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/*
* Copyright (C) 2010 Samsung Electronics.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#ifndef __MODEM_LINK_DEVICE_DPRAM_H__
#define __MODEM_LINK_DEVICE_DPRAM_H__
#include "modem_link_device_memory.h"
/*
magic_code +
access_enable +
fmt_tx_head + fmt_tx_tail + fmt_tx_buff +
raw_tx_head + raw_tx_tail + raw_tx_buff +
fmt_rx_head + fmt_rx_tail + fmt_rx_buff +
raw_rx_head + raw_rx_tail + raw_rx_buff +
mbx_cp2ap +
mbx_ap2cp
= 2 +
2 +
2 + 2 + 1336 +
2 + 2 + 4564 +
2 + 2 + 1336 +
2 + 2 + 9124 +
2 +
2
= 16384
*/
#define DP_16K_FMT_TX_BUFF_SZ 1336
#define DP_16K_RAW_TX_BUFF_SZ 4564
#define DP_16K_FMT_RX_BUFF_SZ 1336
#define DP_16K_RAW_RX_BUFF_SZ 9124
struct dpram_ipc_16k_map {
u16 magic;
u16 access;
u16 fmt_tx_head;
u16 fmt_tx_tail;
u8 fmt_tx_buff[DP_16K_FMT_TX_BUFF_SZ];
u16 raw_tx_head;
u16 raw_tx_tail;
u8 raw_tx_buff[DP_16K_RAW_TX_BUFF_SZ];
u16 fmt_rx_head;
u16 fmt_rx_tail;
u8 fmt_rx_buff[DP_16K_FMT_RX_BUFF_SZ];
u16 raw_rx_head;
u16 raw_rx_tail;
u8 raw_rx_buff[DP_16K_RAW_RX_BUFF_SZ];
u16 mbx_cp2ap;
u16 mbx_ap2cp;
};
struct dpram_sfr {
u16 __iomem *int2cp;
u16 __iomem *int2ap;
u16 __iomem *clr_int2ap;
u16 __iomem *reset;
u16 __iomem *msg2cp;
u16 __iomem *msg2ap;
};
struct dpram_ext_op;
struct dpram_link_device {
struct link_device ld;
/* DPRAM address and size */
enum dpram_type type; /* DPRAM type */
u8 __iomem *base; /* Virtual address of DPRAM */
u32 size; /* DPRAM size */
/* Whether or not this DPRAM can go asleep */
bool need_wake_up;
/* Whether or not this DPRAM needs interrupt clearing */
bool need_intr_clear;
/* DPRAM SFR */
u8 __iomem *sfr_base; /* Virtual address of SFR */
struct dpram_sfr sfr;
/* DPRAM IRQ GPIO# */
unsigned gpio_dpram_int;
/* DPRAM IRQ from CP */
int irq;
unsigned long irq_flags;
char irq_name[MIF_MAX_NAME_LEN];
/* Link to DPRAM control functions dependent on each platform */
struct modemlink_dpram_control *dpctl;
/* Physical configuration -> logical configuration */
union {
struct dpram_boot_map bt_map;
struct qc_dpram_boot_map qc_bt_map;
};
struct dpram_dload_map dl_map;
struct dpram_uload_map ul_map;
/* IPC device map */
struct dpram_ipc_map ipc_map;
/* Pointers (aliases) to IPC device map */
u16 __iomem *magic;
u16 __iomem *access;
struct dpram_ipc_device *dev[MAX_IPC_DEV];
u16 __iomem *mbx2ap;
u16 __iomem *mbx2cp;
/* Wakelock for DPRAM device */
struct wake_lock wlock;
char wlock_name[MIF_MAX_NAME_LEN];
/* For booting */
unsigned boot_start_complete;
struct completion dpram_init_cmd;
struct completion modem_pif_init_done;
/* For UDL */
struct tasklet_struct ul_tsk;
struct tasklet_struct dl_tsk;
struct completion udl_start_complete;
struct completion udl_cmd_complete;
struct dpram_udl_check udl_check;
struct dpram_udl_param udl_param;
/* For CP crash dump */
struct timer_list crash_ack_timer;
struct completion crash_start_complete;
struct completion crash_recv_done;
struct timer_list crash_timer;
int crash_rcvd; /* Count of CP crash dump packets received */
/* For locking TX process */
spinlock_t tx_lock[MAX_IPC_DEV];
/* For TX under DPRAM flow control */
struct completion req_ack_cmpl[MAX_IPC_DEV];
/* For efficient RX process */
struct tasklet_struct rx_tsk;
struct mif_rxb_queue rxbq[MAX_IPC_DEV];
struct io_device *iod[MAX_IPC_DEV];
bool rx_with_skb;
/* For retransmission after buffer full state */
atomic_t res_required[MAX_IPC_DEV];
/* For wake-up/sleep control */
atomic_t accessing;
/* Multi-purpose miscellaneous buffer */
u8 *buff;
/* DPRAM IPC initialization status */
int init_status;
/* Alias to device-specific IOCTL function */
int (*ext_ioctl)(struct dpram_link_device *dpld, struct io_device *iod,
unsigned int cmd, unsigned long arg);
/* Alias to DPRAM IRQ handler */
irqreturn_t (*irq_handler)(int irq, void *data);
/* For DPRAM dump */
void (*dpram_dump)(struct link_device *ld, char *buff);
#ifndef CONFIG_SAMSUNG_PRODUCT_SHIP
char dump_path[MIF_MAX_PATH_LEN];
char trace_path[MIF_MAX_PATH_LEN];
struct trace_queue dump_list;
struct trace_queue trace_list;
struct delayed_work dump_dwork;
struct delayed_work trace_dwork;
#endif
/* Common operations for each DPRAM */
u16 (*recv_intr)(struct dpram_link_device *dpld);
void (*send_intr)(struct dpram_link_device *dpld, u16 mask);
u16 (*get_magic)(struct dpram_link_device *dpld);
void (*set_magic)(struct dpram_link_device *dpld, u16 value);
u16 (*get_access)(struct dpram_link_device *dpld);
void (*set_access)(struct dpram_link_device *dpld, u16 value);
u32 (*get_tx_head)(struct dpram_link_device *dpld, int id);
u32 (*get_tx_tail)(struct dpram_link_device *dpld, int id);
void (*set_tx_head)(struct dpram_link_device *dpld, int id, u32 head);
void (*set_tx_tail)(struct dpram_link_device *dpld, int id, u32 tail);
u8 *(*get_tx_buff)(struct dpram_link_device *dpld, int id);
u32 (*get_tx_buff_size)(struct dpram_link_device *dpld, int id);
u32 (*get_rx_head)(struct dpram_link_device *dpld, int id);
u32 (*get_rx_tail)(struct dpram_link_device *dpld, int id);
void (*set_rx_head)(struct dpram_link_device *dpld, int id, u32 head);
void (*set_rx_tail)(struct dpram_link_device *dpld, int id, u32 tail);
u8 *(*get_rx_buff)(struct dpram_link_device *dpld, int id);
u32 (*get_rx_buff_size)(struct dpram_link_device *dpld, int id);
u16 (*get_mask_req_ack)(struct dpram_link_device *dpld, int id);
u16 (*get_mask_res_ack)(struct dpram_link_device *dpld, int id);
u16 (*get_mask_send)(struct dpram_link_device *dpld, int id);
void (*ipc_rx_handler)(struct dpram_link_device *dpld, u16 int2ap);
/* Extended operations for various modems */
struct dpram_ext_op *ext_op;
};
/* converts from struct link_device* to struct xxx_link_device* */
#define to_dpram_link_device(linkdev) \
container_of(linkdev, struct dpram_link_device, ld)
struct dpram_ext_op {
int exist;
void (*init_boot_map)(struct dpram_link_device *dpld);
void (*init_dl_map)(struct dpram_link_device *dpld);
void (*init_ul_map)(struct dpram_link_device *dpld);
void (*init_ipc_map)(struct dpram_link_device *dpld);
int (*download_binary)(struct dpram_link_device *dpld,
struct sk_buff *skb);
void (*cp_start_handler)(struct dpram_link_device *dpld);
void (*crash_log)(struct dpram_link_device *dpld);
int (*dump_start)(struct dpram_link_device *dpld);
int (*dump_update)(struct dpram_link_device *dpld, void *arg);
int (*ioctl)(struct dpram_link_device *dpld, struct io_device *iod,
unsigned int cmd, unsigned long arg);
irqreturn_t (*irq_handler)(int irq, void *data);
void (*clear_intr)(struct dpram_link_device *dpld);
int (*wakeup)(struct dpram_link_device *dpld);
void (*sleep)(struct dpram_link_device *dpld);
};
struct dpram_ext_op *dpram_get_ext_op(enum modem_t modem);
#endif
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