561 lines
15 KiB
C
561 lines
15 KiB
C
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/*
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* Copyright (c) 2014-2017 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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/* Algorithmic part of the firmware download.
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* To be included in the container file providing framework
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*/
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#define wil_err_fw(wil, fmt, arg...) wil_err(wil, "ERR[ FW ]" fmt, ##arg)
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#define wil_dbg_fw(wil, fmt, arg...) wil_dbg(wil, "DBG[ FW ]" fmt, ##arg)
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#define wil_hex_dump_fw(prefix_str, prefix_type, rowsize, \
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groupsize, buf, len, ascii) \
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print_hex_dump_debug("DBG[ FW ]" prefix_str, \
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prefix_type, rowsize, \
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groupsize, buf, len, ascii)
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#define FW_ADDR_CHECK(ioaddr, val, msg) do { \
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ioaddr = wmi_buffer(wil, val); \
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if (!ioaddr) { \
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wil_err_fw(wil, "bad " msg ": 0x%08x\n", \
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le32_to_cpu(val)); \
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return -EINVAL; \
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} \
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} while (0)
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/**
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* wil_fw_verify - verify firmware file validity
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*
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* perform various checks for the firmware file header.
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* records are not validated.
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*
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* Return file size or negative error
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*/
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static int wil_fw_verify(struct wil6210_priv *wil, const u8 *data, size_t size)
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{
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const struct wil_fw_record_head *hdr = (const void *)data;
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struct wil_fw_record_file_header fh;
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const struct wil_fw_record_file_header *fh_;
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u32 crc;
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u32 dlen;
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if (size % 4) {
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wil_err_fw(wil, "image size not aligned: %zu\n", size);
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return -EINVAL;
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}
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/* have enough data for the file header? */
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if (size < sizeof(*hdr) + sizeof(fh)) {
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wil_err_fw(wil, "file too short: %zu bytes\n", size);
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return -EINVAL;
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}
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/* start with the file header? */
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if (le16_to_cpu(hdr->type) != wil_fw_type_file_header) {
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wil_err_fw(wil, "no file header\n");
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return -EINVAL;
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}
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/* data_len */
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fh_ = (struct wil_fw_record_file_header *)&hdr[1];
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dlen = le32_to_cpu(fh_->data_len);
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if (dlen % 4) {
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wil_err_fw(wil, "data length not aligned: %lu\n", (ulong)dlen);
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return -EINVAL;
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}
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if (size < dlen) {
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wil_err_fw(wil, "file truncated at %zu/%lu\n",
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size, (ulong)dlen);
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return -EINVAL;
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}
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if (dlen < sizeof(*hdr) + sizeof(fh)) {
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wil_err_fw(wil, "data length too short: %lu\n", (ulong)dlen);
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return -EINVAL;
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}
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/* signature */
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if (le32_to_cpu(fh_->signature) != WIL_FW_SIGNATURE) {
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wil_err_fw(wil, "bad header signature: 0x%08x\n",
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le32_to_cpu(fh_->signature));
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return -EINVAL;
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}
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/* version */
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if (le32_to_cpu(fh_->version) > WIL_FW_FMT_VERSION) {
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wil_err_fw(wil, "unsupported header version: %d\n",
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le32_to_cpu(fh_->version));
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return -EINVAL;
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}
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/* checksum. ~crc32(~0, data, size) when fh.crc set to 0*/
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fh = *fh_;
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fh.crc = 0;
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crc = crc32_le(~0, (unsigned char const *)hdr, sizeof(*hdr));
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crc = crc32_le(crc, (unsigned char const *)&fh, sizeof(fh));
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crc = crc32_le(crc, (unsigned char const *)&fh_[1],
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dlen - sizeof(*hdr) - sizeof(fh));
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crc = ~crc;
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if (crc != le32_to_cpu(fh_->crc)) {
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wil_err_fw(wil, "checksum mismatch:"
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" calculated for %lu bytes 0x%08x != 0x%08x\n",
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(ulong)dlen, crc, le32_to_cpu(fh_->crc));
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return -EINVAL;
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}
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return (int)dlen;
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}
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static int fw_ignore_section(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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return 0;
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}
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static int fw_handle_comment(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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wil_hex_dump_fw("", DUMP_PREFIX_OFFSET, 16, 1, data, size, true);
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return 0;
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}
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static int
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fw_handle_capabilities(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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const struct wil_fw_record_capabilities *rec = data;
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size_t capa_size;
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if (size < sizeof(*rec) ||
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le32_to_cpu(rec->magic) != WIL_FW_CAPABILITIES_MAGIC)
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return 0;
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capa_size = size - offsetof(struct wil_fw_record_capabilities,
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capabilities);
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bitmap_zero(wil->fw_capabilities, WMI_FW_CAPABILITY_MAX);
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memcpy(wil->fw_capabilities, rec->capabilities,
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min(sizeof(wil->fw_capabilities), capa_size));
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wil_hex_dump_fw("CAPA", DUMP_PREFIX_OFFSET, 16, 1,
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rec->capabilities, capa_size, false);
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return 0;
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}
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static int fw_handle_data(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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const struct wil_fw_record_data *d = data;
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void __iomem *dst;
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size_t s = size - sizeof(*d);
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if (size < sizeof(*d) + sizeof(u32)) {
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wil_err_fw(wil, "data record too short: %zu\n", size);
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return -EINVAL;
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}
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FW_ADDR_CHECK(dst, d->addr, "address");
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wil_dbg_fw(wil, "write [0x%08x] <== %zu bytes\n", le32_to_cpu(d->addr),
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s);
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wil_memcpy_toio_32(dst, d->data, s);
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wmb(); /* finish before processing next record */
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return 0;
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}
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static int fw_handle_fill(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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const struct wil_fw_record_fill *d = data;
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void __iomem *dst;
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u32 v;
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size_t s = (size_t)le32_to_cpu(d->size);
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if (size != sizeof(*d)) {
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wil_err_fw(wil, "bad size for fill record: %zu\n", size);
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return -EINVAL;
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}
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if (s < sizeof(u32)) {
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wil_err_fw(wil, "fill size too short: %zu\n", s);
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return -EINVAL;
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}
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if (s % sizeof(u32)) {
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wil_err_fw(wil, "fill size not aligned: %zu\n", s);
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return -EINVAL;
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}
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FW_ADDR_CHECK(dst, d->addr, "address");
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v = le32_to_cpu(d->value);
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wil_dbg_fw(wil, "fill [0x%08x] <== 0x%08x, %zu bytes\n",
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le32_to_cpu(d->addr), v, s);
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wil_memset_toio_32(dst, v, s);
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wmb(); /* finish before processing next record */
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return 0;
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}
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static int fw_handle_file_header(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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const struct wil_fw_record_file_header *d = data;
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if (size != sizeof(*d)) {
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wil_err_fw(wil, "file header length incorrect: %zu\n", size);
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return -EINVAL;
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}
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wil_dbg_fw(wil, "new file, ver. %d, %i bytes\n",
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d->version, d->data_len);
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wil_hex_dump_fw("", DUMP_PREFIX_OFFSET, 16, 1, d->comment,
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sizeof(d->comment), true);
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if (!memcmp(d->comment, WIL_FW_VERSION_PREFIX,
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WIL_FW_VERSION_PREFIX_LEN))
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memcpy(wil->fw_version,
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d->comment + WIL_FW_VERSION_PREFIX_LEN,
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min(sizeof(d->comment) - WIL_FW_VERSION_PREFIX_LEN,
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sizeof(wil->fw_version) - 1));
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return 0;
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}
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static int fw_handle_direct_write(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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const struct wil_fw_record_direct_write *d = data;
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const struct wil_fw_data_dwrite *block = d->data;
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int n, i;
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if (size % sizeof(*block)) {
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wil_err_fw(wil, "record size not aligned on %zu: %zu\n",
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sizeof(*block), size);
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return -EINVAL;
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}
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n = size / sizeof(*block);
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for (i = 0; i < n; i++) {
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void __iomem *dst;
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u32 m = le32_to_cpu(block[i].mask);
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u32 v = le32_to_cpu(block[i].value);
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u32 x, y;
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FW_ADDR_CHECK(dst, block[i].addr, "address");
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x = readl(dst);
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y = (x & m) | (v & ~m);
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wil_dbg_fw(wil, "write [0x%08x] <== 0x%08x "
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"(old 0x%08x val 0x%08x mask 0x%08x)\n",
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le32_to_cpu(block[i].addr), y, x, v, m);
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writel(y, dst);
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wmb(); /* finish before processing next record */
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}
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return 0;
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}
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static int gw_write(struct wil6210_priv *wil, void __iomem *gwa_addr,
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void __iomem *gwa_cmd, void __iomem *gwa_ctl, u32 gw_cmd,
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u32 a)
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{
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unsigned delay = 0;
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writel(a, gwa_addr);
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writel(gw_cmd, gwa_cmd);
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wmb(); /* finish before activate gw */
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writel(WIL_FW_GW_CTL_RUN, gwa_ctl); /* activate gw */
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do {
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udelay(1); /* typical time is few usec */
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if (delay++ > 100) {
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wil_err_fw(wil, "gw timeout\n");
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return -EINVAL;
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}
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} while (readl(gwa_ctl) & WIL_FW_GW_CTL_BUSY); /* gw done? */
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return 0;
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}
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static int fw_handle_gateway_data(struct wil6210_priv *wil, const void *data,
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size_t size)
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{
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const struct wil_fw_record_gateway_data *d = data;
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const struct wil_fw_data_gw *block = d->data;
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void __iomem *gwa_addr;
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void __iomem *gwa_val;
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void __iomem *gwa_cmd;
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void __iomem *gwa_ctl;
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u32 gw_cmd;
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int n, i;
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if (size < sizeof(*d) + sizeof(*block)) {
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wil_err_fw(wil, "gateway record too short: %zu\n", size);
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return -EINVAL;
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}
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if ((size - sizeof(*d)) % sizeof(*block)) {
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wil_err_fw(wil, "gateway record data size"
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" not aligned on %zu: %zu\n",
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sizeof(*block), size - sizeof(*d));
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return -EINVAL;
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}
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n = (size - sizeof(*d)) / sizeof(*block);
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gw_cmd = le32_to_cpu(d->command);
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wil_dbg_fw(wil, "gw write record [%3d] blocks, cmd 0x%08x\n",
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n, gw_cmd);
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FW_ADDR_CHECK(gwa_addr, d->gateway_addr_addr, "gateway_addr_addr");
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FW_ADDR_CHECK(gwa_val, d->gateway_value_addr, "gateway_value_addr");
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FW_ADDR_CHECK(gwa_cmd, d->gateway_cmd_addr, "gateway_cmd_addr");
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FW_ADDR_CHECK(gwa_ctl, d->gateway_ctrl_address, "gateway_ctrl_address");
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wil_dbg_fw(wil, "gw addresses: addr 0x%08x val 0x%08x"
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" cmd 0x%08x ctl 0x%08x\n",
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le32_to_cpu(d->gateway_addr_addr),
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le32_to_cpu(d->gateway_value_addr),
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le32_to_cpu(d->gateway_cmd_addr),
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le32_to_cpu(d->gateway_ctrl_address));
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for (i = 0; i < n; i++) {
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int rc;
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u32 a = le32_to_cpu(block[i].addr);
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u32 v = le32_to_cpu(block[i].value);
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wil_dbg_fw(wil, " gw write[%3d] [0x%08x] <== 0x%08x\n",
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i, a, v);
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writel(v, gwa_val);
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rc = gw_write(wil, gwa_addr, gwa_cmd, gwa_ctl, gw_cmd, a);
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if (rc)
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return rc;
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}
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return 0;
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}
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static int fw_handle_gateway_data4(struct wil6210_priv *wil, const void *data,
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size_t size)
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|
|
{
|
||
|
|
const struct wil_fw_record_gateway_data4 *d = data;
|
||
|
|
const struct wil_fw_data_gw4 *block = d->data;
|
||
|
|
void __iomem *gwa_addr;
|
||
|
|
void __iomem *gwa_val[ARRAY_SIZE(block->value)];
|
||
|
|
void __iomem *gwa_cmd;
|
||
|
|
void __iomem *gwa_ctl;
|
||
|
|
u32 gw_cmd;
|
||
|
|
int n, i, k;
|
||
|
|
|
||
|
|
if (size < sizeof(*d) + sizeof(*block)) {
|
||
|
|
wil_err_fw(wil, "gateway4 record too short: %zu\n", size);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((size - sizeof(*d)) % sizeof(*block)) {
|
||
|
|
wil_err_fw(wil, "gateway4 record data size"
|
||
|
|
" not aligned on %zu: %zu\n",
|
||
|
|
sizeof(*block), size - sizeof(*d));
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
n = (size - sizeof(*d)) / sizeof(*block);
|
||
|
|
|
||
|
|
gw_cmd = le32_to_cpu(d->command);
|
||
|
|
|
||
|
|
wil_dbg_fw(wil, "gw4 write record [%3d] blocks, cmd 0x%08x\n",
|
||
|
|
n, gw_cmd);
|
||
|
|
|
||
|
|
FW_ADDR_CHECK(gwa_addr, d->gateway_addr_addr, "gateway_addr_addr");
|
||
|
|
for (k = 0; k < ARRAY_SIZE(block->value); k++)
|
||
|
|
FW_ADDR_CHECK(gwa_val[k], d->gateway_value_addr[k],
|
||
|
|
"gateway_value_addr");
|
||
|
|
FW_ADDR_CHECK(gwa_cmd, d->gateway_cmd_addr, "gateway_cmd_addr");
|
||
|
|
FW_ADDR_CHECK(gwa_ctl, d->gateway_ctrl_address, "gateway_ctrl_address");
|
||
|
|
|
||
|
|
wil_dbg_fw(wil, "gw4 addresses: addr 0x%08x cmd 0x%08x ctl 0x%08x\n",
|
||
|
|
le32_to_cpu(d->gateway_addr_addr),
|
||
|
|
le32_to_cpu(d->gateway_cmd_addr),
|
||
|
|
le32_to_cpu(d->gateway_ctrl_address));
|
||
|
|
wil_hex_dump_fw("val addresses: ", DUMP_PREFIX_NONE, 16, 4,
|
||
|
|
d->gateway_value_addr, sizeof(d->gateway_value_addr),
|
||
|
|
false);
|
||
|
|
|
||
|
|
for (i = 0; i < n; i++) {
|
||
|
|
int rc;
|
||
|
|
u32 a = le32_to_cpu(block[i].addr);
|
||
|
|
u32 v[ARRAY_SIZE(block->value)];
|
||
|
|
|
||
|
|
for (k = 0; k < ARRAY_SIZE(block->value); k++)
|
||
|
|
v[k] = le32_to_cpu(block[i].value[k]);
|
||
|
|
|
||
|
|
wil_dbg_fw(wil, " gw4 write[%3d] [0x%08x] <==\n", i, a);
|
||
|
|
wil_hex_dump_fw(" val ", DUMP_PREFIX_NONE, 16, 4, v,
|
||
|
|
sizeof(v), false);
|
||
|
|
|
||
|
|
for (k = 0; k < ARRAY_SIZE(block->value); k++)
|
||
|
|
writel(v[k], gwa_val[k]);
|
||
|
|
rc = gw_write(wil, gwa_addr, gwa_cmd, gwa_ctl, gw_cmd, a);
|
||
|
|
if (rc)
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct {
|
||
|
|
int type;
|
||
|
|
int (*load_handler)(struct wil6210_priv *wil, const void *data,
|
||
|
|
size_t size);
|
||
|
|
int (*parse_handler)(struct wil6210_priv *wil, const void *data,
|
||
|
|
size_t size);
|
||
|
|
} wil_fw_handlers[] = {
|
||
|
|
{wil_fw_type_comment, fw_handle_comment, fw_handle_capabilities},
|
||
|
|
{wil_fw_type_data, fw_handle_data, fw_ignore_section},
|
||
|
|
{wil_fw_type_fill, fw_handle_fill, fw_ignore_section},
|
||
|
|
/* wil_fw_type_action */
|
||
|
|
/* wil_fw_type_verify */
|
||
|
|
{wil_fw_type_file_header, fw_handle_file_header,
|
||
|
|
fw_handle_file_header},
|
||
|
|
{wil_fw_type_direct_write, fw_handle_direct_write, fw_ignore_section},
|
||
|
|
{wil_fw_type_gateway_data, fw_handle_gateway_data, fw_ignore_section},
|
||
|
|
{wil_fw_type_gateway_data4, fw_handle_gateway_data4,
|
||
|
|
fw_ignore_section},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int wil_fw_handle_record(struct wil6210_priv *wil, int type,
|
||
|
|
const void *data, size_t size, bool load)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < ARRAY_SIZE(wil_fw_handlers); i++)
|
||
|
|
if (wil_fw_handlers[i].type == type)
|
||
|
|
return load ?
|
||
|
|
wil_fw_handlers[i].load_handler(
|
||
|
|
wil, data, size) :
|
||
|
|
wil_fw_handlers[i].parse_handler(
|
||
|
|
wil, data, size);
|
||
|
|
|
||
|
|
wil_err_fw(wil, "unknown record type: %d\n", type);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* wil_fw_process - process section from FW file
|
||
|
|
* if load is true: Load the FW and uCode code and data to the
|
||
|
|
* corresponding device memory regions,
|
||
|
|
* otherwise only parse and look for capabilities
|
||
|
|
*
|
||
|
|
* Return error code
|
||
|
|
*/
|
||
|
|
static int wil_fw_process(struct wil6210_priv *wil, const void *data,
|
||
|
|
size_t size, bool load)
|
||
|
|
{
|
||
|
|
int rc = 0;
|
||
|
|
const struct wil_fw_record_head *hdr;
|
||
|
|
size_t s, hdr_sz;
|
||
|
|
|
||
|
|
for (hdr = data;; hdr = (const void *)hdr + s, size -= s) {
|
||
|
|
if (size < sizeof(*hdr))
|
||
|
|
break;
|
||
|
|
hdr_sz = le32_to_cpu(hdr->size);
|
||
|
|
s = sizeof(*hdr) + hdr_sz;
|
||
|
|
if (s > size)
|
||
|
|
break;
|
||
|
|
if (hdr_sz % 4) {
|
||
|
|
wil_err_fw(wil, "unaligned record size: %zu\n",
|
||
|
|
hdr_sz);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
rc = wil_fw_handle_record(wil, le16_to_cpu(hdr->type),
|
||
|
|
&hdr[1], hdr_sz, load);
|
||
|
|
if (rc)
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
if (size) {
|
||
|
|
wil_err_fw(wil, "unprocessed bytes: %zu\n", size);
|
||
|
|
if (size >= sizeof(*hdr)) {
|
||
|
|
wil_err_fw(wil, "Stop at offset %ld"
|
||
|
|
" record type %d [%zd bytes]\n",
|
||
|
|
(long)((const void *)hdr - data),
|
||
|
|
le16_to_cpu(hdr->type), hdr_sz);
|
||
|
|
}
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* wil_request_firmware - Request firmware
|
||
|
|
*
|
||
|
|
* Request firmware image from the file
|
||
|
|
* If load is true, load firmware to device, otherwise
|
||
|
|
* only parse and extract capabilities
|
||
|
|
*
|
||
|
|
* Return error code
|
||
|
|
*/
|
||
|
|
int wil_request_firmware(struct wil6210_priv *wil, const char *name,
|
||
|
|
bool load)
|
||
|
|
{
|
||
|
|
int rc, rc1;
|
||
|
|
const struct firmware *fw;
|
||
|
|
size_t sz;
|
||
|
|
const void *d;
|
||
|
|
|
||
|
|
rc = request_firmware(&fw, name, wil_to_dev(wil));
|
||
|
|
if (rc) {
|
||
|
|
wil_err_fw(wil, "Failed to load firmware %s\n", name);
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
wil_dbg_fw(wil, "Loading <%s>, %zu bytes\n", name, fw->size);
|
||
|
|
|
||
|
|
for (sz = fw->size, d = fw->data; sz; sz -= rc1, d += rc1) {
|
||
|
|
rc1 = wil_fw_verify(wil, d, sz);
|
||
|
|
if (rc1 < 0) {
|
||
|
|
rc = rc1;
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
rc = wil_fw_process(wil, d, rc1, load);
|
||
|
|
if (rc < 0)
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
out:
|
||
|
|
release_firmware(fw);
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* wil_fw_verify_file_exists - checks if firmware file exist
|
||
|
|
*
|
||
|
|
* @wil: driver context
|
||
|
|
* @name: firmware file name
|
||
|
|
*
|
||
|
|
* return value - boolean, true for success, false for failure
|
||
|
|
*/
|
||
|
|
bool wil_fw_verify_file_exists(struct wil6210_priv *wil, const char *name)
|
||
|
|
{
|
||
|
|
const struct firmware *fw;
|
||
|
|
int rc;
|
||
|
|
|
||
|
|
rc = request_firmware(&fw, name, wil_to_dev(wil));
|
||
|
|
if (!rc)
|
||
|
|
release_firmware(fw);
|
||
|
|
else
|
||
|
|
wil_dbg_fw(wil, "<%s> not available: %d\n", name, rc);
|
||
|
|
return !rc;
|
||
|
|
}
|