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author | Andrew Cagney <cagney@redhat.com> | 1998-05-25 07:08:48 +0000 |
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committer | Andrew Cagney <cagney@redhat.com> | 1998-05-25 07:08:48 +0000 |
commit | 2f06c437e28ea3bfab27cc9b9b11dd235397a938 (patch) | |
tree | b930b8f8afb52ab1b9d775a084a67cb50d10bc71 /sim/common/hw-base.h | |
parent | f67574471894a2e1ebfc9ba7a5b154b9735da2e9 (diff) | |
download | gdb-2f06c437e28ea3bfab27cc9b9b11dd235397a938.zip gdb-2f06c437e28ea3bfab27cc9b9b11dd235397a938.tar.gz gdb-2f06c437e28ea3bfab27cc9b9b11dd235397a938.tar.bz2 |
Clean up create/delete of hw-ports
Diffstat (limited to 'sim/common/hw-base.h')
-rw-r--r-- | sim/common/hw-base.h | 49 |
1 files changed, 32 insertions, 17 deletions
diff --git a/sim/common/hw-base.h b/sim/common/hw-base.h index ee787dd..27702c8 100644 --- a/sim/common/hw-base.h +++ b/sim/common/hw-base.h @@ -42,7 +42,7 @@ struct hw_device_descriptor { /* Create a primative device */ struct hw *hw_create -(SIM_DESC sd, +(struct sim_state *sd, struct hw *parent, const char *family, const char *name, @@ -106,23 +106,38 @@ typedef void (hw_delete_callback) ((hw)->base_of_hw->to_delete = (method)) -struct hw_port_descriptor { - const char *name; - int number; - int nr_ports; - port_direction direction; +/* Helper functions to make the implementation of a device easier */ + +/* Go through the devices reg properties and look for those specifying + an address to attach various registers to */ + +void do_hw_attach_regs (struct hw *me); + +/* Perform a polling read on FD returning either the number of bytes + or a hw_io status code that indicates the reason for the read + failure */ + +enum { + HW_IO_EOF = -1, HW_IO_NOT_READY = -2, /* See: IEEE 1275 */ }; -typedef void (hw_port_event_callback) - (struct hw *me, - int my_port, - struct hw *source, - int source_port, - int level, - sim_cpu *processor, - sim_cia cia); - -extern void set_hw_ports (struct hw *hw, const struct hw_port_descriptor ports[]); -extern void set_hw_port_event (struct hw *hw, hw_port_event_callback *to_port_event); +typedef int (do_hw_poll_read_method) + (SIM_DESC sd, int, char *, int); + +int do_hw_poll_read +(struct hw *me, + do_hw_poll_read_method *read, + int sim_io_fd, + void *buf, + unsigned size_of_buf); + + +/* PORTS */ + +extern void create_hw_port_data +(struct hw *hw); +extern void delete_hw_port_data +(struct hw *hw); + #endif |