[PATCH 36/50] wifi: ath12k: add pci.h

Kalle Valo
2022-08-12T16:09:49Z

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 | 132 ++++++++++++++++++++++++++++++++++
1 file changed, 132 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..eb9a0c9b375f
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/pci.h
@@ -0,0 +1,132 @@
+/* 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)
+
+struct ath12k_msi_user {
+ char *name;
+ int num_vectors;
+ u32 base_vector;
+};
+
+struct ath12k_msi_config {
+ int total_vectors;
+ int total_users;
+ 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 */