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path: root/drivers/tty/hvc
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Diffstat (limited to 'drivers/tty/hvc')
-rw-r--r--drivers/tty/hvc/Kconfig3
-rw-r--r--drivers/tty/hvc/hvc_console.c6
-rw-r--r--drivers/tty/hvc/hvcs.c6
-rw-r--r--drivers/tty/hvc/hvsi.c32
4 files changed, 22 insertions, 25 deletions
diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index f47b734c6a7a..8902f9b4df71 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -1,3 +1,5 @@
+if TTY
+
config HVC_DRIVER
bool
help
@@ -119,3 +121,4 @@ config HVCS
which will also be compiled when this driver is built as a
module.
+endif # TTY
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 13ee53bd0bf6..eb255e807c06 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -629,7 +629,7 @@ int hvc_poll(struct hvc_struct *hp)
/* Read data if any */
for (;;) {
- int count = tty_buffer_request_room(tty, N_INBUF);
+ int count = tty_buffer_request_room(&hp->port, N_INBUF);
/* If flip is full, just reschedule a later read */
if (count == 0) {
@@ -672,7 +672,7 @@ int hvc_poll(struct hvc_struct *hp)
}
}
#endif /* CONFIG_MAGIC_SYSRQ */
- tty_insert_flip_char(tty, buf[i], 0);
+ tty_insert_flip_char(&hp->port, buf[i], 0);
}
read_total += n;
@@ -691,7 +691,7 @@ int hvc_poll(struct hvc_struct *hp)
a minimum for performance. */
timeout = MIN_TIMEOUT;
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&hp->port);
}
tty_kref_put(tty);
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 877635733952..1956593ee89d 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -609,11 +609,11 @@ static int hvcs_io(struct hvcs_struct *hvcsd)
/* remove the read masks */
hvcsd->todo_mask &= ~(HVCS_READ_MASK);
- if (tty_buffer_request_room(tty, HVCS_BUFF_LEN) >= HVCS_BUFF_LEN) {
+ if (tty_buffer_request_room(&hvcsd->port, HVCS_BUFF_LEN) >= HVCS_BUFF_LEN) {
got = hvc_get_chars(unit_address,
&buf[0],
HVCS_BUFF_LEN);
- tty_insert_flip_string(tty, buf, got);
+ tty_insert_flip_string(&hvcsd->port, buf, got);
}
/* Give the TTY time to process the data we just sent. */
@@ -623,7 +623,7 @@ static int hvcs_io(struct hvcs_struct *hvcsd)
spin_unlock_irqrestore(&hvcsd->lock, flags);
/* This is synch because tty->low_latency == 1 */
if(got)
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&hvcsd->port);
if (!got) {
/* Do this _after_ the flip_buffer_push */
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index 68357a6e4de9..ef95a154854a 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -329,8 +329,7 @@ static void hvsi_recv_query(struct hvsi_struct *hp, uint8_t *packet)
}
}
-static void hvsi_insert_chars(struct hvsi_struct *hp, struct tty_struct *tty,
- const char *buf, int len)
+static void hvsi_insert_chars(struct hvsi_struct *hp, const char *buf, int len)
{
int i;
@@ -346,7 +345,7 @@ static void hvsi_insert_chars(struct hvsi_struct *hp, struct tty_struct *tty,
continue;
}
#endif /* CONFIG_MAGIC_SYSRQ */
- tty_insert_flip_char(tty, c, 0);
+ tty_insert_flip_char(&hp->port, c, 0);
}
}
@@ -359,8 +358,7 @@ static void hvsi_insert_chars(struct hvsi_struct *hp, struct tty_struct *tty,
* revisited.
*/
#define TTY_THRESHOLD_THROTTLE 128
-static bool hvsi_recv_data(struct hvsi_struct *hp, struct tty_struct *tty,
- const uint8_t *packet)
+static bool hvsi_recv_data(struct hvsi_struct *hp, const uint8_t *packet)
{
const struct hvsi_header *header = (const struct hvsi_header *)packet;
const uint8_t *data = packet + sizeof(struct hvsi_header);
@@ -377,7 +375,7 @@ static bool hvsi_recv_data(struct hvsi_struct *hp, struct tty_struct *tty,
datalen = TTY_THRESHOLD_THROTTLE;
}
- hvsi_insert_chars(hp, tty, data, datalen);
+ hvsi_insert_chars(hp, data, datalen);
if (overflow > 0) {
/*
@@ -438,9 +436,7 @@ static int hvsi_load_chunk(struct hvsi_struct *hp, struct tty_struct *tty,
case VS_DATA_PACKET_HEADER:
if (!is_open(hp))
break;
- if (tty == NULL)
- break; /* no tty buffer to put data in */
- flip = hvsi_recv_data(hp, tty, packet);
+ flip = hvsi_recv_data(hp, packet);
break;
case VS_CONTROL_PACKET_HEADER:
hvsi_recv_control(hp, packet, tty, handshake);
@@ -469,17 +465,17 @@ static int hvsi_load_chunk(struct hvsi_struct *hp, struct tty_struct *tty,
compact_inbuf(hp, packet);
if (flip)
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&hp->port);
return 1;
}
-static void hvsi_send_overflow(struct hvsi_struct *hp, struct tty_struct *tty)
+static void hvsi_send_overflow(struct hvsi_struct *hp)
{
pr_debug("%s: delivering %i bytes overflow\n", __func__,
hp->n_throttle);
- hvsi_insert_chars(hp, tty, hp->throttle_buf, hp->n_throttle);
+ hvsi_insert_chars(hp, hp->throttle_buf, hp->n_throttle);
hp->n_throttle = 0;
}
@@ -514,8 +510,8 @@ static irqreturn_t hvsi_interrupt(int irq, void *arg)
if (tty && hp->n_throttle && !test_bit(TTY_THROTTLED, &tty->flags)) {
/* we weren't hung up and we weren't throttled, so we can
* deliver the rest now */
- hvsi_send_overflow(hp, tty);
- tty_flip_buffer_push(tty);
+ hvsi_send_overflow(hp);
+ tty_flip_buffer_push(&hp->port);
}
spin_unlock_irqrestore(&hp->lock, flags);
@@ -1001,8 +997,8 @@ static void hvsi_unthrottle(struct tty_struct *tty)
spin_lock_irqsave(&hp->lock, flags);
if (hp->n_throttle) {
- hvsi_send_overflow(hp, tty);
- tty_flip_buffer_push(tty);
+ hvsi_send_overflow(hp);
+ tty_flip_buffer_push(&hp->port);
}
spin_unlock_irqrestore(&hp->lock, flags);
@@ -1187,9 +1183,7 @@ static int __init hvsi_console_init(void)
hvsi_wait = poll_for_state; /* no irqs yet; must poll */
/* search device tree for vty nodes */
- for (vty = of_find_compatible_node(NULL, "serial", "hvterm-protocol");
- vty != NULL;
- vty = of_find_compatible_node(vty, "serial", "hvterm-protocol")) {
+ for_each_compatible_node(vty, "serial", "hvterm-protocol") {
struct hvsi_struct *hp;
const uint32_t *vtermno, *irq;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 14:45:15 +0000