/* * 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/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" #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 /* Commmands */ #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 >*/ MemoryRegion iomem; 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); memory_region_init(&s->iomem, obj, "dummy", 0); sysbus_init_mmio(sbd, &s->iomem); 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("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)