mirror of
https://github.com/torvalds/linux.git
synced 2024-12-28 22:02:28 +00:00
3194c68701
Implement firmware download protocol for Marvell NFC controllers. This protocol is based on NCI frames that's why parts of its implementation use some NCI generic functions. Signed-off-by: Vincent Cuissard <cuissard@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/**
|
|
* Marvell NFC driver: Firmware downloader
|
|
*
|
|
* Copyright (C) 2015, Marvell International Ltd.
|
|
*
|
|
* This software file (the "File") is distributed by Marvell International
|
|
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
|
|
* (the "License"). You may use, redistribute and/or modify this File in
|
|
* accordance with the terms and conditions of the License, a copy of which
|
|
* is available on the worldwide web at
|
|
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
|
|
*
|
|
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
|
|
* this warranty disclaimer.
|
|
**/
|
|
|
|
#ifndef __NFCMRVL_FW_DNLD_H__
|
|
#define __NFCMRVL_FW_DNLD_H__
|
|
|
|
#include <linux/workqueue.h>
|
|
|
|
#define NFCMRVL_FW_MAGIC 0x88888888
|
|
|
|
#define NCI_OP_PROP_BOOT_CMD 0x3A
|
|
|
|
#define NCI_CORE_LC_PROP_FW_DL 0xFD
|
|
#define NCI_CORE_LC_CONNID_PROP_FW_DL 0x02
|
|
|
|
#define HELPER_CMD_ENTRY_POINT 0x04
|
|
#define HELPER_CMD_PACKET_FORMAT 0xA5
|
|
#define HELPER_ACK_PACKET_FORMAT 0x5A
|
|
#define HELPER_RETRY_REQUESTED (1 << 15)
|
|
|
|
struct nfcmrvl_private;
|
|
|
|
struct nfcmrvl_fw_uart_config {
|
|
uint8_t flow_control;
|
|
uint32_t baudrate;
|
|
} __packed;
|
|
|
|
struct nfcmrvl_fw_i2c_config {
|
|
uint32_t clk;
|
|
} __packed;
|
|
|
|
struct nfcmrvl_fw_spi_config {
|
|
uint32_t clk;
|
|
} __packed;
|
|
|
|
struct nfcmrvl_fw_binary_config {
|
|
uint32_t offset;
|
|
union {
|
|
void *config;
|
|
struct nfcmrvl_fw_uart_config uart;
|
|
struct nfcmrvl_fw_i2c_config i2c;
|
|
struct nfcmrvl_fw_spi_config spi;
|
|
uint8_t reserved[64];
|
|
};
|
|
} __packed;
|
|
|
|
struct nfcmrvl_fw {
|
|
uint32_t magic;
|
|
uint32_t ref_clock;
|
|
uint32_t phy;
|
|
struct nfcmrvl_fw_binary_config bootrom;
|
|
struct nfcmrvl_fw_binary_config helper;
|
|
struct nfcmrvl_fw_binary_config firmware;
|
|
uint8_t reserved[64];
|
|
} __packed;
|
|
|
|
struct nfcmrvl_fw_dnld {
|
|
char name[NFC_FIRMWARE_NAME_MAXSIZE + 1];
|
|
const struct firmware *fw;
|
|
|
|
const struct nfcmrvl_fw *header;
|
|
const struct nfcmrvl_fw_binary_config *binary_config;
|
|
|
|
int state;
|
|
int substate;
|
|
int offset;
|
|
int chunk_len;
|
|
|
|
struct workqueue_struct *rx_wq;
|
|
struct work_struct rx_work;
|
|
struct sk_buff_head rx_q;
|
|
|
|
struct timer_list timer;
|
|
};
|
|
|
|
int nfcmrvl_fw_dnld_init(struct nfcmrvl_private *priv);
|
|
void nfcmrvl_fw_dnld_deinit(struct nfcmrvl_private *priv);
|
|
void nfcmrvl_fw_dnld_abort(struct nfcmrvl_private *priv);
|
|
int nfcmrvl_fw_dnld_start(struct nci_dev *ndev, const char *firmware_name);
|
|
void nfcmrvl_fw_dnld_recv_frame(struct nfcmrvl_private *priv,
|
|
struct sk_buff *skb);
|
|
|
|
#endif
|