Author: stepan
Date: 2009-09-16 10:26:59 +0200 (Wed, 16 Sep 2009)
New Revision: 723

Modified:
   trunk/82802ab.c
   trunk/ft2232_spi.c
   trunk/sb600spi.c
Log:
This patch cleans up flashrom so that it passes LLVM/clang's scan-build
without warnings.

Signed-off-by: Stefan Reinauer <[email protected]>
Acked-by: Ronald G. Minnich <[email protected]>



Modified: trunk/82802ab.c
===================================================================
--- trunk/82802ab.c     2009-09-16 08:18:08 UTC (rev 722)
+++ trunk/82802ab.c     2009-09-16 08:26:59 UTC (rev 723)
@@ -33,13 +33,13 @@
 // I need that Berkeley bit-map printer
 void print_82802ab_status(uint8_t status)
 {
-       printf("%s", status & 0x80 ? "Ready:" : "Busy:");
-       printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
-       printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
-       printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
-       printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
-       printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
-       printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
+       printf_debug("%s", status & 0x80 ? "Ready:" : "Busy:");
+       printf_debug("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
+       printf_debug("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
+       printf_debug("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
+       printf_debug("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
+       printf_debug("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
+       printf_debug("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
 }
 
 int probe_82802ab(struct flashchip *flash)
@@ -98,20 +98,19 @@
 
        // clear status register
        chip_writeb(0x50, bios);
-       //printf("Erase at %p\n", bios);
+
        // clear write protect
-       //printf("write protect is at %p\n", (wrprotect));
-       //printf("write protect is 0x%x\n", *(wrprotect));
        chip_writeb(0, wrprotect);
-       //printf("write protect is 0x%x\n", *(wrprotect));
 
        // now start it
        chip_writeb(0x20, bios);
        chip_writeb(0xd0, bios);
        programmer_delay(10);
+
        // now let's see what the register is
        status = wait_82802ab(flash->virtual_memory);
-       //print_82802ab_status(status);
+       print_82802ab_status(status);
+
        if (check_erased_range(flash, offset, flash->page_size)) {
                fprintf(stderr, "ERASE FAILED!\n");
                return -1;

Modified: trunk/ft2232_spi.c
===================================================================
--- trunk/ft2232_spi.c  2009-09-16 08:18:08 UTC (rev 722)
+++ trunk/ft2232_spi.c  2009-09-16 08:26:59 UTC (rev 723)
@@ -70,7 +70,6 @@
        int f;
        struct ftdi_context *ftdic = &ftdic_context;
        unsigned char buf[512];
-       unsigned char port_val = 0;
        char *portpos = NULL;
        int ft2232_type = FTDI_FT4232H;
        enum ftdi_interface ft2232_interface = INTERFACE_B;
@@ -175,9 +174,8 @@
         *    dir: 0x0b  CS=output, DI=input, DO=output, SK=output
         */
 #define CS_BIT 0x08
-
        buf[0] = SET_BITS_LOW;
-       buf[1] = (port_val = CS_BIT);
+       buf[1] = CS_BIT;
        buf[2] = 0x0b;
        if (send_buf(ftdic, buf, 3))
                return -1;
@@ -195,7 +193,6 @@
 {
        struct ftdi_context *ftdic = &ftdic_context;
        static unsigned char *buf = NULL;
-       unsigned char port_val = 0;
        int i, ret = 0;
 
        if (writecnt > 65536 || readcnt > 65536)
@@ -213,10 +210,11 @@
         * as possible together.  if we're not expecting to
         * read, we can assert CS, write, and deassert CS all
         * in one shot.  if reading, we do three separate
-        * operations. */
+        * operations.
+        */
        printf_debug("Assert CS#\n");
        buf[i++] = SET_BITS_LOW;
-       buf[i++] = (port_val &= ~CS_BIT);
+       buf[i++] = 0 & ~CS_BIT; /* assertive */
        buf[i++] = 0x0b;
 
        if (writecnt) {
@@ -236,20 +234,19 @@
                buf[i++] = ((readcnt - 1) >> 8) & 0xff;
                ret = send_buf(ftdic, buf, i);
                i = 0;
-               if (ret) goto deassert_cs;
+               if (ret == 0) {
+                       /* FIXME: This is unreliable. There's no guarantee that 
we read
+                        * the response directly after sending the read command.
+                        * We may be scheduled out etc.
+                        */
+                       ret = get_buf(ftdic, readarr, readcnt);
+               }
 
-               /* FIXME: This is unreliable. There's no guarantee that we read
-                * the response directly after sending the read command.
-                * We may be scheduled out etc.
-                */
-               ret = get_buf(ftdic, readarr, readcnt);
-
        }
 
-deassert_cs:
        printf_debug("De-assert CS#\n");
        buf[i++] = SET_BITS_LOW;
-       buf[i++] = (port_val |= CS_BIT);
+       buf[i++] = CS_BIT;
        buf[i++] = 0x0b;
        if (send_buf(ftdic, buf, i))
                return -1;

Modified: trunk/sb600spi.c
===================================================================
--- trunk/sb600spi.c    2009-09-16 08:18:08 UTC (rev 722)
+++ trunk/sb600spi.c    2009-09-16 08:26:59 UTC (rev 723)
@@ -64,6 +64,11 @@
        printf("Programming flash");
        for (i = 0; i < total_size; i++, buf++) {
                result = spi_byte_program(i, *buf);
+               if (result) {
+                       // spi_byte_program reported the error for us already
+                       printf_debug("... continuing anyway.\n");
+               }
+
                /* wait program complete. */
                if (i % 0x8000 == 0)
                        printf(".");


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