_BASE, NULL);
dev = sysbus_create_simple(TYPE_MUSICPAL_GPIO, MP_GPIO_BASE,
qdev_get_gpio_in(pic, MP_GPIO_IRQ));
i2c_dev = sysbus_create_simple(TYPE_GPIO_I2C, -1, NULL);
i2c = (I2CBus *)qdev_get_child_bus(i2c_dev, "i2c");
lcd_dev = sysbus_create_simple(TYPE_MUSICPAL_LCD, MP_LCD_BASE, NULL);
key_dev = sysbus_create_simple(TYPE_MUSICPAL_KEY, -1, NULL);
/* I2C read data */
qdev_connect_gpio_out(i2c_dev, 0,
qdev_get_gpio_in(dev, MP_GPIO_I2C_DATA_BIT));
/* I2C data */
qdev_connect_gpio_out(dev, 3, qdev_get_gpio_in(i2c_dev, 0));
/* I2C clock */
qdev_connect_gpio_out(dev, 4, qdev_get_gpio_in(i2c_dev, 1));
for (i = 0; i < 3; i++) {
qdev_connect_gpio_out(dev, i, qdev_get_gpio_in(lcd_dev, i));
}
for (i = 0; i < 4; i++) {
qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 8));
}
for (i = 4; i < 8; i++) {
qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 15));
}
wm8750_dev = i2c_slave_create_simple(i2c, TYPE_WM8750, MP_WM_ADDR);
dev = qdev_new(TYPE_MV88W8618_AUDIO);
s = SYS_BUS_DEVICE(dev);
object_property_set_link(OBJECT(dev), "wm8750", OBJECT(wm8750_dev),
NULL);
sysbus_realize_and_unref(s, &error_fatal);
sysbus_mmio_map(s, 0, MP_AUDIO_BASE);
sysbus_connect_irq(s, 0, qdev_get_gpio_in(pic, MP_AUDIO_IRQ));
musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
arm_load_kernel(cpu, machine, &musicpal_binfo);
}
static void musicpal_machine_init(MachineClass *mc)
{
mc->desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)";
mc->init = musicpal_init;
mc->ignore_memory_transaction_failures = true;
mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
mc->default_ram_size = MP_RAM_DEFAULT_SIZE;
mc->default_ram_id = "musicpal.ram";
}
DEFINE_MACHINE("musicpal", musicpal_machine_init)
static void mv88w8618_wlan_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = mv88w8618_wlan_realize;
}
static const TypeInfo mv88w8618_wlan_info = {
.name = "mv88w8618_wlan",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(SysBusDevice),
.class_init = mv88w8618_wlan_class_init,
};
static void musicpal_register_types(void)
{
type_register_static(&mv88w8618_pic_info);
type_register_static(&mv88w8618_pit_info);
type_register_static(&mv88w8618_flashcfg_info);
type_register_static(&mv88w8618_wlan_info);
type_register_static(&musicpal_lcd_info);
type_register_static(&musicpal_gpio_info);
type_register_static(&musicpal_key_info);
type_register_static(&musicpal_misc_info);
}
type_init(musicpal_register_types)
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