diff options
author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2022-05-04 10:25:52 +0100 |
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committer | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2022-05-08 18:52:37 +0100 |
commit | 45f569a11666051f98edc678616d135c9feaf506 (patch) | |
tree | a8e5a30bce8e43e8a915b678a4406c950129eafe /hw/hppa/lasi.c | |
parent | 134ba73f32036256e0a89bcd166ddbe1fd19b824 (diff) |
lasi: move from hw/hppa to hw/misc
Move the LASI device implementation from hw/hppa to hw/misc so that it is
located with all the other miscellaneous devices.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20220504092600.10048-43-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Diffstat (limited to 'hw/hppa/lasi.c')
-rw-r--r-- | hw/hppa/lasi.c | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/hw/hppa/lasi.c b/hw/hppa/lasi.c deleted file mode 100644 index 5ef36f3f58..0000000000 --- a/hw/hppa/lasi.c +++ /dev/null @@ -1,275 +0,0 @@ -/* - * HP-PARISC Lasi chipset emulation. - * - * (C) 2019 by Helge Deller <deller@gmx.de> - * - * This work is licensed under the GNU GPL license version 2 or later. - * - * Documentation available at: - * https://parisc.wiki.kernel.org/images-parisc/7/79/Lasi_ers.pdf - */ - -#include "qemu/osdep.h" -#include "qemu/units.h" -#include "qemu/log.h" -#include "qapi/error.h" -#include "trace.h" -#include "hw/irq.h" -#include "sysemu/sysemu.h" -#include "sysemu/runstate.h" -#include "hppa_sys.h" -#include "migration/vmstate.h" -#include "qom/object.h" -#include "lasi.h" - - -static bool lasi_chip_mem_valid(void *opaque, hwaddr addr, - unsigned size, bool is_write, - MemTxAttrs attrs) -{ - bool ret = false; - - switch (addr) { - case LASI_IRR: - case LASI_IMR: - case LASI_IPR: - case LASI_ICR: - case LASI_IAR: - - case LASI_LPT: - case LASI_UART: - case LASI_LAN: - case LASI_RTC: - - case LASI_PCR ... LASI_AMR: - ret = true; - } - - trace_lasi_chip_mem_valid(addr, ret); - return ret; -} - -static MemTxResult lasi_chip_read_with_attrs(void *opaque, hwaddr addr, - uint64_t *data, unsigned size, - MemTxAttrs attrs) -{ - LasiState *s = opaque; - MemTxResult ret = MEMTX_OK; - uint32_t val; - - switch (addr) { - case LASI_IRR: - val = s->irr; - break; - case LASI_IMR: - val = s->imr; - break; - case LASI_IPR: - val = s->ipr; - /* Any read to IPR clears the register. */ - s->ipr = 0; - break; - case LASI_ICR: - val = s->icr & ICR_BUS_ERROR_BIT; /* bus_error */ - break; - case LASI_IAR: - val = s->iar; - break; - - case LASI_LPT: - case LASI_UART: - case LASI_LAN: - val = 0; - break; - case LASI_RTC: - val = time(NULL); - val += s->rtc_ref; - break; - - case LASI_PCR: - case LASI_VER: /* only version 0 existed. */ - case LASI_IORESET: - val = 0; - break; - case LASI_ERRLOG: - val = s->errlog; - break; - case LASI_AMR: - val = s->amr; - break; - - default: - /* Controlled by lasi_chip_mem_valid above. */ - g_assert_not_reached(); - } - - trace_lasi_chip_read(addr, val); - - *data = val; - return ret; -} - -static MemTxResult lasi_chip_write_with_attrs(void *opaque, hwaddr addr, - uint64_t val, unsigned size, - MemTxAttrs attrs) -{ - LasiState *s = opaque; - - trace_lasi_chip_write(addr, val); - - switch (addr) { - case LASI_IRR: - /* read-only. */ - break; - case LASI_IMR: - s->imr = val; - if (((val & LASI_IRQ_BITS) != val) && (val != 0xffffffff)) { - qemu_log_mask(LOG_GUEST_ERROR, - "LASI: tried to set invalid %lx IMR value.\n", - (unsigned long) val); - } - break; - case LASI_IPR: - /* Any write to IPR clears the register. */ - s->ipr = 0; - break; - case LASI_ICR: - s->icr = val; - /* if (val & ICR_TOC_BIT) issue_toc(); */ - break; - case LASI_IAR: - s->iar = val; - break; - - case LASI_LPT: - /* XXX: reset parallel port */ - break; - case LASI_UART: - /* XXX: reset serial port */ - break; - case LASI_LAN: - /* XXX: reset LAN card */ - break; - case LASI_RTC: - s->rtc_ref = val - time(NULL); - break; - - case LASI_PCR: - if (val == 0x02) { /* immediately power off */ - qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); - } - break; - case LASI_ERRLOG: - s->errlog = val; - break; - case LASI_VER: - /* read-only. */ - break; - case LASI_IORESET: - break; /* XXX: TODO: Reset various devices. */ - case LASI_AMR: - s->amr = val; - break; - - default: - /* Controlled by lasi_chip_mem_valid above. */ - g_assert_not_reached(); - } - return MEMTX_OK; -} - -static const MemoryRegionOps lasi_chip_ops = { - .read_with_attrs = lasi_chip_read_with_attrs, - .write_with_attrs = lasi_chip_write_with_attrs, - .endianness = DEVICE_BIG_ENDIAN, - .valid = { - .min_access_size = 1, - .max_access_size = 4, - .accepts = lasi_chip_mem_valid, - }, - .impl = { - .min_access_size = 1, - .max_access_size = 4, - }, -}; - -static const VMStateDescription vmstate_lasi = { - .name = "Lasi", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT32(irr, LasiState), - VMSTATE_UINT32(imr, LasiState), - VMSTATE_UINT32(ipr, LasiState), - VMSTATE_UINT32(icr, LasiState), - VMSTATE_UINT32(iar, LasiState), - VMSTATE_UINT32(errlog, LasiState), - VMSTATE_UINT32(amr, LasiState), - VMSTATE_END_OF_LIST() - } -}; - - -static void lasi_set_irq(void *opaque, int irq, int level) -{ - LasiState *s = opaque; - uint32_t bit = 1u << irq; - - if (level) { - s->ipr |= bit; - if (bit & s->imr) { - uint32_t iar = s->iar; - s->irr |= bit; - if ((s->icr & ICR_BUS_ERROR_BIT) == 0) { - stl_be_phys(&address_space_memory, iar & -32, iar & 31); - } - } - } -} - -static void lasi_reset(DeviceState *dev) -{ - LasiState *s = LASI_CHIP(dev); - - s->iar = 0xFFFB0000 + 3; /* CPU_HPA + 3 */ - - /* Real time clock (RTC), it's only one 32-bit counter @9000 */ - s->rtc = time(NULL); - s->rtc_ref = 0; -} - -static void lasi_init(Object *obj) -{ - LasiState *s = LASI_CHIP(obj); - SysBusDevice *sbd = SYS_BUS_DEVICE(obj); - - memory_region_init_io(&s->this_mem, OBJECT(s), &lasi_chip_ops, - s, "lasi", 0x100000); - - sysbus_init_mmio(sbd, &s->this_mem); - - qdev_init_gpio_in(DEVICE(obj), lasi_set_irq, LASI_IRQS); -} - -static void lasi_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->reset = lasi_reset; - dc->vmsd = &vmstate_lasi; -} - -static const TypeInfo lasi_pcihost_info = { - .name = TYPE_LASI_CHIP, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_init = lasi_init, - .instance_size = sizeof(LasiState), - .class_init = lasi_class_init, -}; - -static void lasi_register_types(void) -{ - type_register_static(&lasi_pcihost_info); -} - -type_init(lasi_register_types) |