| /* |
| * Copyright (c) 2010 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #ifndef BRCMFMAC_BUS_H |
| #define BRCMFMAC_BUS_H |
| |
| #include "debug.h" |
| |
| /* IDs of the 6 default common rings of msgbuf protocol */ |
| #define BRCMF_H2D_MSGRING_CONTROL_SUBMIT 0 |
| #define BRCMF_H2D_MSGRING_RXPOST_SUBMIT 1 |
| #define BRCMF_H2D_MSGRING_FLOWRING_IDSTART 2 |
| #define BRCMF_D2H_MSGRING_CONTROL_COMPLETE 2 |
| #define BRCMF_D2H_MSGRING_TX_COMPLETE 3 |
| #define BRCMF_D2H_MSGRING_RX_COMPLETE 4 |
| |
| |
| #define BRCMF_NROF_H2D_COMMON_MSGRINGS 2 |
| #define BRCMF_NROF_D2H_COMMON_MSGRINGS 3 |
| #define BRCMF_NROF_COMMON_MSGRINGS (BRCMF_NROF_H2D_COMMON_MSGRINGS + \ |
| BRCMF_NROF_D2H_COMMON_MSGRINGS) |
| |
| /* The level of bus communication with the dongle */ |
| enum brcmf_bus_state { |
| BRCMF_BUS_DOWN, /* Not ready for frame transfers */ |
| BRCMF_BUS_UP /* Ready for frame transfers */ |
| }; |
| |
| /* The level of bus communication with the dongle */ |
| enum brcmf_bus_protocol_type { |
| BRCMF_PROTO_BCDC, |
| BRCMF_PROTO_MSGBUF |
| }; |
| |
| struct brcmf_mp_device; |
| |
| struct brcmf_bus_dcmd { |
| char *name; |
| char *param; |
| int param_len; |
| struct list_head list; |
| }; |
| |
| /** |
| * struct brcmf_bus_ops - bus callback operations. |
| * |
| * @preinit: execute bus/device specific dongle init commands (optional). |
| * @init: prepare for communication with dongle. |
| * @stop: clear pending frames, disable data flow. |
| * @txdata: send a data frame to the dongle. When the data |
| * has been transferred, the common driver must be |
| * notified using brcmf_txcomplete(). The common |
| * driver calls this function with interrupts |
| * disabled. |
| * @txctl: transmit a control request message to dongle. |
| * @rxctl: receive a control response message from dongle. |
| * @gettxq: obtain a reference of bus transmit queue (optional). |
| * @wowl_config: specify if dongle is configured for wowl when going to suspend |
| * @get_ramsize: obtain size of device memory. |
| * @get_memdump: obtain device memory dump in provided buffer. |
| * |
| * This structure provides an abstract interface towards the |
| * bus specific driver. For control messages to common driver |
| * will assure there is only one active transaction. Unless |
| * indicated otherwise these callbacks are mandatory. |
| */ |
| struct brcmf_bus_ops { |
| int (*preinit)(struct device *dev); |
| void (*stop)(struct device *dev); |
| int (*txdata)(struct device *dev, struct sk_buff *skb); |
| int (*txctl)(struct device *dev, unsigned char *msg, uint len); |
| int (*rxctl)(struct device *dev, unsigned char *msg, uint len); |
| struct pktq * (*gettxq)(struct device *dev); |
| void (*wowl_config)(struct device *dev, bool enabled); |
| size_t (*get_ramsize)(struct device *dev); |
| int (*get_memdump)(struct device *dev, void *data, size_t len); |
| }; |
| |
| |
| /** |
| * struct brcmf_bus_msgbuf - bus ringbuf if in case of msgbuf. |
| * |
| * @commonrings: commonrings which are always there. |
| * @flowrings: commonrings which are dynamically created and destroyed for data. |
| * @rx_dataoffset: if set then all rx data has this this offset. |
| * @max_rxbufpost: maximum number of buffers to post for rx. |
| * @max_flowrings: maximum number of tx flow rings supported. |
| * @max_submissionrings: maximum number of submission rings(h2d) supported. |
| * @max_completionrings: maximum number of completion rings(d2h) supported. |
| */ |
| struct brcmf_bus_msgbuf { |
| struct brcmf_commonring *commonrings[BRCMF_NROF_COMMON_MSGRINGS]; |
| struct brcmf_commonring **flowrings; |
| u32 rx_dataoffset; |
| u32 max_rxbufpost; |
| u16 max_flowrings; |
| u16 max_submissionrings; |
| u16 max_completionrings; |
| }; |
| |
| |
| /** |
| * struct brcmf_bus - interface structure between common and bus layer |
| * |
| * @bus_priv: pointer to private bus device. |
| * @proto_type: protocol type, bcdc or msgbuf |
| * @dev: device pointer of bus device. |
| * @drvr: public driver information. |
| * @state: operational state of the bus interface. |
| * @maxctl: maximum size for rxctl request message. |
| * @tx_realloc: number of tx packets realloced for headroom. |
| * @dstats: dongle-based statistical data. |
| * @dcmd_list: bus/device specific dongle initialization commands. |
| * @chip: device identifier of the dongle chip. |
| * @wowl_supported: is wowl supported by bus driver. |
| * @chiprev: revision of the dongle chip. |
| */ |
| struct brcmf_bus { |
| union { |
| struct brcmf_sdio_dev *sdio; |
| struct brcmf_usbdev *usb; |
| struct brcmf_pciedev *pcie; |
| } bus_priv; |
| enum brcmf_bus_protocol_type proto_type; |
| struct device *dev; |
| struct brcmf_pub *drvr; |
| enum brcmf_bus_state state; |
| uint maxctl; |
| unsigned long tx_realloc; |
| u32 chip; |
| u32 chiprev; |
| bool always_use_fws_queue; |
| bool wowl_supported; |
| |
| const struct brcmf_bus_ops *ops; |
| struct brcmf_bus_msgbuf *msgbuf; |
| }; |
| |
| /* |
| * callback wrappers |
| */ |
| static inline int brcmf_bus_preinit(struct brcmf_bus *bus) |
| { |
| if (!bus->ops->preinit) |
| return 0; |
| return bus->ops->preinit(bus->dev); |
| } |
| |
| static inline void brcmf_bus_stop(struct brcmf_bus *bus) |
| { |
| bus->ops->stop(bus->dev); |
| } |
| |
| static inline int brcmf_bus_txdata(struct brcmf_bus *bus, struct sk_buff *skb) |
| { |
| return bus->ops->txdata(bus->dev, skb); |
| } |
| |
| static inline |
| int brcmf_bus_txctl(struct brcmf_bus *bus, unsigned char *msg, uint len) |
| { |
| return bus->ops->txctl(bus->dev, msg, len); |
| } |
| |
| static inline |
| int brcmf_bus_rxctl(struct brcmf_bus *bus, unsigned char *msg, uint len) |
| { |
| return bus->ops->rxctl(bus->dev, msg, len); |
| } |
| |
| static inline |
| struct pktq *brcmf_bus_gettxq(struct brcmf_bus *bus) |
| { |
| if (!bus->ops->gettxq) |
| return ERR_PTR(-ENOENT); |
| |
| return bus->ops->gettxq(bus->dev); |
| } |
| |
| static inline |
| void brcmf_bus_wowl_config(struct brcmf_bus *bus, bool enabled) |
| { |
| if (bus->ops->wowl_config) |
| bus->ops->wowl_config(bus->dev, enabled); |
| } |
| |
| static inline size_t brcmf_bus_get_ramsize(struct brcmf_bus *bus) |
| { |
| if (!bus->ops->get_ramsize) |
| return 0; |
| |
| return bus->ops->get_ramsize(bus->dev); |
| } |
| |
| static inline |
| int brcmf_bus_get_memdump(struct brcmf_bus *bus, void *data, size_t len) |
| { |
| if (!bus->ops->get_memdump) |
| return -EOPNOTSUPP; |
| |
| return bus->ops->get_memdump(bus->dev, data, len); |
| } |
| |
| /* |
| * interface functions from common layer |
| */ |
| |
| /* Receive frame for delivery to OS. Callee disposes of rxp. */ |
| void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp, bool handle_event); |
| /* Receive async event packet from firmware. Callee disposes of rxp. */ |
| void brcmf_rx_event(struct device *dev, struct sk_buff *rxp); |
| |
| /* Indication from bus module regarding presence/insertion of dongle. */ |
| int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings); |
| /* Indication from bus module regarding removal/absence of dongle */ |
| void brcmf_detach(struct device *dev); |
| /* Indication from bus module that dongle should be reset */ |
| void brcmf_dev_reset(struct device *dev); |
| |
| /* Configure the "global" bus state used by upper layers */ |
| void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state); |
| |
| int brcmf_bus_started(struct device *dev); |
| s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len); |
| void brcmf_bus_add_txhdrlen(struct device *dev, uint len); |
| |
| #ifdef CONFIG_BRCMFMAC_SDIO |
| void brcmf_sdio_exit(void); |
| void brcmf_sdio_register(void); |
| #endif |
| #ifdef CONFIG_BRCMFMAC_USB |
| void brcmf_usb_exit(void); |
| void brcmf_usb_register(void); |
| #endif |
| |
| #endif /* BRCMFMAC_BUS_H */ |