4 * MediaTek <www.MediaTek.com>
5 * hongcheng <hongcheng.xia@MediaTek.com>
7 * mt6626 FM Radio Driver
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include "fm_typedef.h"
26 #include "fm_interface.h"
27 #include "fm_stdlib.h"
30 #include "mt6626_fm_reg.h"
33 static fm_bool bRDS_FirstIn = fm_false;
34 static fm_u32 gBLER_CHK_INTERVAL = 5000;
35 static fm_u16 GOOD_BLK_CNT = 0, BAD_BLK_CNT = 0;
36 static fm_u8 BAD_BLK_RATIO = 0;
38 static struct fm_callback *fm_cb = NULL;
39 static struct fm_basic_interface *fm_bi = NULL;
42 static fm_bool mt6626_RDS_support(void);
43 static fm_s32 mt6626_RDS_enable(void);
44 static fm_s32 mt6626_RDS_disable(void);
45 static fm_u16 mt6626_RDS_Get_GoodBlock_Counter(void);
46 static fm_u16 mt6626_RDS_Get_BadBlock_Counter(void);
47 static fm_u8 mt6626_RDS_Get_BadBlock_Ratio(void);
48 static fm_u32 mt6626_RDS_Get_BlerCheck_Interval(void);
49 static void mt6626_RDS_GetData(fm_u16 *data, fm_u16 datalen);
50 static void mt6626_RDS_Init_Data(rds_t *pstRDSData);
54 static fm_bool mt6626_RDS_support(void)
59 static fm_s32 mt6626_RDS_enable(void)
63 WCN_DBG(FM_DBG | RDSC, "rds enable\n");
64 fm_bi->read(FM_RDS_CFG0, &dataRead);
65 fm_bi->write(FM_RDS_CFG0, 6); //set buf_start_th
66 fm_bi->read(FM_MAIN_CTRL, &dataRead);
67 fm_bi->write(FM_MAIN_CTRL, dataRead | (RDS_MASK));
72 static fm_s32 mt6626_RDS_disable(void)
76 WCN_DBG(FM_DBG | RDSC, "rds disable\n");
77 fm_bi->read(FM_MAIN_CTRL, &dataRead);
78 fm_bi->write(FM_MAIN_CTRL, dataRead&(~RDS_MASK));
83 static fm_u16 mt6626_RDS_Get_GoodBlock_Counter(void)
87 fm_bi->read(FM_RDS_GOODBK_CNT, &tmp_reg);
88 GOOD_BLK_CNT = tmp_reg;
89 WCN_DBG(FM_DBG | RDSC, "get good block cnt:%d\n", (fm_s32)tmp_reg);
94 static fm_u16 mt6626_RDS_Get_BadBlock_Counter(void)
98 fm_bi->read(FM_RDS_BADBK_CNT, &tmp_reg);
99 BAD_BLK_CNT = tmp_reg;
100 WCN_DBG(FM_DBG | RDSC, "get bad block cnt:%d\n", (fm_s32)tmp_reg);
105 static fm_u8 mt6626_RDS_Get_BadBlock_Ratio(void)
111 gbc = mt6626_RDS_Get_GoodBlock_Counter();
112 bbc = mt6626_RDS_Get_BadBlock_Counter();
114 if ((gbc + bbc) > 0) {
115 tmp_reg = (fm_u8)(bbc * 100 / (gbc + bbc));
120 BAD_BLK_RATIO = tmp_reg;
121 WCN_DBG(FM_DBG | RDSC, "get badblock ratio:%d\n", (fm_s32)tmp_reg);
126 static fm_s32 mt6626_RDS_BlockCounter_Reset(void)
128 mt6626_RDS_disable();
134 static fm_u32 mt6626_RDS_Get_BlerCheck_Interval(void)
136 return gBLER_CHK_INTERVAL;
139 static fm_s32 mt6626_RDS_BlerCheck(rds_t *dst)
144 static void RDS_Recovery_Handler(void)
149 fm_bi->read(FM_RDS_DATA_REG, &tempData);
150 fm_bi->read(FM_RDS_POINTER, &tempData);
151 } while (tempData & 0x3);
154 static void mt6626_RDS_GetData(fm_u16 *data, fm_u16 datalen)
156 #define RDS_GROUP_DIFF_OFS 0x007C
157 #define RDS_FIFO_DIFF 0x007F
158 #define RDS_CRC_BLK_ADJ 0x0020
159 #define RDS_CRC_CORR_CNT 0x001E
160 #define RDS_CRC_INFO 0x0001
162 fm_u16 CRC = 0, i = 0, RDS_adj = 0, RDSDataCount = 0, FM_WARorrCnt = 0;
163 fm_u16 temp = 0, OutputPofm_s32 = 0;
165 WCN_DBG(FM_DBG | RDSC, "get data\n");
166 fm_bi->read(FM_RDS_FIFO_STATUS0, &temp);
167 RDSDataCount = ((RDS_GROUP_DIFF_OFS & temp) << 2);
169 if ((temp & RDS_FIFO_DIFF) >= 4) {
170 //block A data and info handling
171 fm_bi->read(FM_RDS_INFO, &temp);
172 RDS_adj |= (temp & RDS_CRC_BLK_ADJ) << 10;
173 CRC |= (temp & RDS_CRC_INFO) << 3;
174 FM_WARorrCnt |= ((temp & RDS_CRC_CORR_CNT) << 11);
175 fm_bi->read(FM_RDS_DATA_REG, &data[0]);
177 //block B data and info handling
178 fm_bi->read(FM_RDS_INFO, &temp);
179 RDS_adj |= (temp & RDS_CRC_BLK_ADJ) << 9;
180 CRC |= (temp & RDS_CRC_INFO) << 2;
181 FM_WARorrCnt |= ((temp & RDS_CRC_CORR_CNT) << 7);
182 fm_bi->read(FM_RDS_DATA_REG, &data[1]);
184 //block C data and info handling
185 fm_bi->read(FM_RDS_INFO, &temp);
186 RDS_adj |= (temp & RDS_CRC_BLK_ADJ) << 8;
187 CRC |= (temp & RDS_CRC_INFO) << 1;
188 FM_WARorrCnt |= ((temp & RDS_CRC_CORR_CNT) << 3);
189 fm_bi->read(FM_RDS_DATA_REG, &data[2]);
191 //block D data and info handling
192 fm_bi->read(FM_RDS_INFO, &temp);
193 RDS_adj |= (temp & RDS_CRC_BLK_ADJ) << 7;
194 CRC |= (temp & RDS_CRC_INFO);
195 FM_WARorrCnt |= ((temp & RDS_CRC_CORR_CNT) >> 1);
196 fm_bi->read(FM_RDS_DATA_REG, &data[3]);
198 data[4] = FM_WARorrCnt; // CBC
199 data[5] = (CRC | RDS_adj | RDSDataCount); //CRC
201 fm_bi->read(FM_RDS_PWDI, &data[6]);
202 fm_bi->read(FM_RDS_PWDQ, &data[7]);
204 fm_bi->read(FM_RDS_POINTER, &OutputPofm_s32);
206 //Go fm_s32o RDS recovery handler while RDS output pofm_s32 doesn't align to 4 in numeric
207 if (OutputPofm_s32 & 0x3) {
208 RDS_Recovery_Handler();
217 static void mt6626_RDS_Init_Data(rds_t *pstRDSData)
219 fm_memset(pstRDSData, 0, sizeof(rds_t));
220 bRDS_FirstIn = fm_true;
222 fm_memset(pstRDSData->RT_Data.TextData, 0x20, sizeof(pstRDSData->RT_Data.TextData));
223 fm_memset(pstRDSData->PS_Data.PS, '\0', sizeof(pstRDSData->PS_Data.PS));
224 fm_memset(pstRDSData->PS_ON, 0x20, sizeof(pstRDSData->PS_ON));
227 fm_bool mt6626_RDS_OnOff(rds_t *dst, fm_bool bFlag)
229 if (mt6626_RDS_support() == fm_false) {
230 WCN_DBG(FM_ALT | RDSC, "mt6626_RDS_OnOff failed, RDS not support\n");
235 mt6626_RDS_Init_Data(dst);
238 mt6626_RDS_disable();
244 DEFINE_RDSLOG(rds_log);
246 /* mt6626_RDS_Efm_s32_Handler - response FM RDS interrupt
247 * @fm - main data structure of FM driver
248 * This function first get RDS raw data, then call RDS spec parser
250 static fm_s32 mt6626_rds_parser(rds_t *rds_dst, struct rds_rx_t *rds_raw, fm_s32 rds_size, fm_u16(*getfreq)(void))
256 mt6626_RDS_GetData(&raw.data[0].blkA, sizeof(rds_packet_t) + 2);
257 fifo_offset = (raw.data[0].crc & FM_RDS_DCO_FIFO_OFST) >> 5; //FM_RDS_DATA_CRC_FFOST
258 WCN_DBG(FM_DBG | RDSC, "RDS fifo_offset:%d\n", fifo_offset);
259 rds_log.log_in(&rds_log, &raw, sizeof(rds_packet_t) + 2*sizeof(fm_u16));
260 rds_parser(rds_dst, &raw, sizeof(rds_packet_t) + 2*sizeof(fm_u16), getfreq);
261 } while (fifo_offset > 1);
266 static fm_s32 mt6626_rds_log_get(struct rds_rx_t *dst, fm_s32 *dst_len)
268 return rds_log.log_out(&rds_log, dst, dst_len);
271 static fm_s32 mt6626_rds_gc_get(struct rds_group_cnt_t *dst, rds_t *rdsp)
273 return rds_grp_counter_get(dst, &rdsp->gc);
276 static fm_s32 mt6626_rds_gc_reset(rds_t *rdsp)
278 return rds_grp_counter_reset(&rdsp->gc);
281 fm_s32 fm_rds_ops_register(struct fm_lowlevel_ops *ops)
286 FMR_ASSERT(ops->bi.write);
287 FMR_ASSERT(ops->bi.read);
288 FMR_ASSERT(ops->bi.setbits);
289 FMR_ASSERT(ops->bi.usdelay);
292 FMR_ASSERT(ops->cb.cur_freq_get);
293 FMR_ASSERT(ops->cb.cur_freq_set);
296 ops->ri.rds_blercheck = mt6626_RDS_BlerCheck;
297 ops->ri.rds_onoff = mt6626_RDS_OnOff;
298 ops->ri.rds_parser = mt6626_rds_parser;
299 ops->ri.rds_gbc_get = mt6626_RDS_Get_GoodBlock_Counter;
300 ops->ri.rds_bbc_get = mt6626_RDS_Get_BadBlock_Counter;
301 ops->ri.rds_bbr_get = mt6626_RDS_Get_BadBlock_Ratio;
302 ops->ri.rds_bc_reset = mt6626_RDS_BlockCounter_Reset;
303 ops->ri.rds_bci_get = mt6626_RDS_Get_BlerCheck_Interval;
304 ops->ri.rds_log_get = mt6626_rds_log_get;
305 ops->ri.rds_gc_get = mt6626_rds_gc_get;
306 ops->ri.rds_gc_reset = mt6626_rds_gc_reset;
310 fm_s32 fm_rds_ops_unregister(struct fm_lowlevel_ops *ops)
317 fm_memset(&ops->ri, 0, sizeof(struct fm_rds_interface));