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Re: Generic 8250 serial diagnostics.


Convert the PC HAL to use the generic 8250 serial diagnostics.

David Vrabel
-- 
David Vrabel, Design Engineer

Arcom, Clifton Road           Tel: +44 (0)1223 411200 ext. 3233
Cambridge CB1 7EA, UK         Web: http://www.arcom.com/
%status
pending
%patch
Index: ecos-working/packages/hal/i386/pc/current/ChangeLog
===================================================================
--- ecos-working.orig/packages/hal/i386/pc/current/ChangeLog	2005-09-05 16:22:55.000000000 +0100
+++ ecos-working/packages/hal/i386/pc/current/ChangeLog	2005-12-19 15:17:37.000000000 +0000
@@ -1,3 +1,10 @@
+2005-12-19  David Vrabel  <dvrabel@arcom.com>
+
+	* cdl/hal_i386_pc.cdl: Use CYGINT_HAL_COMMON_8250_SERIAL_DIAG.
+
+	* src/hal_diag.c: Use the generic 8250 serial diagnostics. Updates
+	for the changed cyg_hal_plf_screen_init().
+
 2005-06-20  Frank Pagliughi <fpagliughi@mindspring.com>
 
 	* cdl/hal_i386_pc.cdl, include/pkgconf/mlt_i386_pc_grub_hi.*:
Index: ecos-working/packages/hal/i386/pc/current/cdl/hal_i386_pc.cdl
===================================================================
--- ecos-working.orig/packages/hal/i386/pc/current/cdl/hal_i386_pc.cdl	2005-12-19 14:57:34.000000000 +0000
+++ ecos-working/packages/hal/i386/pc/current/cdl/hal_i386_pc.cdl	2005-12-19 14:58:28.000000000 +0000
@@ -64,6 +64,7 @@
     implements    CYGINT_HAL_DEBUG_GDB_STUBS_BREAK
     implements	  CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT
     implements	  CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT_GUARANTEED
+    implements    CYGINT_HAL_COMMON_8250_SERIAL_DIAG
 
     define_proc {
         puts $::cdl_system_header "#define CYGBLD_HAL_TARGET_H   <pkgconf/hal_i386.h>"
Index: ecos-working/packages/hal/i386/pc/current/src/hal_diag.c
===================================================================
--- ecos-working.orig/packages/hal/i386/pc/current/src/hal_diag.c	2005-12-19 14:57:34.000000000 +0000
+++ ecos-working/packages/hal/i386/pc/current/src/hal_diag.c	2005-12-19 14:58:28.000000000 +0000
@@ -70,54 +70,62 @@
 #include <cyg/hal/hal_if.h>             // interface API
 #include <cyg/hal/hal_misc.h>           // Helper functions
 
-#include <cyg/hal/pcmb_serial.h>
+#include <cyg/hal/hal_serial_8250_diag.h>
+#include <cyg/hal/pcmb_screen.h>
 
 //=============================================================================
 
 #if defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG) \
     || defined(CYGPRI_HAL_IMPLEMENTS_IF_SERVICES)
 
-channel_data_t pc_ser_channels[CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS];
+static serial_8250_channel_data_t pc_ser_channels[] = {
+#if (defined(CYGSEM_HAL_I386_PC_DIAG_SCREEN) && CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS >= 2) \
+    || (!defined(CYGSEM_HAL_I386_PC_DIAG_SCREEN) && CYGNUM_HAL_VIRTUAL_VECTORS >= 1)
+    {
+        .freq         = 1843200,
+        .base         = 0x3f8,
+        .msec_timeout = 1000,
+        .isr_vector   = 36,
+    },
+#endif
+#if (defined(CYGSEM_HAL_I386_PC_DIAG_SCREEN) && CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS >= 3) \
+    || (!defined(CYGSEM_HAL_I386_PC_DIAG_SCREEN) && CYGNUM_HAL_VIRTUAL_VECTORS >= 2)
+    {
+        .freq         = 1843200,
+        .base         = 0x2f8,
+        .msec_timeout = 1000,
+        .isr_vector   = 35,
+    },
+#endif
+};
+
+#ifdef CYGSEM_HAL_I386_PC_DIAG_SCREEN
+static pcmb_screen_channel_data_t pc_screen_channel = {
+    .isr_vector   = 33,
+    .msec_timeout = 1000,
+};
+#endif
+
+/* FIXME: Move somewhere common */
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 
 void
 cyg_hal_plf_comms_init(void)
 {
     static int initialized = 0;
-    int num_serial;
 
     if (initialized)
         return;
 
     initialized = 1;
 
-    num_serial = CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS;
-#ifdef CYGSEM_HAL_I386_PC_DIAG_SCREEN
-    --num_serial;
-#endif
-    if (num_serial > 0) {
-	// COM1
-	pc_ser_channels[0].base = 0x3F8;
-	pc_ser_channels[0].msec_timeout = 1000;
-	pc_ser_channels[0].isr_vector = 36;
-    }
-    if (num_serial > 1) {
-	// COM2
-	pc_ser_channels[1].base = 0x2F8;
-	pc_ser_channels[1].msec_timeout = 1000;
-	pc_ser_channels[1].isr_vector = 35;
-    }
-
-    cyg_hal_plf_serial_init();
+    cyg_hal_serial_8250_diag_init(pc_ser_channels, ARRAY_SIZE(pc_ser_channels));
 
 #ifdef CYGSEM_HAL_I386_PC_DIAG_SCREEN
-    
-    pc_ser_channels[num_serial].base = 0x060;
-    pc_ser_channels[num_serial].msec_timeout = 1000;
-    pc_ser_channels[num_serial].isr_vector = 33;
 
-    cyg_hal_plf_screen_init();
+    cyg_hal_plf_screen_init(&pc_screen_channel);
 
-#endif    
+#endif
 }
 
 //=============================================================================
Index: ecos-working/packages/hal/i386/pcmb/current/cdl/hal_i386_pcmb.cdl
===================================================================
--- ecos-working.orig/packages/hal/i386/pcmb/current/cdl/hal_i386_pcmb.cdl	2005-12-19 14:58:28.000000000 +0000
+++ ecos-working/packages/hal/i386/pcmb/current/cdl/hal_i386_pcmb.cdl	2005-12-19 14:58:28.000000000 +0000
@@ -66,7 +66,7 @@
     found on modern motherboards, such as ethernet, sound and
     video devices. These are supported by drivers elsewhere."
 
-    compile      pcmb_misc.c pcmb_serial.c 
+    compile      pcmb_misc.c
 
     implements   CYGINT_HAL_I386_MEM_REAL_REGION_TOP
     
Index: ecos-working/packages/hal/i386/pcmb/current/include/pcmb_screen.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ ecos-working/packages/hal/i386/pcmb/current/include/pcmb_screen.h	2005-12-19 15:18:31.000000000 +0000
@@ -0,0 +1,48 @@
+#ifndef CYGONCE_HAL_PCMB_SCREEN_H
+#define CYGONCE_HAL_PCMB_SCREEN_H
+
+//==========================================================================
+//
+//      pcmb_screen.h
+//
+//      i386/pc Motherboard screen device support
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+//
+// Copyright (C) 2005 eCosCentric Ltd.
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+
+typedef struct {
+    int       isr_vector;
+    cyg_int32 msec_timeout;
+} pcmb_screen_channel_data_t;
+
+#endif /* CYGONCE_HAL_PCMB_SCREEN_H */
Index: ecos-working/packages/hal/i386/pcmb/current/include/pcmb_serial.h
===================================================================
--- ecos-working.orig/packages/hal/i386/pcmb/current/include/pcmb_serial.h	2005-12-19 14:57:34.000000000 +0000
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,96 +0,0 @@
-#ifndef CYGONCE_HAL_PCMB_SERIAL_H
-#define CYGONCE_HAL_PCMB_SERIAL_H
-
-//==========================================================================
-//
-//      pcmb_serial.h
-//
-//      i386/pc Motherboard serial device support
-//
-//==========================================================================
-//####ECOSGPLCOPYRIGHTBEGIN####
-// -------------------------------------------
-// This file is part of eCos, the Embedded Configurable Operating System.
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
-//
-// eCos 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 or (at your option) any later version.
-//
-// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
-// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-//
-// As a special exception, if other files instantiate templates or use macros
-// or inline functions from this file, or you compile this file and link it
-// with other works to produce a work based on this file, this file does not
-// by itself cause the resulting work to be covered by the GNU General Public
-// License. However the source code for this file must still be made available
-// in accordance with section (3) of the GNU General Public License.
-//
-// This exception does not invalidate any other reasons why a work based on
-// this file might be covered by the GNU General Public License.
-//
-// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
-// at http://sources.redhat.com/ecos/ecos-license/
-// -------------------------------------------
-//####ECOSGPLCOPYRIGHTEND####
-//==========================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):    nickg
-// Contributors: 
-// Date:         2001-03-07
-// Purpose:      PC serial support
-// Description:  
-//               
-//               
-//               
-//               
-//               
-//              
-// Usage:
-//               #include <cyg/hal/pcmb_serial.h>
-//               ...
-//
-//####DESCRIPTIONEND####
-//
-//==========================================================================
-
-#include <pkgconf/hal.h>
-#include <pkgconf/hal_i386.h>
-#include <pkgconf/hal_i386_pcmb.h>
-
-#include <cyg/infra/cyg_type.h>
-
-//---------------------------------------------------------------------------
-
-//=============================================================================
-
-typedef struct {
-    cyg_uint16  base;
-    cyg_uint16  valid;
-    cyg_int32   msec_timeout;
-    cyg_int32   isr_vector;
-} channel_data_t;
-
-__externC channel_data_t pc_ser_channels[];
-
-//=============================================================================
-
-__externC void cyg_hal_plf_serial_init(void);
-
-#if CYGINT_HAL_I386_PCMB_SCREEN_SUPPORT > 0
-
-__externC void cyg_hal_plf_screen_init(void);
-__externC void cyg_hal_plf_screen_position(int *x, int *y);
-#endif
-
-//---------------------------------------------------------------------------
-#endif // ifndef CYGONCE_HAL_PCMB_SERIAL_H
-// End of pcmb_serial.h
Index: ecos-working/packages/hal/i386/pcmb/current/src/pcmb_screen.c
===================================================================
--- ecos-working.orig/packages/hal/i386/pcmb/current/src/pcmb_screen.c	2005-12-19 14:57:34.000000000 +0000
+++ ecos-working/packages/hal/i386/pcmb/current/src/pcmb_screen.c	2005-12-19 14:58:28.000000000 +0000
@@ -64,10 +64,9 @@
 #include <cyg/hal/hal_if.h>             // interface API
 #include <cyg/hal/hal_misc.h>
 
-#include <cyg/hal/pcmb_serial.h>
+#include <cyg/hal/pcmb_screen.h>
 
-// Index into pc_ser_channels[] for screen entry.
-#define PCMB_PORT_INDEX (CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS - 1)
+#define SCREEN_CHANNEL_IDX (CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS - 1)
 
 //-----------------------------------------------------------------------------
 // Screen output definitions...
@@ -728,7 +727,7 @@
 cyg_hal_plf_screen_getc_timeout(void* __ch_data, cyg_uint8* ch)
 {
     int delay_count;
-    channel_data_t* chan = (channel_data_t*)__ch_data;
+    pcmb_screen_channel_data_t* chan = (pcmb_screen_channel_data_t*)__ch_data;
     cyg_bool res;
     CYGARC_HAL_SAVE_GP();
 
@@ -750,7 +749,7 @@
 cyg_hal_plf_screen_control(void *__ch_data, __comm_control_cmd_t __func, ...)
 {
     static int irq_state = 0;
-    channel_data_t* chan = (channel_data_t*)__ch_data;
+    pcmb_screen_channel_data_t* chan = (pcmb_screen_channel_data_t*)__ch_data;
     int ret = 0;
     CYGARC_HAL_SAVE_GP();
 
@@ -792,7 +791,7 @@
                        CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
 {
     int res = 0;
-    channel_data_t* chan = (channel_data_t*)__ch_data;
+    pcmb_screen_channel_data_t* chan = (pcmb_screen_channel_data_t*)__ch_data;
     char c;
 
     CYGARC_HAL_SAVE_GP();
@@ -815,23 +814,23 @@
     return res;
 }
 
-void cyg_hal_plf_screen_init(void)
+void cyg_hal_plf_screen_init(pcmb_screen_channel_data_t *chan)
 {
     hal_virtual_comm_table_t* comm;
     int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
 
     // Disable interrupts.
-    HAL_INTERRUPT_MASK(pc_ser_channels[PCMB_PORT_INDEX].isr_vector);
+    HAL_INTERRUPT_MASK(chan->isr_vector);
 
     // Init channels
-    cyg_hal_plf_screen_init_channel(&pc_ser_channels[PCMB_PORT_INDEX]);
+    cyg_hal_plf_screen_init_channel(chan);
 
     // Setup procs in the vector table
 
     // Set channel 2
-    CYGACC_CALL_IF_SET_CONSOLE_COMM(PCMB_PORT_INDEX);
+    CYGACC_CALL_IF_SET_CONSOLE_COMM(SCREEN_CHANNEL_IDX);
     comm = CYGACC_CALL_IF_CONSOLE_PROCS();
-    CYGACC_COMM_IF_CH_DATA_SET(*comm, &pc_ser_channels[PCMB_PORT_INDEX]);
+    CYGACC_COMM_IF_CH_DATA_SET(*comm, chan);
     CYGACC_COMM_IF_WRITE_SET(*comm, cyg_hal_plf_screen_write);
     CYGACC_COMM_IF_READ_SET(*comm, cyg_hal_plf_screen_read);
     CYGACC_COMM_IF_PUTC_SET(*comm, cyg_hal_plf_screen_putc);
Index: ecos-working/packages/hal/i386/pcmb/current/src/pcmb_serial.c
===================================================================
--- ecos-working.orig/packages/hal/i386/pcmb/current/src/pcmb_serial.c	2005-12-19 14:57:34.000000000 +0000
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,404 +0,0 @@
-//=============================================================================
-//
-//      pcmb_serial.c
-//
-//      HAL diagnostic output code
-//
-//=============================================================================
-//####ECOSGPLCOPYRIGHTBEGIN####
-// -------------------------------------------
-// This file is part of eCos, the Embedded Configurable Operating System.
-// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
-//
-// eCos 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 or (at your option) any later version.
-//
-// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
-// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-//
-// As a special exception, if other files instantiate templates or use macros
-// or inline functions from this file, or you compile this file and link it
-// with other works to produce a work based on this file, this file does not
-// by itself cause the resulting work to be covered by the GNU General Public
-// License. However the source code for this file must still be made available
-// in accordance with section (3) of the GNU General Public License.
-//
-// This exception does not invalidate any other reasons why a work based on
-// this file might be covered by the GNU General Public License.
-//
-// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
-// at http://sources.redhat.com/ecos/ecos-license/
-// -------------------------------------------
-//####ECOSGPLCOPYRIGHTEND####
-//=============================================================================
-//#####DESCRIPTIONBEGIN####
-//
-// Author(s):   proven
-// Contributors:proven
-// Date:        1998-10-05
-// Purpose:     HAL diagnostic output
-// Description: Implementations of HAL diagnostic output support.
-//
-//####DESCRIPTIONEND####
-//
-//=============================================================================
-
-#include <pkgconf/hal.h>
-
-#include <cyg/infra/cyg_type.h>         // base types
-
-#include <cyg/hal/hal_arch.h>           // basic machine info
-#include <cyg/hal/hal_intr.h>           // interrupt macros
-#include <cyg/hal/hal_io.h>             // IO macros
-#include <cyg/hal/drv_api.h>
-#include <cyg/hal/hal_if.h>             // interface API
-#include <cyg/hal/hal_misc.h>
-
-#include <cyg/hal/pcmb_serial.h>
-
-
-/*---------------------------------------------------------------------------*/
-/* From serial_16550.h */
-#if CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD==9600
-#define CYG_DEVICE_SERIAL_BAUD_MSB        0x00
-#define CYG_DEVICE_SERIAL_BAUD_LSB        0x0C
-#endif
-#if CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD==19200
-#define CYG_DEVICE_SERIAL_BAUD_MSB        0x00
-#define CYG_DEVICE_SERIAL_BAUD_LSB        0x06
-#endif
-#if CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD==38400
-#define CYG_DEVICE_SERIAL_BAUD_MSB        0x00
-#define CYG_DEVICE_SERIAL_BAUD_LSB        0x03
-#endif
-#if CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD==57600
-#define CYG_DEVICE_SERIAL_BAUD_MSB        0x00
-#define CYG_DEVICE_SERIAL_BAUD_LSB        0x02
-#endif
-#if CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD==115200
-#define CYG_DEVICE_SERIAL_BAUD_MSB        0x00
-#define CYG_DEVICE_SERIAL_BAUD_LSB        0x01
-#endif
-
-#ifndef CYG_DEVICE_SERIAL_BAUD_MSB
-#error Missing/incorrect serial baud rate defined - CDL error?
-#endif
-
-// Define the serial registers.
-#define CYG_DEV_RBR 0x00   // receiver buffer register, read, dlab = 0
-#define CYG_DEV_THR 0x00   // transmitter holding register, write, dlab = 0
-#define CYG_DEV_DLL 0x00   // divisor latch (LS), read/write, dlab = 1
-#define CYG_DEV_IER 0x01   // interrupt enable register, read/write, dlab = 0
-#define CYG_DEV_DLM 0x01   // divisor latch (MS), read/write, dlab = 1
-#define CYG_DEV_IIR 0x02   // interrupt identification register, read, dlab = 0
-#define CYG_DEV_FCR 0x02   // fifo control register, write, dlab = 0
-#define CYG_DEV_LCR 0x03   // line control register, read/write
-#define CYG_DEV_MCR 0x04   // modem control register, read/write
-#define CYG_DEV_LSR 0x05   // line status register, read
-#define CYG_DEV_MSR 0x06   // modem status register, read
-
-// Interrupt Enable Register
-#define SIO_IER_RCV 0x01
-#define SIO_IER_XMT 0x02
-#define SIO_IER_LS  0x04
-#define SIO_IER_MS  0x08
-
-// The line status register bits.
-#define SIO_LSR_DR      0x01            // data ready
-#define SIO_LSR_OE      0x02            // overrun error
-#define SIO_LSR_PE      0x04            // parity error
-#define SIO_LSR_FE      0x08            // framing error
-#define SIO_LSR_BI      0x10            // break interrupt
-#define SIO_LSR_THRE    0x20            // transmitter holding register empty
-#define SIO_LSR_TEMT    0x40            // transmitter register empty
-#define SIO_LSR_ERR     0x80            // any error condition
-
-// The modem status register bits.
-#define SIO_MSR_DCTS  0x01              // delta clear to send
-#define SIO_MSR_DDSR  0x02              // delta data set ready
-#define SIO_MSR_TERI  0x04              // trailing edge ring indicator
-#define SIO_MSR_DDCD  0x08              // delta data carrier detect
-#define SIO_MSR_CTS   0x10              // clear to send
-#define SIO_MSR_DSR   0x20              // data set ready
-#define SIO_MSR_RI    0x40              // ring indicator
-#define SIO_MSR_DCD   0x80              // data carrier detect
-
-// The line control register bits.
-#define SIO_LCR_WLS0   0x01             // word length select bit 0
-#define SIO_LCR_WLS1   0x02             // word length select bit 1
-#define SIO_LCR_STB    0x04             // number of stop bits
-#define SIO_LCR_PEN    0x08             // parity enable
-#define SIO_LCR_EPS    0x10             // even parity select
-#define SIO_LCR_SP     0x20             // stick parity
-#define SIO_LCR_SB     0x40             // set break
-#define SIO_LCR_DLAB   0x80             // divisor latch access bit
-
-// Modem Control Register
-#define SIO_MCR_DTR 0x01
-#define SIO_MCR_RTS 0x02
-#define SIO_MCR_INT 0x08   // Enable interrupts
-
-//=============================================================================
-// Basic channel functions
-
-static void
-cyg_hal_plf_serial_init_channel(void* __ch_data)
-{
-    cyg_uint16 base = ((channel_data_t*)__ch_data)->base;
-    cyg_uint8 lsr;
-    
-    HAL_WRITE_UINT8(base+CYG_DEV_IER, 0);	
-    HAL_WRITE_UINT8(base+CYG_DEV_IER, 0);
-    HAL_WRITE_UINT8(base+CYG_DEV_MCR, 0);    
-    	
-    HAL_WRITE_UINT8(base+CYG_DEV_LCR, SIO_LCR_DLAB);
-    HAL_WRITE_UINT8(base+CYG_DEV_DLL, CYG_DEVICE_SERIAL_BAUD_LSB);
-    HAL_WRITE_UINT8(base+CYG_DEV_DLM, CYG_DEVICE_SERIAL_BAUD_MSB);
-    // 8-1-no parity.
-    HAL_WRITE_UINT8(base+CYG_DEV_LCR, SIO_LCR_WLS0 | SIO_LCR_WLS1);
-
-    // Test whether the channel is valid or not. If the status
-    // register reads back all ones, its a fair bet that it is not
-    // actually there!
-    HAL_READ_UINT8(base+CYG_DEV_LSR, lsr);
-    ((channel_data_t*)__ch_data)->valid = (lsr != 0xFF);
-    
-    HAL_WRITE_UINT8(base+CYG_DEV_FCR, 0x07);  // Enable & clear FIFO
-}
-
-//-----------------------------------------------------------------------------
-
-void
-cyg_hal_plf_serial_putc(void *__ch_data, char c)
-{
-    cyg_uint16 base = ((channel_data_t*)__ch_data)->base;
-    cyg_uint8 lsr;
-
-    if( !((channel_data_t*)__ch_data)->valid )
-            return;
-    
-    CYGARC_HAL_SAVE_GP();
-    do {
-        HAL_READ_UINT8(base+CYG_DEV_LSR, lsr);
-    } while ((lsr & SIO_LSR_THRE) == 0);
-
-    HAL_WRITE_UINT8(base+CYG_DEV_THR, c);
-
-    CYGARC_HAL_RESTORE_GP();
-}
-
-//-----------------------------------------------------------------------------
-
-static cyg_bool
-cyg_hal_plf_serial_getc_nonblock(void* __ch_data, cyg_uint8* ch)
-{
-    cyg_uint16 base = ((channel_data_t*)__ch_data)->base;
-    cyg_uint8 lsr;
-
-    if( !((channel_data_t*)__ch_data)->valid )
-            return false;
-    
-    HAL_READ_UINT8(base+CYG_DEV_LSR, lsr);
-    if ((lsr & SIO_LSR_DR) == 0)
-        return false;
-
-    HAL_READ_UINT8(base+CYG_DEV_RBR, *ch);
-
-    return true;
-}
-
-//-----------------------------------------------------------------------------
-
-cyg_uint8
-cyg_hal_plf_serial_getc(void* __ch_data)
-{
-    cyg_uint8 ch;
-
-    if( !((channel_data_t*)__ch_data)->valid )
-            return '\n';
-    
-    CYGARC_HAL_SAVE_GP();
-
-    while(!cyg_hal_plf_serial_getc_nonblock(__ch_data, &ch));
-
-    CYGARC_HAL_RESTORE_GP();
-
-    return ch;
-}
-
-//=============================================================================
-// Call IF support
-
-#if defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG) \
-    || defined(CYGPRI_HAL_IMPLEMENTS_IF_SERVICES)
-
-static void
-cyg_hal_plf_serial_write(void* __ch_data, const cyg_uint8* __buf, 
-                         cyg_uint32 __len)
-{
-    CYGARC_HAL_SAVE_GP();
-
-    while(__len-- > 0)
-        cyg_hal_plf_serial_putc(__ch_data, *__buf++);
-
-    CYGARC_HAL_RESTORE_GP();
-}
-
-static void
-cyg_hal_plf_serial_read(void* __ch_data, cyg_uint8* __buf, cyg_uint32 __len)
-{
-    CYGARC_HAL_SAVE_GP();
-
-    while(__len-- > 0)
-        *__buf++ = cyg_hal_plf_serial_getc(__ch_data);
-
-    CYGARC_HAL_RESTORE_GP();
-}
-
-static cyg_bool
-cyg_hal_plf_serial_getc_timeout(void* __ch_data, cyg_uint8* ch)
-{
-    int delay_count;
-    channel_data_t* chan = (channel_data_t*)__ch_data;
-    cyg_bool res;
-    CYGARC_HAL_SAVE_GP();
-
-    delay_count = chan->msec_timeout * 10; // delay in .1 ms steps
-
-    for(;;) {
-        res = cyg_hal_plf_serial_getc_nonblock(__ch_data, ch);
-        if (res || 0 == delay_count--)
-            break;
-        
-        CYGACC_CALL_IF_DELAY_US(100);
-    }
-
-    CYGARC_HAL_RESTORE_GP();
-    return res;
-}
-
-
-static int
-cyg_hal_plf_serial_control(void *__ch_data, __comm_control_cmd_t __func, ...)
-{
-    static int irq_state = 0;
-    channel_data_t* chan = (channel_data_t*)__ch_data;
-    int ret = 0;
-    CYGARC_HAL_SAVE_GP();
-
-    switch (__func) {
-    case __COMMCTL_IRQ_ENABLE:
-        irq_state = 1;
-
-        HAL_WRITE_UINT8(chan->base+CYG_DEV_IER, SIO_IER_RCV);
-        HAL_WRITE_UINT8(chan->base+CYG_DEV_MCR, SIO_MCR_INT|SIO_MCR_DTR|SIO_MCR_RTS);
-
-        HAL_INTERRUPT_UNMASK(chan->isr_vector);
-        break;
-    case __COMMCTL_IRQ_DISABLE:
-        ret = irq_state;
-        irq_state = 0;
-
-        HAL_WRITE_UINT8(chan->base+CYG_DEV_IER, 0);
-
-        HAL_INTERRUPT_MASK(chan->isr_vector);
-        break;
-    case __COMMCTL_DBG_ISR_VECTOR:
-        ret = chan->isr_vector;
-        break;
-    case __COMMCTL_SET_TIMEOUT:
-    {
-        va_list ap;
-
-        va_start(ap, __func);
-
-        ret = chan->msec_timeout;
-        chan->msec_timeout = va_arg(ap, cyg_uint32);
-
-        va_end(ap);
-    }        
-    default:
-        break;
-    }
-
-    
-    CYGARC_HAL_RESTORE_GP();
-    return ret;
-}
-
-static int
-cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc, 
-                       CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
-{
-    int res = 0;
-    channel_data_t* chan = (channel_data_t*)__ch_data;
-    char c;
-    cyg_uint8 lsr;
-    CYGARC_HAL_SAVE_GP();
-
-    cyg_drv_interrupt_acknowledge(chan->isr_vector);
-
-    *__ctrlc = 0;
-    HAL_READ_UINT8(chan->base+CYG_DEV_LSR, lsr);
-    if ( (lsr & SIO_LSR_DR) != 0 ) {
-
-        HAL_READ_UINT8(chan->base+CYG_DEV_RBR, c);
-        if( cyg_hal_is_break( &c , 1 ) )
-            *__ctrlc = 1;
-
-    }
-
-    res = CYG_ISR_HANDLED;
-    
-    CYGARC_HAL_RESTORE_GP();
-    return res;
-}
-
-void cyg_hal_plf_serial_init(void)
-{
-    hal_virtual_comm_table_t* comm;
-    int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
-    int i, num_serial = CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS;
-
-#ifdef CYGSEM_HAL_I386_PC_DIAG_SCREEN
-    --num_serial;
-#endif
-
-    for (i = 0; i < num_serial; i++) {
-	// Disable interrupts.
-	HAL_INTERRUPT_MASK(pc_ser_channels[i].isr_vector);
-
-	// Init
-	cyg_hal_plf_serial_init_channel(&pc_ser_channels[i]);
-
-	// Setup procs in the vector table
-
-	// Set channel 0
-	CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
-	comm = CYGACC_CALL_IF_CONSOLE_PROCS();
-	CYGACC_COMM_IF_CH_DATA_SET(*comm, &pc_ser_channels[i]);
-	CYGACC_COMM_IF_WRITE_SET(*comm, cyg_hal_plf_serial_write);
-	CYGACC_COMM_IF_READ_SET(*comm, cyg_hal_plf_serial_read);
-	CYGACC_COMM_IF_PUTC_SET(*comm, cyg_hal_plf_serial_putc);
-	CYGACC_COMM_IF_GETC_SET(*comm, cyg_hal_plf_serial_getc);
-	CYGACC_COMM_IF_CONTROL_SET(*comm, cyg_hal_plf_serial_control);
-	CYGACC_COMM_IF_DBG_ISR_SET(*comm, cyg_hal_plf_serial_isr);
-	CYGACC_COMM_IF_GETC_TIMEOUT_SET(*comm, cyg_hal_plf_serial_getc_timeout);
-    }
-    
-    // Restore original console
-    CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
-}
-
-#endif  //defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG)
-	//  || defined(CYGPRI_HAL_IMPLEMENTS_IF_SERVICES)
-
-//-----------------------------------------------------------------------------
-// End of pcmb_serial.c
Index: ecos-working/packages/hal/i386/pcmb/current/ChangeLog
===================================================================
--- ecos-working.orig/packages/hal/i386/pcmb/current/ChangeLog	2005-05-04 10:33:29.000000000 +0100
+++ ecos-working/packages/hal/i386/pcmb/current/ChangeLog	2005-12-19 15:21:32.000000000 +0000
@@ -1,3 +1,16 @@
+2005-12-19  David Vrabel <dvrabel@arcom.com>
+
+	* include/pcmb_screen.h: New. Adds a pcmb_screen_channel_data_t
+	type to store details for the screen diagnostic's channel.
+
+	* src/pcmb_screen.c: channel_data_t -> pcmb_screen_channel_data_t,
+	PCMB_PORT_INDEX -> SCREEN_CHANNEL_IDX.
+	(cyg_hal_plf_screen_init): Add 'chan' parameter.
+
+	* cdl/hal_i386_pcmb.cdl, include/pcmb_serial.h, src/pcmb_serial.c:
+	Remove pcmb_serial.c -- it's been superceeded by the generic 8250
+	serial diagnostics.
+
 2005-04-27  David Vrabel <dvrabel@arcom.com>
 
 	* cdl/hal_i386_pcmb.cdl (CYGPKG_HAL_I386_PCMB_MEMSIZE): Moved this

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