When selected, the probe is handled in two steps, for example to
avoid lockdeps if request_module is used in the probe.
+source "sound/soc/sof/amd/Kconfig"
source "sound/soc/sof/imx/Kconfig"
source "sound/soc/sof/intel/Kconfig"
source "sound/soc/sof/xtensa/Kconfig"
obj-$(CONFIG_SND_SOC_SOF_INTEL_TOPLEVEL) += intel/
obj-$(CONFIG_SND_SOC_SOF_IMX_TOPLEVEL) += imx/
+obj-$(CONFIG_SND_SOC_SOF_AMD_TOPLEVEL) += amd/
obj-$(CONFIG_SND_SOC_SOF_XTENSA) += xtensa/
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+# This file is provided under a dual BSD/GPLv2 license. When using or
+# redistributing this file, you may do so under either license.
+#
+# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+
+config SND_SOC_SOF_AMD_TOPLEVEL
+ tristate "SOF support for AMD audio DSPs"
+ depends on X86 || COMPILE_TEST
+ help
+ This adds support for Sound Open Firmware for AMD platforms.
+ Say Y if you have such a device.
+ If unsure select "N".
+
+if SND_SOC_SOF_AMD_TOPLEVEL
+
+config SND_SOC_SOF_AMD_COMMON
+ tristate
+ select SND_SOC_SOF
+ help
+ This option is not user-selectable but automatically handled by
+ 'select' statements at a higher level
+
+config SND_SOC_SOF_AMD_RENOIR
+ tristate "SOF support for RENOIR"
+ select SND_SOC_SOF_AMD_COMMON
+ help
+ Select this option for SOF support on AMD Renoir platform
+
+endif
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+# This file is provided under a dual BSD/GPLv2 license. When using or
+# redistributing this file, you may do so under either license.
+#
+# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+
+snd-sof-amd-acp-objs := acp.o
+snd-sof-amd-renoir-objs := renoir.o
+
+obj-$(CONFIG_SND_SOC_SOF_AMD_COMMON) += snd-sof-amd-acp.o
+obj-$(CONFIG_SND_SOC_SOF_AMD_RENOIR) +=snd-sof-amd-renoir.o
--- /dev/null
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+ */
+
+#ifndef _ACP_DSP_IP_OFFSET_H
+#define _ACP_DSP_IP_OFFSET_H
+
+#define ACP_SOFT_RESET 0x1000
+
+/* Registers from ACP_PGFSM block */
+#define ACP_PGFSM_CONTROL 0x141C
+#define ACP_PGFSM_STATUS 0x1420
+
+#endif
--- /dev/null
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Authors: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
+// Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+
+/*
+ * Hardware interface for generic AMD ACP processor
+ */
+
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "../ops.h"
+#include "acp.h"
+#include "acp-dsp-offset.h"
+
+static int acp_power_on(struct snd_sof_dev *sdev)
+{
+ unsigned int val;
+ int ret;
+
+ val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_PGFSM_STATUS);
+
+ if (val == ACP_POWERED_ON)
+ return 0;
+
+ if (val & ACP_PGFSM_STATUS_MASK)
+ snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_PGFSM_CONTROL,
+ ACP_PGFSM_CNTL_POWER_ON_MASK);
+
+ ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_PGFSM_STATUS, val, !val,
+ ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US);
+ if (ret < 0)
+ dev_err(sdev->dev, "timeout in ACP_PGFSM_STATUS read\n");
+
+ return ret;
+}
+
+static int acp_reset(struct snd_sof_dev *sdev)
+{
+ unsigned int val;
+ int ret;
+
+ snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, ACP_ASSERT_RESET);
+
+ ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, val,
+ val & ACP_SOFT_RESET_DONE_MASK,
+ ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US);
+ if (ret < 0) {
+ dev_err(sdev->dev, "timeout asserting reset\n");
+ return ret;
+ }
+
+ snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, ACP_RELEASE_RESET);
+
+ ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, val, !val,
+ ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US);
+ if (ret < 0)
+ dev_err(sdev->dev, "timeout in releasing reset\n");
+
+ return ret;
+}
+
+static int acp_init(struct snd_sof_dev *sdev)
+{
+ int ret;
+
+ /* power on */
+ ret = acp_power_on(sdev);
+ if (ret) {
+ dev_err(sdev->dev, "ACP power on failed\n");
+ return ret;
+ }
+ /* Reset */
+ return acp_reset(sdev);
+}
+
+int amd_sof_acp_probe(struct snd_sof_dev *sdev)
+{
+ struct pci_dev *pci = to_pci_dev(sdev->dev);
+ struct acp_dev_data *adata;
+ unsigned int addr;
+
+ adata = devm_kzalloc(sdev->dev, sizeof(struct acp_dev_data),
+ GFP_KERNEL);
+ if (!adata)
+ return -ENOMEM;
+
+ adata->dev = sdev;
+ addr = pci_resource_start(pci, ACP_DSP_BAR);
+ sdev->bar[ACP_DSP_BAR] = devm_ioremap(sdev->dev, addr, pci_resource_len(pci, ACP_DSP_BAR));
+ if (!sdev->bar[ACP_DSP_BAR]) {
+ dev_err(sdev->dev, "ioremap error\n");
+ return -ENXIO;
+ }
+
+ pci_set_master(pci);
+
+ sdev->pdata->hw_pdata = adata;
+
+ return acp_init(sdev);
+}
+EXPORT_SYMBOL_NS(amd_sof_acp_probe, SND_SOC_SOF_AMD_COMMON);
+
+int amd_sof_acp_remove(struct snd_sof_dev *sdev)
+{
+ return acp_reset(sdev);
+}
+EXPORT_SYMBOL_NS(amd_sof_acp_remove, SND_SOC_SOF_AMD_COMMON);
+
+MODULE_DESCRIPTION("AMD ACP sof driver");
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+ */
+
+#ifndef __SOF_AMD_ACP_H
+#define __SOF_AMD_ACP_H
+
+#define ACP_DSP_BAR 0
+
+#define ACP_REG_POLL_INTERVAL 500
+#define ACP_REG_POLL_TIMEOUT_US 2000
+
+#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01
+#define ACP_PGFSM_STATUS_MASK 0x03
+#define ACP_POWERED_ON 0x00
+#define ACP_ASSERT_RESET 0x01
+#define ACP_RELEASE_RESET 0x00
+#define ACP_SOFT_RESET_DONE_MASK 0x00010001
+
+/* Common device data struct for ACP devices */
+struct acp_dev_data {
+ struct snd_sof_dev *dev;
+};
+
+/* ACP device probe/remove */
+int amd_sof_acp_probe(struct snd_sof_dev *sdev);
+int amd_sof_acp_remove(struct snd_sof_dev *sdev);
+
+extern const struct snd_sof_dsp_ops sof_renoir_ops;
+#endif
--- /dev/null
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+
+/*
+ * Hardware interface for Audio DSP on Renoir platform
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+
+#include "../ops.h"
+#include "acp.h"
+
+/* AMD Renoir DSP ops */
+const struct snd_sof_dsp_ops sof_renoir_ops = {
+ /* probe and remove */
+ .probe = amd_sof_acp_probe,
+ .remove = amd_sof_acp_remove,
+
+ /* Register IO */
+ .write = sof_io_write,
+ .read = sof_io_read,
+};
+EXPORT_SYMBOL(sof_renoir_ops);
+
+MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON);
+MODULE_DESCRIPTION("RENOIR SOF Driver");
+MODULE_LICENSE("Dual BSD/GPL");
projects / users / jedix / linux-maple.git / commitdiff