diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2013-03-01 13:59:19 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-04-08 18:13:12 +0200 |
commit | 49ab747f668f421138d5b40d83fa279c4c5e278d (patch) | |
tree | 943225a04eac885aed038731adf058f2250a2f40 /hw/display/pl110.c | |
parent | ce3b494cb504f96992f2d37ebc8f56deed202b06 (diff) |
hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, moving
them to subdirectories of hw/.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/display/pl110.c')
-rw-r--r-- | hw/display/pl110.c | 533 |
1 files changed, 533 insertions, 0 deletions
diff --git a/hw/display/pl110.c b/hw/display/pl110.c new file mode 100644 index 0000000000..fbef675f9c --- /dev/null +++ b/hw/display/pl110.c @@ -0,0 +1,533 @@ +/* + * Arm PrimeCell PL110 Color LCD Controller + * + * Copyright (c) 2005-2009 CodeSourcery. + * Written by Paul Brook + * + * This code is licensed under the GNU LGPL + */ + +#include "hw/sysbus.h" +#include "ui/console.h" +#include "hw/framebuffer.h" +#include "ui/pixel_ops.h" + +#define PL110_CR_EN 0x001 +#define PL110_CR_BGR 0x100 +#define PL110_CR_BEBO 0x200 +#define PL110_CR_BEPO 0x400 +#define PL110_CR_PWR 0x800 + +enum pl110_bppmode +{ + BPP_1, + BPP_2, + BPP_4, + BPP_8, + BPP_16, + BPP_32, + BPP_16_565, /* PL111 only */ + BPP_12 /* PL111 only */ +}; + + +/* The Versatile/PB uses a slightly modified PL110 controller. */ +enum pl110_version +{ + PL110, + PL110_VERSATILE, + PL111 +}; + +typedef struct { + SysBusDevice busdev; + MemoryRegion iomem; + QemuConsole *con; + + int version; + uint32_t timing[4]; + uint32_t cr; + uint32_t upbase; + uint32_t lpbase; + uint32_t int_status; + uint32_t int_mask; + int cols; + int rows; + enum pl110_bppmode bpp; + int invalidate; + uint32_t mux_ctrl; + uint32_t palette[256]; + uint32_t raw_palette[128]; + qemu_irq irq; +} pl110_state; + +static int vmstate_pl110_post_load(void *opaque, int version_id); + +static const VMStateDescription vmstate_pl110 = { + .name = "pl110", + .version_id = 2, + .minimum_version_id = 1, + .post_load = vmstate_pl110_post_load, + .fields = (VMStateField[]) { + VMSTATE_INT32(version, pl110_state), + VMSTATE_UINT32_ARRAY(timing, pl110_state, 4), + VMSTATE_UINT32(cr, pl110_state), + VMSTATE_UINT32(upbase, pl110_state), + VMSTATE_UINT32(lpbase, pl110_state), + VMSTATE_UINT32(int_status, pl110_state), + VMSTATE_UINT32(int_mask, pl110_state), + VMSTATE_INT32(cols, pl110_state), + VMSTATE_INT32(rows, pl110_state), + VMSTATE_UINT32(bpp, pl110_state), + VMSTATE_INT32(invalidate, pl110_state), + VMSTATE_UINT32_ARRAY(palette, pl110_state, 256), + VMSTATE_UINT32_ARRAY(raw_palette, pl110_state, 128), + VMSTATE_UINT32_V(mux_ctrl, pl110_state, 2), + VMSTATE_END_OF_LIST() + } +}; + +static const unsigned char pl110_id[] = +{ 0x10, 0x11, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 }; + +/* The Arm documentation (DDI0224C) says the CLDC on the Versatile board + has a different ID. However Linux only looks for the normal ID. */ +#if 0 +static const unsigned char pl110_versatile_id[] = +{ 0x93, 0x10, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 }; +#else +#define pl110_versatile_id pl110_id +#endif + +static const unsigned char pl111_id[] = { + 0x11, 0x11, 0x24, 0x00, 0x0d, 0xf0, 0x05, 0xb1 +}; + +/* Indexed by pl110_version */ +static const unsigned char *idregs[] = { + pl110_id, + pl110_versatile_id, + pl111_id +}; + +#define BITS 8 +#include "hw/pl110_template.h" +#define BITS 15 +#include "hw/pl110_template.h" +#define BITS 16 +#include "hw/pl110_template.h" +#define BITS 24 +#include "hw/pl110_template.h" +#define BITS 32 +#include "hw/pl110_template.h" + +static int pl110_enabled(pl110_state *s) +{ + return (s->cr & PL110_CR_EN) && (s->cr & PL110_CR_PWR); +} + +static void pl110_update_display(void *opaque) +{ + pl110_state *s = (pl110_state *)opaque; + DisplaySurface *surface = qemu_console_surface(s->con); + drawfn* fntable; + drawfn fn; + int dest_width; + int src_width; + int bpp_offset; + int first; + int last; + + if (!pl110_enabled(s)) + return; + + switch (surface_bits_per_pixel(surface)) { + case 0: + return; + case 8: + fntable = pl110_draw_fn_8; + dest_width = 1; + break; + case 15: + fntable = pl110_draw_fn_15; + dest_width = 2; + break; + case 16: + fntable = pl110_draw_fn_16; + dest_width = 2; + break; + case 24: + fntable = pl110_draw_fn_24; + dest_width = 3; + break; + case 32: + fntable = pl110_draw_fn_32; + dest_width = 4; + break; + default: + fprintf(stderr, "pl110: Bad color depth\n"); + exit(1); + } + if (s->cr & PL110_CR_BGR) + bpp_offset = 0; + else + bpp_offset = 24; + + if ((s->version != PL111) && (s->bpp == BPP_16)) { + /* The PL110's native 16 bit mode is 5551; however + * most boards with a PL110 implement an external + * mux which allows bits to be reshuffled to give + * 565 format. The mux is typically controlled by + * an external system register. + * This is controlled by a GPIO input pin + * so boards can wire it up to their register. + * + * The PL111 straightforwardly implements both + * 5551 and 565 under control of the bpp field + * in the LCDControl register. + */ + switch (s->mux_ctrl) { + case 3: /* 565 BGR */ + bpp_offset = (BPP_16_565 - BPP_16); + break; + case 1: /* 5551 */ + break; + case 0: /* 888; also if we have loaded vmstate from an old version */ + case 2: /* 565 RGB */ + default: + /* treat as 565 but honour BGR bit */ + bpp_offset += (BPP_16_565 - BPP_16); + break; + } + } + + if (s->cr & PL110_CR_BEBO) + fn = fntable[s->bpp + 8 + bpp_offset]; + else if (s->cr & PL110_CR_BEPO) + fn = fntable[s->bpp + 16 + bpp_offset]; + else + fn = fntable[s->bpp + bpp_offset]; + + src_width = s->cols; + switch (s->bpp) { + case BPP_1: + src_width >>= 3; + break; + case BPP_2: + src_width >>= 2; + break; + case BPP_4: + src_width >>= 1; + break; + case BPP_8: + break; + case BPP_16: + case BPP_16_565: + case BPP_12: + src_width <<= 1; + break; + case BPP_32: + src_width <<= 2; + break; + } + dest_width *= s->cols; + first = 0; + framebuffer_update_display(surface, sysbus_address_space(&s->busdev), + s->upbase, s->cols, s->rows, + src_width, dest_width, 0, + s->invalidate, + fn, s->palette, + &first, &last); + if (first >= 0) { + dpy_gfx_update(s->con, 0, first, s->cols, last - first + 1); + } + s->invalidate = 0; +} + +static void pl110_invalidate_display(void * opaque) +{ + pl110_state *s = (pl110_state *)opaque; + s->invalidate = 1; + if (pl110_enabled(s)) { + qemu_console_resize(s->con, s->cols, s->rows); + } +} + +static void pl110_update_palette(pl110_state *s, int n) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + int i; + uint32_t raw; + unsigned int r, g, b; + + raw = s->raw_palette[n]; + n <<= 1; + for (i = 0; i < 2; i++) { + r = (raw & 0x1f) << 3; + raw >>= 5; + g = (raw & 0x1f) << 3; + raw >>= 5; + b = (raw & 0x1f) << 3; + /* The I bit is ignored. */ + raw >>= 6; + switch (surface_bits_per_pixel(surface)) { + case 8: + s->palette[n] = rgb_to_pixel8(r, g, b); + break; + case 15: + s->palette[n] = rgb_to_pixel15(r, g, b); + break; + case 16: + s->palette[n] = rgb_to_pixel16(r, g, b); + break; + case 24: + case 32: + s->palette[n] = rgb_to_pixel32(r, g, b); + break; + } + n++; + } +} + +static void pl110_resize(pl110_state *s, int width, int height) +{ + if (width != s->cols || height != s->rows) { + if (pl110_enabled(s)) { + qemu_console_resize(s->con, width, height); + } + } + s->cols = width; + s->rows = height; +} + +/* Update interrupts. */ +static void pl110_update(pl110_state *s) +{ + /* TODO: Implement interrupts. */ +} + +static uint64_t pl110_read(void *opaque, hwaddr offset, + unsigned size) +{ + pl110_state *s = (pl110_state *)opaque; + + if (offset >= 0xfe0 && offset < 0x1000) { + return idregs[s->version][(offset - 0xfe0) >> 2]; + } + if (offset >= 0x200 && offset < 0x400) { + return s->raw_palette[(offset - 0x200) >> 2]; + } + switch (offset >> 2) { + case 0: /* LCDTiming0 */ + return s->timing[0]; + case 1: /* LCDTiming1 */ + return s->timing[1]; + case 2: /* LCDTiming2 */ + return s->timing[2]; + case 3: /* LCDTiming3 */ + return s->timing[3]; + case 4: /* LCDUPBASE */ + return s->upbase; + case 5: /* LCDLPBASE */ + return s->lpbase; + case 6: /* LCDIMSC */ + if (s->version != PL110) { + return s->cr; + } + return s->int_mask; + case 7: /* LCDControl */ + if (s->version != PL110) { + return s->int_mask; + } + return s->cr; + case 8: /* LCDRIS */ + return s->int_status; + case 9: /* LCDMIS */ + return s->int_status & s->int_mask; + case 11: /* LCDUPCURR */ + /* TODO: Implement vertical refresh. */ + return s->upbase; + case 12: /* LCDLPCURR */ + return s->lpbase; + default: + qemu_log_mask(LOG_GUEST_ERROR, + "pl110_read: Bad offset %x\n", (int)offset); + return 0; + } +} + +static void pl110_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + pl110_state *s = (pl110_state *)opaque; + int n; + + /* For simplicity invalidate the display whenever a control register + is written to. */ + s->invalidate = 1; + if (offset >= 0x200 && offset < 0x400) { + /* Palette. */ + n = (offset - 0x200) >> 2; + s->raw_palette[(offset - 0x200) >> 2] = val; + pl110_update_palette(s, n); + return; + } + switch (offset >> 2) { + case 0: /* LCDTiming0 */ + s->timing[0] = val; + n = ((val & 0xfc) + 4) * 4; + pl110_resize(s, n, s->rows); + break; + case 1: /* LCDTiming1 */ + s->timing[1] = val; + n = (val & 0x3ff) + 1; + pl110_resize(s, s->cols, n); + break; + case 2: /* LCDTiming2 */ + s->timing[2] = val; + break; + case 3: /* LCDTiming3 */ + s->timing[3] = val; + break; + case 4: /* LCDUPBASE */ + s->upbase = val; + break; + case 5: /* LCDLPBASE */ + s->lpbase = val; + break; + case 6: /* LCDIMSC */ + if (s->version != PL110) { + goto control; + } + imsc: + s->int_mask = val; + pl110_update(s); + break; + case 7: /* LCDControl */ + if (s->version != PL110) { + goto imsc; + } + control: + s->cr = val; + s->bpp = (val >> 1) & 7; + if (pl110_enabled(s)) { + qemu_console_resize(s->con, s->cols, s->rows); + } + break; + case 10: /* LCDICR */ + s->int_status &= ~val; + pl110_update(s); + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, + "pl110_write: Bad offset %x\n", (int)offset); + } +} + +static const MemoryRegionOps pl110_ops = { + .read = pl110_read, + .write = pl110_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void pl110_mux_ctrl_set(void *opaque, int line, int level) +{ + pl110_state *s = (pl110_state *)opaque; + s->mux_ctrl = level; +} + +static int vmstate_pl110_post_load(void *opaque, int version_id) +{ + pl110_state *s = opaque; + /* Make sure we redraw, and at the right size */ + pl110_invalidate_display(s); + return 0; +} + +static int pl110_init(SysBusDevice *dev) +{ + pl110_state *s = FROM_SYSBUS(pl110_state, dev); + + memory_region_init_io(&s->iomem, &pl110_ops, s, "pl110", 0x1000); + sysbus_init_mmio(dev, &s->iomem); + sysbus_init_irq(dev, &s->irq); + qdev_init_gpio_in(&s->busdev.qdev, pl110_mux_ctrl_set, 1); + s->con = graphic_console_init(pl110_update_display, + pl110_invalidate_display, + NULL, NULL, s); + return 0; +} + +static int pl110_versatile_init(SysBusDevice *dev) +{ + pl110_state *s = FROM_SYSBUS(pl110_state, dev); + s->version = PL110_VERSATILE; + return pl110_init(dev); +} + +static int pl111_init(SysBusDevice *dev) +{ + pl110_state *s = FROM_SYSBUS(pl110_state, dev); + s->version = PL111; + return pl110_init(dev); +} + +static void pl110_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); + + k->init = pl110_init; + dc->no_user = 1; + dc->vmsd = &vmstate_pl110; +} + +static const TypeInfo pl110_info = { + .name = "pl110", + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(pl110_state), + .class_init = pl110_class_init, +}; + +static void pl110_versatile_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); + + k->init = pl110_versatile_init; + dc->no_user = 1; + dc->vmsd = &vmstate_pl110; +} + +static const TypeInfo pl110_versatile_info = { + .name = "pl110_versatile", + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(pl110_state), + .class_init = pl110_versatile_class_init, +}; + +static void pl111_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); + + k->init = pl111_init; + dc->no_user = 1; + dc->vmsd = &vmstate_pl110; +} + +static const TypeInfo pl111_info = { + .name = "pl111", + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(pl110_state), + .class_init = pl111_class_init, +}; + +static void pl110_register_types(void) +{ + type_register_static(&pl110_info); + type_register_static(&pl110_versatile_info); + type_register_static(&pl111_info); +} + +type_init(pl110_register_types) |