/*
* i1480 Device Firmware Upload
*
* Copyright (C) 2005-2006 Intel Corporation
* Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* This driver is the firmware uploader for the Intel Wireless UWB
* Link 1480 device (both in the USB and PCI incarnations).
*
* The process is quite simple: we stop the device, write the firmware
* to its memory and then restart it. Wait for the device to let us
* know it is done booting firmware. Ready.
*
* We might have to upload before or after a phy firmware (which might
* be done in two methods, using a normal firmware image or through
* the MPI port).
*
* Because USB and PCI use common methods, we just make ops out of the
* common operations (read, write, wait_init_done and cmd) and
* implement them in usb.c and pci.c.
*
* The flow is (some parts omitted):
*
* i1480_{usb,pci}_probe() On enumerate/discovery
* i1480_fw_upload()
* i1480_pre_fw_upload()
* __mac_fw_upload()
* fw_hdrs_load()
* mac_fw_hdrs_push()
* i1480->write() [i1480_{usb,pci}_write()]
* i1480_fw_cmp()
* i1480->read() [i1480_{usb,pci}_read()]
* i1480_mac_fw_upload()
* __mac_fw_upload()
* i1480->setup(()
* i1480->wait_init_done()
* i1480_cmd_reset()
* i1480->cmd() [i1480_{usb,pci}_cmd()]
* ...
* i1480_phy_fw_upload()
* request_firmware()
* i1480_mpi_write()
* i1480->cmd() [i1480_{usb,pci}_cmd()]
*
* Once the probe function enumerates the device and uploads the
* firmware, we just exit with -ENODEV, as we don't really want to
* attach to the device.
*/
#ifndef __i1480_DFU_H__
#define __i1480_DFU_H__
#include <linux/uwb/spec.h>
#include <linux/types.h>
#include <linux/completion.h>
#define i1480_FW_UPLOAD_MODE_MASK (cpu_to_le32(0x00000018))
#if i1480_FW > 0x00000302
#define i1480_RCEB_EXTENDED
#endif
struct uwb_rccb;
struct uwb_rceb;
/*
* Common firmware upload handlers
*
* Normally you embed this struct in another one specific to your hw.
*
* @write Write to device's memory from buffer.
* @read Read from device's memory to i1480->evt_buf.
* @setup Setup device after basic firmware is uploaded
* @wait_init_done
* Wait for the device to send a notification saying init
* is done.
* @cmd FOP for issuing the command to the hardware. The
* command data is contained in i1480->cmd_buf and the size
* is supplied as an argument. The command replied is put
* in i1480->evt_buf and the size in i1480->evt_result (or if
* an error, a < 0 errno code).
*
* @cmd_buf Memory buffer used to send commands to the device.
* Allocated by the upper layers i1480_fw_upload().
* Size has to be @buf_size.
* @evt_buf Memory buffer used to place the async notifications
* received by the hw. Allocated by the upper layers
* i1480_fw_upload().
* Size has to be @buf_size.
* @cmd_complete
* Low level driver uses this to notify code waiting afor
* an event that the event has arrived and data is in
* i1480->evt_buf (and size/result in i1480->evt_result).
* @hw_rev
* Use this value to activate dfu code to support new revisions
* of hardware. i1480_init() sets this to a default value.
* It should be updated by the USB and PCI code.
*/
struct i1480 {
struct device *dev;
int (*write)(struct i1480 *, u32 addr, const void *, size_t);
int (*read)(struct i1480 *, u32 addr, size_t);
int (*rc_setup)(struct i1480 *);
void (*rc_release)(struct i1480 *);
int (*wait_init_done)(struct i1480 *);
int (*cmd)(struct i1480 *, const char *cmd_name, size_t cmd_size);
const char *pre_fw_name;
const char *mac_fw_name;
const char *mac_fw_name_deprecate; /* FIXME: Will go away */
const char *phy_fw_name;
u8 hw_rev;
size_t buf_size; /* size of both evt_buf and cmd_buf */
void *evt_buf, *cmd_buf;
ssize_t evt_result;
struct completion evt_complete;
};
static inline
void i1480_init(struct i1480 *i1480)
{
i1480->hw_rev = 1;
init_completion(&i1480->evt_complete);
}
extern int i1480_fw_upload(struct i1480 *);
extern int i1480_pre_fw_upload(struct i1480 *);
extern int i1480_mac_fw_upload(struct i1480 *);
extern int i1480_phy_fw_upload(struct i1480 *);
extern ssize_t i1480_cmd(struct i1480 *, const char *, size_t, size_t);
extern int i1480_rceb_check(const struct i1480 *,
const struct uwb_rceb *, const char *, u8,
u8, unsigned);
enum {
/* Vendor specific command type */
i1480_CET_VS1 = 0xfd,
/* i1480 commands */
i1480_CMD_SET_IP_MAS = 0x000e,
i1480_CMD_GET_MAC_PHY_INFO = 0x0003,
i1480_CMD_MPI_WRITE = 0x000f,
i1480_CMD_MPI_READ = 0x0010,
/* i1480 events */
#if i1480_FW > 0x00000302
i1480_EVT_CONFIRM = 0x0002,
i1480_EVT_RM_INIT_DONE = 0x0101,
i1480_EVT_DEV_ADD = 0x0103,
i1480_EVT_DEV_RM = 0x0104,
i1480_EVT_DEV_ID_CHANGE = 0x0105,
i1480_EVT_GET_MAC_PHY_INFO = i1480_CMD_GET_MAC_PHY_INFO,
#else
i1480_EVT_CONFIRM = 0x0002,
i1480_EVT_RM_INIT_DONE = 0x0101,
i1480_EVT_DEV_ADD = 0x0103,
i1480_EVT_DEV_RM = 0x0104,
i1480_EVT_DEV_ID_CHANGE = 0x0105,
i1480_EVT_GET_MAC_PHY_INFO = i1480_EVT_CONFIRM,
#endif
};
struct i1480_evt_confirm {
struct uwb_rceb rceb;
#ifdef i1480_RCEB_EXTENDED
__le16 wParamLength;
#endif
u8 bResultCode;
} __attribute__((packed));
struct i1480_rceb {
struct uwb_rceb rceb;
#ifdef i1480_RCEB_EXTENDED
__le16 wParamLength;
#endif
} __attribute__((packed));
/**
* Get MAC & PHY Information confirm event structure
*
* Confirm event returned by the command.
*/
struct i1480_evt_confirm_GMPI {
#if i1480_FW > 0x00000302
struct uwb_rceb rceb;
__le16 wParamLength;
__le16 status;
u8 mac_addr[6]; /* EUI-64 bit IEEE address [still 8 bytes?] */
u8 dev_addr[2];
__le16 mac_fw_rev; /* major = v >> 8; minor = v & 0xff */
u8 hw_rev;
u8 phy_vendor;
u8 phy_rev; /* major v = >> 8; minor = v & 0xff */
__le16 mac_caps;
u8 phy_caps[3];
u8 key_stores;
__le16 mcast_addr_stores;
u8 sec_mode_supported;
#else
struct uwb_rceb rceb;
u8 status;
u8 mac_addr[8]; /* EUI-64 bit IEEE address [still 8 bytes?] */
u8 dev_addr[2];
__le16 mac_fw_rev; /* major = v >> 8; minor = v & 0xff */
__le16 phy_fw_rev; /* major v = >> 8; minor = v & 0xff */
__le16 mac_caps;
u8 phy_caps;
u8 key_stores;
__le16 mcast_addr_stores;
u8 sec_mode_supported;
#endif
} __attribute__((packed));
struct i1480_cmd_mpi_write {
struct uwb_rccb rccb;
__le16 size;
u8 data[];
};
struct i1480_cmd_mpi_read {
struct uwb_rccb rccb;
__le16 size;
struct {
u8 page, offset;
} __attribute__((packed)) data[];
} __attribute__((packed));
struct i1480_evt_mpi_read {
struct uwb_rceb rceb;
#ifdef i1480_RCEB_EXTENDED
__le16 wParamLength;
#endif
u8 bResultCode;
__le16 size;
struct {
u8 page, offset, value;
} __attribute__((packed)) data[];
} __attribute__((packed));
#endif /* #ifndef __i1480_DFU_H__ */