diff options
Diffstat (limited to 'drivers/net/wwan/t7xx/t7xx_modem_ops.h')
| -rw-r--r-- | drivers/net/wwan/t7xx/t7xx_modem_ops.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/net/wwan/t7xx/t7xx_modem_ops.h b/drivers/net/wwan/t7xx/t7xx_modem_ops.h new file mode 100644 index 000000000000..7469ed636ae8 --- /dev/null +++ b/drivers/net/wwan/t7xx/t7xx_modem_ops.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0-only + * + * Copyright (c) 2021, MediaTek Inc. + * Copyright (c) 2021-2022, Intel Corporation. + * + * Authors: + * Haijun Liu <haijun.liu@mediatek.com> + * Eliot Lee <eliot.lee@intel.com> + * Moises Veleta <moises.veleta@intel.com> + * Ricardo Martinez <ricardo.martinez@linux.intel.com> + * + * Contributors: + * Amir Hanania <amir.hanania@intel.com> + * Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com> + * Sreehari Kancharla <sreehari.kancharla@intel.com> + */ + +#ifndef __T7XX_MODEM_OPS_H__ +#define __T7XX_MODEM_OPS_H__ + +#include <linux/spinlock.h> +#include <linux/types.h> +#include <linux/workqueue.h> + +#include "t7xx_hif_cldma.h" +#include "t7xx_pci.h" + +#define FEATURE_COUNT 64 + +/** + * enum hif_ex_stage - HIF exception handshake stages with the HW. + * @HIF_EX_INIT: Disable and clear TXQ. + * @HIF_EX_INIT_DONE: Polling for initialization to be done. + * @HIF_EX_CLEARQ_DONE: Disable RX, flush TX/RX workqueues and clear RX. + * @HIF_EX_ALLQ_RESET: HW is back in safe mode for re-initialization and restart. + */ +enum hif_ex_stage { + HIF_EX_INIT, + HIF_EX_INIT_DONE, + HIF_EX_CLEARQ_DONE, + HIF_EX_ALLQ_RESET, +}; + +struct mtk_runtime_feature { + u8 feature_id; + u8 support_info; + u8 reserved[2]; + __le32 data_len; + __le32 data[]; +}; + +enum md_event_id { + FSM_PRE_START, + FSM_START, + FSM_READY, +}; + +struct t7xx_sys_info { + bool ready; + bool handshake_ongoing; + u8 feature_set[FEATURE_COUNT]; + struct t7xx_port *ctl_port; +}; + +struct t7xx_modem { + struct cldma_ctrl *md_ctrl[CLDMA_NUM]; + struct t7xx_pci_dev *t7xx_dev; + struct t7xx_sys_info core_md; + bool md_init_finish; + bool rgu_irq_asserted; + struct workqueue_struct *handshake_wq; + struct work_struct handshake_work; + struct t7xx_fsm_ctl *fsm_ctl; + struct port_proxy *port_prox; + unsigned int exp_id; + spinlock_t exp_lock; /* Protects exception events */ +}; + +void t7xx_md_exception_handshake(struct t7xx_modem *md); +void t7xx_md_event_notify(struct t7xx_modem *md, enum md_event_id evt_id); +int t7xx_md_reset(struct t7xx_pci_dev *t7xx_dev); +int t7xx_md_init(struct t7xx_pci_dev *t7xx_dev); +void t7xx_md_exit(struct t7xx_pci_dev *t7xx_dev); +void t7xx_clear_rgu_irq(struct t7xx_pci_dev *t7xx_dev); +int t7xx_acpi_fldr_func(struct t7xx_pci_dev *t7xx_dev); +int t7xx_pci_mhccif_isr(struct t7xx_pci_dev *t7xx_dev); + +#endif /* __T7XX_MODEM_OPS_H__ */ |