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/*****************************************************************************
*
* Filename:
* ---------
* eemcs_sysmsg.c
*
* Project:
* --------
* ALPS
*
* Description:
* ------------
* MT6582 CCCI SYSTEM MESSAGE
*
* Author:
* -------
*
*
****************************************************************************/
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/cdev.h>
#include <linux/kfifo.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/uaccess.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/semaphore.h>
#include "eemcs_kal.h"
#include "eemcs_ccci.h"
#include "eemcs_debug.h"
#include "eemcs_char.h"
#include "eemcs_file_ops.h"
#include "eemcs_sysmsg.h"
#include "mach/mtk_eemcs_helper.h"
#include "eemcs_state.h"
static spinlock_t sysmsg_fifo_lock = __SPIN_LOCK_UNLOCKED(sysmsg_fifo_lock);
static struct kfifo sysmsg_fifo;
struct work_struct sysmsg_work;
//#define __EEMCS_SYSMSG_IT__
#ifdef __EEMCS_SYSMSG_IT__
#define TEST_MSG_ID_MD2AP (0x113)
#define TEST_MSG_ID_AP2MD (0x107)
#endif
//------------For MD get Battery info from AP------------//
void send_battery_info(int md_id)
{
int ret = 0;
unsigned int para = 0;
unsigned int resv = 0;
unsigned int msg_id = EXT_MD_GET_BATTERY_INFO;
resv = eemcs_get_bat_info(para);
ret = eemcs_notify_md_by_sys_msg(md_id, msg_id, resv);
DBGLOG(SMSG, INF, "send bat vol(%d) to md: %d", resv, ret);
return;
}
int eemcs_md_get_battery_info(int md_id, int data)
{
DBGLOG(SMSG,DBG,"request to send battery voltage to md");
send_battery_info(md_id);
return 0;
}
//--------------end-------------------------//
//------------For MD send sim type msg to AP------------//
int enable_get_sim_type(int md_id, unsigned int enable)
{
int ret = 0;
unsigned int msg_id = EXT_MD_SIM_TYPE;
unsigned int resv = enable;
ret = eemcs_notify_md_by_sys_msg(MD_SYS5, msg_id, resv);
DBGLOG(SMSG,INF,"enable_get_sim_type(enable=%d): %d", resv, ret);
return ret;
}
int sim_type = 0xEEEEEEEE; //sim_type(MCC/MNC) send by MD wouldn't be 0xEEEEEEEE
int set_sim_type(int md_id, int data)
{
int ret = 0;
sim_type = data;
DBGLOG(SMSG,INF,"set_sim_type(type=0x%x): %d", sim_type, ret);
return ret;
}
int get_sim_type(int md_id, int *p_sim_type)
{
*p_sim_type = sim_type;
if (sim_type == 0xEEEEEEEE)
{
DBGLOG(SMSG,ERR,"get_sim_type fail: md not send sim type yet, type=0x%x", sim_type);
return -1;
} else
DBGLOG(SMSG,INF,"get_sim_type: type=0x%x", sim_type);
return 0;
}
//--------------end-------------------------//
static void eemcs_sysmsg_work(struct work_struct *work)
{
//unsigned char *p_rdata;
struct sk_buff *skb;
CCCI_BUFF_T *p_cccih = NULL;
int md_id = MD_SYS5;
DBGLOG(SMSG, DBG, "====> %s", FUNC_NAME);
while(kfifo_out(&sysmsg_fifo, &skb, sizeof(unsigned int)))
{
p_cccih = (CCCI_BUFF_T *)skb->data;
DBGLOG(SMSG, DBG, "eemcs_sysmsg_work, msg: %08X, %08X, %08X, %08X\n", \
p_cccih->data[0], p_cccih->data[1], p_cccih->channel, p_cccih->reserved);
eemcs_exec_ccci_sys_call_back(md_id, p_cccih->data[1], p_cccih->reserved);
dev_kfree_skb(skb);
}
DBGLOG(SMSG, DBG, "<==== %s", FUNC_NAME);
}
static int send_eemcs_system_ch_msg(int md_id, unsigned int msg_id, unsigned int data)
{
CCCI_BUFF_T * ccci_header;
struct sk_buff *new_skb;
unsigned int skb_len = CCCI_SYSMSG_HEADER_ROOM;
int ret = KAL_FAIL;
DBGLOG(SMSG, DBG, "send_eemcs_system_ch_msg");
if (check_device_state() != EEMCS_BOOTING_DONE) {//modem not ready
DBGLOG(CHAR, ERR, "send sys msg(id=%d) fail when modem not ready", msg_id);
return -ENODEV;
}
//when alloc skb fail, not use __GFP_WAIT because this API may be used in interrupt context
while(NULL == (new_skb = dev_alloc_skb(skb_len)))
{
DBGLOG(SMSG, ERR, "dev_alloc_skb fail");
}
/* reserve SDIO_H and CCCI header room */
#ifdef CCCI_SDIO_HEAD
skb_reserve(new_skb, sizeof(SDIO_H));
#endif
ccci_header = (CCCI_BUFF_T *)skb_put(new_skb, sizeof(CCCI_BUFF_T)) ;
ccci_header->data[0] = 0xFFFFFFFF;
ccci_header->data[1] = msg_id;
ccci_header->channel = CH_SYS_TX;
ccci_header->reserved = data;
DBGLOG(SMSG, DBG, "send_sys_msg: 0x%08X, 0x%08X, 0x%02d, 0x%08X",
ccci_header->data[0],ccci_header->data[1] ,ccci_header->channel, ccci_header->reserved);
ret = ccci_sysmsg_ch_write_desc_to_q(ccci_header->channel, new_skb);
if(ret != KAL_SUCCESS)
{
DBGLOG(SMSG, ERR, "send_sys_msg(id=%d, data=0x%x) fail: %d", msg_id, ccci_header->reserved, ret);
dev_kfree_skb(new_skb);
} else {
DBGLOG(SMSG, DBG, "send_sys_msg(id=%d, data=0x%x) OK: %d", msg_id, ccci_header->reserved, ret);
}
return ret;
}
// eemcs_sysmsg_rx_dispatch_cb: CCCI_SYSTEM_RX message dispatch call back function for MODEM
// @skb: pointer to a CCCI buffer
// @private_data: pointer to private data of CCCI_SYSTEM_RX
KAL_INT32 eemcs_sysmsg_rx_dispatch_cb(struct sk_buff *skb, KAL_UINT32 private_data)
{
CCCI_BUFF_T *p_cccih = NULL;
DBGLOG(SMSG, DBG, "====> %s", FUNC_NAME);
if (skb){
p_cccih = (CCCI_BUFF_T *)skb->data;
DBGLOG(SMSG, INF, "sysmsg RX callback, msg: %08X, %08X, %02d, %08X\n", p_cccih->data[0], p_cccih->data[1], p_cccih->channel, p_cccih->reserved);
if (p_cccih->channel == CH_SYS_TX){
DBGLOG(SMSG, ERR, "Wrong CH for recv");
return KAL_FAIL;
}
if (kfifo_is_full(&sysmsg_fifo))
{
DBGLOG(SMSG, ERR, "kfifo full and packet drop, msg: %08X, %08X, %02d, %08X\n", \
p_cccih->data[0], p_cccih->data[1], p_cccih->channel, p_cccih->reserved);
dev_kfree_skb(skb);
return KAL_FAIL;
}
spin_lock_bh(&sysmsg_fifo_lock);
//DBGLOG(SMSG, TRA, "ready to put skb into FIFO");
kfifo_in(&sysmsg_fifo, &skb, sizeof(unsigned int));
//DBGLOG(SMSG, TRA, "after put skb into FIFO");
spin_unlock_bh(&sysmsg_fifo_lock);
DBGLOG(SMSG, DBG, "schedule sysmsg_work");
schedule_work(&sysmsg_work);
}
else
{
DBGLOG(SMSG, ERR, "skb is NULL!");
return KAL_FAIL;
}
DBGLOG(SMSG, DBG, "<==== %s", FUNC_NAME);
return KAL_SUCCESS;
}
#ifdef __EEMCS_SYSMSG_IT__
int eemcs_sysmsg_echo_test(int md_id, int data)
{
eemcs_notify_md_by_sys_msg(md_id, TEST_MSG_ID_AP2MD, data);
return 0;
}
#endif
int eemcs_sysmsg_mod_init(void)
{
int ret = 0;
DBGLOG(SMSG, DBG, "====> %s", FUNC_NAME);
ret = kfifo_alloc(&sysmsg_fifo, sizeof(unsigned)*CCCI_SYSMSG_MAX_REQ_NUM, GFP_KERNEL);
if (ret)
{
DBGLOG(SMSG, ERR, "kfifo_alloc fail: %d", ret);
return ret;
}
//related channel registration.
//RX
KAL_ASSERT(ccci_ch_register((CCCI_CHANNEL_T)CH_SYS_RX, eemcs_sysmsg_rx_dispatch_cb, 0) == KAL_SUCCESS);
//TX
eemcs_register_sys_msg_notify_func(MD_SYS5, send_eemcs_system_ch_msg);
INIT_WORK(&sysmsg_work, eemcs_sysmsg_work);
#ifdef __EEMCS_SYSMSG_IT__
eemcs_register_ccci_sys_call_back(MD_SYS5, TEST_MSG_ID_MD2AP, eemcs_sysmsg_echo_test);
#endif
//DBGLOG(SMSG, TRA, "register sys msg callback: md_get_battery_info");
eemcs_register_ccci_sys_call_back(MD_SYS5, EXT_MD_GET_BATTERY_INFO , eemcs_md_get_battery_info); //EXT_MD_GET_BATTERY_INFO == MD_GET_BATTERY_INFO == 0x105
eemcs_register_ccci_sys_call_back(MD_SYS5, EXT_MD_SIM_TYPE, set_sim_type);
DBGLOG(SMSG, DBG, "<==== %s", FUNC_NAME);
return 0;
}
void eemcs_sysmsg_exit(void)
{
DBGLOG(SMSG, INF, "====> %s", FUNC_NAME);
kfifo_free(&sysmsg_fifo);
}
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