diff options
author | Matthias Vogelgesang <matthias.vogelgesang@ipe.fzk.de> | 2011-03-09 17:34:23 +0100 |
---|---|---|
committer | Matthias Vogelgesang <matthias.vogelgesang@ipe.fzk.de> | 2011-03-09 17:34:23 +0100 |
commit | b26046f5a83a3933a99166762de03bf8e7a48d76 (patch) | |
tree | 5f43a328cd43745ff3f2db4d864b2db4b81c35fd /default.c | |
parent | 8a33c993a5771b041b67c365378ac40f76365da7 (diff) | |
parent | 134e2cc87d524bbb63c2e73dc1bb1fd8c0449ae1 (diff) | |
download | pcitool-b26046f5a83a3933a99166762de03bf8e7a48d76.tar.gz pcitool-b26046f5a83a3933a99166762de03bf8e7a48d76.tar.bz2 pcitool-b26046f5a83a3933a99166762de03bf8e7a48d76.tar.xz pcitool-b26046f5a83a3933a99166762de03bf8e7a48d76.zip |
Merge changes
Diffstat (limited to 'default.c')
-rw-r--r-- | default.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/default.c b/default.c new file mode 100644 index 0000000..d03858f --- /dev/null +++ b/default.c @@ -0,0 +1,39 @@ +#include <sys/time.h> +#include <arpa/inet.h> +#include <assert.h> + +#include "tools.h" +#include "default.h" +#include "error.h" + +#define BIT_MASK(bits) ((1l << (bits)) - 1) + +#define default_datacpy(dst, src, access, bank) pcilib_datacpy(dst, src, access, 1, bank->raw_endianess) + +int pcilib_default_read(pcilib_t *ctx, pcilib_register_bank_description_t *bank, pcilib_register_addr_t addr, uint8_t bits, pcilib_register_value_t *value) { + int err; + + char *ptr; + pcilib_register_value_t val = 0; + int access = bank->access / 8; + + ptr = pcilib_resolve_register_address(ctx, bank->read_addr + addr * access); + default_datacpy(&val, ptr, access, bank); + + *value = val&BIT_MASK(bits); + + return 0; +} + + +int pcilib_default_write(pcilib_t *ctx, pcilib_register_bank_description_t *bank, pcilib_register_addr_t addr, uint8_t bits, pcilib_register_value_t value) { + int err; + + char *ptr; + int access = bank->access / 8; + + ptr = pcilib_resolve_register_address(ctx, bank->write_addr + addr * access); + default_datacpy(ptr, &value, access, bank); + + return 0; +} |