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From:   Kalle Valo <kvalo@kernel.org>
To:     linux-wireless@vger.kernel.org
Cc:     ath12k@lists.infradead.org
Subject: [PATCH v2 36/50] wifi: ath12k: add pci.h
Date:   Wed, 16 Nov 2022 18:38:48 +0200
Message-Id: <20221116163902.24996-37-kvalo@kernel.org>
In-Reply-To: <20221116163902.24996-1-kvalo@kernel.org>
References: <20221116163902.24996-1-kvalo@kernel.org>
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From: Kalle Valo <quic_kvalo@quicinc.com>

(Patches split into one patch per file for easier review, but the final
commit will be one big patch. See the cover letter for more info.)

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/pci.h | 135 ++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/pci.h b/drivers/net/wireless/ath/ath12k/pci.h
new file mode 100644
index 000000000000..0d9e40ab31f2
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/pci.h
@@ -0,0 +1,135 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (c) 2019-2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+#ifndef ATH12K_PCI_H
+#define ATH12K_PCI_H
+
+#include <linux/mhi.h>
+
+#include "core.h"
+
+#define PCIE_SOC_GLOBAL_RESET			0x3008
+#define PCIE_SOC_GLOBAL_RESET_V			1
+
+#define WLAON_WARM_SW_ENTRY			0x1f80504
+#define WLAON_SOC_RESET_CAUSE_REG		0x01f8060c
+
+#define PCIE_Q6_COOKIE_ADDR			0x01f80500
+#define PCIE_Q6_COOKIE_DATA			0xc0000000
+
+/* register to wake the UMAC from power collapse */
+#define PCIE_SCRATCH_0_SOC_PCIE_REG		0x4040
+
+/* register used for handshake mechanism to validate UMAC is awake */
+#define PCIE_SOC_WAKE_PCIE_LOCAL_REG		0x3004
+
+#define PCIE_PCIE_PARF_LTSSM			0x1e081b0
+#define PARM_LTSSM_VALUE			0x111
+
+#define GCC_GCC_PCIE_HOT_RST			0x1e38338
+#define GCC_GCC_PCIE_HOT_RST_VAL		0x10
+
+#define PCIE_PCIE_INT_ALL_CLEAR			0x1e08228
+#define PCIE_SMLH_REQ_RST_LINK_DOWN		0x2
+#define PCIE_INT_CLEAR_ALL			0xffffffff
+
+#define PCIE_QSERDES_COM_SYSCLK_EN_SEL_REG(ab) \
+	((ab)->hw_params->regs->pcie_qserdes_sysclk_en_sel)
+#define PCIE_QSERDES_COM_SYSCLK_EN_SEL_VAL	0x10
+#define PCIE_QSERDES_COM_SYSCLK_EN_SEL_MSK	0xffffffff
+#define PCIE_PCS_OSC_DTCT_CONFIG1_REG(ab) \
+	((ab)->hw_params->regs->pcie_pcs_osc_dtct_config_base)
+#define PCIE_PCS_OSC_DTCT_CONFIG1_VAL		0x02
+#define PCIE_PCS_OSC_DTCT_CONFIG2_REG(ab) \
+	((ab)->hw_params->regs->pcie_pcs_osc_dtct_config_base + 0x4)
+#define PCIE_PCS_OSC_DTCT_CONFIG2_VAL		0x52
+#define PCIE_PCS_OSC_DTCT_CONFIG4_REG(ab) \
+	((ab)->hw_params->regs->pcie_pcs_osc_dtct_config_base + 0xc)
+#define PCIE_PCS_OSC_DTCT_CONFIG4_VAL		0xff
+#define PCIE_PCS_OSC_DTCT_CONFIG_MSK		0x000000ff
+
+#define WLAON_QFPROM_PWR_CTRL_REG		0x01f8031c
+#define QFPROM_PWR_CTRL_VDD4BLOW_MASK		0x4
+
+#define PCI_BAR_WINDOW0_BASE	0x1E00000
+#define PCI_BAR_WINDOW0_END	0x1E7FFFC
+#define PCI_SOC_RANGE_MASK	0x3FFF
+#define PCI_SOC_PCI_REG_BASE	0x1E04000
+#define PCI_SOC_PCI_REG_END	0x1E07FFC
+#define PCI_PARF_BASE		0x1E08000
+#define PCI_PARF_END		0x1E0BFFC
+#define PCI_MHIREGLEN_REG	0x1E0E100
+#define PCI_MHI_REGION_END	0x1E0EFFC
+#define QRTR_PCI_DOMAIN_NR_MASK		GENMASK(7, 4)
+#define QRTR_PCI_BUS_NUMBER_MASK	GENMASK(3, 0)
+
+#define ATH12K_PCI_SOC_HW_VERSION_1	1
+#define ATH12K_PCI_SOC_HW_VERSION_2	2
+
+struct ath12k_msi_user {
+	const char *name;
+	int num_vectors;
+	u32 base_vector;
+};
+
+struct ath12k_msi_config {
+	int total_vectors;
+	int total_users;
+	const struct ath12k_msi_user *users;
+};
+
+enum ath12k_pci_flags {
+	ATH12K_PCI_FLAG_INIT_DONE,
+	ATH12K_PCI_FLAG_IS_MSI_64,
+	ATH12K_PCI_ASPM_RESTORE,
+};
+
+struct ath12k_pci {
+	struct pci_dev *pdev;
+	struct ath12k_base *ab;
+	u16 dev_id;
+	char amss_path[100];
+	u32 msi_ep_base_data;
+	struct mhi_controller *mhi_ctrl;
+	const struct ath12k_msi_config *msi_config;
+	unsigned long mhi_state;
+	u32 register_window;
+
+	/* protects register_window above */
+	spinlock_t window_lock;
+
+	/* enum ath12k_pci_flags */
+	unsigned long flags;
+	u16 link_ctl;
+};
+
+static inline struct ath12k_pci *ath12k_pci_priv(struct ath12k_base *ab)
+{
+	return (struct ath12k_pci *)ab->drv_priv;
+}
+
+int ath12k_pci_get_user_msi_assignment(struct ath12k_base *ab, char *user_name,
+				       int *num_vectors, u32 *user_base_data,
+				       u32 *base_vector);
+int ath12k_pci_get_msi_irq(struct device *dev, unsigned int vector);
+void ath12k_pci_write32(struct ath12k_base *ab, u32 offset, u32 value);
+u32 ath12k_pci_read32(struct ath12k_base *ab, u32 offset);
+int ath12k_pci_map_service_to_pipe(struct ath12k_base *ab, u16 service_id,
+				   u8 *ul_pipe, u8 *dl_pipe);
+void ath12k_pci_get_msi_address(struct ath12k_base *ab, u32 *msi_addr_lo,
+				u32 *msi_addr_hi);
+void ath12k_pci_get_ce_msi_idx(struct ath12k_base *ab, u32 ce_id,
+			       u32 *msi_idx);
+void ath12k_pci_hif_ce_irq_enable(struct ath12k_base *ab);
+void ath12k_pci_hif_ce_irq_disable(struct ath12k_base *ab);
+void ath12k_pci_ext_irq_enable(struct ath12k_base *ab);
+void ath12k_pci_ext_irq_disable(struct ath12k_base *ab);
+int ath12k_pci_hif_suspend(struct ath12k_base *ab);
+int ath12k_pci_hif_resume(struct ath12k_base *ab);
+void ath12k_pci_stop(struct ath12k_base *ab);
+int ath12k_pci_start(struct ath12k_base *ab);
+int ath12k_pci_power_up(struct ath12k_base *ab);
+void ath12k_pci_power_down(struct ath12k_base *ab);
+#endif /* ATH12K_PCI_H */