summaryrefslogtreecommitdiff
path: root/drivers/uwb/i1480/dfu/phy.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/uwb/i1480/dfu/phy.c')
-rw-r--r--drivers/uwb/i1480/dfu/phy.c190
1 files changed, 0 insertions, 190 deletions
diff --git a/drivers/uwb/i1480/dfu/phy.c b/drivers/uwb/i1480/dfu/phy.c
deleted file mode 100644
index 50da4527c113..000000000000
--- a/drivers/uwb/i1480/dfu/phy.c
+++ /dev/null
@@ -1,190 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Intel Wireless UWB Link 1480
- * PHY parameters upload
- *
- * Copyright (C) 2005-2006 Intel Corporation
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
- *
- * Code for uploading the PHY parameters to the PHY through the UWB
- * Radio Control interface.
- *
- * We just send the data through the MPI interface using HWA-like
- * commands and then reset the PHY to make sure it is ok.
- */
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/firmware.h>
-#include <linux/usb/wusb.h>
-#include "i1480-dfu.h"
-
-
-/**
- * Write a value array to an address of the MPI interface
- *
- * @i1480: Device descriptor
- * @data: Data array to write
- * @size: Size of the data array
- * @returns: 0 if ok, < 0 errno code on error.
- *
- * The data array is organized into pairs:
- *
- * ADDRESS VALUE
- *
- * ADDRESS is BE 16 bit unsigned, VALUE 8 bit unsigned. Size thus has
- * to be a multiple of three.
- */
-static
-int i1480_mpi_write(struct i1480 *i1480, const void *data, size_t size)
-{
- int result;
- struct i1480_cmd_mpi_write *cmd = i1480->cmd_buf;
- struct i1480_evt_confirm *reply = i1480->evt_buf;
-
- BUG_ON(size > 480);
- result = -ENOMEM;
- cmd->rccb.bCommandType = i1480_CET_VS1;
- cmd->rccb.wCommand = cpu_to_le16(i1480_CMD_MPI_WRITE);
- cmd->size = cpu_to_le16(size);
- memcpy(cmd->data, data, size);
- reply->rceb.bEventType = i1480_CET_VS1;
- reply->rceb.wEvent = i1480_CMD_MPI_WRITE;
- result = i1480_cmd(i1480, "MPI-WRITE", sizeof(*cmd) + size, sizeof(*reply));
- if (result < 0)
- goto out;
- if (reply->bResultCode != UWB_RC_RES_SUCCESS) {
- dev_err(i1480->dev, "MPI-WRITE: command execution failed: %d\n",
- reply->bResultCode);
- result = -EIO;
- }
-out:
- return result;
-}
-
-
-/**
- * Read a value array to from an address of the MPI interface
- *
- * @i1480: Device descriptor
- * @data: where to place the read array
- * @srcaddr: Where to read from
- * @size: Size of the data read array
- * @returns: 0 if ok, < 0 errno code on error.
- *
- * The command data array is organized into pairs ADDR0 ADDR1..., and
- * the returned data in ADDR0 VALUE0 ADDR1 VALUE1...
- *
- * We generate the command array to be a sequential read and then
- * rearrange the result.
- *
- * We use the i1480->cmd_buf for the command, i1480->evt_buf for the reply.
- *
- * As the reply has to fit in 512 bytes (i1480->evt_buffer), the max amount
- * of values we can read is (512 - sizeof(*reply)) / 3
- */
-static
-int i1480_mpi_read(struct i1480 *i1480, u8 *data, u16 srcaddr, size_t size)
-{
- int result;
- struct i1480_cmd_mpi_read *cmd = i1480->cmd_buf;
- struct i1480_evt_mpi_read *reply = i1480->evt_buf;
- unsigned cnt;
-
- memset(i1480->cmd_buf, 0x69, 512);
- memset(i1480->evt_buf, 0x69, 512);
-
- BUG_ON(size > (i1480->buf_size - sizeof(*reply)) / 3);
- result = -ENOMEM;
- cmd->rccb.bCommandType = i1480_CET_VS1;
- cmd->rccb.wCommand = cpu_to_le16(i1480_CMD_MPI_READ);
- cmd->size = cpu_to_le16(3*size);
- for (cnt = 0; cnt < size; cnt++) {
- cmd->data[cnt].page = (srcaddr + cnt) >> 8;
- cmd->data[cnt].offset = (srcaddr + cnt) & 0xff;
- }
- reply->rceb.bEventType = i1480_CET_VS1;
- reply->rceb.wEvent = i1480_CMD_MPI_READ;
- result = i1480_cmd(i1480, "MPI-READ", sizeof(*cmd) + 2*size,
- sizeof(*reply) + 3*size);
- if (result < 0)
- goto out;
- if (reply->bResultCode != UWB_RC_RES_SUCCESS) {
- dev_err(i1480->dev, "MPI-READ: command execution failed: %d\n",
- reply->bResultCode);
- result = -EIO;
- goto out;
- }
- for (cnt = 0; cnt < size; cnt++) {
- if (reply->data[cnt].page != (srcaddr + cnt) >> 8)
- dev_err(i1480->dev, "MPI-READ: page inconsistency at "
- "index %u: expected 0x%02x, got 0x%02x\n", cnt,
- (srcaddr + cnt) >> 8, reply->data[cnt].page);
- if (reply->data[cnt].offset != ((srcaddr + cnt) & 0x00ff))
- dev_err(i1480->dev, "MPI-READ: offset inconsistency at "
- "index %u: expected 0x%02x, got 0x%02x\n", cnt,
- (srcaddr + cnt) & 0x00ff,
- reply->data[cnt].offset);
- data[cnt] = reply->data[cnt].value;
- }
- result = 0;
-out:
- return result;
-}
-
-
-/**
- * Upload a PHY firmware, wait for it to start
- *
- * @i1480: Device instance
- * @fw_name: Name of the file that contains the firmware
- *
- * We assume the MAC fw is up and running. This means we can use the
- * MPI interface to write the PHY firmware. Once done, we issue an
- * MBOA Reset, which will force the MAC to reset and reinitialize the
- * PHY. If that works, we are ready to go.
- *
- * Max packet size for the MPI write is 512, so the max buffer is 480
- * (which gives us 160 byte triads of MSB, LSB and VAL for the data).
- */
-int i1480_phy_fw_upload(struct i1480 *i1480)
-{
- int result;
- const struct firmware *fw;
- const char *data_itr, *data_top;
- const size_t MAX_BLK_SIZE = 480; /* 160 triads */
- size_t data_size;
- u8 phy_stat;
-
- result = request_firmware(&fw, i1480->phy_fw_name, i1480->dev);
- if (result < 0)
- goto out;
- /* Loop writing data in chunks as big as possible until done. */
- for (data_itr = fw->data, data_top = data_itr + fw->size;
- data_itr < data_top; data_itr += MAX_BLK_SIZE) {
- data_size = min(MAX_BLK_SIZE, (size_t) (data_top - data_itr));
- result = i1480_mpi_write(i1480, data_itr, data_size);
- if (result < 0)
- goto error_mpi_write;
- }
- /* Read MPI page 0, offset 6; if 0, PHY was initialized correctly. */
- result = i1480_mpi_read(i1480, &phy_stat, 0x0006, 1);
- if (result < 0) {
- dev_err(i1480->dev, "PHY: can't get status: %d\n", result);
- goto error_mpi_status;
- }
- if (phy_stat != 0) {
- result = -ENODEV;
- dev_info(i1480->dev, "error, PHY not ready: %u\n", phy_stat);
- goto error_phy_status;
- }
- dev_info(i1480->dev, "PHY fw '%s': uploaded\n", i1480->phy_fw_name);
-error_phy_status:
-error_mpi_status:
-error_mpi_write:
- release_firmware(fw);
- if (result < 0)
- dev_err(i1480->dev, "PHY fw '%s': failed to upload (%d), "
- "power cycle device\n", i1480->phy_fw_name, result);
-out:
- return result;
-}
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-19 10:37:09 +0300