9os

commit 3d39ba576c033fe8c07954abcc5d9d7e2ef9a513
parent c649d3738ce82838bdd35eb61d7ec91c41231165
Author: Roberto Vargas <roberto.vargas@arm.com>
Date:   Tue, 19 Feb 2019 10:23:31 +0000

[drivers] Remove qchar

We are not going to use it.

Change-Id: Id3f5fa10dbebc4fb6cf0ab9401cb48833da7a715

Diffstat:
M
drivers/devuart.c
 | 
2
--
M
drivers/pl011.c
 | 
1
-
D
drivers/qchar.c
 | 
50
--------------------------------------------------
D
drivers/qchar.h
 | 
18
------------------
M
drivers/uart.h
 | 
1
-

5 files changed, 0 insertions(+), 72 deletions(-)
diff --git a/drivers/devuart.c b/drivers/devuart.c
@@ -7,7 +7,6 @@
 #include <string.h>
 
 #include "dev.h"
-#include "qchar.h"
 #include "uart.h"
 
 #define UARTSTATUS   128
@@ -296,7 +295,6 @@ uartlink(Uartphy *phy, Attr *attr)
 	char *cfg = NULL;
 
 	up = uartphy(phy);
-	/* init qc */
 	/* init up->mutex */
 
 	for (a = attr; a->key; a++) {
diff --git a/drivers/pl011.c b/drivers/pl011.c
@@ -2,7 +2,6 @@
 #include <rcode/9p.h>
 
 #include "dev.h"
-#include "qchar.h"
 #include "uart.h"
 
 enum phyregs {
diff --git a/drivers/qchar.c b/drivers/qchar.c
@@ -1,50 +0,0 @@
-#include <rcode/arch.h>
-#include "qchar.h"
-
-void
-qin(Qchar *qc, int c)
-{
-	int head;
-
-	head = (qc->head+1) % qc->size;
-
-	while (head == qc->tail)
-		sleep(qc);
-
-	qc->buff[head] = c;
-	qc->head = head;
-
-	return 1;
-}
-
-int
-qout(Qchar *qc)
-{
-	int c;
-
-	while (qc->head == qc->tail)
-		sleep(qc);
-
-	c = qc->tail;
-	qc->tail = (qc->tail+1) % qc->size;
-
-	return c;
-}
-
-Qchar *
-qchar(int siz)
-{
-	Qchar *qc;
-
-	if ((qc = alloc(sizeof(*qc) + siz)) == NULL)
-		panic("newqchar");
-	qc->size = siz;
-	qc->head = qc->tail = 0;
-
-	return qc;
-}
-
-void
-qflush(Qchar *qc)
-{
-}
diff --git a/drivers/qchar.h b/drivers/qchar.h
@@ -1,18 +0,0 @@
-typedef struct queue Qchar;
-
-struct queue {
-	int size;
-	atomic_t head;
-	atomic_t tail;
-
-	void *who;
-	void (*put)(void *who, unsigned char);
-	void (*get)(void *who, unsigned char);
-
-	unsigned char buf[];
-};
-
-extern void qflush(Qchar *qc);
-extern void qin(Qchar *qc, int c);
-extern int qout(Qchar *qc);
-extern Qchar *qchar(int siz);
diff --git a/drivers/uart.h b/drivers/uart.h
@@ -41,7 +41,6 @@ struct uart {
 	void *phydata;
 
 	mutex_t m;
-	Qchar *qc;
 	Uartphy *phy;
 };