drivers/misc/mediatek/eccci/modem_cldma.h

#ifndef __MODEM_CD_H__
#define __MODEM_CD_H__

#include <linux/wakelock.h>
#include <linux/dmapool.h>
#include <linux/timer.h>

#ifdef MT6290
#define MD_CD_MAJOR 190
#else
#define MD_CD_MAJOR 184
#endif
#define RING_BUFF_SIZE 16
#define QUEUE_BUDGET RING_BUFF_SIZE
#define CHECKSUM_SIZE 0		/* 12 */
#define ENABLE_CLDMA_TIMER

struct md_cd_queue {
	DIRECTION dir;
	unsigned char index;
	struct ccci_modem *modem;
	struct ccci_port *napi_port;

	struct list_head *tr_ring;	/* a "pure" ring of request, NO "head" */
	struct ccci_request *tr_done;
	/*
	 * Tx has 2 writers: 1 for packet fill and 1 for packet free, so an extra pointer and a lock
	 * is used. Tx also has 1 reader: CLDMA OUT.
	 * Rx has 1 reader: packet read&free, and 1 writer: CLDMA IN.
	 */
	struct ccci_request *tx_xmit;
	int free_slot;		/* counter, only for Tx */
	spinlock_t ring_lock;	/* lock for the counter, only for Tx */
	wait_queue_head_t req_wq;	/* only for Tx */
	int budget;
	struct work_struct cldma_work;
	struct workqueue_struct *worker;
	u16 debug_id;
};

struct md_cd_ctrl {
	struct md_cd_queue txq[8];
	struct md_cd_queue rxq[8];
	wait_queue_head_t sched_thread_wq;
	unsigned char sched_thread_kick;
	atomic_t reset_on_going;
	atomic_t wdt_enabled;
	struct wake_lock trm_wake_lock;
	struct work_struct ccif_work;
	struct timer_list bus_timeout_timer;
	struct timer_list cldma_timeout_timer;
	struct tasklet_struct cldma_irq_task;
	int channel_id;		/* CCIF channel */

	struct dma_pool *tgpd_dmapool;
	struct dma_pool *rgpd_dmapool;
	void __iomem *cldma_ap_base;
	void __iomem *cldma_md_base;
	void __iomem *md_rgu_base;
	void __iomem *md_boot_slave_Vector;
	void __iomem *md_boot_slave_Key;
	void __iomem *md_boot_slave_En;
	void __iomem *md_global_con0;
	void __iomem *md_peer_wakeup;
};

#define QUEUE_LEN(a) (sizeof(a)/sizeof(struct md_cd_queue))

struct cldma_tgpd {
	u8 gpd_flags;
	u8 gpd_checksum;
	u16 debug_id;
	u32 next_gpd_ptr;
	u32 data_buff_bd_ptr;
	u16 data_buff_len;
	u8 desc_ext_len;
	u8 non_used;
} __attribute__ ((packed));

struct cldma_rgpd {
	u8 gpd_flags;
	u8 gpd_checksum;
	u16 data_allow_len;
	u32 next_gpd_ptr;
	u32 data_buff_bd_ptr;
	u16 data_buff_len;
	u16 debug_id;
} __attribute__ ((packed));

/* runtime data format uses EEMCS's version, NOT the same with legacy CCCI */
struct modem_runtime {
	u32 Prefix;		/* "CCIF" */
	u32 Platform_L;		/* Hardware Platform String ex: "TK6516E0" */
	u32 Platform_H;
	u32 DriverVersion;	/* 0x00000923 since W09.23 */
	u32 BootChannel;	/* Channel to ACK AP with boot ready */
	u32 BootingStartID;	/* MD is booting. NORMAL_BOOT_ID or META_BOOT_ID */
#if 1				/* not using in EEMCS */
	u32 BootAttributes;	/* Attributes passing from AP to MD Booting */
	u32 BootReadyID;	/* MD response ID if boot successful and ready */
	u32 MdlogShareMemBase;
	u32 MdlogShareMemSize;
	u32 PcmShareMemBase;
	u32 PcmShareMemSize;
	u32 UartPortNum;
	u32 UartShareMemBase[8];
	u32 UartShareMemSize[8];
	u32 FileShareMemBase;
	u32 FileShareMemSize;
	u32 RpcShareMemBase;
	u32 RpcShareMemSize;
	u32 PmicShareMemBase;
	u32 PmicShareMemSize;
	u32 ExceShareMemBase;
	u32 ExceShareMemSize;
	u32 SysShareMemBase;
	u32 SysShareMemSize;
	u32 IPCShareMemBase;
	u32 IPCShareMemSize;
	u32 CheckSum;
#endif
	u32 Postfix;		/* "CCIF" */
#if 1				/* misc region */
	u32 misc_prefix;	/* "MISC" */
	u32 support_mask;
	u32 index;
	u32 next;
	u32 feature_0_val[4];
	u32 feature_1_val[4];
	u32 feature_2_val[4];
	u32 feature_3_val[4];
	u32 feature_4_val[4];
	u32 feature_5_val[4];
	u32 feature_6_val[4];
	u32 feature_7_val[4];
	u32 feature_8_val[4];
	u32 feature_9_val[4];
	u32 feature_10_val[4];
	u32 feature_11_val[4];
	u32 feature_12_val[4];
	u32 feature_13_val[4];
	u32 feature_14_val[4];
	u32 feature_15_val[4];
	u32 reserved_2[3];
	u32 misc_postfix;	/* "MISC" */
#endif
} __attribute__ ((packed));

typedef enum {
	FEATURE_NOT_EXIST = 0,
	FEATURE_NOT_SUPPORT,
	FEATURE_SUPPORT,
	FEATURE_PARTIALLY_SUPPORT,
} MISC_FEATURE_STATE;

typedef enum {
	MISC_DMA_ADDR = 0,
	MISC_32K_LESS,
	MISC_RAND_SEED,
	MISC_MD_COCLK_SETTING,
} MISC_FEATURE_ID;

typedef enum {
	MODE_UNKNOWN = -1,	/* -1 */
	MODE_IDLE,		/* 0 */
	MODE_USB,		/* 1 */
	MODE_SD,		/* 2 */
	MODE_POLLING,		/* 3 */
	MODE_WAITSD,		/* 4 */
} LOGGING_MODE;

typedef enum {
	HIF_EX_INIT = 0,	/* interrupt */
	HIF_EX_ACK,		/* AP->MD */
	HIF_EX_INIT_DONE,	/* polling */
	HIF_EX_CLEARQ_DONE,	/* interrupt */
	HIF_EX_CLEARQ_ACK,	/* AP->MD */
	HIF_EX_ALLQ_RESET,	/* polling */
} HIF_EX_STAGE;

#define MDLOGGER_FILE_PATH "/data/mdl/mdl_config"

static void inline md_cd_queue_struct_init(struct md_cd_queue *queue, struct ccci_modem *md,
					   DIRECTION dir, unsigned char index, int bg)
{
	queue->dir = OUT;
	queue->index = index;
	queue->modem = md;
	queue->napi_port = NULL;

	queue->tr_ring = NULL;
	queue->tr_done = NULL;
	queue->tx_xmit = NULL;
	queue->free_slot = RING_BUFF_SIZE;
	init_waitqueue_head(&queue->req_wq);
	queue->budget = bg;
	spin_lock_init(&queue->ring_lock);
	queue->debug_id = 0;
}

#endif				/* __MODEM_CD_H__ */