The code police strikes back

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4024 a1c6a512-1295-4272-9138-f99709370657

9 files changed, 79 insertions, 195 deletions

diff --git a/firmware/backlight.c b/firmware/backlight.c
index 9a1159e..d3b4580 100644
--- a/firmware/backlight.c
+++ b/firmware/backlight.c
@@ -74,7 +74,7 @@ void backlight_thread(void)
                     /* Disable square wave */
                     rtc_write(0x0a, rtc_read(0x0a) & ~0x40);
 #else
-                    __set_bit_constant(14-8, &PADRH);
+                    or_b(0x40, &PADRH);
 #endif  
                 }
                 /* else if(backlight_timer) */
@@ -84,7 +84,7 @@ void backlight_thread(void)
                     /* Enable square wave */
                     rtc_write(0x0a, rtc_read(0x0a) | 0x40);
 #else
-                    __clear_bit_constant(14-8, &PADRH);
+                    and_b(~0x40, &PADRH);
 #endif
                 }
                 break;
@@ -94,7 +94,7 @@ void backlight_thread(void)
                 /* Disable square wave */
                 rtc_write(0x0a, rtc_read(0x0a) & ~0x40);
 #else
-                __set_bit_constant(14-8, &PADRH);
+                or_b(0x40, &PADRH);
 #endif
                 break;
                 
@@ -172,7 +172,10 @@ void backlight_init(void)
     create_thread(backlight_thread, backlight_stack,
                   sizeof(backlight_stack), backlight_thread_name);
 
-    __set_bit_constant(14-8, &PAIORH);
+#ifndef HAVE_RTC
+    
+    or_b(0x40, &PAIORH); /* Set data direction of PA14 */
+#endif
     
     backlight_on();
 }
diff --git a/firmware/drivers/ata.c b/firmware/drivers/ata.c
index 507a0c6..3c58d1f 100644
--- a/firmware/drivers/ata.c
+++ b/firmware/drivers/ata.c
@@ -607,11 +607,11 @@ int ata_hard_reset(void)
     int ret;
     
     /* state HRR0 */
-    __clear_bit_constant(9-8, &PADRH); /* assert _RESET */
+    and_b(~0x02, &PADRH); /* assert _RESET */
     sleep(1); /* > 25us */
 
     /* state HRR1 */
-    __set_bit_constant(9-8, &PADRH); /* negate _RESET */
+    or_b(0x02, &PADRH); /* negate _RESET */
     sleep(1); /* > 2ms */
 
     /* state HRR2 */
@@ -718,11 +718,11 @@ static int io_address_detect(void)
 void ata_enable(bool on)
 {
     if(on)
-        __clear_bit_constant(7, &PADRL); /* enable ATA */
+        and_b(~0x80, &PADRL); /* enable ATA */
     else
-        __set_bit_constant(7, &PADRL); /* disable ATA */
+        or_b(0x80, &PADRL); /* disable ATA */
 
-    __set_bit_constant(7, &PAIORL);
+    or_b(0x80, &PAIORL);
 }
 
 static int identify(void)
@@ -787,8 +787,8 @@ int ata_init(void)
     led(false);
 
     /* Port A setup */
-    __set_bit_constant(9-8, &PAIORH); /* output for ATA reset */
-    __set_bit_constant(9-8, &PADRH); /* release ATA reset */
+    or_b(0x02, &PAIORH); /* output for ATA reset */
+    or_b(0x02, &PADRH); /* release ATA reset */
     PACR2 &= 0xBFFF; /* GPIO function for PA7 (IDE enable) */
 
     sleeping = false;
diff --git a/firmware/drivers/fmradio.c b/firmware/drivers/fmradio.c
index 4b496b7..604005b 100644
--- a/firmware/drivers/fmradio.c
+++ b/firmware/drivers/fmradio.c
@@ -32,21 +32,16 @@
    DO (Data Out)    - PB4
 */
 
-#define PB0  0x0001
-#define PB1  0x0002
-#define PB3  0x0008
-#define PB4  0x0010
-
 /* cute little functions */
-#define CE_LO  __clear_bit_constant(3, PBDRL_ADDR)
-#define CE_HI  __set_bit_constant(3, PBDRL_ADDR)
-#define CL_LO  __clear_bit_constant(1, PBDRL_ADDR)
-#define CL_HI  __set_bit_constant(1, PBDRL_ADDR)
-#define DO     (PBDR & PB4)
-#define DI_LO  __clear_bit_constant(0, PBDRL_ADDR)
-#define DI_HI  __set_bit_constant(0, PBDRL_ADDR)
-
-#define START __set_mask_constant((PB3 | PB1), PBDRL_ADDR)
+#define CE_LO  and_b(~0x08, PBDRL_ADDR)
+#define CE_HI  or_b(0x08, PBDRL_ADDR)
+#define CL_LO  and_b(~0x02, PBDRL_ADDR)
+#define CL_HI  or_b(0x02, PBDRL_ADDR)
+#define DO     (PBDR & 0x10)
+#define DI_LO  and_b(~0x01, PBDRL_ADDR)
+#define DI_HI  or_b(0x01, PBDRL_ADDR)
+
+#define START or_b((0x08 | 0x02), PBDRL_ADDR)
 
 /* delay loop */
 #define DELAY   do { int _x; for(_x=0;_x<10;_x++);} while (0)
diff --git a/firmware/drivers/i2c.c b/firmware/drivers/i2c.c
index 6530227..24ad774 100644
--- a/firmware/drivers/i2c.c
+++ b/firmware/drivers/i2c.c
@@ -23,22 +23,23 @@
 #include "debug.h"
 #include "system.h"
 
-#define PB13 0x2000
-#define PB7  0x0080
-#define PB5  0x0020
-
+/*
+**  SDA is PB7
+**  SCL is PB13
+*/
+   
 /* cute little functions, atomic read-modify-write */
-#define SDA_LO     __clear_bit_constant(7, &PBDRL)
-#define SDA_HI     __set_bit_constant(7, &PBDRL)
-#define SDA_INPUT  __clear_bit_constant(7, &PBIORL)
-#define SDA_OUTPUT __set_bit_constant(7, &PBIORL)
-#define SDA     (PBDR & PB7)
-
-#define SCL_INPUT  __clear_bit_constant(13-8, &PBIORH)
-#define SCL_OUTPUT __set_bit_constant(13-8, &PBIORH)
-#define SCL_LO     __clear_bit_constant(13-8, &PBDRH)
-#define SCL_HI     __set_bit_constant(13-8, &PBDRH)
-#define SCL     (PBDR & PB13)
+#define SDA_LO     and_b(~0x80, &PBDRL)
+#define SDA_HI     or_b(0x80, &PBDRL)
+#define SDA_INPUT  and_b(~0x80, &PBIORL)
+#define SDA_OUTPUT or_b(0x80, &PBIORL)
+#define SDA     (PBDR & 0x80)
+
+#define SCL_INPUT  and_b(~0x20, &PBIORH)
+#define SCL_OUTPUT or_b(0x20, &PBIORH)
+#define SCL_LO     and_b(~0x20, &PBDRH)
+#define SCL_HI     or_b(0x20, &PBDRH)
+#define SCL     (PBDR & 0x2000)
 
 /* arbitrary delay loop */
 #define DELAY   do { int _x; for(_x=0;_x<20;_x++);} while (0)
@@ -82,11 +83,11 @@ void i2c_init(void)
    PBCR2 &= ~0xcc00; /* PB5 abd PB7 */
 
    /* PB5 is "MAS enable". make it output and high */
-   __set_bit_constant(5, &PBIORL);
-   __set_bit_constant(5, &PBDRL);
+   or_b(0x20, &PBIORL);
+   or_b(0x20, &PBDRL);
 
    /* Set the clock line PB13 to an output */
-    __set_bit_constant(13-8, &PBIORH);
+    or_b(0x20, &PBIORH);
    
    SDA_OUTPUT;
    SDA_HI;
diff --git a/firmware/drivers/led.c b/firmware/drivers/led.c
index ad21dc9..adeb271 100644
--- a/firmware/drivers/led.c
+++ b/firmware/drivers/led.c
@@ -24,19 +24,12 @@
 
 void led(bool on)
 {
-#ifdef ASM_IMPLEMENTATION
-    if ( on )
-        asm("or.b"  "\t" "%0,@(r0,gbr)" : : "I"(0x40), "z"(PBDR_ADDR+1));
-    else
-        asm("and.b" "\t" "%0,@(r0,gbr)" : : "I"(~0x40), "z"(PBDR_ADDR+1));
-#else
     if ( on )
     {
-        __set_bit_constant(6, &PBDRL);
+        or_b(0x40, &PBDRL);
     }
     else
     {
-        __clear_bit_constant(6, &PBDRL);
+        and_b(~0x40, &PBDRL);
     }
-#endif
 }
diff --git a/firmware/drivers/mas.c b/firmware/drivers/mas.c
index 4d2c35b..c39a46c 100644
--- a/firmware/drivers/mas.c
+++ b/firmware/drivers/mas.c
@@ -269,21 +269,21 @@ static int mas_devread(unsigned long *dest, int len)
 #ifdef HAVE_MAS3587F
 void mas_reset(void)
 {
-    __set_bit_constant(8-8, &PAIORH);
+    or_b(0x01, &PAIORH);
     
     if(old_recorder)
     {
         /* Older recorder models don't invert the POR signal */
-        __set_bit_constant(8-8, &PADRH);
+        or_b(0x01, &PADRH);
         sleep(HZ/100);
-        __clear_bit_constant(8-8, &PADRH);
+        and_b(~0x01, &PADRH);
         sleep(HZ/5);
     }
     else
     {
-        __clear_bit_constant(8-8, &PADRH);
+        and_b(~0x01, &PADRH);
         sleep(HZ/100);
-        __set_bit_constant(8-8, &PADRH);
+        or_b(0x01, &PADRH);
         sleep(HZ/5);
     }
 }
diff --git a/firmware/drivers/power.c b/firmware/drivers/power.c
index c0fa57d..14e912d 100644
--- a/firmware/drivers/power.c
+++ b/firmware/drivers/power.c
@@ -33,11 +33,11 @@ bool charger_enabled;
 void power_init(void)
 {
 #ifdef HAVE_CHARGE_CTRL
-    __set_bit_constant(5, &PBIORL); /* Set charging control bit to output */
+    or_b(0x20, &PBIORL); /* Set charging control bit to output */
     charger_enable(false); /* Default to charger OFF */
 #endif
 #ifdef HAVE_ATA_POWER_OFF
-    __set_bit_constant(5, &PAIORL);
+    or_b(0x20, &PAIORL);
     PACR2 &= 0xFBFF;
 #endif
 }
@@ -63,12 +63,12 @@ void charger_enable(bool on)
 #ifdef HAVE_CHARGE_CTRL
     if(on) 
     {
-        __clear_bit_constant(5, &PBDRL);
+        and_b(~0x20, &PBDRL);
         charger_enabled = 1;
     } 
     else 
     {
-        __set_bit_constant(5, &PBDRL);
+        or_b(0x20, &PBDRL);
         charger_enabled = 0;
     }
 #else
@@ -80,9 +80,9 @@ void ide_power_enable(bool on)
 {
 #ifdef HAVE_ATA_POWER_OFF
     if(on)
-        __set_bit_constant(5, &PADRL);
+        or_b(0x20, &PADRL);
     else
-        __clear_bit_constant(5, &PADRL);
+        and_b(~0x20, &PADRL);
 #else
     on = on;
 #endif
@@ -92,14 +92,14 @@ void power_off(void)
 {
     set_irq_level(15);
 #ifdef HAVE_POWEROFF_ON_PBDR
-    __clear_mask_constant(PBDR_BTN_OFF, &PBDRL);
-    __set_mask_constant(PBDR_BTN_OFF, &PBIORL);
+    and_b(~0x10, &PBDRL);
+    or_b(0x10, &PBIORL);
 #elif defined(HAVE_POWEROFF_ON_PB5)
-    __clear_bit_constant(5, &PBDRL);
-    __set_bit_constant(5, &PBIORL);
+    and_b(~0x20, &PBDRL);
+    or_b(0x20, &PBIORL);
 #else
-    __clear_bit_constant(11-8, &PADRH);
-    __set_bit_constant(11-8, &PAIORH);
+    and_b(~0x08, &PADRH);
+    or_b(0x08, &PAIORH);
 #endif
     while(1);
 }
diff --git a/firmware/export/system.h b/firmware/export/system.h
index d5f1b4b..01d2f13 100644
--- a/firmware/export/system.h
+++ b/firmware/export/system.h
@@ -46,135 +46,27 @@
 #define nop \
   asm volatile ("nop")
 
-#define __set_mask_constant(mask,address) \
+#define or_b(mask, address) \
   asm                                     \
     ("or.b\t%0,@(r0,gbr)"                 \
      :                                    \
      : /* %0 */ "I"((char)(mask)),        \
        /* %1 */ "z"(address-GBR))
 
-#define __clear_mask_constant(mask,address) \
+#define and_b(mask, address) \
   asm                                       \
     ("and.b\t%0,@(r0,gbr)"                  \
      :                                      \
-     : /* %0 */ "I"((char)~(mask)),         \
+     : /* %0 */ "I"((char)(mask)),         \
        /* %1 */ "z"(address-GBR))
 
-#define __toggle_mask_constant(mask,address) \
+#define xor_b(mask, address) \
   asm                                        \
     ("xor.b\t%0,@(r0,gbr)"                   \
      :                                       \
      : /* %0 */ "I"((char)(mask)),           \
        /* %1 */ "z"(address-GBR))
 
-#define __test_mask_constant(mask,address)    \
-  ({                                          \
-    int result;                               \
-    asm                                       \
-      ("tst.b\t%1,@(r0,gbr)\n\tmovt\t%0"      \
-       : "=r"(result)                         \
-       : "I"((char)(mask)),"z"(address-GBR)); \
-    result;                                   \
-  })
-
-#define __set_bit_constant(bit,address) \
-  asm                                   \
-    ("or.b\t%0,@(r0,gbr)"               \
-     :                                  \
-     : /* %0 */ "I"((char)(1<<(bit))),  \
-       /* %1 */ "z"(address-GBR))
-
-#define __clear_bit_constant(bit,address) \
-  asm                                     \
-    ("and.b\t%0,@(r0,gbr)"                \
-     :                                    \
-     : /* %0 */ "I"((char)~(1<<(bit))),   \
-       /* %1 */ "z"(address-GBR))
-
-#define __toggle_bit_constant(bit,address) \
-  asm                                      \
-    ("xor.b\t%0,@(r0,gbr)"                 \
-     :                                     \
-     : /* %0 */ "I"((char)(1<<(bit))),     \
-       /* %1 */ "z"(address-GBR))
-
-#define __test_bit_constant(bit,address)      \
-  ({                                          \
-    int result;                               \
-    asm                                       \
-      ("tst.b\t%1,@(r0,gbr)\n\tmovt\t%0"      \
-       : "=r"(result)                         \
-       : "I"((char)(1<<(bit))),"z"(address-GBR)); \
-    result;                                   \
-  })
-
-#define __set_mask(mask,address)      /* FIXME */
-#define __test_mask(mask,address)   0 /* FIXME */
-#define __clear_mask(mask,address)    /* FIXME */
-#define __toggle_mask(mask,address)   /* FIXME */
-
-#define __set_bit(bit,address)      /* FIXME */
-#define __test_bit(bit,address)   0 /* FIXME */
-#define __clear_bit(bit,address)    /* FIXME */
-#define __toggle_bit(bit,address)   /* FIXME */
-
-#define set_mask(mask,address)          \
-  if (__builtin_constant_p (mask))      \
-    __set_mask_constant (mask,address); \
-  else                                  \
-    __set_mask (mask,address)
-
-#define clear_mask(mask,address)          \
-  if (__builtin_constant_p (mask))        \
-    __clear_mask_constant (mask,address); \
-  else                                    \
-    __clear_mask (mask,address)
-
-#define toggle_mask(mask,address)          \
-  if (__builtin_constant_p (mask))         \
-    __toggle_mask_constant (mask,address); \
-  else                                     \
-    __toggle_mask (mask,address)
-
-#define test_mask(mask,address)              \
-  (                                          \
-    (__builtin_constant_p (mask))            \
-  ? (int)__test_mask_constant (mask,address) \
-  : (int)__test_mask (mask,address)          \
-  )
-
-
-#define set_bit(bit,address)          \
-  if (__builtin_constant_p (bit))     \
-    __set_bit_constant (bit,address); \
-  else                                \
-    __set_bit (bit,address)
-
-#define clear_bit(bit,address)          \
-  if (__builtin_constant_p (bit))       \
-    __clear_bit_constant (bit,address); \
-  else                                  \
-    __clear_bit (bit,address)
-
-#define toggle_bit(bit,address)          \
-  if (__builtin_constant_p (bit))        \
-    __toggle_bit_constant (bit,address); \
-  else                                   \
-    __toggle_bit (bit,address)
-
-#define test_bit(bit,address)              \
-  (                                        \
-    (__builtin_constant_p (bit))           \
-  ? (int)__test_bit_constant (bit,address) \
-  : (int)__test_bit (bit,address)          \
-  )
-
-
-extern char __swap_bit[256];
-
-#define swap_bit(byte) \
-  __swap_bit[byte]
-
 #ifndef SIMULATOR
 
 static inline short SWAB16(short value)
diff --git a/firmware/mpeg.c b/firmware/mpeg.c
index a8f2dd3..b51f9b9 100644
--- a/firmware/mpeg.c
+++ b/firmware/mpeg.c
@@ -740,7 +740,7 @@ void drain_dma_buffer(void)
     {
         while((*((volatile unsigned char *)PBDR_ADDR) & 0x40))
         {
-            __set_bit_constant(11-8, &PADRH);
+            or_b(0x08, &PADRH);
             
             while(*((volatile unsigned char *)PBDR_ADDR) & 0x80);
                     
@@ -748,7 +748,7 @@ void drain_dma_buffer(void)
                the data is read */
             asm(" nop\n nop\n nop\n");
             asm(" nop\n nop\n nop\n");
-            __clear_bit_constant(11-8, &PADRH);
+            and_b(~0x08, &PADRH);
 
             while(!(*((volatile unsigned char *)PBDR_ADDR) & 0x80));
         }
@@ -757,7 +757,7 @@ void drain_dma_buffer(void)
     {
         while((*((volatile unsigned char *)PBDR_ADDR) & 0x40))
         {
-            __clear_bit_constant(11-8, &PADRH);
+            and_b(~0x08, &PADRH);
             
             while(*((volatile unsigned char *)PBDR_ADDR) & 0x80);
             
@@ -766,7 +766,7 @@ void drain_dma_buffer(void)
             asm(" nop\n nop\n nop\n");
             asm(" nop\n nop\n nop\n");
                     
-            __set_bit_constant(11-8, &PADRH);
+            or_b(0x08, &PADRH);
 
             while(!(*((volatile unsigned char *)PBDR_ADDR) & 0x80));
         }
@@ -814,7 +814,7 @@ static void dma_tick(void)
                 while((*((volatile unsigned char *)PBDR_ADDR) & 0x40)
                       && i < 30)
                 {
-                    __set_bit_constant(11-8, &PADRH);
+                    or_b(0x08, &PADRH);
 
                     while(*((volatile unsigned char *)PBDR_ADDR) & 0x80);
                     
@@ -828,7 +828,7 @@ static void dma_tick(void)
 
                     i++;
                     
-                    __clear_bit_constant(11-8, &PADRH);
+                    and_b(~0x08, &PADRH);
 
                     /* No wait for /RTW, cause it's not necessary */
                 }
@@ -839,7 +839,7 @@ static void dma_tick(void)
                 while((*((volatile unsigned char *)PBDR_ADDR) & 0x40)
                       && i < 30)
                 {
-                    __clear_bit_constant(11-8, &PADRH);
+                    and_b(~0x08, &PADRH);
                     
                     while(*((volatile unsigned char *)PBDR_ADDR) & 0x80);
                     
@@ -853,7 +853,7 @@ static void dma_tick(void)
 
                     i++;
                     
-                    __set_bit_constant(11-8, &PADRH);
+                    or_b(0x08, &PADRH);
 
                     /* No wait for /RTW, cause it's not necessary */
                 }
@@ -2169,7 +2169,7 @@ static void setup_sci0(void)
     PBCR1 = (PBCR1 & 0x0cff) | 0x1208;
     
     /* Set PB12 to output */
-    __set_bit_constant(12-8, &PBIORH);
+    or_b(0x10, &PBIORH);
 
     /* Disable serial port */
     SCR0 = 0x00;
@@ -2190,8 +2190,8 @@ static void setup_sci0(void)
     IPRD &= 0x0ff0;
 
     /* set PB15 and PB14 to inputs */
-     __clear_bit_constant(15-8, &PBIORH);
-     __clear_bit_constant(14-8, &PBIORH);
+     and_b(~0x80, &PBIORH);
+     and_b(~0x40, &PBIORH);
 
     /* Enable End of DMA interrupt at prio 8 */
     IPRC = (IPRC & 0xf0ff) | 0x0800;
@@ -3144,7 +3144,7 @@ void mpeg_init(int volume, int bass, int treble, int balance, int loudness,
     setup_sci0();
 
 #ifdef HAVE_MAS3587F
-    __set_bit_constant(11-8, &PAIORH); /* output for /PR */
+    or_b(0x08, &PAIORH); /* output for /PR */
     init_playback();
     
     mas_version_code = mas_readver();
@@ -3157,9 +3157,9 @@ void mpeg_init(int volume, int bass, int treble, int balance, int loudness,
 #endif
     
 #ifdef HAVE_MAS3507D
-    __clear_bit_constant(5, &PBDRL);
+    and_b(~0x20, &PBDRL);
     sleep(HZ/5);
-    __set_bit_constant(5, &PBDRL);
+    or_b(0x20, &PBDRL);
     sleep(HZ/5);
     
     /* set IRQ6 to edge detect */