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FLASH - test case


-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates
Index: io/flash/current/ChangeLog
===================================================================
RCS file: /misc/cvsfiles/ecos/packages/io/flash/current/ChangeLog,v
retrieving revision 1.38
diff -u -5 -p -r1.38 ChangeLog
--- io/flash/current/ChangeLog	20 Jun 2004 12:46:16 -0000	1.38
+++ io/flash/current/ChangeLog	24 Aug 2004 13:27:26 -0000
@@ -1,5 +1,10 @@
+2004-08-24  Gary Thomas  <gary@mlbassoc.com>
+
+	* cdl/io_flash.cdl:
+	* tests/flash1.c: Add simple test of FLASH driver.
+
 2004-06-20  Andrew Lunn  <andrew.lunn@ascom.ch>
 
 	* src/flash.c (flash_read): Don't check if the flash is write 
   	  protected before performing a read.
         * doc/flash.sgml
Index: io/flash/current/cdl/io_flash.cdl
===================================================================
RCS file: /misc/cvsfiles/ecos/packages/io/flash/current/cdl/io_flash.cdl,v
retrieving revision 1.17
diff -u -5 -p -r1.17 io_flash.cdl
--- io/flash/current/cdl/io_flash.cdl	20 Jun 2004 12:20:53 -0000	1.17
+++ io/flash/current/cdl/io_flash.cdl	24 Aug 2004 13:09:51 -0000
@@ -7,11 +7,11 @@
 # ====================================================================
 #####ECOSGPLCOPYRIGHTBEGIN####
 ## -------------------------------------------
 ## This file is part of eCos, the Embedded Configurable Operating System.
 ## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
-## Copyright (C) 2003 Gary Thomas
+## Copyright (C) 2003, 2004 Gary Thomas
 ##
 ## 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.
 ##
@@ -191,8 +191,68 @@ cdl_package CYGPKG_IO_FLASH {
 					display       "Name of FIS entry"
 					flavor        data
 					default_value { "\"jffs2\"" }	
 				}
             }        
+        }
+    }
+
+    cdl_component CYGPKG_IO_FLASH_OPTIONS {
+        display "Flash device driver build options"
+        flavor  none
+        description   "
+	    Package specific build options including control over
+	    compiler flags used only in building this package,
+	    and details of which tests are built."
+
+
+        cdl_option CYGPKG_IO_FLASH_CFLAGS_ADD {
+            display "Additional compiler flags"
+            flavor  data
+            no_define
+            default_value { "" }
+            description   "
+                This option modifies the set of compiler flags for
+                building the flash device drivers. These flags are used in addition
+                to the set of global flags."
+        }
+
+        cdl_option CYGPKG_IO_FLASH_CFLAGS_REMOVE {
+            display "Suppressed compiler flags"
+            flavor  data
+            no_define
+            default_value { "" }
+            description   "
+                This option modifies the set of compiler flags for
+                building the flash device drivers. These flags are removed from
+                the set of global flags if present."
+        }
+
+        cdl_component CYGPKG_IO_FLASH_TESTS {
+            display "Flash device driver tests"
+            flavor  data
+            no_define
+            calculated { "tests/flash1" }
+            description   "
+                This option specifies the set of tests for the flash device drivers."
+
+            cdl_option CYGNUM_IO_FLASH_TEST_OFFSET {
+                display         "Start offset from flash base"
+                flavor          data
+                default_value   0x100000
+                description     "
+                    This gives the offset from the base of flash where tests
+                    can be run.  It is important to set this correctly, as an
+                    incorrect value could allow the tests to write over critical
+                    portions of the FLASH device and possibly render the target
+                    board totally non-functional."
+            }
+            cdl_option CYGNUM_IO_FLASH_TEST_LENGTH {
+                display         "Length"
+                flavor          data
+                default_value   0x100000
+                description     "
+                    This gives the length of the region of flash used for testing."
+            }
         }
     }
 }
Index: io/flash/current/tests/flash1.c
===================================================================
RCS file: io/flash/current/tests/flash1.c
diff -N io/flash/current/tests/flash1.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ io/flash/current/tests/flash1.c	15 Aug 2004 12:26:44 -0000
@@ -0,0 +1,237 @@
+//=================================================================
+//
+//        flash1.c
+//
+//        Simple tests for FLASH drivers
+//
+//=================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+// Copyright (C) 2004 Gary Thomas
+//
+// 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):     gthomas
+// Contributors:  
+// Date:          2004-04-24
+// Description:   Simple test of FLASH I/O.
+//
+// Options:
+//####DESCRIPTIONEND####
+
+// #define DEBUG_PRINTFS
+
+#include <pkgconf/hal.h>
+#include <pkgconf/io_flash.h>
+#include CYGHWR_MEMORY_LAYOUT_H
+
+#include <cyg/infra/diag.h>
+#include <cyg/infra/testcase.h>
+
+#include <cyg/io/flash.h>
+#include <cyg/hal/hal_if.h>
+
+externC void
+cyg_start( void )
+{
+    int stat;
+    void *err_addr;
+    CYG_ADDRWORD flash_start, flash_end;
+    void *flash_test_start, *flash_addr;
+    cyg_uint32 flash_block_size, flash_num_blocks;
+    CYG_ADDRWORD test_buf1, test_buf2;
+    cyg_uint32 *lp1, *lp2;
+    int i, j, len;
+    cyg_bool passed, ok;
+
+#if 0
+    diag_printf("Testing udelay: ");
+    for (i = 0;  i < 30;  i++) {
+        for (j = 0;  j < 1000;  j++) {
+            CYGACC_CALL_IF_DELAY_US(1000);  // Should be 1 second
+        }
+        diag_printf(".");
+    }
+    diag_printf("\n");
+#endif
+
+    passed = true;
+
+    if ((stat = flash_init(diag_printf)) != 0) {
+        diag_printf("FLASH: driver init failed: %s\n", flash_errmsg(stat));
+        CYG_TEST_FAIL_FINISH("FLASH driver init failed");
+    }
+    flash_get_limits((void *)0, (void **)&flash_start, (void **)&flash_end);
+    // Keep 'end' address as last valid location, to avoid wrap around problems
+    flash_end = flash_end - 1;
+    flash_get_block_info(&flash_block_size, &flash_num_blocks);
+
+    diag_printf("FLASH: %p - %p, %d blocks of 0x%x bytes each.\n", 
+                flash_start, flash_end + 1, flash_num_blocks, flash_block_size);
+
+    // Verify that the testing limits are within the bounds of the
+    // physical device.  Also verify that the size matches with
+    // the erase block size on the device
+    if ((CYGNUM_IO_FLASH_TEST_OFFSET > (flash_end - flash_start)) ||
+        ((CYGNUM_IO_FLASH_TEST_OFFSET + CYGNUM_IO_FLASH_TEST_LENGTH) > (flash_end - flash_start))) {
+        CYG_TEST_FAIL_FINISH("FLASH test region outside physical limits");
+    }
+    if ((CYGNUM_IO_FLASH_TEST_LENGTH % flash_block_size) != 0) {
+        CYG_TEST_FAIL_FINISH("FLASH test region must be integral multiple of erase block size");
+    }
+
+    // Allocate two buffers large enough for the test
+    test_buf1 = (CYG_ADDRWORD)CYGMEM_SECTION_heap1;
+    test_buf2 = test_buf1 + CYGNUM_IO_FLASH_TEST_LENGTH;
+    if (CYGMEM_SECTION_heap1_SIZE < (CYGNUM_IO_FLASH_TEST_LENGTH * 2)) {
+        CYG_TEST_FAIL_FINISH("FLASH not enough heap space - reduce size of test region");
+    }
+    diag_printf("... Using test buffers at %p and %p\n", (void *)test_buf1, (void *)test_buf2);
+    flash_test_start = (void *)(flash_start + CYGNUM_IO_FLASH_TEST_OFFSET);
+
+    // Erase test
+    diag_printf("... Erase test\n");
+    ok = true;
+    if ((stat = flash_erase(flash_test_start, 
+                            CYGNUM_IO_FLASH_TEST_LENGTH, &err_addr)) != FLASH_ERR_OK) {
+        diag_printf("FLASH: erase failed: %s\n", flash_errmsg(stat));
+        ok = false;
+    }    
+    if (ok && (stat = flash_read(flash_test_start, (void *)test_buf1,
+                           CYGNUM_IO_FLASH_TEST_LENGTH, &err_addr)) != FLASH_ERR_OK) {
+        diag_printf("FLASH: read/verify after erase failed: %s\n", flash_errmsg(stat));
+        ok = false;
+    }    
+    lp1 = (cyg_uint32 *)test_buf1;
+    for (i = 0;  i < CYGNUM_IO_FLASH_TEST_LENGTH;  i += sizeof(cyg_uint32)) {
+        if (*lp1++ != 0xFFFFFFFF) {
+            diag_printf("FLASH: non-erased data found at offset %p\n", (CYG_ADDRWORD)(lp1-1) - test_buf1);
+            diag_dump_buf((void *)(lp1-1), 32);
+            ok = false;
+            break;
+        }
+    }
+    // Try reading in little pieces
+    len = CYGNUM_IO_FLASH_TEST_LENGTH;
+    flash_addr = flash_test_start;
+    while (len > 0) {
+        if ((stat = flash_read(flash_addr, (void *)test_buf1, 0x200, &err_addr)) != FLASH_ERR_OK) {
+            diag_printf("FLASH: read[short]/verify after erase failed: %s\n", flash_errmsg(stat));
+            ok = false;
+            break;
+        }    
+        flash_addr = (cyg_uint8 *)flash_addr + 0x200;
+        len -= 0x200;
+        lp1 = (cyg_uint32 *)test_buf1;
+        for (i = 0;  i < 0x200;  i += sizeof(cyg_uint32)) {
+            if (*lp1++ != 0xFFFFFFFF) {
+                diag_printf("FLASH: non-erased data found at offset %p\n", 
+                            (cyg_uint8 *)flash_addr + (CYG_ADDRWORD)((lp1-1) - test_buf1));
+                diag_dump_buf((void *)(lp1-1), 32);
+                ok = false;
+                len = 0;
+                break;
+            }
+        }
+    }
+    
+    if (!ok) {
+        CYG_TEST_INFO("FLASH erase failed");
+        passed = false;
+    }
+
+    // Simple write/verify test
+    diag_printf("... Write/verify test\n");
+    lp1 = (cyg_uint32 *)test_buf1;
+    for (i = 0;  i < CYGNUM_IO_FLASH_TEST_LENGTH;  i += sizeof(cyg_uint32)) {
+        *lp1 = (cyg_uint32)lp1;
+        lp1++;
+    }
+    ok = true;
+    if (ok && (stat = flash_program(flash_test_start, (void *)test_buf1,
+                                    CYGNUM_IO_FLASH_TEST_LENGTH, &err_addr)) != FLASH_ERR_OK) {
+        diag_printf("FLASH: write failed: %s\n", flash_errmsg(stat));
+        ok = false;
+    }    
+    if (ok && (stat = flash_read(flash_test_start, (void *)test_buf2,
+                                    CYGNUM_IO_FLASH_TEST_LENGTH, &err_addr)) != FLASH_ERR_OK) {
+        diag_printf("FLASH: read/verify after write failed: %s\n", flash_errmsg(stat));
+        ok = false;
+    }    
+    lp1 = (cyg_uint32 *)test_buf1;
+    lp2 = (cyg_uint32 *)test_buf2;
+    for (i = 0;  i < CYGNUM_IO_FLASH_TEST_LENGTH;  i += sizeof(cyg_uint32)) {
+        if (*lp2++ != *lp1++) {
+            diag_printf("FLASH: incorrect data found at offset %p\n", (CYG_ADDRWORD)(lp2-1) - test_buf2);
+            diag_dump_buf((void *)(lp2-1), 32);
+            ok = false;
+            break;
+        }
+    }
+    // Try reading in little pieces
+    len = CYGNUM_IO_FLASH_TEST_LENGTH;
+    flash_addr = flash_test_start;
+    lp1 = (cyg_uint32 *)test_buf1;
+    lp2 = (cyg_uint32 *)test_buf2;
+    while (len > 0) {
+        if ((stat = flash_read(flash_addr, lp2, 0x200, &err_addr)) != FLASH_ERR_OK) {
+            diag_printf("FLASH: read[short]/verify after erase failed: %s\n", flash_errmsg(stat));
+            ok = false;
+            break;
+        }    
+        flash_addr = (cyg_uint8 *)flash_addr + 0x200;
+        len -= 0x200;
+        for (i = 0;  i < 0x200;  i += sizeof(cyg_uint32)) {
+            if (*lp2++ != *lp1++) {
+                diag_printf("FLASH: incorrect data found at offset %p\n", 
+                            (cyg_uint8 *)flash_addr + (CYG_ADDRWORD)((lp2-1) - test_buf2));
+                diag_dump_buf((void *)(lp2-1), 32);
+                ok = false;
+                len = 0;
+                break;
+            }
+        }
+    }
+
+    if (!ok) {
+        CYG_TEST_INFO("FLASH write/verify failed");
+    }
+
+    if (passed) {
+        CYG_TEST_PASS_FINISH("FLASH test1");
+    } else {
+        CYG_TEST_FAIL_FINISH("FLASH test1");
+    }
+}
+
+// EOF flash1.c

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