History

can: bittiming: replace CAN units with the generic ones from linux/units.h

In [1], we introduced a set of units in linux/can/bittiming.h. Since then, generic SI prefixes were added to linux/units.h in [2]. Those new prefixes can perfectly replace CAN specific ones. This patch replaces all occurrences of the CAN units with their corresponding prefix (from linux/units) and the unit (as a comment) according to below table. CAN units SI metric prefix (from linux/units) + unit (as a comment) ------------------------------------------------------------------------ CAN_KBPS KILO /* BPS */ CAN_MBPS MEGA /* BPS */ CAM_MHZ MEGA /* Hz */ The definition are then removed from linux/can/bittiming.h [1] commit 1d7750760b70 ("can: bittiming: add CAN_KBPS, CAN_MBPS and CAN_MHZ macros") [2] commit 26471d4a6cf8 ("units: Add SI metric prefix definitions")

Vincent Mailhol committed 4 years ago

Commit 330c6d31 parent 1fe5b014 files · +9 −13Browse files

Unified · Split

4 files
  1. drivers/net/can/dev/bittiming.c +3 −2
  2. drivers/net/can/usb/etas_es58x/es581_4.c +3 −2
  3. drivers/net/can/usb/etas_es58x/es58x_fd.c +3 −2
  4. include/linux/can/bittiming.h +0 −7
drivers/net/can/dev/bittiming.c+3−2
@@ -4,6 +4,7 @@ · 3 unmodified lines
44 * Copyright (C) 2008-2009 Wolfgang Grandegger <wg@grandegger.com>
55 */
66
7+#include <linux/units.h>
78 #include <linux/can/dev.h>
89
910 #ifdef CONFIG_CAN_CALC_BITTIMING
@@ -81,9 +82,9 @@ int can_calc_bittiming(struct net_device *dev, struct can_bittiming *bt, · 71 unmodified lines
8182 if (bt->sample_point) {
8283 sample_point_nominal = bt->sample_point;
8384 } else {
84− if (bt->bitrate > 800 * CAN_KBPS)
85+ if (bt->bitrate > 800 * KILO /* BPS */)
8586 sample_point_nominal = 750;
86− else if (bt->bitrate > 500 * CAN_KBPS)
87+ else if (bt->bitrate > 500 * KILO /* BPS */)
8788 sample_point_nominal = 800;
8889 else
8990 sample_point_nominal = 875;
drivers/net/can/usb/etas_es58x/es581_4.c+3−2
@@ -10,6 +10,7 @@ · 9 unmodified lines
1010 */
1111
1212 #include <linux/kernel.h>
13+#include <linux/units.h>
1314 #include <asm/unaligned.h>
1415
1516 #include "es58x_core.h"
@@ -469,8 +470,8 @@ const struct es58x_parameters es581_4_param = { · 453 unmodified lines
469470 .bittiming_const = &es581_4_bittiming_const,
470471 .data_bittiming_const = NULL,
471472 .tdc_const = NULL,
472− .bitrate_max = 1 * CAN_MBPS,
473− .clock = {.freq = 50 * CAN_MHZ},
473+ .bitrate_max = 1 * MEGA /* BPS */,
474+ .clock = {.freq = 50 * MEGA /* Hz */},
474475 .ctrlmode_supported = CAN_CTRLMODE_CC_LEN8_DLC,
475476 .tx_start_of_frame = 0xAFAF,
476477 .rx_start_of_frame = 0xFAFA,
drivers/net/can/usb/etas_es58x/es58x_fd.c+3−2
@@ -12,6 +12,7 @@ · 11 unmodified lines
1212 */
1313
1414 #include <linux/kernel.h>
15+#include <linux/units.h>
1516 #include <asm/unaligned.h>
1617
1718 #include "es58x_core.h"
@@ -522,8 +523,8 @@ const struct es58x_parameters es58x_fd_param = { · 504 unmodified lines
522523 * Mbps work in an optimal environment but are not recommended
523524 * for production environment.
524525 */
525− .bitrate_max = 8 * CAN_MBPS,
526− .clock = {.freq = 80 * CAN_MHZ},
526+ .bitrate_max = 8 * MEGA /* BPS */,
527+ .clock = {.freq = 80 * MEGA /* Hz */},
527528 .ctrlmode_supported = CAN_CTRLMODE_LOOPBACK | CAN_CTRLMODE_LISTENONLY |
528529 CAN_CTRLMODE_3_SAMPLES | CAN_CTRLMODE_FD | CAN_CTRLMODE_FD_NON_ISO |
529530 CAN_CTRLMODE_CC_LEN8_DLC | CAN_CTRLMODE_TDC_AUTO,
include/linux/can/bittiming.h+0−7
@@ -12,13 +12,6 @@ · 11 unmodified lines
1212 #define CAN_SYNC_SEG 1
1313
1414
15−/* Kilobits and Megabits per second */
16−#define CAN_KBPS 1000UL
17−#define CAN_MBPS 1000000UL
18−
19−/* Megahertz */
20−#define CAN_MHZ 1000000UL
21−
2215 #define CAN_CTRLMODE_TDC_MASK \
2316 (CAN_CTRLMODE_TDC_AUTO | CAN_CTRLMODE_TDC_MANUAL)
2417

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