DeforaOS/uKernel
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Code cleanup

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This commit is contained in:
Pierre Pronchery 2018-07-27 03:20:58 +02:00
parent 2927b26d74
commit 447dcd6494
1 changed files with 7 additions and 5 deletions
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12
src/drivers/bus/vga.c
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@ -18,6 +18,7 @@ typedef struct _ukBus VGABus;
typedef struct _ukBusData
{
ukBus * parent;
ukBusAddress base;
} VGABusData;
@ -68,6 +69,7 @@ static VGABus * _vga_bus_init(ukBus * parent)
if((data = malloc(sizeof(*data))) == NULL)
return NULL;
data->parent = parent;
data->base = 0x3d4;
vga_bus.data = data;
return &vga_bus;
}
@ -86,8 +88,9 @@ static int _vga_bus_read8(VGABus * bus, ukBusAddress address, uint8_t * value)
int ret;
ukBus * parent = bus->data->parent;
ret = (parent->write8(parent, 0x3d4, address) == 0
&& parent->read8(parent, 0x3d5, value) == 0) ? 0 : -1;
ret = (parent->write8(parent, bus->data->base, address) == 0
&& parent->read8(parent, bus->data->base + 1,
value) == 0) ? 0 : -1;
return ret;
}
@ -122,10 +125,9 @@ static int _vga_bus_write8(VGABus * bus, ukBusAddress address, uint8_t value)
int ret;
VGABusData * data = bus->data;
ret = (data->parent->write8(data->parent, 0x3d4,
address) == 0
ret = (data->parent->write8(data->parent, bus->data->base, address) == 0
&& data->parent->write8(data->parent,
0x3d5, value) == 0) ? 0 : -1;
bus->data->base + 1, value) == 0) ? 0 : -1;
return ret;
}