// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2011-2017, The Linux Foundation */ #include <linux/irq.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/interrupt.h> #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/clk.h> #include <linux/of.h> #include <linux/pm_runtime.h> #include "slimbus.h" /* Manager registers */ #define MGR_CFG … #define MGR_STATUS … #define MGR_INT_EN … #define MGR_INT_STAT … #define MGR_INT_CLR … #define MGR_TX_MSG … #define MGR_RX_MSG … #define MGR_IE_STAT … #define MGR_VE_STAT … #define MGR_CFG_ENABLE … /* Framer registers */ #define FRM_CFG … #define FRM_STAT … #define FRM_INT_EN … #define FRM_INT_STAT … #define FRM_INT_CLR … #define FRM_WAKEUP … #define FRM_CLKCTL_DONE … #define FRM_IE_STAT … #define FRM_VE_STAT … /* Interface registers */ #define INTF_CFG … #define INTF_STAT … #define INTF_INT_EN … #define INTF_INT_STAT … #define INTF_INT_CLR … #define INTF_IE_STAT … #define INTF_VE_STAT … /* Interrupt status bits */ #define MGR_INT_TX_NACKED_2 … #define MGR_INT_MSG_BUF_CONTE … #define MGR_INT_RX_MSG_RCVD … #define MGR_INT_TX_MSG_SENT … /* Framer config register settings */ #define FRM_ACTIVE … #define CLK_GEAR … #define ROOT_FREQ … #define REF_CLK_GEAR … #define INTR_WAKE … #define SLIM_MSG_ASM_FIRST_WORD(l, mt, mc, dt, ad) … #define SLIM_ROOT_FREQ … #define QCOM_SLIM_AUTOSUSPEND … /* MAX message size over control channel */ #define SLIM_MSGQ_BUF_LEN … #define QCOM_TX_MSGS … #define QCOM_RX_MSGS … #define QCOM_BUF_ALLOC_RETRIES … #define CFG_PORT(r, v) … /* V2 Component registers */ #define CFG_PORT_V2(r) … #define COMP_CFG_V2 … #define COMP_TRUST_CFG_V2 … /* V1 Component registers */ #define CFG_PORT_V1(r) … #define COMP_CFG_V1 … #define COMP_TRUST_CFG_V1 … /* Resource group info for manager, and non-ported generic device-components */ #define EE_MGR_RSC_GRP … #define EE_NGD_2 … #define EE_NGD_1 … struct slim_ctrl_buf { … }; struct qcom_slim_ctrl { … }; static void qcom_slim_queue_tx(struct qcom_slim_ctrl *ctrl, void *buf, u8 len, u32 tx_reg) { … } static void *slim_alloc_rxbuf(struct qcom_slim_ctrl *ctrl) { … } static void slim_ack_txn(struct qcom_slim_ctrl *ctrl, int err) { … } static irqreturn_t qcom_slim_handle_tx_irq(struct qcom_slim_ctrl *ctrl, u32 stat) { … } static irqreturn_t qcom_slim_handle_rx_irq(struct qcom_slim_ctrl *ctrl, u32 stat) { … } static irqreturn_t qcom_slim_interrupt(int irq, void *d) { … } static int qcom_clk_pause_wakeup(struct slim_controller *sctrl) { … } static void *slim_alloc_txbuf(struct qcom_slim_ctrl *ctrl, struct slim_msg_txn *txn, struct completion *done) { … } static int qcom_xfer_msg(struct slim_controller *sctrl, struct slim_msg_txn *txn) { … } static int qcom_set_laddr(struct slim_controller *sctrl, struct slim_eaddr *ead, u8 laddr) { … } static int slim_get_current_rxbuf(struct qcom_slim_ctrl *ctrl, void *buf) { … } static void qcom_slim_rxwq(struct work_struct *work) { … } static void qcom_slim_prg_slew(struct platform_device *pdev, struct qcom_slim_ctrl *ctrl) { … } static int qcom_slim_probe(struct platform_device *pdev) { … } static void qcom_slim_remove(struct platform_device *pdev) { … } /* * If PM_RUNTIME is not defined, these 2 functions become helper * functions to be called from system suspend/resume. */ #ifdef CONFIG_PM static int qcom_slim_runtime_suspend(struct device *device) { … } static int qcom_slim_runtime_resume(struct device *device) { … } #endif #ifdef CONFIG_PM_SLEEP static int qcom_slim_suspend(struct device *dev) { … } static int qcom_slim_resume(struct device *dev) { … } #endif /* CONFIG_PM_SLEEP */ static const struct dev_pm_ops qcom_slim_dev_pm_ops = …; static const struct of_device_id qcom_slim_dt_match[] = …; MODULE_DEVICE_TABLE(of, qcom_slim_dt_match); static struct platform_driver qcom_slim_driver = …; module_platform_driver(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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