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qemu-patch-raspberry4/hw/isa/pc87312.c
Marc-André Lureau b4948be93e char: remove init callback 
The CharDriverState.init() callback is no longer set since commit
a61ae7f88c and thus unused. The only user, the malta FGPA display has
been converted to use an event "opened" callback instead.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-10-24 15:27:20 +02:00

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/*
* QEMU National Semiconductor PC87312 (Super I/O)
*
* Copyright (c) 2010-2012 Herve Poussineau
* Copyright (c) 2011-2012 Andreas Färber
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "hw/isa/pc87312.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "sysemu/sysemu.h"
#include "sysemu/char.h"
#include "trace.h"
#define REG_FER 0
#define REG_FAR 1
#define REG_PTR 2
#define FER_PARALLEL_EN 0x01
#define FER_UART1_EN 0x02
#define FER_UART2_EN 0x04
#define FER_FDC_EN 0x08
#define FER_FDC_4 0x10
#define FER_FDC_ADDR 0x20
#define FER_IDE_EN 0x40
#define FER_IDE_ADDR 0x80
#define FAR_PARALLEL_ADDR 0x03
#define FAR_UART1_ADDR 0x0C
#define FAR_UART2_ADDR 0x30
#define FAR_UART_3_4 0xC0
#define PTR_POWER_DOWN 0x01
#define PTR_CLOCK_DOWN 0x02
#define PTR_PWDN 0x04
#define PTR_IRQ_5_7 0x08
#define PTR_UART1_TEST 0x10
#define PTR_UART2_TEST 0x20
#define PTR_LOCK_CONF 0x40
#define PTR_EPP_MODE 0x80
/* Parallel port */
static inline bool is_parallel_enabled(PC87312State *s)
{
return s->regs[REG_FER] & FER_PARALLEL_EN;
}
static const uint32_t parallel_base[] = { 0x378, 0x3bc, 0x278, 0x00 };
static inline uint32_t get_parallel_iobase(PC87312State *s)
{
return parallel_base[s->regs[REG_FAR] & FAR_PARALLEL_ADDR];
}
static const uint32_t parallel_irq[] = { 5, 7, 5, 0 };
static inline uint32_t get_parallel_irq(PC87312State *s)
{
int idx;
idx = (s->regs[REG_FAR] & FAR_PARALLEL_ADDR);
if (idx == 0) {
return (s->regs[REG_PTR] & PTR_IRQ_5_7) ? 7 : 5;
} else {
return parallel_irq[idx];
}
}
/* UARTs */
static const uint32_t uart_base[2][4] = {
{ 0x3e8, 0x338, 0x2e8, 0x220 },
{ 0x2e8, 0x238, 0x2e0, 0x228 }
};
static inline uint32_t get_uart_iobase(PC87312State *s, int i)
{
int idx;
idx = (s->regs[REG_FAR] >> (2 * i + 2)) & 0x3;
if (idx == 0) {
return 0x3f8;
} else if (idx == 1) {
return 0x2f8;
} else {
return uart_base[idx & 1][(s->regs[REG_FAR] & FAR_UART_3_4) >> 6];
}
}
static inline uint32_t get_uart_irq(PC87312State *s, int i)
{
int idx;
idx = (s->regs[REG_FAR] >> (2 * i + 2)) & 0x3;
return (idx & 1) ? 3 : 4;
}
static inline bool is_uart_enabled(PC87312State *s, int i)
{
return s->regs[REG_FER] & (FER_UART1_EN << i);
}
/* Floppy controller */
static inline bool is_fdc_enabled(PC87312State *s)
{
return s->regs[REG_FER] & FER_FDC_EN;
}
static inline uint32_t get_fdc_iobase(PC87312State *s)
{
return (s->regs[REG_FER] & FER_FDC_ADDR) ? 0x370 : 0x3f0;
}
/* IDE controller */
static inline bool is_ide_enabled(PC87312State *s)
{
return s->regs[REG_FER] & FER_IDE_EN;
}
static inline uint32_t get_ide_iobase(PC87312State *s)
{
return (s->regs[REG_FER] & FER_IDE_ADDR) ? 0x170 : 0x1f0;
}
static void reconfigure_devices(PC87312State *s)
{
error_report("pc87312: unsupported device reconfiguration (%02x %02x %02x)",
s->regs[REG_FER], s->regs[REG_FAR], s->regs[REG_PTR]);
}
static void pc87312_soft_reset(PC87312State *s)
{
static const uint8_t fer_init[] = {
0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4b, 0x4b,
0x4b, 0x4b, 0x4b, 0x4b, 0x0f, 0x0f, 0x0f, 0x0f,
0x49, 0x49, 0x49, 0x49, 0x07, 0x07, 0x07, 0x07,
0x47, 0x47, 0x47, 0x47, 0x47, 0x47, 0x08, 0x00,
};
static const uint8_t far_init[] = {
0x10, 0x11, 0x11, 0x39, 0x24, 0x38, 0x00, 0x01,
0x01, 0x09, 0x08, 0x08, 0x10, 0x11, 0x39, 0x24,
0x00, 0x01, 0x01, 0x00, 0x10, 0x11, 0x39, 0x24,
0x10, 0x11, 0x11, 0x39, 0x24, 0x38, 0x10, 0x10,
};
static const uint8_t ptr_init[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
};
s->read_id_step = 0;
s->selected_index = REG_FER;
s->regs[REG_FER] = fer_init[s->config & 0x1f];
s->regs[REG_FAR] = far_init[s->config & 0x1f];
s->regs[REG_PTR] = ptr_init[s->config & 0x1f];
}
static void pc87312_hard_reset(PC87312State *s)
{
pc87312_soft_reset(s);
}
static void pc87312_io_write(void *opaque, hwaddr addr, uint64_t val,
unsigned int size)
{
PC87312State *s = opaque;
trace_pc87312_io_write(addr, val);
if ((addr & 1) == 0) {
/* Index register */
s->read_id_step = 2;
s->selected_index = val;
} else {
/* Data register */
if (s->selected_index < 3) {
s->regs[s->selected_index] = val;
reconfigure_devices(s);
}
}
}
static uint64_t pc87312_io_read(void *opaque, hwaddr addr, unsigned int size)
{
PC87312State *s = opaque;
uint32_t val;
if ((addr & 1) == 0) {
/* Index register */
if (s->read_id_step++ == 0) {
val = 0x88;
} else if (s->read_id_step++ == 1) {
val = 0;
} else {
val = s->selected_index;
}
} else {
/* Data register */
if (s->selected_index < 3) {
val = s->regs[s->selected_index];
} else {
/* Invalid selected index */
val = 0;
}
}
trace_pc87312_io_read(addr, val);
return val;
}
static const MemoryRegionOps pc87312_io_ops = {
.read = pc87312_io_read,
.write = pc87312_io_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.valid = {
.min_access_size = 1,
.max_access_size = 1,
},
};
static int pc87312_post_load(void *opaque, int version_id)
{
PC87312State *s = opaque;
reconfigure_devices(s);
return 0;
}
static void pc87312_reset(DeviceState *d)
{
PC87312State *s = PC87312(d);
pc87312_soft_reset(s);
}
static void pc87312_realize(DeviceState *dev, Error **errp)
{
PC87312State *s;
DeviceState *d;
ISADevice *isa;
ISABus *bus;
CharDriverState *chr;
DriveInfo *drive;
char name[5];
int i;
s = PC87312(dev);
isa = ISA_DEVICE(dev);
bus = isa_bus_from_device(isa);
isa_register_ioport(isa, &s->io, s->iobase);
pc87312_hard_reset(s);
if (is_parallel_enabled(s)) {
/* FIXME use a qdev chardev prop instead of parallel_hds[] */
chr = parallel_hds[0];
if (chr == NULL) {
chr = qemu_chr_new("par0", "null");
}
isa = isa_create(bus, "isa-parallel");
d = DEVICE(isa);
qdev_prop_set_uint32(d, "index", 0);
qdev_prop_set_uint32(d, "iobase", get_parallel_iobase(s));
qdev_prop_set_uint32(d, "irq", get_parallel_irq(s));
qdev_prop_set_chr(d, "chardev", chr);
qdev_init_nofail(d);
s->parallel.dev = isa;
trace_pc87312_info_parallel(get_parallel_iobase(s),
get_parallel_irq(s));
}
for (i = 0; i < 2; i++) {
if (is_uart_enabled(s, i)) {
/* FIXME use a qdev chardev prop instead of serial_hds[] */
chr = serial_hds[i];
if (chr == NULL) {
snprintf(name, sizeof(name), "ser%d", i);
chr = qemu_chr_new(name, "null");
}
isa = isa_create(bus, "isa-serial");
d = DEVICE(isa);
qdev_prop_set_uint32(d, "index", i);
qdev_prop_set_uint32(d, "iobase", get_uart_iobase(s, i));
qdev_prop_set_uint32(d, "irq", get_uart_irq(s, i));
qdev_prop_set_chr(d, "chardev", chr);
qdev_init_nofail(d);
s->uart[i].dev = isa;
trace_pc87312_info_serial(i, get_uart_iobase(s, i),
get_uart_irq(s, i));
}
}
if (is_fdc_enabled(s)) {
isa = isa_create(bus, "isa-fdc");
d = DEVICE(isa);
qdev_prop_set_uint32(d, "iobase", get_fdc_iobase(s));
qdev_prop_set_uint32(d, "irq", 6);
/* FIXME use a qdev drive property instead of drive_get() */
drive = drive_get(IF_FLOPPY, 0, 0);
if (drive != NULL) {
qdev_prop_set_drive(d, "driveA", blk_by_legacy_dinfo(drive),
&error_fatal);
}
/* FIXME use a qdev drive property instead of drive_get() */
drive = drive_get(IF_FLOPPY, 0, 1);
if (drive != NULL) {
qdev_prop_set_drive(d, "driveB", blk_by_legacy_dinfo(drive),
&error_fatal);
}
qdev_init_nofail(d);
s->fdc.dev = isa;
trace_pc87312_info_floppy(get_fdc_iobase(s));
}
if (is_ide_enabled(s)) {
isa = isa_create(bus, "isa-ide");
d = DEVICE(isa);
qdev_prop_set_uint32(d, "iobase", get_ide_iobase(s));
qdev_prop_set_uint32(d, "iobase2", get_ide_iobase(s) + 0x206);
qdev_prop_set_uint32(d, "irq", 14);
qdev_init_nofail(d);
s->ide.dev = isa;
trace_pc87312_info_ide(get_ide_iobase(s));
}
}
static void pc87312_initfn(Object *obj)
{
PC87312State *s = PC87312(obj);
memory_region_init_io(&s->io, obj, &pc87312_io_ops, s, "pc87312", 2);
}
static const VMStateDescription vmstate_pc87312 = {
.name = "pc87312",
.version_id = 1,
.minimum_version_id = 1,
.post_load = pc87312_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT8(read_id_step, PC87312State),
VMSTATE_UINT8(selected_index, PC87312State),
VMSTATE_UINT8_ARRAY(regs, PC87312State, 3),
VMSTATE_END_OF_LIST()
}
};
static Property pc87312_properties[] = {
DEFINE_PROP_UINT32("iobase", PC87312State, iobase, 0x398),
DEFINE_PROP_UINT8("config", PC87312State, config, 1),
DEFINE_PROP_END_OF_LIST()
};
static void pc87312_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = pc87312_realize;
dc->reset = pc87312_reset;
dc->vmsd = &vmstate_pc87312;
dc->props = pc87312_properties;
}
static const TypeInfo pc87312_type_info = {
.name = TYPE_PC87312,
.parent = TYPE_ISA_DEVICE,
.instance_size = sizeof(PC87312State),
.instance_init = pc87312_initfn,
.class_init = pc87312_class_init,
};
static void pc87312_register_types(void)
{
type_register_static(&pc87312_type_info);
}
type_init(pc87312_register_types)
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