diff options
Diffstat (limited to 'qemu/hw/misc/bcm2835_property.c')
| -rw-r--r-- | qemu/hw/misc/bcm2835_property.c | 424 |
1 files changed, 0 insertions, 424 deletions
diff --git a/qemu/hw/misc/bcm2835_property.c b/qemu/hw/misc/bcm2835_property.c deleted file mode 100644 index 530411f84..000000000 --- a/qemu/hw/misc/bcm2835_property.c +++ /dev/null @@ -1,424 +0,0 @@ -/* - * Raspberry Pi emulation (c) 2012 Gregory Estrade - * This code is licensed under the GNU GPLv2 and later. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "hw/misc/bcm2835_property.h" -#include "hw/misc/bcm2835_mbox_defs.h" -#include "sysemu/dma.h" - -/* https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface */ - -static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) -{ - uint32_t tag; - uint32_t bufsize; - uint32_t tot_len; - size_t resplen; - uint32_t tmp; - int n; - uint32_t offset, length, color; - uint32_t xres, yres, xoffset, yoffset, bpp, pixo, alpha; - uint32_t *newxres = NULL, *newyres = NULL, *newxoffset = NULL, - *newyoffset = NULL, *newbpp = NULL, *newpixo = NULL, *newalpha = NULL; - - value &= ~0xf; - - s->addr = value; - - tot_len = ldl_le_phys(&s->dma_as, value); - - /* @(addr + 4) : Buffer response code */ - value = s->addr + 8; - while (value + 8 <= s->addr + tot_len) { - tag = ldl_le_phys(&s->dma_as, value); - bufsize = ldl_le_phys(&s->dma_as, value + 4); - /* @(value + 8) : Request/response indicator */ - resplen = 0; - switch (tag) { - case 0x00000000: /* End tag */ - break; - case 0x00000001: /* Get firmware revision */ - stl_le_phys(&s->dma_as, value + 12, 346337); - resplen = 4; - break; - case 0x00010001: /* Get board model */ - qemu_log_mask(LOG_UNIMP, - "bcm2835_property: %x get board model NYI\n", tag); - resplen = 4; - break; - case 0x00010002: /* Get board revision */ - stl_le_phys(&s->dma_as, value + 12, s->board_rev); - resplen = 4; - break; - case 0x00010003: /* Get board MAC address */ - resplen = sizeof(s->macaddr.a); - dma_memory_write(&s->dma_as, value + 12, s->macaddr.a, resplen); - break; - case 0x00010004: /* Get board serial */ - qemu_log_mask(LOG_UNIMP, - "bcm2835_property: %x get board serial NYI\n", tag); - resplen = 8; - break; - case 0x00010005: /* Get ARM memory */ - /* base */ - stl_le_phys(&s->dma_as, value + 12, 0); - /* size */ - stl_le_phys(&s->dma_as, value + 16, s->fbdev->vcram_base); - resplen = 8; - break; - case 0x00010006: /* Get VC memory */ - /* base */ - stl_le_phys(&s->dma_as, value + 12, s->fbdev->vcram_base); - /* size */ - stl_le_phys(&s->dma_as, value + 16, s->fbdev->vcram_size); - resplen = 8; - break; - case 0x00028001: /* Set power state */ - /* Assume that whatever device they asked for exists, - * and we'll just claim we set it to the desired state - */ - tmp = ldl_le_phys(&s->dma_as, value + 16); - stl_le_phys(&s->dma_as, value + 16, (tmp & 1)); - resplen = 8; - break; - - /* Clocks */ - - case 0x00030001: /* Get clock state */ - stl_le_phys(&s->dma_as, value + 16, 0x1); - resplen = 8; - break; - - case 0x00038001: /* Set clock state */ - qemu_log_mask(LOG_UNIMP, - "bcm2835_property: %x set clock state NYI\n", tag); - resplen = 8; - break; - - case 0x00030002: /* Get clock rate */ - case 0x00030004: /* Get max clock rate */ - case 0x00030007: /* Get min clock rate */ - switch (ldl_le_phys(&s->dma_as, value + 12)) { - case 1: /* EMMC */ - stl_le_phys(&s->dma_as, value + 16, 50000000); - break; - case 2: /* UART */ - stl_le_phys(&s->dma_as, value + 16, 3000000); - break; - default: - stl_le_phys(&s->dma_as, value + 16, 700000000); - break; - } - resplen = 8; - break; - - case 0x00038002: /* Set clock rate */ - case 0x00038004: /* Set max clock rate */ - case 0x00038007: /* Set min clock rate */ - qemu_log_mask(LOG_UNIMP, - "bcm2835_property: %x set clock rates NYI\n", tag); - resplen = 8; - break; - - /* Temperature */ - - case 0x00030006: /* Get temperature */ - stl_le_phys(&s->dma_as, value + 16, 25000); - resplen = 8; - break; - - case 0x0003000A: /* Get max temperature */ - stl_le_phys(&s->dma_as, value + 16, 99000); - resplen = 8; - break; - - /* Frame buffer */ - - case 0x00040001: /* Allocate buffer */ - stl_le_phys(&s->dma_as, value + 12, s->fbdev->base); - stl_le_phys(&s->dma_as, value + 16, s->fbdev->size); - resplen = 8; - break; - case 0x00048001: /* Release buffer */ - resplen = 0; - break; - case 0x00040002: /* Blank screen */ - resplen = 4; - break; - case 0x00040003: /* Get display width/height */ - case 0x00040004: - stl_le_phys(&s->dma_as, value + 12, s->fbdev->xres); - stl_le_phys(&s->dma_as, value + 16, s->fbdev->yres); - resplen = 8; - break; - case 0x00044003: /* Test display width/height */ - case 0x00044004: - resplen = 8; - break; - case 0x00048003: /* Set display width/height */ - case 0x00048004: - xres = ldl_le_phys(&s->dma_as, value + 12); - newxres = &xres; - yres = ldl_le_phys(&s->dma_as, value + 16); - newyres = &yres; - resplen = 8; - break; - case 0x00040005: /* Get depth */ - stl_le_phys(&s->dma_as, value + 12, s->fbdev->bpp); - resplen = 4; - break; - case 0x00044005: /* Test depth */ - resplen = 4; - break; - case 0x00048005: /* Set depth */ - bpp = ldl_le_phys(&s->dma_as, value + 12); - newbpp = &bpp; - resplen = 4; - break; - case 0x00040006: /* Get pixel order */ - stl_le_phys(&s->dma_as, value + 12, s->fbdev->pixo); - resplen = 4; - break; - case 0x00044006: /* Test pixel order */ - resplen = 4; - break; - case 0x00048006: /* Set pixel order */ - pixo = ldl_le_phys(&s->dma_as, value + 12); - newpixo = &pixo; - resplen = 4; - break; - case 0x00040007: /* Get alpha */ - stl_le_phys(&s->dma_as, value + 12, s->fbdev->alpha); - resplen = 4; - break; - case 0x00044007: /* Test pixel alpha */ - resplen = 4; - break; - case 0x00048007: /* Set alpha */ - alpha = ldl_le_phys(&s->dma_as, value + 12); - newalpha = α - resplen = 4; - break; - case 0x00040008: /* Get pitch */ - stl_le_phys(&s->dma_as, value + 12, s->fbdev->pitch); - resplen = 4; - break; - case 0x00040009: /* Get virtual offset */ - stl_le_phys(&s->dma_as, value + 12, s->fbdev->xoffset); - stl_le_phys(&s->dma_as, value + 16, s->fbdev->yoffset); - resplen = 8; - break; - case 0x00044009: /* Test virtual offset */ - resplen = 8; - break; - case 0x00048009: /* Set virtual offset */ - xoffset = ldl_le_phys(&s->dma_as, value + 12); - newxoffset = &xoffset; - yoffset = ldl_le_phys(&s->dma_as, value + 16); - newyoffset = &yoffset; - resplen = 8; - break; - case 0x0004000a: /* Get/Test/Set overscan */ - case 0x0004400a: - case 0x0004800a: - stl_le_phys(&s->dma_as, value + 12, 0); - stl_le_phys(&s->dma_as, value + 16, 0); - stl_le_phys(&s->dma_as, value + 20, 0); - stl_le_phys(&s->dma_as, value + 24, 0); - resplen = 16; - break; - case 0x0004800b: /* Set palette */ - offset = ldl_le_phys(&s->dma_as, value + 12); - length = ldl_le_phys(&s->dma_as, value + 16); - n = 0; - while (n < length - offset) { - color = ldl_le_phys(&s->dma_as, value + 20 + (n << 2)); - stl_le_phys(&s->dma_as, - s->fbdev->vcram_base + ((offset + n) << 2), color); - n++; - } - stl_le_phys(&s->dma_as, value + 12, 0); - resplen = 4; - break; - - case 0x00060001: /* Get DMA channels */ - /* channels 2-5 */ - stl_le_phys(&s->dma_as, value + 12, 0x003C); - resplen = 4; - break; - - case 0x00050001: /* Get command line */ - resplen = 0; - break; - - default: - qemu_log_mask(LOG_GUEST_ERROR, - "bcm2835_property: unhandled tag %08x\n", tag); - break; - } - - if (tag == 0) { - break; - } - - stl_le_phys(&s->dma_as, value + 8, (1 << 31) | resplen); - value += bufsize + 12; - } - - /* Reconfigure framebuffer if required */ - if (newxres || newyres || newxoffset || newyoffset || newbpp || newpixo - || newalpha) { - bcm2835_fb_reconfigure(s->fbdev, newxres, newyres, newxoffset, - newyoffset, newbpp, newpixo, newalpha); - } - - /* Buffer response code */ - stl_le_phys(&s->dma_as, s->addr + 4, (1 << 31)); -} - -static uint64_t bcm2835_property_read(void *opaque, hwaddr offset, - unsigned size) -{ - BCM2835PropertyState *s = opaque; - uint32_t res = 0; - - switch (offset) { - case MBOX_AS_DATA: - res = MBOX_CHAN_PROPERTY | s->addr; - s->pending = false; - qemu_set_irq(s->mbox_irq, 0); - break; - - case MBOX_AS_PENDING: - res = s->pending; - break; - - default: - qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset %"HWADDR_PRIx"\n", - __func__, offset); - return 0; - } - - return res; -} - -static void bcm2835_property_write(void *opaque, hwaddr offset, - uint64_t value, unsigned size) -{ - BCM2835PropertyState *s = opaque; - - switch (offset) { - case MBOX_AS_DATA: - /* bcm2835_mbox should check our pending status before pushing */ - assert(!s->pending); - s->pending = true; - bcm2835_property_mbox_push(s, value); - qemu_set_irq(s->mbox_irq, 1); - break; - - default: - qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset %"HWADDR_PRIx"\n", - __func__, offset); - return; - } -} - -static const MemoryRegionOps bcm2835_property_ops = { - .read = bcm2835_property_read, - .write = bcm2835_property_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid.min_access_size = 4, - .valid.max_access_size = 4, -}; - -static const VMStateDescription vmstate_bcm2835_property = { - .name = TYPE_BCM2835_PROPERTY, - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_MACADDR(macaddr, BCM2835PropertyState), - VMSTATE_UINT32(addr, BCM2835PropertyState), - VMSTATE_BOOL(pending, BCM2835PropertyState), - VMSTATE_END_OF_LIST() - } -}; - -static void bcm2835_property_init(Object *obj) -{ - BCM2835PropertyState *s = BCM2835_PROPERTY(obj); - - memory_region_init_io(&s->iomem, OBJECT(s), &bcm2835_property_ops, s, - TYPE_BCM2835_PROPERTY, 0x10); - sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem); - sysbus_init_irq(SYS_BUS_DEVICE(s), &s->mbox_irq); -} - -static void bcm2835_property_reset(DeviceState *dev) -{ - BCM2835PropertyState *s = BCM2835_PROPERTY(dev); - - s->pending = false; -} - -static void bcm2835_property_realize(DeviceState *dev, Error **errp) -{ - BCM2835PropertyState *s = BCM2835_PROPERTY(dev); - Object *obj; - Error *err = NULL; - - obj = object_property_get_link(OBJECT(dev), "fb", &err); - if (obj == NULL) { - error_setg(errp, "%s: required fb link not found: %s", - __func__, error_get_pretty(err)); - return; - } - - s->fbdev = BCM2835_FB(obj); - - obj = object_property_get_link(OBJECT(dev), "dma-mr", &err); - if (obj == NULL) { - error_setg(errp, "%s: required dma-mr link not found: %s", - __func__, error_get_pretty(err)); - return; - } - - s->dma_mr = MEMORY_REGION(obj); - address_space_init(&s->dma_as, s->dma_mr, NULL); - - /* TODO: connect to MAC address of USB NIC device, once we emulate it */ - qemu_macaddr_default_if_unset(&s->macaddr); - - bcm2835_property_reset(dev); -} - -static Property bcm2835_property_props[] = { - DEFINE_PROP_UINT32("board-rev", BCM2835PropertyState, board_rev, 0), - DEFINE_PROP_END_OF_LIST() -}; - -static void bcm2835_property_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->props = bcm2835_property_props; - dc->realize = bcm2835_property_realize; - dc->vmsd = &vmstate_bcm2835_property; -} - -static TypeInfo bcm2835_property_info = { - .name = TYPE_BCM2835_PROPERTY, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(BCM2835PropertyState), - .class_init = bcm2835_property_class_init, - .instance_init = bcm2835_property_init, -}; - -static void bcm2835_property_register_types(void) -{ - type_register_static(&bcm2835_property_info); -} - -type_init(bcm2835_property_register_types) |