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musicpal.c
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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 "hw/sysbus.h"
#include "hw/arm-misc.h"
#include "hw/devices.h"
#include "net/net.h"
#include "sysemu/sysemu.h"
#include "hw/boards.h"
#include "hw/serial.h"
#include "qemu/timer.h"
#include "hw/ptimer.h"
#include "block/block.h"
#include "hw/flash.h"
#include "ui/console.h"
#include "hw/i2c.h"
#include "sysemu/blockdev.h"
#include "exec/address-spaces.h"
#include "ui/pixel_ops.h"
#define MP_MISC_BASE 0x80002000
#define MP_MISC_SIZE 0x00001000
#define MP_ETH_BASE 0x80008000
#define MP_ETH_SIZE 0x00001000
#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_UART1_IRQ 11
#define MP_UART2_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
/* Ethernet register offsets */
#define MP_ETH_SMIR 0x010
#define MP_ETH_PCXR 0x408
#define MP_ETH_SDCMR 0x448
#define MP_ETH_ICR 0x450
#define MP_ETH_IMR 0x458
#define MP_ETH_FRDP0 0x480
#define MP_ETH_FRDP1 0x484
#define MP_ETH_FRDP2 0x488
#define MP_ETH_FRDP3 0x48C
#define MP_ETH_CRDP0 0x4A0
#define MP_ETH_CRDP1 0x4A4
#define MP_ETH_CRDP2 0x4A8
#define MP_ETH_CRDP3 0x4AC
#define MP_ETH_CTDP0 0x4E0
#define MP_ETH_CTDP1 0x4E4
#define MP_ETH_CTDP2 0x4E8
#define MP_ETH_CTDP3 0x4EC
/* MII PHY access */
#define MP_ETH_SMIR_DATA 0x0000FFFF
#define MP_ETH_SMIR_ADDR 0x03FF0000
#define MP_ETH_SMIR_OPCODE (1 << 26) /* Read value */
#define MP_ETH_SMIR_RDVALID (1 << 27)
/* PHY registers */
#define MP_ETH_PHY1_BMSR 0x00210000
#define MP_ETH_PHY1_PHYSID1 0x00410000
#define MP_ETH_PHY1_PHYSID2 0x00610000
#define MP_PHY_BMSR_LINK 0x0004
#define MP_PHY_BMSR_AUTONEG 0x0008
#define MP_PHY_88E3015 0x01410E20
/* TX descriptor status */
#define MP_ETH_TX_OWN (1 << 31)
/* RX descriptor status */
#define MP_ETH_RX_OWN (1 << 31)
/* Interrupt cause/mask bits */
#define MP_ETH_IRQ_RX_BIT 0
#define MP_ETH_IRQ_RX (1 << MP_ETH_IRQ_RX_BIT)
#define MP_ETH_IRQ_TXHI_BIT 2
#define MP_ETH_IRQ_TXLO_BIT 3
/* Port config bits */
#define MP_ETH_PCXR_2BSM_BIT 28 /* 2-byte incoming suffix */
/* SDMA command bits */
#define MP_ETH_CMD_TXHI (1 << 23)
#define MP_ETH_CMD_TXLO (1 << 22)
typedef struct mv88w8618_tx_desc {
uint32_t cmdstat;
uint16_t res;
uint16_t bytes;
uint32_t buffer;
uint32_t next;
} mv88w8618_tx_desc;
typedef struct mv88w8618_rx_desc {
uint32_t cmdstat;
uint16_t bytes;
uint16_t buffer_size;
uint32_t buffer;
uint32_t next;
} mv88w8618_rx_desc;
typedef struct mv88w8618_eth_state {
SysBusDevice busdev;
MemoryRegion iomem;
qemu_irq irq;
uint32_t smir;
uint32_t icr;
uint32_t imr;
int mmio_index;
uint32_t vlan_header;
uint32_t tx_queue[2];
uint32_t rx_queue[4];
uint32_t frx_queue[4];
uint32_t cur_rx[4];
NICState *nic;
NICConf conf;
} mv88w8618_eth_state;
static void eth_rx_desc_put(uint32_t addr, mv88w8618_rx_desc *desc)
{
cpu_to_le32s(&desc->cmdstat);
cpu_to_le16s(&desc->bytes);
cpu_to_le16s(&desc->buffer_size);
cpu_to_le32s(&desc->buffer);
cpu_to_le32s(&desc->next);
cpu_physical_memory_write(addr, (void *)desc, sizeof(*desc));
}
static void eth_rx_desc_get(uint32_t addr, mv88w8618_rx_desc *desc)
{
cpu_physical_memory_read(addr, (void *)desc, sizeof(*desc));
le32_to_cpus(&desc->cmdstat);
le16_to_cpus(&desc->bytes);
le16_to_cpus(&desc->buffer_size);
le32_to_cpus(&desc->buffer);
le32_to_cpus(&desc->next);
}
static int eth_can_receive(NetClientState *nc)
{
return 1;
}
static ssize_t eth_receive(NetClientState *nc, const uint8_t *buf, size_t size)
{
mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
uint32_t desc_addr;
mv88w8618_rx_desc desc;
int i;
for (i = 0; i < 4; i++) {
desc_addr = s->cur_rx[i];
if (!desc_addr) {
continue;
}
do {
eth_rx_desc_get(desc_addr, &desc);
if ((desc.cmdstat & MP_ETH_RX_OWN) && desc.buffer_size >= size) {
cpu_physical_memory_write(desc.buffer + s->vlan_header,
buf, size);
desc.bytes = size + s->vlan_header;
desc.cmdstat &= ~MP_ETH_RX_OWN;
s->cur_rx[i] = desc.next;
s->icr |= MP_ETH_IRQ_RX;
if (s->icr & s->imr) {
qemu_irq_raise(s->irq);
}
eth_rx_desc_put(desc_addr, &desc);
return size;
}
desc_addr = desc.next;
} while (desc_addr != s->rx_queue[i]);
}
return size;
}
static void eth_tx_desc_put(uint32_t addr, mv88w8618_tx_desc *desc)
{
cpu_to_le32s(&desc->cmdstat);
cpu_to_le16s(&desc->res);
cpu_to_le16s(&desc->bytes);
cpu_to_le32s(&desc->buffer);
cpu_to_le32s(&desc->next);
cpu_physical_memory_write(addr, (void *)desc, sizeof(*desc));
}
static void eth_tx_desc_get(uint32_t addr, mv88w8618_tx_desc *desc)
{
cpu_physical_memory_read(addr, (void *)desc, sizeof(*desc));
le32_to_cpus(&desc->cmdstat);
le16_to_cpus(&desc->res);
le16_to_cpus(&desc->bytes);
le32_to_cpus(&desc->buffer);
le32_to_cpus(&desc->next);
}
static void eth_send(mv88w8618_eth_state *s, int queue_index)
{
uint32_t desc_addr = s->tx_queue[queue_index];
mv88w8618_tx_desc desc;
uint32_t next_desc;
uint8_t buf[2048];
int len;
do {
eth_tx_desc_get(desc_addr, &desc);
next_desc = desc.next;
if (desc.cmdstat & MP_ETH_TX_OWN) {
len = desc.bytes;
if (len < 2048) {
cpu_physical_memory_read(desc.buffer, buf, len);
qemu_send_packet(qemu_get_queue(s->nic), buf, len);
}
desc.cmdstat &= ~MP_ETH_TX_OWN;
s->icr |= 1 << (MP_ETH_IRQ_TXLO_BIT - queue_index);
eth_tx_desc_put(desc_addr, &desc);
}
desc_addr = next_desc;
} while (desc_addr != s->tx_queue[queue_index]);
}
static uint64_t mv88w8618_eth_read(void *opaque, hwaddr offset,
unsigned size)
{
mv88w8618_eth_state *s = opaque;
switch (offset) {
case MP_ETH_SMIR:
if (s->smir & MP_ETH_SMIR_OPCODE) {
switch (s->smir & MP_ETH_SMIR_ADDR) {
case MP_ETH_PHY1_BMSR:
return MP_PHY_BMSR_LINK | MP_PHY_BMSR_AUTONEG |
MP_ETH_SMIR_RDVALID;
case MP_ETH_PHY1_PHYSID1:
return (MP_PHY_88E3015 >> 16) | MP_ETH_SMIR_RDVALID;
case MP_ETH_PHY1_PHYSID2:
return (MP_PHY_88E3015 & 0xFFFF) | MP_ETH_SMIR_RDVALID;
default:
return MP_ETH_SMIR_RDVALID;
}
}
return 0;
case MP_ETH_ICR:
return s->icr;
case MP_ETH_IMR:
return s->imr;
case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
return s->frx_queue[(offset - MP_ETH_FRDP0)/4];
case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
return s->rx_queue[(offset - MP_ETH_CRDP0)/4];
case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
return s->tx_queue[(offset - MP_ETH_CTDP0)/4];
default:
return 0;
}
}
static void mv88w8618_eth_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
mv88w8618_eth_state *s = opaque;
switch (offset) {
case MP_ETH_SMIR:
s->smir = value;
break;
case MP_ETH_PCXR:
s->vlan_header = ((value >> MP_ETH_PCXR_2BSM_BIT) & 1) * 2;
break;
case MP_ETH_SDCMR:
if (value & MP_ETH_CMD_TXHI) {
eth_send(s, 1);
}
if (value & MP_ETH_CMD_TXLO) {
eth_send(s, 0);
}
if (value & (MP_ETH_CMD_TXHI | MP_ETH_CMD_TXLO) && s->icr & s->imr) {
qemu_irq_raise(s->irq);
}
break;
case MP_ETH_ICR:
s->icr &= value;
break;
case MP_ETH_IMR:
s->imr = value;
if (s->icr & s->imr) {
qemu_irq_raise(s->irq);
}
break;
case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
s->frx_queue[(offset - MP_ETH_FRDP0)/4] = value;
break;
case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
s->rx_queue[(offset - MP_ETH_CRDP0)/4] =
s->cur_rx[(offset - MP_ETH_CRDP0)/4] = value;
break;
case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
s->tx_queue[(offset - MP_ETH_CTDP0)/4] = value;
break;
}
}
static const MemoryRegionOps mv88w8618_eth_ops = {
.read = mv88w8618_eth_read,
.write = mv88w8618_eth_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void eth_cleanup(NetClientState *nc)
{
mv88w8618_eth_state *s = qemu_get_nic_opaque(nc);
s->nic = NULL;
}
static NetClientInfo net_mv88w8618_info = {
.type = NET_CLIENT_OPTIONS_KIND_NIC,
.size = sizeof(NICState),
.can_receive = eth_can_receive,
.receive = eth_receive,
.cleanup = eth_cleanup,
};
static int mv88w8618_eth_init(SysBusDevice *dev)
{
mv88w8618_eth_state *s = FROM_SYSBUS(mv88w8618_eth_state, dev);
sysbus_init_irq(dev, &s->irq);
s->nic = qemu_new_nic(&net_mv88w8618_info, &s->conf,
object_get_typename(OBJECT(dev)), dev->qdev.id, s);
memory_region_init_io(&s->iomem, &mv88w8618_eth_ops, s, "mv88w8618-eth",
MP_ETH_SIZE);
sysbus_init_mmio(dev, &s->iomem);
return 0;
}
static const VMStateDescription mv88w8618_eth_vmsd = {
.name = "mv88w8618_eth",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(smir, mv88w8618_eth_state),
VMSTATE_UINT32(icr, mv88w8618_eth_state),
VMSTATE_UINT32(imr, mv88w8618_eth_state),
VMSTATE_UINT32(vlan_header, mv88w8618_eth_state),
VMSTATE_UINT32_ARRAY(tx_queue, mv88w8618_eth_state, 2),
VMSTATE_UINT32_ARRAY(rx_queue, mv88w8618_eth_state, 4),
VMSTATE_UINT32_ARRAY(frx_queue, mv88w8618_eth_state, 4),
VMSTATE_UINT32_ARRAY(cur_rx, mv88w8618_eth_state, 4),
VMSTATE_END_OF_LIST()
}
};
static Property mv88w8618_eth_properties[] = {
DEFINE_NIC_PROPERTIES(mv88w8618_eth_state, conf),
DEFINE_PROP_END_OF_LIST(),
};
static void mv88w8618_eth_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = mv88w8618_eth_init;
dc->vmsd = &mv88w8618_eth_vmsd;
dc->props = mv88w8618_eth_properties;
}
static const TypeInfo mv88w8618_eth_info = {
.name = "mv88w8618_eth",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mv88w8618_eth_state),
.class_init = mv88w8618_eth_class_init,
};
/* 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
/* Commmands */
#define MP_LCD_INST_SETPAGE0 0xB0
/* ... */
#define MP_LCD_INST_SETPAGE7 0xB7
#define MP_LCD_TEXTCOLOR 0xe0e0ff /* RRGGBB */
typedef struct musicpal_lcd_state {
SysBusDevice busdev;
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];
} musicpal_lcd_state;
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;
}
}
#define SET_LCD_PIXEL(depth, type) \
static inline void glue(set_lcd_pixel, depth) \
(musicpal_lcd_state *s, int x, int y, type col) \
{ \
int dx, dy; \
DisplaySurface *surface = qemu_console_surface(s->con); \
type *pixel = &((type *) 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; \
}
SET_LCD_PIXEL(8, uint8_t)
SET_LCD_PIXEL(16, uint16_t)
SET_LCD_PIXEL(32, uint32_t)
static void lcd_refresh(void *opaque)
{
musicpal_lcd_state *s = opaque;
DisplaySurface *surface = qemu_console_surface(s->con);
int x, y, col;
switch (surface_bits_per_pixel(surface)) {
case 0:
return;
#define LCD_REFRESH(depth, func) \
case depth: \
col = func(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))) { \
glue(set_lcd_pixel, depth)(s, x, y, col); \
} else { \
glue(set_lcd_pixel, depth)(s, x, y, 0); \
} \
} \
} \
break;
LCD_REFRESH(8, rgb_to_pixel8)
LCD_REFRESH(16, rgb_to_pixel16)
LCD_REFRESH(32, (is_surface_bgr(surface) ?
rgb_to_pixel32bgr : rgb_to_pixel32))
default:
hw_error("unsupported colour depth %i\n",
surface_bits_per_pixel(surface));
}
dpy_gfx_update(s->con, 0, 0, 128*3, 64*3);
}
static void lcd_invalidate(void *opaque)
{
}
static void musicpal_lcd_gpio_brigthness_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 int musicpal_lcd_init(SysBusDevice *dev)
{
musicpal_lcd_state *s = FROM_SYSBUS(musicpal_lcd_state, dev);
s->brightness = 7;
memory_region_init_io(&s->iomem, &musicpal_lcd_ops, s,
"musicpal-lcd", MP_LCD_SIZE);
sysbus_init_mmio(dev, &s->iomem);
s->con = graphic_console_init(lcd_refresh, lcd_invalidate,
NULL, NULL, s);
qemu_console_resize(s->con, 128*3, 64*3);
qdev_init_gpio_in(&dev->qdev, musicpal_lcd_gpio_brigthness_in, 3);
return 0;
}
static const VMStateDescription musicpal_lcd_vmsd = {
.name = "musicpal_lcd",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 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);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = musicpal_lcd_init;
dc->vmsd = &musicpal_lcd_vmsd;
}
static const TypeInfo musicpal_lcd_info = {
.name = "musicpal_lcd",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(musicpal_lcd_state),
.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
typedef struct mv88w8618_pic_state
{
SysBusDevice busdev;
MemoryRegion iomem;
uint32_t level;
uint32_t enabled;
qemu_irq parent_irq;
} mv88w8618_pic_state;
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 = FROM_SYSBUS(mv88w8618_pic_state,
SYS_BUS_DEVICE(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 int mv88w8618_pic_init(SysBusDevice *dev)
{
mv88w8618_pic_state *s = FROM_SYSBUS(mv88w8618_pic_state, dev);
qdev_init_gpio_in(&dev->qdev, mv88w8618_pic_set_irq, 32);
sysbus_init_irq(dev, &s->parent_irq);
memory_region_init_io(&s->iomem, &mv88w8618_pic_ops, s,
"musicpal-pic", MP_PIC_SIZE);
sysbus_init_mmio(dev, &s->iomem);
return 0;
}
static const VMStateDescription mv88w8618_pic_vmsd = {
.name = "mv88w8618_pic",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 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);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = mv88w8618_pic_init;
dc->reset = mv88w8618_pic_reset;
dc->vmsd = &mv88w8618_pic_vmsd;
}
static const TypeInfo mv88w8618_pic_info = {
.name = "mv88w8618_pic",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mv88w8618_pic_state),
.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;
typedef struct mv88w8618_pit_state {
SysBusDevice busdev;
MemoryRegion iomem;
mv88w8618_timer_state timer[4];
} mv88w8618_pit_state;
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)
{
QEMUBH *bh;
sysbus_init_irq(dev, &s->irq);
s->freq = freq;
bh = qemu_bh_new(mv88w8618_timer_tick, s);
s->ptimer = ptimer_init(bh);
}
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;
if (t->limit > 0) {
ptimer_set_limit(t->ptimer, t->limit, 1);
} else {
ptimer_stop(t->ptimer);
}
break;
case MP_PIT_CONTROL:
for (i = 0; i < 4; i++) {
t = &s->timer[i];
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);
}
value >>= 4;
}
break;
case MP_BOARD_RESET:
if (value == MP_BOARD_RESET_MAGIC) {
qemu_system_reset_request();
}
break;
}
}
static void mv88w8618_pit_reset(DeviceState *d)
{
mv88w8618_pit_state *s = FROM_SYSBUS(mv88w8618_pit_state,
SYS_BUS_DEVICE(d));
int i;
for (i = 0; i < 4; i++) {
ptimer_stop(s->timer[i].ptimer);
s->timer[i].limit = 0;
}
}
static const MemoryRegionOps mv88w8618_pit_ops = {
.read = mv88w8618_pit_read,
.write = mv88w8618_pit_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static int mv88w8618_pit_init(SysBusDevice *dev)
{
mv88w8618_pit_state *s = FROM_SYSBUS(mv88w8618_pit_state, 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, &mv88w8618_pit_ops, s,
"musicpal-pit", MP_PIT_SIZE);
sysbus_init_mmio(dev, &s->iomem);
return 0;
}
static const VMStateDescription mv88w8618_timer_vmsd = {
.name = "timer",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 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,
.minimum_version_id_old = 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);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = mv88w8618_pit_init;
dc->reset = mv88w8618_pit_reset;
dc->vmsd = &mv88w8618_pit_vmsd;
}
static const TypeInfo mv88w8618_pit_info = {
.name = "mv88w8618_pit",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mv88w8618_pit_state),
.class_init = mv88w8618_pit_class_init,
};
/* Flash config register offsets */
#define MP_FLASHCFG_CFGR0 0x04
typedef struct mv88w8618_flashcfg_state {
SysBusDevice busdev;
MemoryRegion iomem;
uint32_t cfgr0;
} mv88w8618_flashcfg_state;
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 int mv88w8618_flashcfg_init(SysBusDevice *dev)
{
mv88w8618_flashcfg_state *s = FROM_SYSBUS(mv88w8618_flashcfg_state, dev);
s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
memory_region_init_io(&s->iomem, &mv88w8618_flashcfg_ops, s,
"musicpal-flashcfg", MP_FLASHCFG_SIZE);
sysbus_init_mmio(dev, &s->iomem);