forked from ~ljy/RK356X_SDK_RELEASE

blame | history | patch | commit | commitdiff
hc
2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf 
 kernel/drivers/media/dvb-frontends/drxk_hard.c
....@@ -1,20 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * drxk_hard: DRX-K DVB-C/T demodulator driver
34  *
45  * Copyright (C) 2010-2011 Digital Devices GmbH
5
- *
6
- * This program is free software; you can redistribute it and/or
7
- * modify it under the terms of the GNU General Public License
8
- * version 2 only, as published by the Free Software Foundation.
9
- *
10
- *
11
- * This program is distributed in the hope that it will be useful,
12
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
- * GNU General Public License for more details.
15
- *
16
- * To obtain the license, point your browser to
17
- * http://www.gnu.org/copyleft/gpl.html
186  */
197 
208 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
....@@ -166,17 +154,6 @@
166154 if (debug >= level)							\
167155 	printk(KERN_DEBUG KBUILD_MODNAME ": %s " fmt, __func__, ##arg);	\
168156 } while (0)
169
-
170
-
171
-static inline u32 MulDiv32(u32 a, u32 b, u32 c)
172
-{
173
-	u64 tmp64;
174
-
175
-	tmp64 = (u64) a * (u64) b;
176
-	do_div(tmp64, c);
177
-
178
-	return (u32) tmp64;
179
-}
180157 
181158 static inline u32 Frac28a(u32 a, u32 c)
182159 {
....@@ -723,7 +700,7 @@
723700 	state->m_drxk_state = DRXK_UNINITIALIZED;
724701 
725702 	/* MPEG output configuration */
726
-	state->m_enable_mpeg_output = true;	/* If TRUE; enable MPEG ouput */
703
+	state->m_enable_mpeg_output = true;	/* If TRUE; enable MPEG output */
727704 	state->m_insert_rs_byte = false;	/* If TRUE; insert RS byte */
728705 	state->m_invert_data = false;	/* If TRUE; invert DATA signals */
729706 	state->m_invert_err = false;	/* If TRUE; invert ERR signal */
....@@ -1034,8 +1011,7 @@
10341011 			retry_count += 1;
10351012 			status = read16(state, SIO_HI_RA_RAM_CMD__A,
10361013 					  &wait_cmd);
1037
-		} while ((status < 0) && (retry_count < DRXK_MAX_RETRIES)
1038
-			 && (wait_cmd != 0));
1014
+		} while ((status < 0 || wait_cmd) && (retry_count < DRXK_MAX_RETRIES));
10391015 		if (status < 0)
10401016 			goto error;
10411017 		status = read16(state, SIO_HI_RA_RAM_RES__A, p_result);
....@@ -1105,7 +1081,7 @@
11051081 
11061082 static int mpegts_configure_pins(struct drxk_state *state, bool mpeg_enable)
11071083 {
1108
-	int status = -1;
1084
+	int status;
11091085 	u16 sio_pdr_mclk_cfg = 0;
11101086 	u16 sio_pdr_mdx_cfg = 0;
11111087 	u16 err_cfg = 0;
....@@ -1474,9 +1450,11 @@
14741450 
14751451 	/* assume that the command register is ready
14761452 		since it is checked afterwards */
1477
-	for (ii = parameter_len - 1; ii >= 0; ii -= 1) {
1478
-		buffer[cnt++] = (parameter[ii] & 0xFF);
1479
-		buffer[cnt++] = ((parameter[ii] >> 8) & 0xFF);
1453
+	if (parameter) {
1454
+		for (ii = parameter_len - 1; ii >= 0; ii -= 1) {
1455
+			buffer[cnt++] = (parameter[ii] & 0xFF);
1456
+			buffer[cnt++] = ((parameter[ii] >> 8) & 0xFF);
1457
+		}
14801458 	}
14811459 	buffer[cnt++] = (cmd & 0xFF);
14821460 	buffer[cnt++] = ((cmd >> 8) & 0xFF);
....@@ -1777,7 +1755,7 @@
17771755 			goto error;
17781756 		state->m_operation_mode = OM_NONE;
17791757 		break;
1780
-	case OM_QAM_ITU_A:	/* fallthrough */
1758
+	case OM_QAM_ITU_A:
17811759 	case OM_QAM_ITU_C:
17821760 		status = mpegts_stop(state);
17831761 		if (status < 0)
....@@ -1804,7 +1782,7 @@
18041782 		if (status < 0)
18051783 			goto error;
18061784 		break;
1807
-	case OM_QAM_ITU_A:	/* fallthrough */
1785
+	case OM_QAM_ITU_A:
18081786 	case OM_QAM_ITU_C:
18091787 		dprintk(1, ": DVB-C Annex %c\n",
18101788 			(state->m_operation_mode == OM_QAM_ITU_A) ? 'A' : 'C');
....@@ -2033,7 +2011,7 @@
20332011 		fec_oc_rcn_ctl_rate = 0xC00000;
20342012 		static_clk = state->m_dvbt_static_clk;
20352013 		break;
2036
-	case OM_QAM_ITU_A:	/* fallthrough */
2014
+	case OM_QAM_ITU_A:
20372015 	case OM_QAM_ITU_C:
20382016 		fec_oc_tmd_mode = 0x0004;
20392017 		fec_oc_rcn_ctl_rate = 0xD2B4EE;	/* good for >63 Mb/s */
....@@ -3270,11 +3248,11 @@
32703248 	case OFDM_SC_RA_RAM_CMD_SET_PREF_PARAM:
32713249 	case OFDM_SC_RA_RAM_CMD_PROGRAM_PARAM:
32723250 		status |= write16(state, OFDM_SC_RA_RAM_PARAM1__A, param1);
3273
-		/* fall through - All commands using 1 parameters */
3251
+		fallthrough;	/* All commands using 1 parameters */
32743252 	case OFDM_SC_RA_RAM_CMD_SET_ECHO_TIMING:
32753253 	case OFDM_SC_RA_RAM_CMD_USER_IO:
32763254 		status |= write16(state, OFDM_SC_RA_RAM_PARAM0__A, param0);
3277
-		/* fall through - All commands using 0 parameters */
3255
+		fallthrough;	/* All commands using 0 parameters */
32783256 	case OFDM_SC_RA_RAM_CMD_GET_OP_PARAM:
32793257 	case OFDM_SC_RA_RAM_CMD_NULL:
32803258 		/* Write command */
....@@ -3782,7 +3760,7 @@
37823760 	case TRANSMISSION_MODE_AUTO:
37833761 	default:
37843762 		operation_mode |= OFDM_SC_RA_RAM_OP_AUTO_MODE__M;
3785
-		/* fall through - try first guess DRX_FFTMODE_8K */
3763
+		fallthrough;	/* try first guess DRX_FFTMODE_8K */
37863764 	case TRANSMISSION_MODE_8K:
37873765 		transmission_params |= OFDM_SC_RA_RAM_OP_PARAM_MODE_8K;
37883766 		break;
....@@ -3796,7 +3774,7 @@
37963774 	default:
37973775 	case GUARD_INTERVAL_AUTO:
37983776 		operation_mode |= OFDM_SC_RA_RAM_OP_AUTO_GUARD__M;
3799
-		/* fall through - try first guess DRX_GUARD_1DIV4 */
3777
+		fallthrough;	/* try first guess DRX_GUARD_1DIV4 */
38003778 	case GUARD_INTERVAL_1_4:
38013779 		transmission_params |= OFDM_SC_RA_RAM_OP_PARAM_GUARD_4;
38023780 		break;
....@@ -3819,7 +3797,7 @@
38193797 		operation_mode |= OFDM_SC_RA_RAM_OP_AUTO_HIER__M;
38203798 		/* try first guess SC_RA_RAM_OP_PARAM_HIER_NO */
38213799 		/* transmission_params |= OFDM_SC_RA_RAM_OP_PARAM_HIER_NO; */
3822
-		/* fall through */
3800
+		fallthrough;
38233801 	case HIERARCHY_1:
38243802 		transmission_params |= OFDM_SC_RA_RAM_OP_PARAM_HIER_A1;
38253803 		break;
....@@ -3837,7 +3815,7 @@
38373815 	case QAM_AUTO:
38383816 	default:
38393817 		operation_mode |= OFDM_SC_RA_RAM_OP_AUTO_CONST__M;
3840
-		/* fall through - try first guess DRX_CONSTELLATION_QAM64 */
3818
+		fallthrough;	/* try first guess DRX_CONSTELLATION_QAM64 */
38413819 	case QAM_64:
38423820 		transmission_params |= OFDM_SC_RA_RAM_OP_PARAM_CONST_QAM64;
38433821 		break;
....@@ -3862,13 +3840,13 @@
38623840 		WR16(dev_addr, OFDM_EC_SB_PRIOR__A,
38633841 			OFDM_EC_SB_PRIOR_HI));
38643842 		break;
3865
-	case DRX_PRIORITY_UNKNOWN:	/* fall through */
3843
+	case DRX_PRIORITY_UNKNOWN:
38663844 	default:
38673845 		status = -EINVAL;
38683846 		goto error;
38693847 	}
38703848 #else
3871
-	/* Set Priorty high */
3849
+	/* Set Priority high */
38723850 	transmission_params |= OFDM_SC_RA_RAM_OP_PARAM_PRIO_HI;
38733851 	status = write16(state, OFDM_EC_SB_PRIOR__A, OFDM_EC_SB_PRIOR_HI);
38743852 	if (status < 0)
....@@ -3880,7 +3858,7 @@
38803858 	case FEC_AUTO:
38813859 	default:
38823860 		operation_mode |= OFDM_SC_RA_RAM_OP_AUTO_RATE__M;
3883
-		/* fall through - try first guess DRX_CODERATE_2DIV3 */
3861
+		fallthrough;	/* try first guess DRX_CODERATE_2DIV3 */
38843862 	case FEC_2_3:
38853863 		transmission_params |= OFDM_SC_RA_RAM_OP_PARAM_RATE_2_3;
38863864 		break;
....@@ -3899,7 +3877,7 @@
38993877 	}
39003878 
39013879 	/*
3902
-	 * SAW filter selection: normaly not necesarry, but if wanted
3880
+	 * SAW filter selection: normally not necessary, but if wanted
39033881 	 * the application can select a SAW filter via the driver by
39043882 	 * using UIOs
39053883 	 */
....@@ -3914,7 +3892,7 @@
39143892 	switch (state->props.bandwidth_hz) {
39153893 	case 0:
39163894 		state->props.bandwidth_hz = 8000000;
3917
-		/* fall through */
3895
+		fallthrough;
39183896 	case 8000000:
39193897 		bandwidth = DRXK_BANDWIDTH_8MHZ_IN_HZ;
39203898 		status = write16(state, OFDM_SC_RA_RAM_SRMM_FIX_FACT_8K__A,
....@@ -5421,7 +5399,7 @@
54215399 
54225400 		set_param_parameters[3] |= (QAM_MIRROR_AUTO_ON);
54235401 		/* Env parameters */
5424
-		/* check for LOCKRANGE Extented */
5402
+		/* check for LOCKRANGE Extended */
54255403 		/* set_param_parameters[3] |= QAM_LOCKRANGE_NORMAL; */
54265404 
54275405 		status = scu_command(state,
....@@ -6694,7 +6672,7 @@
66946672 static int drxk_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
66956673 {
66966674 	struct drxk_state *state = fe->demodulator_priv;
6697
-	u16 err;
6675
+	u16 err = 0;
66986676 
66996677 	dprintk(1, "\n");
67006678 
....@@ -6867,7 +6845,7 @@
68676845 	kfree(state);
68686846 	return NULL;
68696847 }
6870
-EXPORT_SYMBOL(drxk_attach);
6848
+EXPORT_SYMBOL_GPL(drxk_attach);
68716849 
68726850 MODULE_DESCRIPTION("DRX-K driver");
68736851 MODULE_AUTHOR("Ralph Metzler");