diff options
Diffstat (limited to 'drivers/staging/uwb/i1480/dfu/dfu.c')
| -rw-r--r-- | drivers/staging/uwb/i1480/dfu/dfu.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/drivers/staging/uwb/i1480/dfu/dfu.c b/drivers/staging/uwb/i1480/dfu/dfu.c deleted file mode 100644 index 9d51ce8faad1..000000000000 --- a/drivers/staging/uwb/i1480/dfu/dfu.c +++ /dev/null @@ -1,198 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Intel Wireless UWB Link 1480 - * Main driver - * - * Copyright (C) 2005-2006 Intel Corporation - * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> - * - * Common code for firmware upload used by the USB and PCI version; - * i1480_fw_upload() takes a device descriptor and uses the function - * pointers it provides to upload firmware and prepare the PHY. - * - * As well, provides common functions used by the rest of the code. - */ -#include "i1480-dfu.h" -#include <linux/errno.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/device.h> -#include <linux/random.h> -#include <linux/export.h> -#include "../../uwb.h" - -/* - * i1480_rceb_check - Check RCEB for expected field values - * @i1480: pointer to device for which RCEB is being checked - * @rceb: RCEB being checked - * @cmd: which command the RCEB is related to - * @context: expected context - * @expected_type: expected event type - * @expected_event: expected event - * - * If @cmd is NULL, do not print error messages, but still return an error - * code. - * - * Return 0 if @rceb matches the expected values, -EINVAL otherwise. - */ -int i1480_rceb_check(const struct i1480 *i1480, const struct uwb_rceb *rceb, - const char *cmd, u8 context, u8 expected_type, - unsigned expected_event) -{ - int result = 0; - struct device *dev = i1480->dev; - if (rceb->bEventContext != context) { - if (cmd) - dev_err(dev, "%s: unexpected context id 0x%02x " - "(expected 0x%02x)\n", cmd, - rceb->bEventContext, context); - result = -EINVAL; - } - if (rceb->bEventType != expected_type) { - if (cmd) - dev_err(dev, "%s: unexpected event type 0x%02x " - "(expected 0x%02x)\n", cmd, - rceb->bEventType, expected_type); - result = -EINVAL; - } - if (le16_to_cpu(rceb->wEvent) != expected_event) { - if (cmd) - dev_err(dev, "%s: unexpected event 0x%04x " - "(expected 0x%04x)\n", cmd, - le16_to_cpu(rceb->wEvent), expected_event); - result = -EINVAL; - } - return result; -} -EXPORT_SYMBOL_GPL(i1480_rceb_check); - - -/* - * Execute a Radio Control Command - * - * Command data has to be in i1480->cmd_buf. - * - * @returns size of the reply data filled in i1480->evt_buf or < 0 errno - * code on error. - */ -ssize_t i1480_cmd(struct i1480 *i1480, const char *cmd_name, size_t cmd_size, - size_t reply_size) -{ - ssize_t result; - struct uwb_rceb *reply = i1480->evt_buf; - struct uwb_rccb *cmd = i1480->cmd_buf; - u16 expected_event = reply->wEvent; - u8 expected_type = reply->bEventType; - u8 context; - - init_completion(&i1480->evt_complete); - i1480->evt_result = -EINPROGRESS; - do { - get_random_bytes(&context, 1); - } while (context == 0x00 || context == 0xff); - cmd->bCommandContext = context; - result = i1480->cmd(i1480, cmd_name, cmd_size); - if (result < 0) - goto error; - /* wait for the callback to report a event was received */ - result = wait_for_completion_interruptible_timeout( - &i1480->evt_complete, HZ); - if (result == 0) { - result = -ETIMEDOUT; - goto error; - } - if (result < 0) - goto error; - result = i1480->evt_result; - if (result < 0) { - dev_err(i1480->dev, "%s: command reply reception failed: %zd\n", - cmd_name, result); - goto error; - } - /* - * Firmware versions >= 1.4.12224 for IOGear GUWA100U generate a - * spurious notification after firmware is downloaded. So check whether - * the receibed RCEB is such notification before assuming that the - * command has failed. - */ - if (i1480_rceb_check(i1480, i1480->evt_buf, NULL, - 0, 0xfd, 0x0022) == 0) { - /* Now wait for the actual RCEB for this command. */ - result = i1480->wait_init_done(i1480); - if (result < 0) - goto error; - result = i1480->evt_result; - } - if (result != reply_size) { - dev_err(i1480->dev, "%s returned only %zu bytes, %zu expected\n", - cmd_name, result, reply_size); - result = -EINVAL; - goto error; - } - /* Verify we got the right event in response */ - result = i1480_rceb_check(i1480, i1480->evt_buf, cmd_name, context, - expected_type, expected_event); -error: - return result; -} -EXPORT_SYMBOL_GPL(i1480_cmd); - - -static -int i1480_print_state(struct i1480 *i1480) -{ - int result; - u32 *buf = (u32 *) i1480->cmd_buf; - - result = i1480->read(i1480, 0x80080000, 2 * sizeof(*buf)); - if (result < 0) { - dev_err(i1480->dev, "cannot read U & L states: %d\n", result); - goto error; - } - dev_info(i1480->dev, "state U 0x%08x, L 0x%08x\n", buf[0], buf[1]); -error: - return result; -} - - -/* - * PCI probe, firmware uploader - * - * _mac_fw_upload() will call rc_setup(), which needs an rc_release(). - */ -int i1480_fw_upload(struct i1480 *i1480) -{ - int result; - - result = i1480_pre_fw_upload(i1480); /* PHY pre fw */ - if (result < 0 && result != -ENOENT) { - i1480_print_state(i1480); - goto error; - } - result = i1480_mac_fw_upload(i1480); /* MAC fw */ - if (result < 0) { - if (result == -ENOENT) - dev_err(i1480->dev, "Cannot locate MAC FW file '%s'\n", - i1480->mac_fw_name); - else - i1480_print_state(i1480); - goto error; - } - result = i1480_phy_fw_upload(i1480); /* PHY fw */ - if (result < 0 && result != -ENOENT) { - i1480_print_state(i1480); - goto error_rc_release; - } - /* - * FIXME: find some reliable way to check whether firmware is running - * properly. Maybe use some standard request that has no side effects? - */ - dev_info(i1480->dev, "firmware uploaded successfully\n"); -error_rc_release: - if (i1480->rc_release) - i1480->rc_release(i1480); - result = 0; -error: - return result; -} -EXPORT_SYMBOL_GPL(i1480_fw_upload); |