diff options
Diffstat (limited to 'drivers/net/wimax/i2400m/sdio-fw.c')
| -rw-r--r-- | drivers/net/wimax/i2400m/sdio-fw.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/drivers/net/wimax/i2400m/sdio-fw.c b/drivers/net/wimax/i2400m/sdio-fw.c deleted file mode 100644 index 3487205d8f5..00000000000 --- a/drivers/net/wimax/i2400m/sdio-fw.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * Intel Wireless WiMAX Connection 2400m - * Firmware uploader's SDIO specifics - * - * - * Copyright (C) 2007-2008 Intel Corporation. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * - * Intel Corporation <linux-wimax@intel.com> - * Yanir Lubetkin <yanirx.lubetkin@intel.com> - * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> - * - Initial implementation - * - * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> - * - Bus generic/specific split for USB - * - * Dirk Brandewie <dirk.j.brandewie@intel.com> - * - Initial implementation for SDIO - * - * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> - * - SDIO rehash for changes in the bus-driver model - * - * THE PROCEDURE - * - * See fw.c for the generic description of this procedure. - * - * This file implements only the SDIO specifics. It boils down to how - * to send a command and waiting for an acknowledgement from the - * device. We do polled reads. - * - * COMMAND EXECUTION - * - * THe generic firmware upload code will call i2400m_bus_bm_cmd_send() - * to send commands. - * - * The SDIO devices expects things in 256 byte blocks, so it will pad - * it, compute the checksum (if needed) and pass it to SDIO. - * - * ACK RECEPTION - * - * This works in polling mode -- the fw loader says when to wait for - * data and for that it calls i2400ms_bus_bm_wait_for_ack(). - * - * This will poll the device for data until it is received. We need to - * receive at least as much bytes as where asked for (although it'll - * always be a multiple of 256 bytes). - */ -#include <linux/mmc/sdio_func.h> -#include "i2400m-sdio.h" - - -#define D_SUBMODULE fw -#include "sdio-debug-levels.h" - -/* - * Send a boot-mode command to the SDIO function - * - * We use a bounce buffer (i2400m->bm_cmd_buf) because we need to - * touch the header if the RAW flag is not set. - * - * @flags: pass thru from i2400m_bm_cmd() - * @return: cmd_size if ok, < 0 errno code on error. - * - * Note the command is padded to the SDIO block size for the device. - */ -ssize_t i2400ms_bus_bm_cmd_send(struct i2400m *i2400m, - const struct i2400m_bootrom_header *_cmd, - size_t cmd_size, int flags) -{ - ssize_t result; - struct device *dev = i2400m_dev(i2400m); - struct i2400ms *i2400ms = container_of(i2400m, struct i2400ms, i2400m); - int opcode = _cmd == NULL ? -1 : i2400m_brh_get_opcode(_cmd); - struct i2400m_bootrom_header *cmd; - /* SDIO restriction */ - size_t cmd_size_a = ALIGN(cmd_size, I2400MS_BLK_SIZE); - - d_fnstart(5, dev, "(i2400m %p cmd %p size %zu)\n", - i2400m, _cmd, cmd_size); - result = -E2BIG; - if (cmd_size > I2400M_BM_CMD_BUF_SIZE) - goto error_too_big; - - memcpy(i2400m->bm_cmd_buf, _cmd, cmd_size); /* Prep command */ - cmd = i2400m->bm_cmd_buf; - if (cmd_size_a > cmd_size) /* Zero pad space */ - memset(i2400m->bm_cmd_buf + cmd_size, 0, cmd_size_a - cmd_size); - if ((flags & I2400M_BM_CMD_RAW) == 0) { - if (WARN_ON(i2400m_brh_get_response_required(cmd) == 0)) - dev_warn(dev, "SW BUG: response_required == 0\n"); - i2400m_bm_cmd_prepare(cmd); - } - d_printf(4, dev, "BM cmd %d: %zu bytes (%zu padded)\n", - opcode, cmd_size, cmd_size_a); - d_dump(5, dev, cmd, cmd_size); - - sdio_claim_host(i2400ms->func); /* Send & check */ - result = sdio_memcpy_toio(i2400ms->func, I2400MS_DATA_ADDR, - i2400m->bm_cmd_buf, cmd_size_a); - sdio_release_host(i2400ms->func); - if (result < 0) { - dev_err(dev, "BM cmd %d: cannot send: %ld\n", - opcode, (long) result); - goto error_cmd_send; - } - result = cmd_size; -error_cmd_send: -error_too_big: - d_fnend(5, dev, "(i2400m %p cmd %p size %zu) = %d\n", - i2400m, _cmd, cmd_size, (int) result); - return result; -} - - -/* - * Read an ack from the device's boot-mode (polling) - * - * @i2400m: - * @_ack: pointer to where to store the read data - * @ack_size: how many bytes we should read - * - * Returns: < 0 errno code on error; otherwise, amount of received bytes. - * - * The ACK for a BM command is always at least sizeof(*ack) bytes, so - * check for that. We don't need to check for device reboots - * - * NOTE: We do an artificial timeout of 1 sec over the SDIO timeout; - * this way we have control over it...there is no way that I know - * of setting an SDIO transaction timeout. - */ -ssize_t i2400ms_bus_bm_wait_for_ack(struct i2400m *i2400m, - struct i2400m_bootrom_header *ack, - size_t ack_size) -{ - int result; - ssize_t rx_size; - u64 timeout; - struct i2400ms *i2400ms = container_of(i2400m, struct i2400ms, i2400m); - struct sdio_func *func = i2400ms->func; - struct device *dev = &func->dev; - - BUG_ON(sizeof(*ack) > ack_size); - - d_fnstart(5, dev, "(i2400m %p ack %p size %zu)\n", - i2400m, ack, ack_size); - - timeout = get_jiffies_64() + 2 * HZ; - sdio_claim_host(func); - while (1) { - if (time_after64(get_jiffies_64(), timeout)) { - rx_size = -ETIMEDOUT; - dev_err(dev, "timeout waiting for ack data\n"); - goto error_timedout; - } - - /* Find the RX size, check if it fits or not -- it if - * doesn't fit, fail, as we have no way to dispose of - * the extra data. */ - rx_size = __i2400ms_rx_get_size(i2400ms); - if (rx_size < 0) - goto error_rx_get_size; - result = -ENOSPC; /* Check it fits */ - if (rx_size < sizeof(*ack)) { - rx_size = -EIO; - dev_err(dev, "HW BUG? received is too small (%zu vs " - "%zu needed)\n", sizeof(*ack), rx_size); - goto error_too_small; - } - if (rx_size > I2400M_BM_ACK_BUF_SIZE) { - dev_err(dev, "SW BUG? BM_ACK_BUF is too small (%u vs " - "%zu needed)\n", I2400M_BM_ACK_BUF_SIZE, - rx_size); - goto error_too_small; - } - - /* Read it */ - result = sdio_memcpy_fromio(func, i2400m->bm_ack_buf, - I2400MS_DATA_ADDR, rx_size); - if (result == -ETIMEDOUT || result == -ETIME) - continue; - if (result < 0) { - dev_err(dev, "BM SDIO receive (%zu B) failed: %d\n", - rx_size, result); - goto error_read; - } else - break; - } - rx_size = min((ssize_t)ack_size, rx_size); - memcpy(ack, i2400m->bm_ack_buf, rx_size); -error_read: -error_too_small: -error_rx_get_size: -error_timedout: - sdio_release_host(func); - d_fnend(5, dev, "(i2400m %p ack %p size %zu) = %ld\n", - i2400m, ack, ack_size, (long) rx_size); - return rx_size; -} |