1107 lines
30 KiB
C
1107 lines
30 KiB
C
/*
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* Copyright (c) 2012 Qualcomm Atheros, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/etherdevice.h>
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#include <linux/if_arp.h>
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#include "wil6210.h"
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#include "txrx.h"
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#include "wmi.h"
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#include "trace.h"
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/**
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* WMI event receiving - theory of operations
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*
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* When firmware about to report WMI event, it fills memory area
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* in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
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* the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
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*
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* @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the
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* event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
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* and handles events within the @wmi_event_worker. Every event get detached
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* from list, processed and deleted.
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*
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* Purpose for this mechanism is to release IRQ thread; otherwise,
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* if WMI event handling involves another WMI command flow, this 2-nd flow
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* won't be completed because of blocked IRQ thread.
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*/
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/**
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* Addressing - theory of operations
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*
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* There are several buses present on the WIL6210 card.
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* Same memory areas are visible at different address on
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* the different busses. There are 3 main bus masters:
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* - MAC CPU (ucode)
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* - User CPU (firmware)
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* - AHB (host)
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*
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* On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
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* AHB addresses starting from 0x880000
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*
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* Internally, firmware uses addresses that allows faster access but
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* are invisible from the host. To read from these addresses, alternative
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* AHB address must be used.
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*
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* Memory mapping
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* Linker address PCI/Host address
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* 0x880000 .. 0xa80000 2Mb BAR0
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* 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM
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* 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH
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*/
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/**
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* @fw_mapping provides memory remapping table
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*/
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static const struct {
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u32 from; /* linker address - from, inclusive */
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u32 to; /* linker address - to, exclusive */
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u32 host; /* PCI/Host address - BAR0 + 0x880000 */
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} fw_mapping[] = {
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{0x000000, 0x040000, 0x8c0000}, /* FW code RAM 256k */
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{0x800000, 0x808000, 0x900000}, /* FW data RAM 32k */
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{0x840000, 0x860000, 0x908000}, /* peripheral data RAM 128k/96k used */
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{0x880000, 0x88a000, 0x880000}, /* various RGF */
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{0x8c0000, 0x949000, 0x8c0000}, /* trivial mapping for upper area */
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/*
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* 920000..930000 ucode code RAM
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* 930000..932000 ucode data RAM
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* 932000..949000 back-door debug data
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*/
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};
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/**
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* return AHB address for given firmware/ucode internal (linker) address
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* @x - internal address
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* If address have no valid AHB mapping, return 0
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*/
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static u32 wmi_addr_remap(u32 x)
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{
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uint i;
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for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
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if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
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return x + fw_mapping[i].host - fw_mapping[i].from;
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}
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return 0;
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}
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/**
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* Check address validity for WMI buffer; remap if needed
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* @ptr - internal (linker) fw/ucode address
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*
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* Valid buffer should be DWORD aligned
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*
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* return address for accessing buffer from the host;
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* if buffer is not valid, return NULL.
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*/
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void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
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{
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u32 off;
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u32 ptr = le32_to_cpu(ptr_);
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if (ptr % 4)
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return NULL;
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ptr = wmi_addr_remap(ptr);
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if (ptr < WIL6210_FW_HOST_OFF)
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return NULL;
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off = HOSTADDR(ptr);
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if (off > WIL6210_MEM_SIZE - 4)
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return NULL;
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return wil->csr + off;
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}
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/**
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* Check address validity
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*/
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void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
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{
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u32 off;
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if (ptr % 4)
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return NULL;
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if (ptr < WIL6210_FW_HOST_OFF)
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return NULL;
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off = HOSTADDR(ptr);
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if (off > WIL6210_MEM_SIZE - 4)
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return NULL;
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return wil->csr + off;
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}
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int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
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struct wil6210_mbox_hdr *hdr)
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{
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void __iomem *src = wmi_buffer(wil, ptr);
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if (!src)
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return -EINVAL;
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wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
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return 0;
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}
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static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
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{
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struct {
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struct wil6210_mbox_hdr hdr;
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struct wil6210_mbox_hdr_wmi wmi;
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} __packed cmd = {
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.hdr = {
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.type = WIL_MBOX_HDR_TYPE_WMI,
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.flags = 0,
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.len = cpu_to_le16(sizeof(cmd.wmi) + len),
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},
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.wmi = {
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.mid = 0,
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.id = cpu_to_le16(cmdid),
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},
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};
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struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
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struct wil6210_mbox_ring_desc d_head;
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u32 next_head;
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void __iomem *dst;
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void __iomem *head = wmi_addr(wil, r->head);
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uint retry;
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if (sizeof(cmd) + len > r->entry_size) {
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wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
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(int)(sizeof(cmd) + len), r->entry_size);
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return -ERANGE;
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}
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might_sleep();
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if (!test_bit(wil_status_fwready, &wil->status)) {
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wil_err(wil, "FW not ready\n");
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return -EAGAIN;
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}
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if (!head) {
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wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
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return -EINVAL;
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}
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/* read Tx head till it is not busy */
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for (retry = 5; retry > 0; retry--) {
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wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
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if (d_head.sync == 0)
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break;
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msleep(20);
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}
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if (d_head.sync != 0) {
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wil_err(wil, "WMI head busy\n");
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return -EBUSY;
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}
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/* next head */
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next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
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wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
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/* wait till FW finish with previous command */
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for (retry = 5; retry > 0; retry--) {
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r->tail = ioread32(wil->csr + HOST_MBOX +
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offsetof(struct wil6210_mbox_ctl, tx.tail));
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if (next_head != r->tail)
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break;
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msleep(20);
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}
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if (next_head == r->tail) {
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wil_err(wil, "WMI ring full\n");
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return -EBUSY;
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}
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dst = wmi_buffer(wil, d_head.addr);
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if (!dst) {
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wil_err(wil, "invalid WMI buffer: 0x%08x\n",
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le32_to_cpu(d_head.addr));
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return -EINVAL;
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}
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cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
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/* set command */
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wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
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wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
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sizeof(cmd), true);
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wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
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len, true);
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wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
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wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
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/* mark entry as full */
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iowrite32(1, wil->csr + HOSTADDR(r->head) +
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offsetof(struct wil6210_mbox_ring_desc, sync));
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/* advance next ptr */
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iowrite32(r->head = next_head, wil->csr + HOST_MBOX +
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offsetof(struct wil6210_mbox_ctl, tx.head));
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trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
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/* interrupt to FW */
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iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
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return 0;
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}
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int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
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{
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int rc;
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mutex_lock(&wil->wmi_mutex);
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rc = __wmi_send(wil, cmdid, buf, len);
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mutex_unlock(&wil->wmi_mutex);
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return rc;
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}
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/*=== Event handlers ===*/
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static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
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{
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struct net_device *ndev = wil_to_ndev(wil);
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struct wireless_dev *wdev = wil->wdev;
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struct wmi_ready_event *evt = d;
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wil->fw_version = le32_to_cpu(evt->sw_version);
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wil->n_mids = evt->numof_additional_mids;
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wil_dbg_wmi(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
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evt->mac, wil->n_mids);
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if (!is_valid_ether_addr(ndev->dev_addr)) {
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memcpy(ndev->dev_addr, evt->mac, ETH_ALEN);
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memcpy(ndev->perm_addr, evt->mac, ETH_ALEN);
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}
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snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
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"%d", wil->fw_version);
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}
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static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
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int len)
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{
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wil_dbg_wmi(wil, "WMI: FW ready\n");
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set_bit(wil_status_fwready, &wil->status);
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/* reuse wmi_ready for the firmware ready indication */
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complete(&wil->wmi_ready);
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}
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static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
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{
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struct wmi_rx_mgmt_packet_event *data = d;
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struct wiphy *wiphy = wil_to_wiphy(wil);
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struct ieee80211_mgmt *rx_mgmt_frame =
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(struct ieee80211_mgmt *)data->payload;
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int ch_no = data->info.channel+1;
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u32 freq = ieee80211_channel_to_frequency(ch_no,
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IEEE80211_BAND_60GHZ);
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struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq);
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/* TODO convert LE to CPU */
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s32 signal = 0; /* TODO */
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__le16 fc = rx_mgmt_frame->frame_control;
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u32 d_len = le32_to_cpu(data->info.len);
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u16 d_status = le16_to_cpu(data->info.status);
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wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d\n",
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data->info.channel, data->info.mcs, data->info.snr);
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wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
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le16_to_cpu(fc));
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wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
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data->info.qid, data->info.mid, data->info.cid);
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if (!channel) {
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wil_err(wil, "Frame on unsupported channel\n");
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return;
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}
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if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
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struct cfg80211_bss *bss;
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bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
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d_len, signal, GFP_KERNEL);
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if (bss) {
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wil_dbg_wmi(wil, "Added BSS %pM\n",
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rx_mgmt_frame->bssid);
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cfg80211_put_bss(wiphy, bss);
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} else {
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wil_err(wil, "cfg80211_inform_bss() failed\n");
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}
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} else {
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cfg80211_rx_mgmt(wil->wdev, freq, signal,
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(void *)rx_mgmt_frame, d_len, 0, GFP_KERNEL);
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}
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}
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static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
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void *d, int len)
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{
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if (wil->scan_request) {
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struct wmi_scan_complete_event *data = d;
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bool aborted = (data->status != 0);
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wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
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cfg80211_scan_done(wil->scan_request, aborted);
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wil->scan_request = NULL;
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} else {
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wil_err(wil, "SCAN_COMPLETE while not scanning\n");
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}
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}
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static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
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{
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struct net_device *ndev = wil_to_ndev(wil);
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struct wireless_dev *wdev = wil->wdev;
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struct wmi_connect_event *evt = d;
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int ch; /* channel number */
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struct station_info sinfo;
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u8 *assoc_req_ie, *assoc_resp_ie;
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size_t assoc_req_ielen, assoc_resp_ielen;
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/* capinfo(u16) + listen_interval(u16) + IEs */
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const size_t assoc_req_ie_offset = sizeof(u16) * 2;
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/* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
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const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
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if (len < sizeof(*evt)) {
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wil_err(wil, "Connect event too short : %d bytes\n", len);
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return;
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}
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if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
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evt->assoc_resp_len) {
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wil_err(wil,
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"Connect event corrupted : %d != %d + %d + %d + %d\n",
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len, (int)sizeof(*evt), evt->beacon_ie_len,
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evt->assoc_req_len, evt->assoc_resp_len);
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return;
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}
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ch = evt->channel + 1;
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wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
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evt->bssid, ch, evt->cid);
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wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
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evt->assoc_info, len - sizeof(*evt), true);
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/* figure out IE's */
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assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
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assoc_req_ie_offset];
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assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
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if (evt->assoc_req_len <= assoc_req_ie_offset) {
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assoc_req_ie = NULL;
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assoc_req_ielen = 0;
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}
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assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
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evt->assoc_req_len +
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assoc_resp_ie_offset];
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assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
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if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
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assoc_resp_ie = NULL;
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assoc_resp_ielen = 0;
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}
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if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
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(wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
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if (!test_bit(wil_status_fwconnecting, &wil->status)) {
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wil_err(wil, "Not in connecting state\n");
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return;
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}
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del_timer_sync(&wil->connect_timer);
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cfg80211_connect_result(ndev, evt->bssid,
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assoc_req_ie, assoc_req_ielen,
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assoc_resp_ie, assoc_resp_ielen,
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WLAN_STATUS_SUCCESS, GFP_KERNEL);
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} else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
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(wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
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memset(&sinfo, 0, sizeof(sinfo));
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sinfo.generation = wil->sinfo_gen++;
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if (assoc_req_ie) {
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sinfo.assoc_req_ies = assoc_req_ie;
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sinfo.assoc_req_ies_len = assoc_req_ielen;
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sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
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}
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cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
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}
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clear_bit(wil_status_fwconnecting, &wil->status);
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set_bit(wil_status_fwconnected, &wil->status);
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/* FIXME FW can transmit only ucast frames to peer */
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/* FIXME real ring_id instead of hard coded 0 */
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memcpy(wil->dst_addr[0], evt->bssid, ETH_ALEN);
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wil->pending_connect_cid = evt->cid;
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queue_work(wil->wmi_wq_conn, &wil->connect_worker);
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}
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|
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static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
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void *d, int len)
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{
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struct wmi_disconnect_event *evt = d;
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wil_dbg_wmi(wil, "Disconnect %pM reason %d proto %d wmi\n",
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evt->bssid,
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evt->protocol_reason_status, evt->disconnect_reason);
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wil->sinfo_gen++;
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|
|
|
wil6210_disconnect(wil, evt->bssid);
|
|
}
|
|
|
|
static void wmi_evt_notify(struct wil6210_priv *wil, int id, void *d, int len)
|
|
{
|
|
struct wmi_notify_req_done_event *evt = d;
|
|
|
|
if (len < sizeof(*evt)) {
|
|
wil_err(wil, "Short NOTIFY event\n");
|
|
return;
|
|
}
|
|
|
|
wil->stats.tsf = le64_to_cpu(evt->tsf);
|
|
wil->stats.snr = le32_to_cpu(evt->snr_val);
|
|
wil->stats.bf_mcs = le16_to_cpu(evt->bf_mcs);
|
|
wil->stats.my_rx_sector = le16_to_cpu(evt->my_rx_sector);
|
|
wil->stats.my_tx_sector = le16_to_cpu(evt->my_tx_sector);
|
|
wil->stats.peer_rx_sector = le16_to_cpu(evt->other_rx_sector);
|
|
wil->stats.peer_tx_sector = le16_to_cpu(evt->other_tx_sector);
|
|
wil_dbg_wmi(wil, "Link status, MCS %d TSF 0x%016llx\n"
|
|
"BF status 0x%08x SNR 0x%08x\n"
|
|
"Tx Tpt %d goodput %d Rx goodput %d\n"
|
|
"Sectors(rx:tx) my %d:%d peer %d:%d\n",
|
|
wil->stats.bf_mcs, wil->stats.tsf, evt->status,
|
|
wil->stats.snr, le32_to_cpu(evt->tx_tpt),
|
|
le32_to_cpu(evt->tx_goodput), le32_to_cpu(evt->rx_goodput),
|
|
wil->stats.my_rx_sector, wil->stats.my_tx_sector,
|
|
wil->stats.peer_rx_sector, wil->stats.peer_tx_sector);
|
|
}
|
|
|
|
/*
|
|
* Firmware reports EAPOL frame using WME event.
|
|
* Reconstruct Ethernet frame and deliver it via normal Rx
|
|
*/
|
|
static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
|
|
void *d, int len)
|
|
{
|
|
struct net_device *ndev = wil_to_ndev(wil);
|
|
struct wmi_eapol_rx_event *evt = d;
|
|
u16 eapol_len = le16_to_cpu(evt->eapol_len);
|
|
int sz = eapol_len + ETH_HLEN;
|
|
struct sk_buff *skb;
|
|
struct ethhdr *eth;
|
|
|
|
wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
|
|
evt->src_mac);
|
|
|
|
if (eapol_len > 196) { /* TODO: revisit size limit */
|
|
wil_err(wil, "EAPOL too large\n");
|
|
return;
|
|
}
|
|
|
|
skb = alloc_skb(sz, GFP_KERNEL);
|
|
if (!skb) {
|
|
wil_err(wil, "Failed to allocate skb\n");
|
|
return;
|
|
}
|
|
eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
|
|
memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN);
|
|
memcpy(eth->h_source, evt->src_mac, ETH_ALEN);
|
|
eth->h_proto = cpu_to_be16(ETH_P_PAE);
|
|
memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
|
|
skb->protocol = eth_type_trans(skb, ndev);
|
|
if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
|
|
ndev->stats.rx_packets++;
|
|
ndev->stats.rx_bytes += skb->len;
|
|
} else {
|
|
ndev->stats.rx_dropped++;
|
|
}
|
|
}
|
|
|
|
static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len)
|
|
{
|
|
struct net_device *ndev = wil_to_ndev(wil);
|
|
struct wmi_data_port_open_event *evt = d;
|
|
|
|
wil_dbg_wmi(wil, "Link UP for CID %d\n", evt->cid);
|
|
|
|
netif_carrier_on(ndev);
|
|
}
|
|
|
|
static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len)
|
|
{
|
|
struct net_device *ndev = wil_to_ndev(wil);
|
|
struct wmi_wbe_link_down_event *evt = d;
|
|
|
|
wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n",
|
|
evt->cid, le32_to_cpu(evt->reason));
|
|
|
|
netif_carrier_off(ndev);
|
|
}
|
|
|
|
static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
|
|
int len)
|
|
{
|
|
struct wmi_vring_ba_status_event *evt = d;
|
|
|
|
wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d\n",
|
|
evt->ringid, evt->status ? "N/A" : "OK", evt->agg_wsize,
|
|
__le16_to_cpu(evt->ba_timeout));
|
|
}
|
|
|
|
static const struct {
|
|
int eventid;
|
|
void (*handler)(struct wil6210_priv *wil, int eventid,
|
|
void *data, int data_len);
|
|
} wmi_evt_handlers[] = {
|
|
{WMI_READY_EVENTID, wmi_evt_ready},
|
|
{WMI_FW_READY_EVENTID, wmi_evt_fw_ready},
|
|
{WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
|
|
{WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
|
|
{WMI_CONNECT_EVENTID, wmi_evt_connect},
|
|
{WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
|
|
{WMI_NOTIFY_REQ_DONE_EVENTID, wmi_evt_notify},
|
|
{WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
|
|
{WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup},
|
|
{WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown},
|
|
{WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
|
|
};
|
|
|
|
/*
|
|
* Run in IRQ context
|
|
* Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
|
|
* that will be eventually handled by the @wmi_event_worker in the thread
|
|
* context of thread "wil6210_wmi"
|
|
*/
|
|
void wmi_recv_cmd(struct wil6210_priv *wil)
|
|
{
|
|
struct wil6210_mbox_ring_desc d_tail;
|
|
struct wil6210_mbox_hdr hdr;
|
|
struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
|
|
struct pending_wmi_event *evt;
|
|
u8 *cmd;
|
|
void __iomem *src;
|
|
ulong flags;
|
|
|
|
if (!test_bit(wil_status_reset_done, &wil->status)) {
|
|
wil_err(wil, "Reset not completed\n");
|
|
return;
|
|
}
|
|
|
|
for (;;) {
|
|
u16 len;
|
|
|
|
r->head = ioread32(wil->csr + HOST_MBOX +
|
|
offsetof(struct wil6210_mbox_ctl, rx.head));
|
|
if (r->tail == r->head)
|
|
return;
|
|
|
|
/* read cmd from tail */
|
|
wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
|
|
sizeof(struct wil6210_mbox_ring_desc));
|
|
if (d_tail.sync == 0) {
|
|
wil_err(wil, "Mbox evt not owned by FW?\n");
|
|
return;
|
|
}
|
|
|
|
if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
|
|
wil_err(wil, "Mbox evt at 0x%08x?\n",
|
|
le32_to_cpu(d_tail.addr));
|
|
return;
|
|
}
|
|
|
|
len = le16_to_cpu(hdr.len);
|
|
src = wmi_buffer(wil, d_tail.addr) +
|
|
sizeof(struct wil6210_mbox_hdr);
|
|
evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
|
|
event.wmi) + len, 4),
|
|
GFP_KERNEL);
|
|
if (!evt)
|
|
return;
|
|
|
|
evt->event.hdr = hdr;
|
|
cmd = (void *)&evt->event.wmi;
|
|
wil_memcpy_fromio_32(cmd, src, len);
|
|
/* mark entry as empty */
|
|
iowrite32(0, wil->csr + HOSTADDR(r->tail) +
|
|
offsetof(struct wil6210_mbox_ring_desc, sync));
|
|
/* indicate */
|
|
wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
|
|
le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
|
|
hdr.flags);
|
|
if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
|
|
(len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
|
|
struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
|
|
u16 id = le16_to_cpu(wmi->id);
|
|
u32 tstamp = le32_to_cpu(wmi->timestamp);
|
|
wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
|
|
id, wmi->mid, tstamp);
|
|
trace_wil6210_wmi_event(wmi, &wmi[1],
|
|
len - sizeof(*wmi));
|
|
}
|
|
wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
|
|
&evt->event.hdr, sizeof(hdr) + len, true);
|
|
|
|
/* advance tail */
|
|
r->tail = r->base + ((r->tail - r->base +
|
|
sizeof(struct wil6210_mbox_ring_desc)) % r->size);
|
|
iowrite32(r->tail, wil->csr + HOST_MBOX +
|
|
offsetof(struct wil6210_mbox_ctl, rx.tail));
|
|
|
|
/* add to the pending list */
|
|
spin_lock_irqsave(&wil->wmi_ev_lock, flags);
|
|
list_add_tail(&evt->list, &wil->pending_wmi_ev);
|
|
spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
|
|
{
|
|
int q = queue_work(wil->wmi_wq,
|
|
&wil->wmi_event_worker);
|
|
wil_dbg_wmi(wil, "queue_work -> %d\n", q);
|
|
}
|
|
}
|
|
}
|
|
|
|
int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
|
|
u16 reply_id, void *reply, u8 reply_size, int to_msec)
|
|
{
|
|
int rc;
|
|
int remain;
|
|
|
|
mutex_lock(&wil->wmi_mutex);
|
|
|
|
rc = __wmi_send(wil, cmdid, buf, len);
|
|
if (rc)
|
|
goto out;
|
|
|
|
wil->reply_id = reply_id;
|
|
wil->reply_buf = reply;
|
|
wil->reply_size = reply_size;
|
|
remain = wait_for_completion_timeout(&wil->wmi_ready,
|
|
msecs_to_jiffies(to_msec));
|
|
if (0 == remain) {
|
|
wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
|
|
cmdid, reply_id, to_msec);
|
|
rc = -ETIME;
|
|
} else {
|
|
wil_dbg_wmi(wil,
|
|
"wmi_call(0x%04x->0x%04x) completed in %d msec\n",
|
|
cmdid, reply_id,
|
|
to_msec - jiffies_to_msecs(remain));
|
|
}
|
|
wil->reply_id = 0;
|
|
wil->reply_buf = NULL;
|
|
wil->reply_size = 0;
|
|
out:
|
|
mutex_unlock(&wil->wmi_mutex);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int wmi_echo(struct wil6210_priv *wil)
|
|
{
|
|
struct wmi_echo_cmd cmd = {
|
|
.value = cpu_to_le32(0x12345678),
|
|
};
|
|
|
|
return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
|
|
WMI_ECHO_RSP_EVENTID, NULL, 0, 20);
|
|
}
|
|
|
|
int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
|
|
{
|
|
struct wmi_set_mac_address_cmd cmd;
|
|
|
|
memcpy(cmd.mac, addr, ETH_ALEN);
|
|
|
|
wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
|
|
|
|
return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
|
|
}
|
|
|
|
int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
|
|
{
|
|
int rc;
|
|
|
|
struct wmi_pcp_start_cmd cmd = {
|
|
.bcon_interval = cpu_to_le16(bi),
|
|
.network_type = wmi_nettype,
|
|
.disable_sec_offload = 1,
|
|
.channel = chan - 1,
|
|
};
|
|
struct {
|
|
struct wil6210_mbox_hdr_wmi wmi;
|
|
struct wmi_pcp_started_event evt;
|
|
} __packed reply;
|
|
|
|
if (!wil->secure_pcp)
|
|
cmd.disable_sec = 1;
|
|
|
|
/*
|
|
* Processing time may be huge, in case of secure AP it takes about
|
|
* 3500ms for FW to start AP
|
|
*/
|
|
rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
|
|
WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
|
|
rc = -EINVAL;
|
|
|
|
return rc;
|
|
}
|
|
|
|
int wmi_pcp_stop(struct wil6210_priv *wil)
|
|
{
|
|
return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
|
|
WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
|
|
}
|
|
|
|
int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
|
|
{
|
|
struct wmi_set_ssid_cmd cmd = {
|
|
.ssid_len = cpu_to_le32(ssid_len),
|
|
};
|
|
|
|
if (ssid_len > sizeof(cmd.ssid))
|
|
return -EINVAL;
|
|
|
|
memcpy(cmd.ssid, ssid, ssid_len);
|
|
|
|
return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
|
|
}
|
|
|
|
int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
|
|
{
|
|
int rc;
|
|
struct {
|
|
struct wil6210_mbox_hdr_wmi wmi;
|
|
struct wmi_set_ssid_cmd cmd;
|
|
} __packed reply;
|
|
int len; /* reply.cmd.ssid_len in CPU order */
|
|
|
|
rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
|
|
&reply, sizeof(reply), 20);
|
|
if (rc)
|
|
return rc;
|
|
|
|
len = le32_to_cpu(reply.cmd.ssid_len);
|
|
if (len > sizeof(reply.cmd.ssid))
|
|
return -EINVAL;
|
|
|
|
*ssid_len = len;
|
|
memcpy(ssid, reply.cmd.ssid, len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int wmi_set_channel(struct wil6210_priv *wil, int channel)
|
|
{
|
|
struct wmi_set_pcp_channel_cmd cmd = {
|
|
.channel = channel - 1,
|
|
};
|
|
|
|
return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
|
|
}
|
|
|
|
int wmi_get_channel(struct wil6210_priv *wil, int *channel)
|
|
{
|
|
int rc;
|
|
struct {
|
|
struct wil6210_mbox_hdr_wmi wmi;
|
|
struct wmi_set_pcp_channel_cmd cmd;
|
|
} __packed reply;
|
|
|
|
rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
|
|
WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (reply.cmd.channel > 3)
|
|
return -EINVAL;
|
|
|
|
*channel = reply.cmd.channel + 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
|
|
{
|
|
struct wmi_p2p_cfg_cmd cmd = {
|
|
.discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
|
|
.channel = channel - 1,
|
|
};
|
|
|
|
return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
|
|
}
|
|
|
|
int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
|
|
const void *mac_addr)
|
|
{
|
|
struct wmi_delete_cipher_key_cmd cmd = {
|
|
.key_index = key_index,
|
|
};
|
|
|
|
if (mac_addr)
|
|
memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
|
|
|
|
return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
|
|
}
|
|
|
|
int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
|
|
const void *mac_addr, int key_len, const void *key)
|
|
{
|
|
struct wmi_add_cipher_key_cmd cmd = {
|
|
.key_index = key_index,
|
|
.key_usage = WMI_KEY_USE_PAIRWISE,
|
|
.key_len = key_len,
|
|
};
|
|
|
|
if (!key || (key_len > sizeof(cmd.key)))
|
|
return -EINVAL;
|
|
|
|
memcpy(cmd.key, key, key_len);
|
|
if (mac_addr)
|
|
memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
|
|
|
|
return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
|
|
}
|
|
|
|
int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
|
|
{
|
|
int rc;
|
|
u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
|
|
struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
|
|
if (!cmd)
|
|
return -ENOMEM;
|
|
|
|
cmd->mgmt_frm_type = type;
|
|
/* BUG: FW API define ieLen as u8. Will fix FW */
|
|
cmd->ie_len = cpu_to_le16(ie_len);
|
|
memcpy(cmd->ie_info, ie, ie_len);
|
|
rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* wmi_rxon - turn radio on/off
|
|
* @on: turn on if true, off otherwise
|
|
*
|
|
* Only switch radio. Channel should be set separately.
|
|
* No timeout for rxon - radio turned on forever unless some other call
|
|
* turns it off
|
|
*/
|
|
int wmi_rxon(struct wil6210_priv *wil, bool on)
|
|
{
|
|
int rc;
|
|
struct {
|
|
struct wil6210_mbox_hdr_wmi wmi;
|
|
struct wmi_listen_started_event evt;
|
|
} __packed reply;
|
|
|
|
wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
|
|
|
|
if (on) {
|
|
rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
|
|
WMI_LISTEN_STARTED_EVENTID,
|
|
&reply, sizeof(reply), 100);
|
|
if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
|
|
rc = -EINVAL;
|
|
} else {
|
|
rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
|
|
WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
|
|
{
|
|
struct wireless_dev *wdev = wil->wdev;
|
|
struct net_device *ndev = wil_to_ndev(wil);
|
|
struct wmi_cfg_rx_chain_cmd cmd = {
|
|
.action = WMI_RX_CHAIN_ADD,
|
|
.rx_sw_ring = {
|
|
.max_mpdu_size = cpu_to_le16(RX_BUF_LEN),
|
|
.ring_mem_base = cpu_to_le64(vring->pa),
|
|
.ring_size = cpu_to_le16(vring->size),
|
|
},
|
|
.mid = 0, /* TODO - what is it? */
|
|
.decap_trans_type = WMI_DECAP_TYPE_802_3,
|
|
};
|
|
struct {
|
|
struct wil6210_mbox_hdr_wmi wmi;
|
|
struct wmi_cfg_rx_chain_done_event evt;
|
|
} __packed evt;
|
|
int rc;
|
|
|
|
if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
|
|
struct ieee80211_channel *ch = wdev->preset_chandef.chan;
|
|
|
|
cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
|
|
if (ch)
|
|
cmd.sniffer_cfg.channel = ch->hw_value - 1;
|
|
cmd.sniffer_cfg.phy_info_mode =
|
|
cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
|
|
cmd.sniffer_cfg.phy_support =
|
|
cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
|
|
? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
|
|
} else {
|
|
/* Initialize offload (in non-sniffer mode).
|
|
* Linux IP stack always calculates IP checksum
|
|
* HW always calculate TCP/UDP checksum
|
|
*/
|
|
cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
|
|
}
|
|
/* typical time for secure PCP is 840ms */
|
|
rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
|
|
WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
|
|
if (rc)
|
|
return rc;
|
|
|
|
vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
|
|
|
|
wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
|
|
le32_to_cpu(evt.evt.status), vring->hwtail);
|
|
|
|
if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
|
|
rc = -EINVAL;
|
|
|
|
return rc;
|
|
}
|
|
|
|
int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r)
|
|
{
|
|
int rc;
|
|
struct wmi_temp_sense_cmd cmd = {
|
|
.measure_marlon_m_en = cpu_to_le32(!!t_m),
|
|
.measure_marlon_r_en = cpu_to_le32(!!t_r),
|
|
};
|
|
struct {
|
|
struct wil6210_mbox_hdr_wmi wmi;
|
|
struct wmi_temp_sense_done_event evt;
|
|
} __packed reply;
|
|
|
|
rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
|
|
WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (t_m)
|
|
*t_m = le32_to_cpu(reply.evt.marlon_m_t1000);
|
|
if (t_r)
|
|
*t_r = le32_to_cpu(reply.evt.marlon_r_t1000);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void wmi_event_flush(struct wil6210_priv *wil)
|
|
{
|
|
struct pending_wmi_event *evt, *t;
|
|
|
|
wil_dbg_wmi(wil, "%s()\n", __func__);
|
|
|
|
list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
|
|
list_del(&evt->list);
|
|
kfree(evt);
|
|
}
|
|
}
|
|
|
|
static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
|
|
void *d, int len)
|
|
{
|
|
uint i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
|
|
if (wmi_evt_handlers[i].eventid == id) {
|
|
wmi_evt_handlers[i].handler(wil, id, d, len);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void wmi_event_handle(struct wil6210_priv *wil,
|
|
struct wil6210_mbox_hdr *hdr)
|
|
{
|
|
u16 len = le16_to_cpu(hdr->len);
|
|
|
|
if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
|
|
(len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
|
|
struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
|
|
void *evt_data = (void *)(&wmi[1]);
|
|
u16 id = le16_to_cpu(wmi->id);
|
|
/* check if someone waits for this event */
|
|
if (wil->reply_id && wil->reply_id == id) {
|
|
if (wil->reply_buf) {
|
|
memcpy(wil->reply_buf, wmi,
|
|
min(len, wil->reply_size));
|
|
} else {
|
|
wmi_evt_call_handler(wil, id, evt_data,
|
|
len - sizeof(*wmi));
|
|
}
|
|
wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
|
|
complete(&wil->wmi_ready);
|
|
return;
|
|
}
|
|
/* unsolicited event */
|
|
/* search for handler */
|
|
if (!wmi_evt_call_handler(wil, id, evt_data,
|
|
len - sizeof(*wmi))) {
|
|
wil_err(wil, "Unhandled event 0x%04x\n", id);
|
|
}
|
|
} else {
|
|
wil_err(wil, "Unknown event type\n");
|
|
print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
|
|
hdr, sizeof(*hdr) + len, true);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Retrieve next WMI event from the pending list
|
|
*/
|
|
static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
|
|
{
|
|
ulong flags;
|
|
struct list_head *ret = NULL;
|
|
|
|
spin_lock_irqsave(&wil->wmi_ev_lock, flags);
|
|
|
|
if (!list_empty(&wil->pending_wmi_ev)) {
|
|
ret = wil->pending_wmi_ev.next;
|
|
list_del(ret);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Handler for the WMI events
|
|
*/
|
|
void wmi_event_worker(struct work_struct *work)
|
|
{
|
|
struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
|
|
wmi_event_worker);
|
|
struct pending_wmi_event *evt;
|
|
struct list_head *lh;
|
|
|
|
while ((lh = next_wmi_ev(wil)) != NULL) {
|
|
evt = list_entry(lh, struct pending_wmi_event, list);
|
|
wmi_event_handle(wil, &evt->event.hdr);
|
|
kfree(evt);
|
|
}
|
|
}
|