[PATCH v3 03/25] ASoC: qcom: qdsp6: Add common qdsp6 helper functions

srinivas.kandagatla
2018-02-13T17:01:29Z

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

This patch adds some common helper functions like translating dsp error
to linux error codes and channel mappings etc.

These functions are used in all the following qdsp6 drivers.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
sound/soc/qcom/Kconfig | 14 ++++++
sound/soc/qcom/qdsp6/Makefile | 1 +
sound/soc/qcom/qdsp6/q6dsp-common.c | 67 +++++++++++++++++++++++++
sound/soc/qcom/qdsp6/q6dsp-common.h | 24 +++++++++
sound/soc/qcom/qdsp6/q6dsp-errno.h | 97 +++++++++++++++++++++++++++++++++++++
5 files changed, 203 insertions(+)
create mode 100644 sound/soc/qcom/qdsp6/Makefile
create mode 100644 sound/soc/qcom/qdsp6/q6dsp-common.c
create mode 100644 sound/soc/qcom/qdsp6/q6dsp-common.h
create mode 100644 sound/soc/qcom/qdsp6/q6dsp-errno.h

diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index 8ec9a074b38b..b01f347b427d 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -43,3 +43,17 @@ config SND_SOC_APQ8016_SBC
Support for Qualcomm Technologies LPASS audio block in
APQ8016 SOC-based systems.
Say Y if you want to use audio devices on MI2S.
+
+config SND_SOC_QDSP6_COMMON
+ tristate
+ default n
+
+config SND_SOC_QDSP6
+ tristate "SoC ALSA audio driver for QDSP6"
+ depends on QCOM_APR && HAS_DMA
+ select SND_SOC_QDSP6_COMMON
+ help
+ To add support for MSM QDSP6 Soc Audio.
+ This will enable sound soc platform specific
+ audio drivers. This includes q6asm, q6adm,
+ q6afe interfaces to DSP using apr.
diff --git a/sound/soc/qcom/qdsp6/Makefile b/sound/soc/qcom/qdsp6/Makefile
new file mode 100644
index 000000000000..accebdb49306
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_SND_SOC_QDSP6_COMMON) += q6dsp-common.o
diff --git a/sound/soc/qcom/qdsp6/q6dsp-common.c b/sound/soc/qcom/qdsp6/q6dsp-common.c
new file mode 100644
index 000000000000..3fe5b7942c4c
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/q6dsp-common.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2011-2017, The Linux Foundation
+ * Copyright (c) 2018, Linaro Limited
+ */
+#include "q6dsp-common.h"
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+
+int q6dsp_map_channels(u8 ch_map[PCM_FORMAT_MAX_NUM_CHANNEL], int ch)
+{
+ memset(ch_map, 0, PCM_FORMAT_MAX_NUM_CHANNEL);
+
+ switch (ch) {
+ case 1:
+ ch_map[0] = PCM_CHANNEL_FC;
+ break;
+ case 2:
+ ch_map[0] = PCM_CHANNEL_FL;
+ ch_map[1] = PCM_CHANNEL_FR;
+ break;
+ case 3:
+ ch_map[0] = PCM_CHANNEL_FL;
+ ch_map[1] = PCM_CHANNEL_FR;
+ ch_map[2] = PCM_CHANNEL_FC;
+ break;
+ case 4:
+ ch_map[0] = PCM_CHANNEL_FL;
+ ch_map[1] = PCM_CHANNEL_FR;
+ ch_map[2] = PCM_CHANNEL_LS;
+ ch_map[3] = PCM_CHANNEL_RS;
+ break;
+ case 5:
+ ch_map[0] = PCM_CHANNEL_FL;
+ ch_map[1] = PCM_CHANNEL_FR;
+ ch_map[2] = PCM_CHANNEL_FC;
+ ch_map[3] = PCM_CHANNEL_LS;
+ ch_map[4] = PCM_CHANNEL_RS;
+ break;
+ case 6:
+ ch_map[0] = PCM_CHANNEL_FL;
+ ch_map[1] = PCM_CHANNEL_FR;
+ ch_map[2] = PCM_CHANNEL_LFE;
+ ch_map[3] = PCM_CHANNEL_FC;
+ ch_map[4] = PCM_CHANNEL_LS;
+ ch_map[5] = PCM_CHANNEL_RS;
+ break;
+ case 8:
+ ch_map[0] = PCM_CHANNEL_FL;
+ ch_map[1] = PCM_CHANNEL_FR;
+ ch_map[2] = PCM_CHANNEL_LFE;
+ ch_map[3] = PCM_CHANNEL_FC;
+ ch_map[4] = PCM_CHANNEL_LS;
+ ch_map[5] = PCM_CHANNEL_RS;
+ ch_map[6] = PCM_CHANNEL_LB;
+ ch_map[7] = PCM_CHANNEL_RB;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(q6dsp_map_channels);
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/qcom/qdsp6/q6dsp-common.h b/sound/soc/qcom/qdsp6/q6dsp-common.h
new file mode 100644
index 000000000000..32386f4a6432
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/q6dsp-common.h
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#ifndef __Q6DSP_COMMON_H__
+#define __Q6DSP_COMMON_H__
+
+#include <linux/kernel.h>
+
+#define PCM_FORMAT_MAX_NUM_CHANNEL 8
+#define PCM_CHANNEL_NULL 0
+
+#define PCM_CHANNEL_FL 1 /* Front left channel. */
+#define PCM_CHANNEL_FR 2 /* Front right channel. */
+#define PCM_CHANNEL_FC 3 /* Front center channel. */
+#define PCM_CHANNEL_LS 4 /* Left surround channel. */
+#define PCM_CHANNEL_RS 5 /* Right surround channel. */
+#define PCM_CHANNEL_LFE 6 /* Low frequency effect channel. */
+#define PCM_CHANNEL_CS 7 /* Center surround channel; Rear center ch */
+#define PCM_CHANNEL_LB 8 /* Left back channel; Rear left channel. */
+#define PCM_CHANNEL_RB 9 /* Right back channel; Rear right channel. */
+#define PCM_CHANNELS 10 /* Top surround channel. */
+
+int q6dsp_map_channels(u8 ch_map[PCM_FORMAT_MAX_NUM_CHANNEL], int ch);
+
+#endif /* __Q6DSP_COMMON_H__ */
diff --git a/sound/soc/qcom/qdsp6/q6dsp-errno.h b/sound/soc/qcom/qdsp6/q6dsp-errno.h
new file mode 100644
index 000000000000..763c19bb4a13
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/q6dsp-errno.h
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#ifndef __Q6DSP_ERR_NO_H__
+#define __Q6DSP_ERR_NO_H__
+#include <linux/kernel.h>
+
+/* Success. The operation completed with no errors. */
+#define ADSP_EOK 0x00000000
+/* General failure. */
+#define ADSP_EFAILED 0x00000001
+/* Bad operation parameter. */
+#define ADSP_EBADPARAM 0x00000002
+/* Unsupported routine or operation. */
+#define ADSP_EUNSUPPORTED 0x00000003
+/* Unsupported version. */
+#define ADSP_EVERSION 0x00000004
+/* Unexpected problem encountered. */
+#define ADSP_EUNEXPECTED 0x00000005
+/* Unhandled problem occurred. */
+#define ADSP_EPANIC 0x00000006
+/* Unable to allocate resource. */
+#define ADSP_ENORESOURCE 0x00000007
+/* Invalid handle. */
+#define ADSP_EHANDLE 0x00000008
+/* Operation is already processed. */
+#define ADSP_EALREADY 0x00000009
+/* Operation is not ready to be processed. */
+#define ADSP_ENOTREADY 0x0000000A
+/* Operation is pending completion. */
+#define ADSP_EPENDING 0x0000000B
+/* Operation could not be accepted or processed. */
+#define ADSP_EBUSY 0x0000000C
+/* Operation aborted due to an error. */
+#define ADSP_EABORTED 0x0000000D
+/* Operation preempted by a higher priority. */
+#define ADSP_EPREEMPTED 0x0000000E
+/* Operation requests intervention to complete. */
+#define ADSP_ECONTINUE 0x0000000F
+/* Operation requests immediate intervention to complete. */
+#define ADSP_EIMMEDIATE 0x00000010
+/* Operation is not implemented. */
+#define ADSP_ENOTIMPL 0x00000011
+/* Operation needs more data or resources. */
+#define ADSP_ENEEDMORE 0x00000012
+/* Operation does not have memory. */
+#define ADSP_ENOMEMORY 0x00000014
+/* Item does not exist. */
+#define ADSP_ENOTEXIST 0x00000015
+/* Max count for adsp error code sent to HLOS*/
+
+struct q6dsp_err_code {
+ int lnx_err_code;
+ char *adsp_err_str;
+};
+
+static struct q6dsp_err_code q6dsp_err_codes[] = {
+ [ADSP_EFAILED] = { -ENOTRECOVERABLE, "ADSP_EFAILED"},
+ [ADSP_EBADPARAM] = { -EINVAL, "ADSP_EBADPARAM"},
+ [ADSP_EUNSUPPORTED] = { -ENOSYS, "ADSP_EUNSUPPORTED"},
+ [ADSP_EVERSION] = { -ENOPROTOOPT, "ADSP_EVERSION"},
+ [ADSP_EUNEXPECTED] = { -ENOTRECOVERABLE, "ADSP_EUNEXPECTED"},
+ [ADSP_EPANIC] = { -ENOTRECOVERABLE, "ADSP_EPANIC"},
+ [ADSP_ENORESOURCE] = { -ENOSPC, "ADSP_ENORESOURCE"},
+ [ADSP_EHANDLE] = { -EBADR, "ADSP_EHANDLE"},
+ [ADSP_EALREADY] = { -EALREADY, "ADSP_EALREADY"},
+ [ADSP_ENOTREADY] = { -EPERM, "ADSP_ENOTREADY"},
+ [ADSP_EPENDING] = { -EINPROGRESS, "ADSP_EPENDING"},
+ [ADSP_EBUSY] = { -EBUSY, "ADSP_EBUSY"},
+ [ADSP_EABORTED] = { -ECANCELED, "ADSP_EABORTED"},
+ [ADSP_EPREEMPTED] = { -EAGAIN, "ADSP_EPREEMPTED"},
+ [ADSP_ECONTINUE] = { -EAGAIN, "ADSP_ECONTINUE"},
+ [ADSP_EIMMEDIATE] = { -EAGAIN, "ADSP_EIMMEDIATE"},
+ [ADSP_ENOTIMPL] = { -EAGAIN, "ADSP_ENOTIMPL"},
+ [ADSP_ENEEDMORE] = { -ENODATA, "ADSP_ENEEDMORE"},
+ [ADSP_ENOMEMORY] = { -EINVAL, "ADSP_ENOMEMORY"},
+ [ADSP_ENOTEXIST] = { -ENOENT, "ADSP_ENOTEXIST"},
+};
+
+static inline int q6dsp_errno(u32 error)
+{
+ int ret = -EINVAL;
+
+ if (error <= ARRAY_SIZE(q6dsp_err_codes))
+ ret = q6dsp_err_codes[error].lnx_err_code;
+
+ return ret;
+}
+
+static inline char *q6dsp_strerror(u32 error)
+{
+ if (error <= ARRAY_SIZE(q6dsp_err_codes))
+ return q6dsp_err_codes[error].adsp_err_str;
+
+ return "ADSP_ERR_MAX";
+}
+
+#endif /*__Q6DSP_ERR_NO_H__ */
--
2.15.1