1 files changed, 10 insertions, 24 deletions

diff --git a/src/kernel/ide.c b/src/kernel/ide.c
index a32f149..a4ba34c 100644
--- a/src/kernel/ide.c
+++ b/src/kernel/ide.c
@@ -14,25 +14,13 @@ struct ide_drive_info {
   bool slave;
 };
 
-struct ide_drive_info ide_drives[MAX_IDE_DRIVES];
-drive_id_t n_ide_drives = 0;
+static struct ide_drive_info ide_drives[MAX_IDE_DRIVES];
+static drive_id_t n_ide_drives = 0;
 
 typedef uint16_t spinner_t;
 
 //returns the status after waiting
-uint8_t wait_after_cmd(uint16_t base_port) {
-  for (spinner_t n = -1; n; --n) {
-    uint8_t s = inb(base_port | ATA_REG_STATUS);
-    if (s & ATA_STATUS_ERROR)
-      panic("Error status in IDE driver.");
-    if (!(s & ATA_STATUS_BUSY))
-      return s;
-  }
-  panic("Spun out in IDE driver.");
-}
-
-//returns the status after waiting
-uint8_t wait_for_ready(uint16_t base_port) {
+static uint8_t wait_for_ready(uint16_t base_port) {
   for (spinner_t n = -1; n; --n) {
     uint8_t s = inb(base_port | ATA_REG_STATUS);
     if (s & ATA_STATUS_ERROR)
@@ -44,7 +32,7 @@ uint8_t wait_for_ready(uint16_t base_port) {
 }
 
 //returns the status after waiting
-uint8_t wait_for_error_or_ready(uint16_t base_port) {
+static uint8_t wait_for_error_or_ready(uint16_t base_port) {
   for (spinner_t n = -1; n; --n) {
     uint8_t s = inb(base_port | ATA_REG_STATUS);
     if (s & (ATA_STATUS_DRIVE_READY | ATA_STATUS_ERROR))
@@ -54,7 +42,7 @@ uint8_t wait_for_error_or_ready(uint16_t base_port) {
 }
 
 //returns the status after waiting
-uint8_t wait_for_data_ready_not_busy(uint16_t base_port) {
+static uint8_t wait_for_data_ready_not_busy(uint16_t base_port) {
   for (spinner_t n = -1; n; --n) {
     uint8_t s = inb(base_port | ATA_REG_STATUS);
     if (!(s & ATA_STATUS_BUSY) && (s & ATA_STATUS_DATA_READY))
@@ -65,7 +53,7 @@ uint8_t wait_for_data_ready_not_busy(uint16_t base_port) {
   panic("Spun out in IDE driver.");
 }
 
-uint8_t ide_ata_rs(const struct drive *d, uint32_t start, uint32_t count, void *buffer) {
+static uint8_t ide_ata_rs(const struct drive *d, uint32_t start, uint32_t count, void *buffer) {
   if (start >= d->n_sectors)
     return 0;
   if (start + count > d->n_sectors)
@@ -103,17 +91,17 @@ uint8_t ide_ata_rs(const struct drive *d, uint32_t start, uint32_t count, void *
   return count;
 }
 
-uint8_t ide_ata_ws(const struct drive *d, uint32_t start, uint32_t count, const void *buffer) {
+static uint8_t ide_ata_ws(const struct drive *d, uint32_t start, uint32_t count, const void *buffer) {
   panic("IDE ATA writing not implemented yet");
   return 0;
 }
 
-uint8_t ide_atapi_rs(const struct drive *d, uint32_t start, uint32_t count, void *buffer) {
+static uint8_t ide_atapi_rs(const struct drive *d, uint32_t start, uint32_t count, void *buffer) {
   //panic("IDE ATAPI reading not implemented yet");
   return 0;
 }
 
-uint8_t ide_atapi_ws(const struct drive *d, uint32_t start, uint32_t count, const void *buffer) {
+static uint8_t ide_atapi_ws(const struct drive *d, uint32_t start, uint32_t count, const void *buffer) {
   panic("IDE ATAPI writing not implemented yet");
   return 0;
 }
@@ -124,9 +112,7 @@ struct id_space {
   uint8_t skip2[512 - (120 + 4)];
 } __attribute__ ((__packed__ ));
 
-void vga_printsz(char *s);
-
-void test_drive(uint16_t base_port, uint16_t alt_port, bool slave) {
+static void test_drive(uint16_t base_port, uint16_t alt_port, bool slave) {
   if (n_ide_drives == MAX_IDE_DRIVES)
     panic("Maximum number of IDE drives reached.");