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added ISA I/O functions in kerneldriver (for coldstart script exec)

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8781 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2004-09-01 20:04:26 +00:00
parent cc90b1798a
commit fc3f2e637d
1 changed files with 75 additions and 1 deletions
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76
src/add-ons/kernel/drivers/graphics/nvidia/driver.c
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@ -4,11 +4,12 @@
Other authors:
Mark Watson;
Rudolf Cornelissen 3/2002-7/2004.
Rudolf Cornelissen 3/2002-8/2004.
*/
/* standard kernel driver stuff */
#include <KernelExport.h>
#include <ISA.h>
#include <PCI.h>
#include <OS.h>
#include <driver_settings.h>
@ -78,6 +79,7 @@ static void probe_devices(void);
static int32 nv_interrupt(void *data);
static DeviceData *pd;
static isa_module_info *isa_bus = NULL;
static pci_module_info *pci_bus = NULL;
static agp_module_info *agp_bus = NULL;
static device_hooks graphics_device_hooks = {
@ -332,6 +334,13 @@ init_hardware(void) {
if (get_module(B_PCI_MODULE_NAME, (module_info **)&pci_bus) != B_OK)
return B_ERROR;
/* choke if we can't find the ISA bus */
if (get_module(B_ISA_MODULE_NAME, (module_info **)&isa_bus) != B_OK)
{
put_module(B_PCI_MODULE_NAME);
return B_ERROR;
}
/* while there are more pci devices */
while ((*pci_bus->get_nth_pci_info)(pci_index, &pcii) == B_NO_ERROR) {
int vendor = 0;
@ -405,6 +414,13 @@ init_driver(void) {
if (get_module(B_PCI_MODULE_NAME, (module_info **)&pci_bus) != B_OK)
return B_ERROR;
/* get a handle for the isa bus */
if (get_module(B_ISA_MODULE_NAME, (module_info **)&isa_bus) != B_OK)
{
put_module(B_PCI_MODULE_NAME);
return B_ERROR;
}
/* get a handle for the agp bus if it exists */
get_module(B_AGP_MODULE_NAME, (module_info **)&agp_bus);
@ -448,6 +464,7 @@ void uninit_driver(void) {
/* put the pci module away */
put_module(B_PCI_MODULE_NAME);
put_module(B_ISA_MODULE_NAME);
/* put the agp module away if it's there */
if (agp_bus) put_module(B_AGP_MODULE_NAME);
@ -960,6 +977,7 @@ static status_t
control_hook (void* dev, uint32 msg, void *buf, size_t len) {
device_info *di = (device_info *)dev;
status_t result = B_DEV_INVALID_IOCTL;
uint32 tmpUlong;
switch (msg) {
/* the only PUBLIC ioctl */
@ -1039,6 +1057,62 @@ control_hook (void* dev, uint32 msg, void *buf, size_t len) {
result = B_OK;
}
} break;
case NV_ISA_OUT: {
nv_in_out_isa *io_isa = (nv_in_out_isa *)buf;
if (io_isa->magic == NV_PRIVATE_DATA_MAGIC) {
pci_info *pcii = &(di->pcii);
/* lock the driver */
AQUIRE_BEN(pd->kernel);
/* enable ISA I/O access */
tmpUlong = get_pci(PCI_command, 2);
tmpUlong |= PCI_command_io;
set_pci(PCI_command, 2, tmpUlong);
if (io_isa->size == 1)
isa_bus->write_io_8(io_isa->adress, (uint8)io_isa->data);
else
isa_bus->write_io_16(io_isa->adress, io_isa->data);
result = B_OK;
/* disable ISA I/O access */
tmpUlong = get_pci(PCI_command, 2);
tmpUlong &= ~PCI_command_io;
set_pci(PCI_command, 2, tmpUlong);
/* end of critical section */
RELEASE_BEN(pd->kernel);
}
} break;
case NV_ISA_IN: {
nv_in_out_isa *io_isa = (nv_in_out_isa *)buf;
if (io_isa->magic == NV_PRIVATE_DATA_MAGIC) {
pci_info *pcii = &(di->pcii);
/* lock the driver */
AQUIRE_BEN(pd->kernel);
/* enable ISA I/O access */
tmpUlong = get_pci(PCI_command, 2);
tmpUlong |= PCI_command_io;
set_pci(PCI_command, 2, tmpUlong);
if (io_isa->size == 1)
io_isa->data = isa_bus->read_io_8(io_isa->adress);
else
io_isa->data = isa_bus->read_io_16(io_isa->adress);
result = B_OK;
/* disable ISA I/O access */
tmpUlong = get_pci(PCI_command, 2);
tmpUlong &= ~PCI_command_io;
set_pci(PCI_command, 2, tmpUlong);
/* end of critical section */
RELEASE_BEN(pd->kernel);
}
} break;
}
return result;
}