diff options
Diffstat (limited to 'src/video_out/libdha/libdha.h')
| -rw-r--r-- | src/video_out/libdha/libdha.h | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/src/video_out/libdha/libdha.h b/src/video_out/libdha/libdha.h index 9984574ca..e37cae515 100644 --- a/src/video_out/libdha/libdha.h +++ b/src/video_out/libdha/libdha.h @@ -35,8 +35,8 @@ typedef struct pciinfo_s { int bus,card,func; /* PCI/AGP bus:card:func */ unsigned short vendor,device; /* Card vendor+device ID */ - unsigned base0,base1,base2,baserom; /* Memory and I/O base addresses */ - unsigned base3,base4,base5; /* Memory and I/O base addresses */ + unsigned long base0,base1,base2,baserom; /* Memory and I/O base addresses */ + unsigned long base3,base4,base5; /* Memory and I/O base addresses */ unsigned char irq,ipin,gnt,lat; /* assigned IRQ parameters for this card */ // unsigned base0_limit, base1_limit, base2_limit, baserom_limit; }pciinfo_t; @@ -93,12 +93,36 @@ extern void bm_close( void ); extern int bm_virt_to_phys( void * virt_addr, unsigned long length, unsigned long * parray ); /* Converts virtual memory addresses into bus address - Works in the same way as bm_virt_to_phys. */ + Works in the same way as bm_virt_to_phys. + WARNING: This function will be die after implementing + bm_alloc_pci_shmem() because we really can't pass + any memory address to card. Example: 64-bit linear address + can't be passed into 32-bit card. Even more - some old + cards can access 24-bit address space only */ extern int bm_virt_to_bus( void * virt_addr, unsigned long length, unsigned long * barray ); -extern void * bm_alloc_pa( unsigned long length ); -extern void bm_free_pa( void * virt_addr, unsigned long length ); + /* NOTE: bm_alloc_pci_shmem() and bm_free_pci_shmem() + are still not implemented! + arguments: + pciinfo_t - specifies pci card for which memory should be shared + bitness - can be 16,24,32,64 specifies addressing possibilities + of the card + length - specifies size of memory which should allocated + op - specifies direction as combination flags TO_CARD,FROM_CARD + Return value - should be tuned + we need to have something like this: + struct pci_shmem + { + void * handler; + void * virt_addr + void * array_of_bus_addr[]; + unsigned long length; + } + NOTE2: After finalizing of these functions bm_virt_to_bus() will be die */ +extern void * bm_alloc_pci_shmem(pciinfo_t *, unsigned mem_bitness, unsigned long length,int op ); +extern void bm_free_pci_shmem(void * pci_shmem); + extern int bm_lock_mem( const void * addr, unsigned long length ); extern int bm_unlock_mem( const void * addr, unsigned long length ); |