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[Qemu-devel] [PATCH] qtest: Add set_irq_in command to set IRQ/GPIO level
From: |
Steffen Görtz |
Subject: |
[Qemu-devel] [PATCH] qtest: Add set_irq_in command to set IRQ/GPIO level |
Date: |
Wed, 15 Aug 2018 22:09:22 +0200 |
Adds a new qtest command "set_irq_in" which allows
to set qemu gpio lines to a given level.
Based on https://lists.gnu.org/archive/html/qemu-devel/2012-12/msg02363.html
which never got merged.
Signed-off-by: Steffen Görtz <address@hidden>
Originally-by: Matthew Ogilvie <address@hidden>
---
qtest.c | 37 +++++++++++++++++++++++++++++++++++++
tests/libqtest.c | 10 ++++++++++
tests/libqtest.h | 28 ++++++++++++++++++++++++++++
3 files changed, 75 insertions(+)
diff --git a/qtest.c b/qtest.c
index 69b9e9962b..92118628ce 100644
--- a/qtest.c
+++ b/qtest.c
@@ -164,6 +164,14 @@ static bool qtest_opened;
* where NUM is an IRQ number. For the PC, interrupts can be intercepted
* simply with "irq_intercept_in ioapic" (note that IRQ0 comes out with
* NUM=0 even though it is remapped to GSI 2).
+ *
+ * Setting interrupt level:
+ *
+ * > set_irq_in QOM-PATH IRQ LEVEL
+ * < OK
+ *
+ * Forcibly set the given interrupt pin to the given level.
+ *
*/
static int hex2nib(char ch)
@@ -326,7 +334,36 @@ static void qtest_process_command(CharBackend *chr, gchar
**words)
irq_intercept_dev = dev;
qtest_send_prefix(chr);
qtest_send(chr, "OK\n");
+ } else if (strcmp(words[0], "set_irq_in") == 0) {
+ DeviceState *dev;
+ qemu_irq irq;
+ char *name;
+ int num;
+ int level;
+ g_assert(words[1] && words[2] && words[3] && words[4]);
+
+ dev = DEVICE(object_resolve_path(words[1], NULL));
+ if (!dev) {
+ qtest_send_prefix(chr);
+ qtest_send(chr, "FAIL Unknown device\n");
+ return;
+ }
+
+ if (strcmp(words[2], "unnamed-gpio-in") == 0) {
+ name = NULL;
+ } else {
+ name = words[2];
+ }
+
+ num = qemu_strtol(words[3], NULL, 0);
+ level = qemu_strtol(words[4], NULL, 0);
+
+ irq = qdev_get_gpio_in_named(dev, name, num);
+
+ qemu_set_irq(irq, level);
+ qtest_send_prefix(chr);
+ qtest_send(chr, "OK\n");
} else if (strcmp(words[0], "outb") == 0 ||
strcmp(words[0], "outw") == 0 ||
strcmp(words[0], "outl") == 0) {
diff --git a/tests/libqtest.c b/tests/libqtest.c
index 098af6aec4..62dd447164 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -718,6 +718,16 @@ void qtest_irq_intercept_in(QTestState *s, const char
*qom_path)
qtest_rsp(s, 0);
}
+void qtest_set_irq_in(QTestState *s, const char *qom_path, const char *name,
+ int num, int level)
+{
+ if (!name) {
+ name = "unnamed-gpio-in";
+ }
+ qtest_sendf(s, "set_irq_in %s %s %d %d\n", qom_path, name, num, level);
+ qtest_rsp(s, 0);
+}
+
static void qtest_out(QTestState *s, const char *cmd, uint16_t addr, uint32_t
value)
{
qtest_sendf(s, "%s 0x%x 0x%x\n", cmd, addr, value);
diff --git a/tests/libqtest.h b/tests/libqtest.h
index ac52872cbe..5e4c97e775 100644
--- a/tests/libqtest.h
+++ b/tests/libqtest.h
@@ -211,6 +211,19 @@ void qtest_irq_intercept_in(QTestState *s, const char
*string);
*/
void qtest_irq_intercept_out(QTestState *s, const char *string);
+/**
+ * qtest_set_irq_in:
+ * @s: QTestState instance to operate on.
+ * @string: QOM path of a device
+ * @name: IRQ name
+ * @irq: IRQ number
+ * @level: IRQ level
+ *
+ * Force given device/irq GPIO-in pin to the given level.
+ */
+void qtest_set_irq_in(QTestState *s, const char *string, const char *name,
+ int irq, int level);
+
/**
* qtest_outb:
* @s: #QTestState instance to operate on.
@@ -661,6 +674,21 @@ static inline void irq_intercept_out(const char *string)
qtest_irq_intercept_out(global_qtest, string);
}
+/**
+ * qtest_set_irq_in:
+ * @string: QOM path of a device
+ * @name: IRQ name
+ * @irq: IRQ number
+ * @level: IRQ level
+ *
+ * Force given device/IRQ GPIO-in pin to the given level.
+ */
+static inline void set_irq_in(const char *string, const char *name,
+ int irq, int level)
+{
+ qtest_set_irq_in(global_qtest, string, name, irq, level);
+}
+
/**
* outb:
* @addr: I/O port to write to.
--
2.18.0
- [Qemu-devel] [PATCH] qtest: Add set_irq_in command to set IRQ/GPIO level,
Steffen Görtz <=