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authorPaul Menzel <paulepanter@users.sourceforge.net>2013-02-22 12:33:08 +0100
committerMarc Jones <marc.jones@se-eng.com>2013-03-07 01:07:43 +0100
commit0f4c0e2669f76bf1081bf13019bc664b4f0e6b38 (patch)
tree6c3d4aa1a06ca5dc001b4b0a3e28ce6d145ec046 /src/arch/x86/boot
parentd59fc5340ea2fc12f6cf98a2e2166435869f0d3c (diff)
src/arch/x86/boot/acpigen.c: Small coding style and comment fixes
While reading through the file fix some spotted errors like indentation, locution(?), capitalization and missing full stops. Change-Id: Id435b4750e329b06a9b36c1df2c39d2038a09b18 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/2484 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martin.roth@se-eng.com> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Diffstat (limited to 'src/arch/x86/boot')
-rw-r--r--src/arch/x86/boot/acpigen.c49
1 files changed, 30 insertions, 19 deletions
diff --git a/src/arch/x86/boot/acpigen.c b/src/arch/x86/boot/acpigen.c
index 4b12a76cde..58e783ed41 100644
--- a/src/arch/x86/boot/acpigen.c
+++ b/src/arch/x86/boot/acpigen.c
@@ -17,11 +17,13 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-/* how many nesting we support */
+/* How much nesting do we support? */
#define ACPIGEN_LENSTACK_SIZE 10
-/* if you need to change this, change the acpigen_write_f and
- acpigen_patch_len */
+/*
+ * If you need to change this, change acpigen_write_f and
+ * acpigen_patch_len
+ */
#define ACPIGEN_MAXLEN 0xfff
@@ -38,7 +40,7 @@ int ltop = 0;
int acpigen_write_len_f(void)
{
ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1))
- len_stack[ltop++] = gencurrent;
+ len_stack[ltop++] = gencurrent;
acpigen_emit_byte(0);
acpigen_emit_byte(0);
return 2;
@@ -47,7 +49,7 @@ int acpigen_write_len_f(void)
void acpigen_patch_len(int len)
{
ASSERT(len <= ACPIGEN_MAXLEN)
- ASSERT(ltop > 0)
+ ASSERT(ltop > 0)
char *p = len_stack[--ltop];
/* generate store length for 0xfff max */
p[0] = (0x40 | (len & 0xf));
@@ -148,10 +150,14 @@ int acpigen_emit_stream(const char *data, int size)
return size;
}
-/* The NameString are bit tricky, each element can be 4 chars, if
- less its padded with underscore. Check 18.2.2 and 18.4
- and 5.3 of ACPI specs 3.0 for details
-*/
+/*
+ * The naming conventions for ACPI namespace names are a bit tricky as
+ * each element has to be 4 chars wide (»All names are a fixed 32 bits.«)
+ * and »By convention, when an ASL compiler pads a name shorter than 4
+ * characters, it is done so with trailing underscores (‘_’).«.
+ *
+ * Check sections 5.3, 18.2.2 and 18.4 of ACPI spec 3.0 for details.
+ */
static int acpigen_emit_simple_namestring(const char *name) {
int i, len = 0;
@@ -205,13 +211,13 @@ int acpigen_emit_namestring(const char *namepath) {
int dotpos = 0;
int len = 0;
- /* we can start with a \ */
+ /* We can start with a »\«. */
if (namepath[0] == '\\') {
len += acpigen_emit_byte('\\');
namepath++;
}
- /* and there can be any number of ^ */
+ /* And there can be any number of »^«. */
while (namepath[0] == '^') {
len += acpigen_emit_byte('^');
namepath++;
@@ -370,7 +376,9 @@ int acpigen_write_empty_PTC(void)
return len + nlen;
}
-/* generates a func with max supported P states */
+/*
+ * Generates a func with max supported P-states.
+ */
int acpigen_write_PPC(u8 nr)
{
/*
@@ -396,7 +404,10 @@ int acpigen_write_PPC(u8 nr)
return len;
}
-/* generates a func with max supported P states */
+/*
+ * Generates a func with max supported P-states saved
+ * in the variable PPCM.
+ */
int acpigen_write_PPC_NVS(void)
{
/*
@@ -621,7 +632,7 @@ int acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16)
* Bit2-0: 111 (0x7) => 7 Bytes long
*/
acpigen_emit_byte(0x47);
- /* does the device decode all 16 or just 10 bits? */
+ /* Does the device decode all 16 or just 10 bits? */
/* bit1-7 are ignored */
acpigen_emit_byte(decode16 ? 0x01 : 0x00);
/* minimum base address the device may be configured for */
@@ -642,12 +653,12 @@ int acpigen_write_resourcetemplate_header(void)
/*
* A ResourceTemplate() is a Buffer() with a
* (Byte|Word|DWord) containing the length, followed by one or more
- * resource items, terminated by the end tag
+ * resource items, terminated by the end tag.
* (small item 0xf, len 1)
*/
- len = acpigen_emit_byte(0x11); /* Buffer opcode */
+ len = acpigen_emit_byte(0x11); /* Buffer opcode */
len += acpigen_write_len_f();
- len += acpigen_emit_byte(0x0b); /* Word opcode */
+ len += acpigen_emit_byte(0x0b); /* Word opcode */
len_stack[ltop++] = acpigen_get_current();
len += acpigen_emit_byte(0x00);
len += acpigen_emit_byte(0x00);
@@ -700,13 +711,13 @@ int acpigen_write_mainboard_resource_template(void)
len = acpigen_write_resourcetemplate_header();
start = acpigen_get_current();
- /* Add reserved memory ranges */
+ /* Add reserved memory ranges. */
search_global_resources(
IORESOURCE_MEM | IORESOURCE_RESERVE,
IORESOURCE_MEM | IORESOURCE_RESERVE,
acpigen_add_mainboard_rsvd_mem32, 0);
- /* Add reserved io ranges */
+ /* Add reserved io ranges. */
search_global_resources(
IORESOURCE_IO | IORESOURCE_RESERVE,
IORESOURCE_IO | IORESOURCE_RESERVE,