On 12/14/2017 11:03 PM, srinivas.kandagatla@xxxxxxxxxx wrote:
From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
This patch adds support to core apr service, which is used to query
status of other static and dynamic services on the dsp.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
sound/soc/qcom/Kconfig | 5 +
sound/soc/qcom/qdsp6/Makefile | 1 +
sound/soc/qcom/qdsp6/q6core.c | 227 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 233 insertions(+)
create mode 100644 sound/soc/qcom/qdsp6/q6core.c
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index 7ebdb879a8a3..121b9c957024 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -56,11 +56,16 @@ config SND_SOC_QDSP6_ASM
tristate
default n
+config SND_SOC_QDSP6_CORE
+ tristate
+ default n
+
config SND_SOC_QDSP6
tristate "SoC ALSA audio driver for QDSP6"
select SND_SOC_QDSP6_AFE
select SND_SOC_QDSP6_ADM
select SND_SOC_QDSP6_ASM
+ select SND_SOC_QDSP6_CORE
help
To add support for MSM QDSP6 Soc Audio.
This will enable sound soc platform specific
diff --git a/sound/soc/qcom/qdsp6/Makefile b/sound/soc/qcom/qdsp6/Makefile
index 49dd3ccab27b..ad7f10691e54 100644
--- a/sound/soc/qcom/qdsp6/Makefile
+++ b/sound/soc/qcom/qdsp6/Makefile
@@ -1,3 +1,4 @@
obj-$(CONFIG_SND_SOC_QDSP6_AFE) += q6afe.o
obj-$(CONFIG_SND_SOC_QDSP6_ADM) += q6adm.o
obj-$(CONFIG_SND_SOC_QDSP6_ASM) += q6asm.o
+obj-$(CONFIG_SND_SOC_QDSP6_CORE) += q6core.o
diff --git a/sound/soc/qcom/qdsp6/q6core.c b/sound/soc/qcom/qdsp6/q6core.c
new file mode 100644
index 000000000000..d4e2dbc62489
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/q6core.c
@@ -0,0 +1,227 @@
+/* SPDX-License-Identifier: GPL-2.0
+* Copyright (c) 2017, Linaro Limited
+*/
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/jiffies.h>
[..]
+
+ dev_set_drvdata(&adev->dev, core);
+
+ core->adev = adev;
+ init_waitqueue_head(&core->wait);
+
+ do {
+ if (!q6core_is_adsp_ready(core)) {
+ dev_info(&adev->dev, "ADSP Audio isn't ready\n");
+ } else {
+ dev_info(&adev->dev, "ADSP Audio is ready\n");
+
If q6core_is_adsp_ready() return failure, then we should not call and
ADSP API.
+ ret = q6core_get_svc_versions(core);
+ if (!ret)
+ q6core_add_static_services(core);
+
+ break;
+ }
+ } while (time_after(timeout, jiffies));
+
I think we should defer probe if q6core_is_adsp_ready() returns failure
and timeouts.
+ return ret;
+}
+
+static int q6core_exit(struct apr_device *adev)
+{
+ return 0;
+}
+
+static const struct apr_device_id core_id[] = {
+ {"Q6CORE", APR_DOMAIN_ADSP, APR_SVC_ADSP_CORE, APR_CLIENT_AUDIO},
+ { },
+};
+
+static struct apr_driver qcom_q6core_driver = {
+ .probe = q6core_probe,
+ .remove = q6core_exit,
+ .callback = core_callback,
+ .id_table = core_id,
+ .driver = {
+ .name = "qcom-q6core",
+ },
+};
+
+module_apr_driver(qcom_q6core_driver);
+
+MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx");
+MODULE_DESCRIPTION("q6 core");
+MODULE_LICENSE("GPL v2");
--
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