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-rw-r--r--sim/mn10300/dv-mn103iop.c555
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diff --git a/sim/mn10300/dv-mn103iop.c b/sim/mn10300/dv-mn103iop.c
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--- a/sim/mn10300/dv-mn103iop.c
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@@ -1,555 +0,0 @@
-/* This file is part of the program GDB, the GNU debugger.
-
- Copyright (C) 1998 Free Software Foundation, Inc.
- Contributed by Cygnus Solutions.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
-
-#include "sim-main.h"
-#include "hw-main.h"
-
-/* DEVICE
-
-
- mn103iop - mn103002 I/O ports 0-3.
-
-
- DESCRIPTION
-
- Implements the mn103002 i/o ports as described in the mn103002 user guide.
-
-
- PROPERTIES
-
- reg = <ioport-addr> <ioport-size> ...
-
-
- BUGS
-
- */
-
-
-/* The I/O ports' registers' address block */
-
-struct mn103iop_block {
- unsigned_word base;
- unsigned_word bound;
-};
-
-
-
-enum io_port_register_types {
- P0OUT,
- P1OUT,
- P2OUT,
- P3OUT,
- P0MD,
- P1MD,
- P2MD,
- P3MD,
- P2SS,
- P4SS,
- P0DIR,
- P1DIR,
- P2DIR,
- P3DIR,
- P0IN,
- P1IN,
- P2IN,
- P3IN,
-};
-
-#define NR_PORTS 4
-
-enum {
- OUTPUT_BLOCK,
- MODE_BLOCK,
- DED_CTRL_BLOCK,
- CTRL_BLOCK,
- PIN_BLOCK,
- NR_BLOCKS
-};
-
-typedef struct _mn10300_ioport {
- unsigned8 output, output_mode, control, pin;
- struct hw_event *event;
-} mn10300_ioport;
-
-
-
-struct mn103iop {
- struct mn103iop_block block[NR_BLOCKS];
- mn10300_ioport port[NR_PORTS];
- unsigned8 p2ss, p4ss;
-};
-
-
-/* Finish off the partially created hw device. Attach our local
- callbacks. Wire up our port names etc */
-
-static hw_io_read_buffer_method mn103iop_io_read_buffer;
-static hw_io_write_buffer_method mn103iop_io_write_buffer;
-
-static void
-attach_mn103iop_regs (struct hw *me,
- struct mn103iop *io_port)
-{
- int i;
- unsigned_word attach_address;
- int attach_space;
- unsigned attach_size;
- reg_property_spec reg;
-
- if (hw_find_property (me, "reg") == NULL)
- hw_abort (me, "Missing \"reg\" property");
-
- for (i=0; i < NR_BLOCKS; ++i )
- {
- if (!hw_find_reg_array_property (me, "reg", i, &reg))
- hw_abort (me, "\"reg\" property must contain five addr/size entries");
- hw_unit_address_to_attach_address (hw_parent (me),
- &reg.address,
- &attach_space,
- &attach_address,
- me);
- io_port->block[i].base = attach_address;
- hw_unit_size_to_attach_size (hw_parent (me),
- &reg.size,
- &attach_size, me);
- io_port->block[i].bound = attach_address + (attach_size - 1);
- hw_attach_address (hw_parent (me),
- 0,
- attach_space, attach_address, attach_size,
- me);
- }
-}
-
-static void
-mn103iop_finish (struct hw *me)
-{
- struct mn103iop *io_port;
- int i;
-
- io_port = HW_ZALLOC (me, struct mn103iop);
- set_hw_data (me, io_port);
- set_hw_io_read_buffer (me, mn103iop_io_read_buffer);
- set_hw_io_write_buffer (me, mn103iop_io_write_buffer);
-
- /* Attach ourself to our parent bus */
- attach_mn103iop_regs (me, io_port);
-
- /* Initialize the i/o port registers. */
- for ( i=0; i<NR_PORTS; ++i )
- {
- io_port->port[i].output = 0;
- io_port->port[i].output_mode = 0;
- io_port->port[i].control = 0;
- io_port->port[i].pin = 0;
- }
- io_port->port[2].output_mode = 0xff;
- io_port->p2ss = 0;
- io_port->p4ss = 0x0f;
-}
-
-
-/* read and write */
-
-static int
-decode_addr (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word address)
-{
- unsigned_word offset;
- offset = address - io_port->block[0].base;
- switch (offset)
- {
- case 0x00: return P0OUT;
- case 0x01: return P1OUT;
- case 0x04: return P2OUT;
- case 0x05: return P3OUT;
- case 0x20: return P0MD;
- case 0x21: return P1MD;
- case 0x24: return P2MD;
- case 0x25: return P3MD;
- case 0x44: return P2SS;
- case 0x48: return P4SS;
- case 0x60: return P0DIR;
- case 0x61: return P1DIR;
- case 0x64: return P2DIR;
- case 0x65: return P3DIR;
- case 0x80: return P0IN;
- case 0x81: return P1IN;
- case 0x84: return P2IN;
- case 0x85: return P3IN;
- default:
- {
- hw_abort (me, "bad address");
- return -1;
- }
- }
-}
-
-
-static void
-read_output_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *dest,
- unsigned nr_bytes)
-{
- if ( nr_bytes == 1 )
- {
- *(unsigned8 *)dest = io_port->port[io_port_reg].output;
- }
- else
- {
- hw_abort (me, "bad read size of %d bytes from P%dOUT.", nr_bytes,
- io_port_reg);
- }
-}
-
-
-static void
-read_output_mode_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *dest,
- unsigned nr_bytes)
-{
- if ( nr_bytes == 1 )
- {
- /* check if there are fields which can't be written and
- take appropriate action depending what bits are set */
- *(unsigned8 *)dest = io_port->port[io_port_reg].output_mode;
- }
- else
- {
- hw_abort (me, "bad read size of %d bytes to P%dMD.", nr_bytes,
- io_port_reg);
- }
-}
-
-
-static void
-read_control_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *dest,
- unsigned nr_bytes)
-{
- if ( nr_bytes == 1 )
- {
- *(unsigned8 *)dest = io_port->port[io_port_reg].control;
- }
- else
- {
- hw_abort (me, "bad read size of %d bytes to P%dDIR.", nr_bytes,
- io_port_reg);
- }
-}
-
-
-static void
-read_pin_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *dest,
- unsigned nr_bytes)
-{
- if ( nr_bytes == 1 )
- {
- *(unsigned8 *)dest = io_port->port[io_port_reg].pin;
- }
- else
- {
- hw_abort (me, "bad read size of %d bytes to P%dIN.", nr_bytes,
- io_port_reg);
- }
-}
-
-
-static void
-read_dedicated_control_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *dest,
- unsigned nr_bytes)
-{
- if ( nr_bytes == 1 )
- {
- /* select on io_port_reg: */
- if ( io_port_reg == P2SS )
- {
- *(unsigned8 *)dest = io_port->p2ss;
- }
- else
- {
- *(unsigned8 *)dest = io_port->p4ss;
- }
- }
- else
- {
- hw_abort (me, "bad read size of %d bytes to PSS.", nr_bytes);
- }
-}
-
-
-static unsigned
-mn103iop_io_read_buffer (struct hw *me,
- void *dest,
- int space,
- unsigned_word base,
- unsigned nr_bytes)
-{
- struct mn103iop *io_port = hw_data (me);
- enum io_port_register_types io_port_reg;
- HW_TRACE ((me, "read 0x%08lx %d", (long) base, (int) nr_bytes));
-
- io_port_reg = decode_addr (me, io_port, base);
- switch (io_port_reg)
- {
- /* Port output registers */
- case P0OUT:
- case P1OUT:
- case P2OUT:
- case P3OUT:
- read_output_reg(me, io_port, io_port_reg-P0OUT, dest, nr_bytes);
- break;
-
- /* Port output mode registers */
- case P0MD:
- case P1MD:
- case P2MD:
- case P3MD:
- read_output_mode_reg(me, io_port, io_port_reg-P0MD, dest, nr_bytes);
- break;
-
- /* Port control registers */
- case P0DIR:
- case P1DIR:
- case P2DIR:
- case P3DIR:
- read_control_reg(me, io_port, io_port_reg-P0DIR, dest, nr_bytes);
- break;
-
- /* Port pin registers */
- case P0IN:
- case P1IN:
- case P2IN:
- read_pin_reg(me, io_port, io_port_reg-P0IN, dest, nr_bytes);
- break;
-
- case P2SS:
- case P4SS:
- read_dedicated_control_reg(me, io_port, io_port_reg, dest, nr_bytes);
- break;
-
- default:
- hw_abort(me, "invalid address");
- }
-
- return nr_bytes;
-}
-
-
-static void
-write_output_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *source,
- unsigned nr_bytes)
-{
- unsigned8 buf = *(unsigned8 *)source;
- if ( nr_bytes == 1 )
- {
- if ( io_port_reg == 3 && (buf & 0xfc) != 0 )
- {
- hw_abort(me, "Cannot write to read-only bits of P3OUT.");
- }
- else
- {
- io_port->port[io_port_reg].output = buf;
- }
- }
- else
- {
- hw_abort (me, "bad read size of %d bytes from P%dOUT.", nr_bytes,
- io_port_reg);
- }
-}
-
-
-static void
-write_output_mode_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *source,
- unsigned nr_bytes)
-{
- unsigned8 buf = *(unsigned8 *)source;
- if ( nr_bytes == 1 )
- {
- /* check if there are fields which can't be written and
- take appropriate action depending what bits are set */
- if ( ( io_port_reg == 3 && (buf & 0xfc) != 0 )
- || ( (io_port_reg == 0 || io_port_reg == 1) && (buf & 0xfe) != 0 ) )
- {
- hw_abort(me, "Cannot write to read-only bits of output mode register.");
- }
- else
- {
- io_port->port[io_port_reg].output_mode = buf;
- }
- }
- else
- {
- hw_abort (me, "bad write size of %d bytes to P%dMD.", nr_bytes,
- io_port_reg);
- }
-}
-
-
-static void
-write_control_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *source,
- unsigned nr_bytes)
-{
- unsigned8 buf = *(unsigned8 *)source;
- if ( nr_bytes == 1 )
- {
- if ( io_port_reg == 3 && (buf & 0xfc) != 0 )
- {
- hw_abort(me, "Cannot write to read-only bits of P3DIR.");
- }
- else
- {
- io_port->port[io_port_reg].control = buf;
- }
- }
- else
- {
- hw_abort (me, "bad write size of %d bytes to P%dDIR.", nr_bytes,
- io_port_reg);
- }
-}
-
-
-static void
-write_dedicated_control_reg (struct hw *me,
- struct mn103iop *io_port,
- unsigned_word io_port_reg,
- const void *source,
- unsigned nr_bytes)
-{
- unsigned8 buf = *(unsigned8 *)source;
- if ( nr_bytes == 1 )
- {
- /* select on io_port_reg: */
- if ( io_port_reg == P2SS )
- {
- if ( (buf && 0xfc) != 0 )
- {
- hw_abort(me, "Cannot write to read-only bits in p2ss.");
- }
- else
- {
- io_port->p2ss = buf;
- }
- }
- else
- {
- if ( (buf && 0xf0) != 0 )
- {
- hw_abort(me, "Cannot write to read-only bits in p4ss.");
- }
- else
- {
- io_port->p4ss = buf;
- }
- }
- }
- else
- {
- hw_abort (me, "bad write size of %d bytes to PSS.", nr_bytes);
- }
-}
-
-
-static unsigned
-mn103iop_io_write_buffer (struct hw *me,
- const void *source,
- int space,
- unsigned_word base,
- unsigned nr_bytes)
-{
- struct mn103iop *io_port = hw_data (me);
- enum io_port_register_types io_port_reg;
- HW_TRACE ((me, "write 0x%08lx %d", (long) base, (int) nr_bytes));
-
- io_port_reg = decode_addr (me, io_port, base);
- switch (io_port_reg)
- {
- /* Port output registers */
- case P0OUT:
- case P1OUT:
- case P2OUT:
- case P3OUT:
- write_output_reg(me, io_port, io_port_reg-P0OUT, source, nr_bytes);
- break;
-
- /* Port output mode registers */
- case P0MD:
- case P1MD:
- case P2MD:
- case P3MD:
- write_output_mode_reg(me, io_port, io_port_reg-P0MD, source, nr_bytes);
- break;
-
- /* Port control registers */
- case P0DIR:
- case P1DIR:
- case P2DIR:
- case P3DIR:
- write_control_reg(me, io_port, io_port_reg-P0DIR, source, nr_bytes);
- break;
-
- /* Port pin registers */
- case P0IN:
- case P1IN:
- case P2IN:
- hw_abort(me, "Cannot write to pin register.");
- break;
-
- case P2SS:
- case P4SS:
- write_dedicated_control_reg(me, io_port, io_port_reg, source, nr_bytes);
- break;
-
- default:
- hw_abort(me, "invalid address");
- }
-
- return nr_bytes;
-}
-
-
-const struct hw_descriptor dv_mn103iop_descriptor[] = {
- { "mn103iop", mn103iop_finish, },
- { NULL },
-};
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