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hw/isa/superio: Factor out the serial code from pc87312.c

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Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180308223946.26784-12-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2018-03-08 23:39:32 +01:00 committed by Paolo Bonzini
parent 4c3119a6e3
commit cd9526ab7c
5 changed files with 56 additions and 36 deletions
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41
hw/isa/isa-superio.c
View File

@ -14,6 +14,7 @@
#include "sysemu/sysemu.h"
#include "chardev/char.h"
#include "hw/isa/superio.h"
#include "hw/char/serial.h"
#include "trace.h"
static void isa_superio_realize(DeviceState *dev, Error **errp)
@ -66,6 +67,46 @@ static void isa_superio_realize(DeviceState *dev, Error **errp)
g_free(name);
}
}
/* Serial */
for (i = 0; i < k->serial.count; i++) {
if (i >= ARRAY_SIZE(sio->serial)) {
warn_report("superio: ignoring %td serial controllers",
k->serial.count - ARRAY_SIZE(sio->serial));
break;
}
if (!k->serial.is_enabled || k->serial.is_enabled(sio, i)) {
/* FIXME use a qdev chardev prop instead of serial_hds[] */
chr = serial_hds[i];
if (chr == NULL || chr->be) {
name = g_strdup_printf("discarding-serial%d", i);
chr = qemu_chr_new(name, "null");
} else {
name = g_strdup_printf("serial%d", i);
}
isa = isa_create(bus, TYPE_ISA_SERIAL);
d = DEVICE(isa);
qdev_prop_set_uint32(d, "index", i);
if (k->serial.get_iobase) {
qdev_prop_set_uint32(d, "iobase",
k->serial.get_iobase(sio, i));
}
if (k->serial.get_irq) {
qdev_prop_set_uint32(d, "irq", k->serial.get_irq(sio, i));
}
qdev_prop_set_chr(d, "chardev", chr);
qdev_init_nofail(d);
sio->serial[i] = isa;
trace_superio_create_serial(i,
k->serial.get_iobase ?
k->serial.get_iobase(sio, i) : -1,
k->serial.get_irq ?
k->serial.get_irq(sio, i) : -1);
object_property_add_child(OBJECT(dev), name,
OBJECT(sio->serial[0]), NULL);
g_free(name);
}
}
}
static void isa_superio_class_init(ObjectClass *oc, void *data)

43
hw/isa/pc87312.c
View File

@ -29,8 +29,6 @@
#include "qemu/error-report.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "sysemu/sysemu.h"
#include "chardev/char.h"
#include "trace.h"
@ -100,8 +98,9 @@ static const uint16_t uart_base[2][4] = {
{ 0x2e8, 0x238, 0x2e0, 0x228 }
};
static inline uint16_t get_uart_iobase(PC87312State *s, int i)
static uint16_t get_uart_iobase(ISASuperIODevice *sio, uint8_t i)
{
PC87312State *s = PC87312(sio);
int idx;
idx = (s->regs[REG_FAR] >> (2 * i + 2)) & 0x3;
if (idx == 0) {
@ -113,15 +112,17 @@ static inline uint16_t get_uart_iobase(PC87312State *s, int i)
}
}
static inline unsigned int get_uart_irq(PC87312State *s, int i)
static unsigned int get_uart_irq(ISASuperIODevice *sio, uint8_t i)
{
PC87312State *s = PC87312(sio);
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)
static bool is_uart_enabled(ISASuperIODevice *sio, uint8_t i)
{
PC87312State *s = PC87312(sio);
return s->regs[REG_FER] & (FER_UART1_EN << i);
}
@ -271,11 +272,8 @@ static void pc87312_realize(DeviceState *dev, Error **errp)
DeviceState *d;
ISADevice *isa;
ISABus *bus;
Chardev *chr;
DriveInfo *drive;
Error *local_err = NULL;
char name[5];
int i;
s = PC87312(dev);
isa = ISA_DEVICE(dev);
@ -289,27 +287,6 @@ static void pc87312_realize(DeviceState *dev, Error **errp)
return;
}
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);
@ -380,8 +357,6 @@ static void pc87312_class_init(ObjectClass *klass, void *data)
dc->reset = pc87312_reset;
dc->vmsd = &vmstate_pc87312;
dc->props = pc87312_properties;
/* Reason: Uses serial_hds[0] in realize(), so it can't be used twice */
dc->user_creatable = false;
sc->parallel = (ISASuperIOFuncs){
.count = 1,
@ -389,6 +364,12 @@ static void pc87312_class_init(ObjectClass *klass, void *data)
.get_iobase = get_parallel_iobase,
.get_irq = get_parallel_irq,
};
sc->serial = (ISASuperIOFuncs){
.count = 2,
.is_enabled = is_uart_enabled,
.get_iobase = get_uart_iobase,
.get_irq = get_uart_irq,
};
}
static const TypeInfo pc87312_type_info = {

2
hw/isa/trace-events
View File

@ -2,10 +2,10 @@
# hw/isa/isa-superio.c
superio_create_parallel(int id, uint16_t base, unsigned int irq) "id=%d, base 0x%03x, irq %u"
superio_create_serial(int id, uint16_t base, unsigned int irq) "id=%d, base 0x%03x, irq %u"
# hw/isa/pc87312.c
pc87312_io_read(uint32_t addr, uint32_t val) "read addr=0x%x val=0x%x"
pc87312_io_write(uint32_t addr, uint32_t val) "write addr=0x%x val=0x%x"
pc87312_info_floppy(uint32_t base) "base 0x%x"
pc87312_info_ide(uint32_t base) "base 0x%x"
pc87312_info_serial(int n, uint32_t base, uint32_t irq) "id=%d, base 0x%x, irq %u"

4
include/hw/isa/pc87312.h
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@ -39,10 +39,6 @@ typedef struct PC87312State {
uint16_t iobase;
uint8_t config; /* initial configuration */
struct {
ISADevice *dev;
} uart[2];
struct {
ISADevice *dev;
} fdc;

2
include/hw/isa/superio.h
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@ -28,6 +28,7 @@ typedef struct ISASuperIODevice {
/*< public >*/
ISADevice *parallel[MAX_PARALLEL_PORTS];
ISADevice *serial[MAX_SERIAL_PORTS];
} ISASuperIODevice;
typedef struct ISASuperIOFuncs {
@ -45,6 +46,7 @@ typedef struct ISASuperIOClass {
DeviceRealize parent_realize;
ISASuperIOFuncs parallel;
ISASuperIOFuncs serial;
} ISASuperIOClass;
#endif /* HW_ISA_SUPERIO_H */