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qemu/hw/musicpal.c
Blue Swirl d60efc6b0d Make CPURead/WriteFunc structure 'const' 
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-08-25 18:29:31 +00:00

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/*
* Marvell MV88W8618 / Freecom MusicPal emulation.
*
* Copyright (c) 2008 Jan Kiszka
*
* This code is licenced under the GNU GPL v2.
*/
#include "sysbus.h"
#include "arm-misc.h"
#include "devices.h"
#include "net.h"
#include "sysemu.h"
#include "boards.h"
#include "pc.h"
#include "qemu-timer.h"
#include "block.h"
#include "flash.h"
#include "console.h"
#include "i2c.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 0x34
/* 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;
qemu_irq irq;
uint32_t smir;
uint32_t icr;
uint32_t imr;
int mmio_index;
int vlan_header;
uint32_t tx_queue[2];
uint32_t rx_queue[4];
uint32_t frx_queue[4];
uint32_t cur_rx[4];
VLANClientState *vc;
} 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(VLANClientState *vc)
{
return 1;
}
static ssize_t eth_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
{
mv88w8618_eth_state *s = vc->opaque;
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;
uint8_t buf[2048];
int len;
do {
eth_tx_desc_get(desc_addr, &desc);
if (desc.cmdstat & MP_ETH_TX_OWN) {
len = desc.bytes;
if (len < 2048) {
cpu_physical_memory_read(desc.buffer, buf, len);
qemu_send_packet(s->vc, 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 = desc.next;
} while (desc_addr != s->tx_queue[queue_index]);
}
static uint32_t mv88w8618_eth_read(void *opaque, target_phys_addr_t offset)
{
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, target_phys_addr_t offset,
uint32_t value)
{
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 CPUReadMemoryFunc * const mv88w8618_eth_readfn[] = {
mv88w8618_eth_read,
mv88w8618_eth_read,
mv88w8618_eth_read
};
static CPUWriteMemoryFunc * const mv88w8618_eth_writefn[] = {
mv88w8618_eth_write,
mv88w8618_eth_write,
mv88w8618_eth_write
};
static void eth_cleanup(VLANClientState *vc)
{
mv88w8618_eth_state *s = vc->opaque;
cpu_unregister_io_memory(s->mmio_index);
qemu_free(s);
}
static void mv88w8618_eth_init(SysBusDevice *dev)
{
mv88w8618_eth_state *s = FROM_SYSBUS(mv88w8618_eth_state, dev);
sysbus_init_irq(dev, &s->irq);
s->vc = qdev_get_vlan_client(&dev->qdev,
eth_can_receive, eth_receive, NULL,
eth_cleanup, s);
s->mmio_index = cpu_register_io_memory(mv88w8618_eth_readfn,
mv88w8618_eth_writefn, s);
sysbus_init_mmio(dev, MP_ETH_SIZE, s->mmio_index);
}
/* 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;
uint32_t brightness;
uint32_t mode;
uint32_t irqctrl;
int page;
int page_off;
DisplayState *ds;
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; \
type *pixel = &((type *) ds_get_data(s->ds))[(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)
#include "pixel_ops.h"
static void lcd_refresh(void *opaque)
{
musicpal_lcd_state *s = opaque;
int x, y, col;
switch (ds_get_bits_per_pixel(s->ds)) {
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(s->ds->surface) ?
rgb_to_pixel32bgr : rgb_to_pixel32))
default:
hw_error("unsupported colour depth %i\n",
ds_get_bits_per_pixel(s->ds));
}
dpy_update(s->ds, 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 = (musicpal_lcd_state *) opaque;
s->brightness &= ~(1 << irq);
s->brightness |= level << irq;
}
static uint32_t musicpal_lcd_read(void *opaque, target_phys_addr_t offset)
{
musicpal_lcd_state *s = opaque;
switch (offset) {
case MP_LCD_IRQCTRL:
return s->irqctrl;
default:
return 0;
}
}
static void musicpal_lcd_write(void *opaque, target_phys_addr_t offset,
uint32_t value)
{
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 CPUReadMemoryFunc * const musicpal_lcd_readfn[] = {
musicpal_lcd_read,
musicpal_lcd_read,
musicpal_lcd_read
};
static CPUWriteMemoryFunc * const musicpal_lcd_writefn[] = {
musicpal_lcd_write,
musicpal_lcd_write,
musicpal_lcd_write
};
static void musicpal_lcd_init(SysBusDevice *dev)
{
musicpal_lcd_state *s = FROM_SYSBUS(musicpal_lcd_state, dev);
int iomemtype;
s->brightness = 7;
iomemtype = cpu_register_io_memory(musicpal_lcd_readfn,
musicpal_lcd_writefn, s);
sysbus_init_mmio(dev, MP_LCD_SIZE, iomemtype);
s->ds = graphic_console_init(lcd_refresh, lcd_invalidate,
NULL, NULL, s);
qemu_console_resize(s->ds, 128*3, 64*3);
qdev_init_gpio_in(&dev->qdev, musicpal_lcd_gpio_brigthness_in, 3);
}
/* 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;
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 uint32_t mv88w8618_pic_read(void *opaque, target_phys_addr_t offset)
{
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, target_phys_addr_t offset,
uint32_t value)
{
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(void *opaque)
{
mv88w8618_pic_state *s = opaque;
s->level = 0;
s->enabled = 0;
}
static CPUReadMemoryFunc * const mv88w8618_pic_readfn[] = {
mv88w8618_pic_read,
mv88w8618_pic_read,
mv88w8618_pic_read
};
static CPUWriteMemoryFunc * const mv88w8618_pic_writefn[] = {
mv88w8618_pic_write,
mv88w8618_pic_write,
mv88w8618_pic_write
};
static void mv88w8618_pic_init(SysBusDevice *dev)
{
mv88w8618_pic_state *s = FROM_SYSBUS(mv88w8618_pic_state, dev);
int iomemtype;
qdev_init_gpio_in(&dev->qdev, mv88w8618_pic_set_irq, 32);
sysbus_init_irq(dev, &s->parent_irq);
iomemtype = cpu_register_io_memory(mv88w8618_pic_readfn,
mv88w8618_pic_writefn, s);
sysbus_init_mmio(dev, MP_PIC_SIZE, iomemtype);
qemu_register_reset(mv88w8618_pic_reset, s);
}
/* 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;
mv88w8618_timer_state timer[4];
uint32_t control;
} 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 uint32_t mv88w8618_pit_read(void *opaque, target_phys_addr_t offset)
{
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, target_phys_addr_t offset,
uint32_t value)
{
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_set_limit(t->ptimer, t->limit, 1);
break;
case MP_PIT_CONTROL:
for (i = 0; i < 4; i++) {
if (value & 0xf) {
t = &s->timer[i];
ptimer_set_limit(t->ptimer, t->limit, 0);
ptimer_set_freq(t->ptimer, t->freq);
ptimer_run(t->ptimer, 0);
}
value >>= 4;
}
break;
case MP_BOARD_RESET:
if (value == MP_BOARD_RESET_MAGIC)
qemu_system_reset_request();
break;
}
}
static CPUReadMemoryFunc * const mv88w8618_pit_readfn[] = {
mv88w8618_pit_read,
mv88w8618_pit_read,
mv88w8618_pit_read
};
static CPUWriteMemoryFunc * const mv88w8618_pit_writefn[] = {
mv88w8618_pit_write,
mv88w8618_pit_write,
mv88w8618_pit_write
};
static void mv88w8618_pit_init(SysBusDevice *dev)
{
int iomemtype;
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);
}
iomemtype = cpu_register_io_memory(mv88w8618_pit_readfn,
mv88w8618_pit_writefn, s);
sysbus_init_mmio(dev, MP_PIT_SIZE, iomemtype);
}
/* Flash config register offsets */
#define MP_FLASHCFG_CFGR0 0x04
typedef struct mv88w8618_flashcfg_state {
SysBusDevice busdev;
uint32_t cfgr0;
} mv88w8618_flashcfg_state;
static uint32_t mv88w8618_flashcfg_read(void *opaque,
target_phys_addr_t offset)
{
mv88w8618_flashcfg_state *s = opaque;
switch (offset) {
case MP_FLASHCFG_CFGR0:
return s->cfgr0;
default:
return 0;
}
}
static void mv88w8618_flashcfg_write(void *opaque, target_phys_addr_t offset,
uint32_t value)
{
mv88w8618_flashcfg_state *s = opaque;
switch (offset) {
case MP_FLASHCFG_CFGR0:
s->cfgr0 = value;
break;
}
}
static CPUReadMemoryFunc * const mv88w8618_flashcfg_readfn[] = {
mv88w8618_flashcfg_read,
mv88w8618_flashcfg_read,
mv88w8618_flashcfg_read
};
static CPUWriteMemoryFunc * const mv88w8618_flashcfg_writefn[] = {
mv88w8618_flashcfg_write,
mv88w8618_flashcfg_write,
mv88w8618_flashcfg_write
};
static void mv88w8618_flashcfg_init(SysBusDevice *dev)
{
int iomemtype;
mv88w8618_flashcfg_state *s = FROM_SYSBUS(mv88w8618_flashcfg_state, dev);
s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
iomemtype = cpu_register_io_memory(mv88w8618_flashcfg_readfn,
mv88w8618_flashcfg_writefn, s);
sysbus_init_mmio(dev, MP_FLASHCFG_SIZE, iomemtype);
}
/* Misc register offsets */
#define MP_MISC_BOARD_REVISION 0x18
#define MP_BOARD_REVISION 0x31
static uint32_t musicpal_misc_read(void *opaque, target_phys_addr_t offset)
{
switch (offset) {
case MP_MISC_BOARD_REVISION:
return MP_BOARD_REVISION;
default:
return 0;
}
}
static void musicpal_misc_write(void *opaque, target_phys_addr_t offset,
uint32_t value)
{
}
static CPUReadMemoryFunc * const musicpal_misc_readfn[] = {
musicpal_misc_read,
musicpal_misc_read,
musicpal_misc_read,
};
static CPUWriteMemoryFunc * const musicpal_misc_writefn[] = {
musicpal_misc_write,
musicpal_misc_write,
musicpal_misc_write,
};
static void musicpal_misc_init(void)
{
int iomemtype;
iomemtype = cpu_register_io_memory(musicpal_misc_readfn,
musicpal_misc_writefn, NULL);
cpu_register_physical_memory(MP_MISC_BASE, MP_MISC_SIZE, iomemtype);
}
/* WLAN register offsets */
#define MP_WLAN_MAGIC1 0x11c
#define MP_WLAN_MAGIC2 0x124
static uint32_t mv88w8618_wlan_read(void *opaque, target_phys_addr_t offset)
{
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, target_phys_addr_t offset,
uint32_t value)
{
}
static CPUReadMemoryFunc * const mv88w8618_wlan_readfn[] = {
mv88w8618_wlan_read,
mv88w8618_wlan_read,
mv88w8618_wlan_read,
};
static CPUWriteMemoryFunc * const mv88w8618_wlan_writefn[] = {
mv88w8618_wlan_write,
mv88w8618_wlan_write,
mv88w8618_wlan_write,
};
static void mv88w8618_wlan_init(SysBusDevice *dev)
{
int iomemtype;
iomemtype = cpu_register_io_memory(mv88w8618_wlan_readfn,
mv88w8618_wlan_writefn, NULL);
sysbus_init_mmio(dev, MP_WLAN_SIZE, iomemtype);
}
/* GPIO register offsets */
#define MP_GPIO_OE_LO 0x008
#define MP_GPIO_OUT_LO 0x00c
#define MP_GPIO_IN_LO 0x010
#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_ISR_HI 0x520
/* GPIO bits & masks */
#define MP_GPIO_LCD_BRIGHTNESS 0x00070000
#define MP_GPIO_I2C_DATA_BIT 29
#define MP_GPIO_I2C_DATA (1 << MP_GPIO_I2C_DATA_BIT)
#define MP_GPIO_I2C_CLOCK_BIT 30
/* LCD brightness bits in GPIO_OE_HI */
#define MP_OE_LCD_BRIGHTNESS 0x0007
typedef struct musicpal_gpio_state {
SysBusDevice busdev;
uint32_t lcd_brightness;
uint32_t out_state;
uint32_t in_state;
uint32_t isr;
uint32_t i2c_read_data;
uint32_t key_released;
uint32_t keys_event; /* store the received key event */
qemu_irq irq;
qemu_irq out[5];
} musicpal_gpio_state;
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_keys_update(musicpal_gpio_state *s)
{
int gpio_mask = 0;
/* transform the key state for GPIO usage */
gpio_mask |= (s->keys_event & 15) << 8;
gpio_mask |= ((s->keys_event >> 4) & 15) << 19;
/* update GPIO state */
if (s->key_released) {
s->in_state |= gpio_mask;
} else {
s->in_state &= ~gpio_mask;
s->isr = gpio_mask;
qemu_irq_raise(s->irq);
}
}
static void musicpal_gpio_irq(void *opaque, int irq, int level)
{
musicpal_gpio_state *s = (musicpal_gpio_state *) opaque;
if (irq == 10) {
s->i2c_read_data = level;
}
/* receives keys bits */
if (irq <= 7) {
s->keys_event &= ~(1 << irq);
s->keys_event |= level << irq;
return;
}
/* receives key press/release */
if (irq == 8) {
s->key_released = level;
return;
}
/* a key has been transmited */
if (irq == 9 && level == 1)
musicpal_gpio_keys_update(s);
}
static uint32_t musicpal_gpio_read(void *opaque, target_phys_addr_t offset)
{
musicpal_gpio_state *s = (musicpal_gpio_state *) 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:
/* Update received I2C data */
s->in_state = (s->in_state & ~MP_GPIO_I2C_DATA) |
(s->i2c_read_data << MP_GPIO_I2C_DATA_BIT);
return s->in_state >> 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, target_phys_addr_t offset,
uint32_t value)
{
musicpal_gpio_state *s = (musicpal_gpio_state *) 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;
}
}
static CPUReadMemoryFunc * const musicpal_gpio_readfn[] = {
musicpal_gpio_read,
musicpal_gpio_read,
musicpal_gpio_read,
};
static CPUWriteMemoryFunc * const musicpal_gpio_writefn[] = {
musicpal_gpio_write,
musicpal_gpio_write,
musicpal_gpio_write,
};
static void musicpal_gpio_reset(musicpal_gpio_state *s)
{
s->in_state = 0xffffffff;
s->i2c_read_data = 1;
s->key_released = 0;
s->keys_event = 0;
s->isr = 0;
}
static void musicpal_gpio_init(SysBusDevice *dev)
{
musicpal_gpio_state *s = FROM_SYSBUS(musicpal_gpio_state, dev);
int iomemtype;
sysbus_init_irq(dev, &s->irq);
iomemtype = cpu_register_io_memory(musicpal_gpio_readfn,
musicpal_gpio_writefn, s);
sysbus_init_mmio(dev, MP_GPIO_SIZE, iomemtype);
musicpal_gpio_reset(s);
/* 3 brightness out + 2 lcd (data and clock ) */
qdev_init_gpio_out(&dev->qdev, s->out, 5);
/* 10 gpio button input + 1 I2C data input */
qdev_init_gpio_in(&dev->qdev, musicpal_gpio_irq, 11);
}
/* 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)
#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)
typedef struct musicpal_key_state {
SysBusDevice busdev;
uint32_t kbd_extended;
uint32_t keys_state;
qemu_irq out[10];
} musicpal_key_state;
static void musicpal_key_event(void *opaque, int keycode)
{
musicpal_key_state *s = (musicpal_key_state *) 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->keys_state & event))
event = 0;
}
if (event) {
/* transmit key event on GPIOS */
for (i = 0; i <= 7; i++)
qemu_set_irq(s->out[i], (event >> i) & 1);
/* handle key press/release */
if (keycode & KEY_RELEASED) {
s->keys_state |= event;
qemu_irq_raise(s->out[8]);
} else {
s->keys_state &= ~event;
qemu_irq_lower(s->out[8]);
}
/* signal that a key event occured */
qemu_irq_pulse(s->out[9]);
}
s->kbd_extended = 0;
}
static void musicpal_key_init(SysBusDevice *dev)
{
musicpal_key_state *s = FROM_SYSBUS(musicpal_key_state, dev);
sysbus_init_mmio(dev, 0x0, 0);
s->kbd_extended = 0;
s->keys_state = 0;
/* 8 key event GPIO + 1 key press/release + 1 strobe */
qdev_init_gpio_out(&dev->qdev, s->out, 10);
qemu_add_kbd_event_handler(musicpal_key_event, s);
}
static struct arm_boot_info musicpal_binfo = {
.loader_start = 0x0,
.board_id = 0x20e,
};
static void musicpal_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)
{
CPUState *env;
qemu_irq *cpu_pic;
qemu_irq pic[32];
DeviceState *dev;
DeviceState *i2c_dev;
DeviceState *lcd_dev;
DeviceState *key_dev;
#ifdef HAS_AUDIO
DeviceState *wm8750_dev;
SysBusDevice *s;
#endif
i2c_bus *i2c;
int i;
unsigned long flash_size;
DriveInfo *dinfo;
ram_addr_t sram_off;
if (!cpu_model)
cpu_model = "arm926";
env = cpu_init(cpu_model);
if (!env) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
cpu_pic = arm_pic_init_cpu(env);
/* For now we use a fixed - the original - RAM size */
cpu_register_physical_memory(0, MP_RAM_DEFAULT_SIZE,
qemu_ram_alloc(MP_RAM_DEFAULT_SIZE));
sram_off = qemu_ram_alloc(MP_SRAM_SIZE);
cpu_register_physical_memory(MP_SRAM_BASE, MP_SRAM_SIZE, sram_off);
dev = sysbus_create_simple("mv88w8618_pic", MP_PIC_BASE,
cpu_pic[ARM_PIC_CPU_IRQ]);
for (i = 0; i < 32; i++) {
pic[i] = qdev_get_gpio_in(dev, i);
}
sysbus_create_varargs("mv88w8618_pit", MP_PIT_BASE, pic[MP_TIMER1_IRQ],
pic[MP_TIMER2_IRQ], pic[MP_TIMER3_IRQ],
pic[MP_TIMER4_IRQ], NULL);
if (serial_hds[0])
serial_mm_init(MP_UART1_BASE, 2, pic[MP_UART1_IRQ], 1825000,
serial_hds[0], 1);
if (serial_hds[1])
serial_mm_init(MP_UART2_BASE, 2, pic[MP_UART2_IRQ], 1825000,
serial_hds[1], 1);
/* Register flash */
dinfo = drive_get(IF_PFLASH, 0, 0);
if (dinfo) {
flash_size = bdrv_getlength(dinfo->bdrv);
if (flash_size != 8*1024*1024 && flash_size != 16*1024*1024 &&
flash_size != 32*1024*1024) {
fprintf(stderr, "Invalid flash image size\n");
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(0-MP_FLASH_SIZE_MAX, qemu_ram_alloc(flash_size),
dinfo->bdrv, 0x10000,
(flash_size + 0xffff) >> 16,
MP_FLASH_SIZE_MAX / flash_size,
2, 0x00BF, 0x236D, 0x0000, 0x0000,
0x5555, 0x2AAA);
}
sysbus_create_simple("mv88w8618_flashcfg", MP_FLASHCFG_BASE, NULL);
qemu_check_nic_model(&nd_table[0], "mv88w8618");
dev = qdev_create(NULL, "mv88w8618_eth");
dev->nd = &nd_table[0];
qdev_init(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, MP_ETH_BASE);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[MP_ETH_IRQ]);
sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);
musicpal_misc_init();
dev = sysbus_create_simple("musicpal_gpio", MP_GPIO_BASE, pic[MP_GPIO_IRQ]);
i2c_dev = sysbus_create_simple("bitbang_i2c", 0, NULL);
i2c = (i2c_bus *)qdev_get_child_bus(i2c_dev, "i2c");
lcd_dev = sysbus_create_simple("musicpal_lcd", MP_LCD_BASE, NULL);
key_dev = sysbus_create_simple("musicpal_key", 0, NULL);
/* I2C read data */
qdev_connect_gpio_out(i2c_dev, 0, qdev_get_gpio_in(dev, 10));
/* 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 < 10; i++)
qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i));
#ifdef HAS_AUDIO
wm8750_dev = i2c_create_slave(i2c, "wm8750", MP_WM_ADDR);
dev = qdev_create(NULL, "mv88w8618_audio");
s = sysbus_from_qdev(dev);
qdev_prop_set_ptr(dev, "wm8750", wm8750_dev);
qdev_init(dev);
sysbus_mmio_map(s, 0, MP_AUDIO_BASE);
sysbus_connect_irq(s, 0, pic[MP_AUDIO_IRQ]);
#endif
musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
musicpal_binfo.kernel_filename = kernel_filename;
musicpal_binfo.kernel_cmdline = kernel_cmdline;
musicpal_binfo.initrd_filename = initrd_filename;
arm_load_kernel(env, &musicpal_binfo);
}
static QEMUMachine musicpal_machine = {
.name = "musicpal",
.desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)",
.init = musicpal_init,
};
static void musicpal_machine_init(void)
{
qemu_register_machine(&musicpal_machine);
}
machine_init(musicpal_machine_init);
static void musicpal_register_devices(void)
{
sysbus_register_dev("mv88w8618_pic", sizeof(mv88w8618_pic_state),
mv88w8618_pic_init);
sysbus_register_dev("mv88w8618_pit", sizeof(mv88w8618_pit_state),
mv88w8618_pit_init);
sysbus_register_dev("mv88w8618_flashcfg", sizeof(mv88w8618_flashcfg_state),
mv88w8618_flashcfg_init);
sysbus_register_dev("mv88w8618_eth", sizeof(mv88w8618_eth_state),
mv88w8618_eth_init);
sysbus_register_dev("mv88w8618_wlan", sizeof(SysBusDevice),
mv88w8618_wlan_init);
sysbus_register_dev("musicpal_lcd", sizeof(musicpal_lcd_state),
musicpal_lcd_init);
sysbus_register_dev("musicpal_gpio", sizeof(musicpal_gpio_state),
musicpal_gpio_init);
sysbus_register_dev("musicpal_key", sizeof(musicpal_key_state),
musicpal_key_init);
}
device_init(musicpal_register_devices)
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