| /kernel/linux/linux-5.10/drivers/pps/ |
| D | kapi.c | 41 static void pps_echo_client_default(struct pps_device *pps, int event, in pps_echo_client_default() argument
44 dev_info(pps->dev, "echo %s %s\n", in pps_echo_client_default()
53 /* pps_register_source - add a PPS source in the system
54 * @info: the PPS info struct
55 * @default_params: the default PPS parameters of the new source
57 * This function is used to add a new PPS source in the system. The new
58 * source is described by info's fields and it will have, as default PPS
61 * The function returns, in case of success, the PPS device. Otherwise
68 struct pps_device *pps; in pps_register_source() local
85 /* Allocate memory for the new PPS source struct */ in pps_register_source()
[all …]
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| D | pps.c | 3 * PPS core file
40 struct pps_device *pps = file->private_data; in pps_cdev_poll() local
42 poll_wait(file, &pps->queue, wait); in pps_cdev_poll()
49 struct pps_device *pps = file->private_data; in pps_cdev_fasync() local
50 return fasync_helper(fd, file, on, &pps->async_queue); in pps_cdev_fasync()
53 static int pps_cdev_pps_fetch(struct pps_device *pps, struct pps_fdata *fdata) in pps_cdev_pps_fetch() argument
55 unsigned int ev = pps->last_ev; in pps_cdev_pps_fetch()
60 err = wait_event_interruptible(pps->queue, in pps_cdev_pps_fetch()
61 ev != pps->last_ev); in pps_cdev_pps_fetch()
65 dev_dbg(pps->dev, "timeout %lld.%09d\n", in pps_cdev_pps_fetch()
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| D | kc.c | 3 * PPS kernel consumer API
25 /* PPS API (RFC 2783): current source and mode for kernel consumer */
29 /* pps_kc_bind - control PPS kernel consumer binding
30 * @pps: the PPS source
33 * This function is used to bind or unbind PPS kernel consumer according to
36 int pps_kc_bind(struct pps_device *pps, struct pps_bind_args *bind_args) in pps_kc_bind() argument
42 if (pps_kc_hardpps_dev == pps) { in pps_kc_bind()
46 dev_info(pps->dev, "unbound kernel" in pps_kc_bind()
50 dev_err(pps->dev, "selected kernel consumer" in pps_kc_bind()
56 pps_kc_hardpps_dev == pps) { in pps_kc_bind()
[all …]
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| D | Kconfig | 3 # PPS support configuration
6 menuconfig PPS config
7 tristate "PPS support"
9 PPS (Pulse Per Second) is a special pulse provided by some GPS
13 Some antennae's PPS signals are connected with the CD (Carrier
17 Some antennae's PPS signals are connected with some special host
23 if PPS
26 bool "PPS debugging messages"
28 Say Y here if you want the PPS support to produce a bunch of debug
30 problem with PPS support and want to see more of what is going on.
[all …]
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| D | sysfs.c | 3 * PPS sysfs support
21 struct pps_device *pps = dev_get_drvdata(dev); in assert_show() local
23 if (!(pps->info.mode & PPS_CAPTUREASSERT)) in assert_show()
27 (long long) pps->assert_tu.sec, pps->assert_tu.nsec, in assert_show()
28 pps->assert_sequence); in assert_show()
35 struct pps_device *pps = dev_get_drvdata(dev); in clear_show() local
37 if (!(pps->info.mode & PPS_CAPTURECLEAR)) in clear_show()
41 (long long) pps->clear_tu.sec, pps->clear_tu.nsec, in clear_show()
42 pps->clear_sequence); in clear_show()
49 struct pps_device *pps = dev_get_drvdata(dev); in mode_show() local
[all …]
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| /kernel/linux/linux-4.19/drivers/pps/ |
| D | kapi.c | 55 static void pps_echo_client_default(struct pps_device *pps, int event, in pps_echo_client_default() argument
58 dev_info(pps->dev, "echo %s %s\n", in pps_echo_client_default()
67 /* pps_register_source - add a PPS source in the system
68 * @info: the PPS info struct
69 * @default_params: the default PPS parameters of the new source
71 * This function is used to add a new PPS source in the system. The new
72 * source is described by info's fields and it will have, as default PPS
75 * The function returns, in case of success, the PPS device. Otherwise NULL.
81 struct pps_device *pps; in pps_register_source() local
98 /* Allocate memory for the new PPS source struct */ in pps_register_source()
[all …]
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| D | pps.c | 2 * PPS core file
54 struct pps_device *pps = file->private_data; in pps_cdev_poll() local
56 poll_wait(file, &pps->queue, wait); in pps_cdev_poll()
63 struct pps_device *pps = file->private_data; in pps_cdev_fasync() local
64 return fasync_helper(fd, file, on, &pps->async_queue); in pps_cdev_fasync()
67 static int pps_cdev_pps_fetch(struct pps_device *pps, struct pps_fdata *fdata) in pps_cdev_pps_fetch() argument
69 unsigned int ev = pps->last_ev; in pps_cdev_pps_fetch()
74 err = wait_event_interruptible(pps->queue, in pps_cdev_pps_fetch()
75 ev != pps->last_ev); in pps_cdev_pps_fetch()
79 dev_dbg(pps->dev, "timeout %lld.%09d\n", in pps_cdev_pps_fetch()
[all …]
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| D | kc.c | 2 * PPS kernel consumer API
38 /* PPS API (RFC 2783): current source and mode for kernel consumer */
42 /* pps_kc_bind - control PPS kernel consumer binding
43 * @pps: the PPS source
46 * This function is used to bind or unbind PPS kernel consumer according to
49 int pps_kc_bind(struct pps_device *pps, struct pps_bind_args *bind_args) in pps_kc_bind() argument
55 if (pps_kc_hardpps_dev == pps) { in pps_kc_bind()
59 dev_info(pps->dev, "unbound kernel" in pps_kc_bind()
63 dev_err(pps->dev, "selected kernel consumer" in pps_kc_bind()
69 pps_kc_hardpps_dev == pps) { in pps_kc_bind()
[all …]
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| D | Kconfig | 2 # PPS support configuration
5 menuconfig PPS config
6 tristate "PPS support"
8 PPS (Pulse Per Second) is a special pulse provided by some GPS
12 Some antennae's PPS signals are connected with the CD (Carrier
16 Some antennae's PPS signals are connected with some special host
22 if PPS
25 bool "PPS debugging messages"
27 Say Y here if you want the PPS support to produce a bunch of debug
29 problem with PPS support and want to see more of what is going on.
[all …]
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| D | sysfs.c | 2 * PPS sysfs support
35 struct pps_device *pps = dev_get_drvdata(dev); in assert_show() local
37 if (!(pps->info.mode & PPS_CAPTUREASSERT)) in assert_show()
41 (long long) pps->assert_tu.sec, pps->assert_tu.nsec, in assert_show()
42 pps->assert_sequence); in assert_show()
49 struct pps_device *pps = dev_get_drvdata(dev); in clear_show() local
51 if (!(pps->info.mode & PPS_CAPTURECLEAR)) in clear_show()
55 (long long) pps->clear_tu.sec, pps->clear_tu.nsec, in clear_show()
56 pps->clear_sequence); in clear_show()
63 struct pps_device *pps = dev_get_drvdata(dev); in mode_show() local
[all …]
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| /kernel/linux/linux-5.10/drivers/gpu/drm/amd/display/dc/dcn20/ |
| D | dcn20_dsc.c | 30 static void dsc_log_pps(struct display_stream_compressor *dsc, struct drm_dsc_config *pps);
202 DC_LOG_DSC("programming DSC Picture Parameter Set (PPS):"); in dsc2_set_config()
203 dsc_log_pps(dsc, &dsc20->reg_vals.pps); in dsc2_set_config()
217 DC_LOG_DSC("Getting packed DSC PPS for DSC Config:"); in dsc2_get_packed_pps()
219 DC_LOG_DSC("DSC Picture Parameter Set (PPS):"); in dsc2_get_packed_pps()
222 …drm_dsc_pps_payload_pack((struct drm_dsc_picture_parameter_set *)dsc_packed_pps, &dsc_reg_vals.pps… in dsc2_get_packed_pps()
223 dsc_log_pps(dsc, &dsc_reg_vals.pps); in dsc2_get_packed_pps()
279 static void dsc_log_pps(struct display_stream_compressor *dsc, struct drm_dsc_config *pps) in dsc_log_pps() argument
282 int bits_per_pixel = pps->bits_per_pixel; in dsc_log_pps()
284 DC_LOG_DSC("\tdsc_version_major %d", pps->dsc_version_major); in dsc_log_pps()
[all …]
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| /kernel/linux/linux-4.19/Documentation/pps/ |
| D | pps.txt | 2 PPS - Pulse Per Second
23 system several PPS sources.
25 PPS means "pulse per second" and a PPS source is just a device which
29 A PPS source can be connected to a serial port (usually to the Data
36 GPS receiver as PPS source, to obtain a wallclock-time with
43 While implementing a PPS API as RFC 2783 defines and using an embedded
53 task for a PPS API. But this assumption does not work for a single
56 precondition for the use of a PPS API.
58 The problem can be simply solved if you consider that a PPS source is
62 for instance) is a PPS source too, and if not they should provide the
[all …]
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| /kernel/linux/linux-5.10/Documentation/driver-api/ |
| D | pps.rst | 4 PPS - Pulse Per Second
25 system several PPS sources.
27 PPS means "pulse per second" and a PPS source is just a device which
31 A PPS source can be connected to a serial port (usually to the Data
38 GPS receiver as PPS source, to obtain a wallclock-time with
45 While implementing a PPS API as RFC 2783 defines and using an embedded
55 task for a PPS API. But this assumption does not work for a single
58 precondition for the use of a PPS API.
60 The problem can be simply solved if you consider that a PPS source is
64 for instance) is a PPS source too, and if not they should provide the
[all …]
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| /kernel/linux/linux-5.10/drivers/pps/clients/ |
| D | pps-ldisc.c | 3 * pps-ldisc.c -- PPS line discipline
20 struct pps_device *pps; in pps_tty_dcd_change() local
25 pps = pps_lookup_dev(tty); in pps_tty_dcd_change()
30 if (WARN_ON_ONCE(pps == NULL)) in pps_tty_dcd_change()
33 /* Now do the PPS event report */ in pps_tty_dcd_change()
34 pps_event(pps, &ts, status ? PPS_CAPTUREASSERT : in pps_tty_dcd_change()
37 dev_dbg(pps->dev, "PPS %s at %lu\n", in pps_tty_dcd_change()
48 struct pps_device *pps; in pps_tty_open() local
59 pps = pps_register_source(&info, PPS_CAPTUREBOTH | \ in pps_tty_open()
61 if (IS_ERR(pps)) { in pps_tty_open()
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| D | pps-gpio.c | 3 * pps-gpio.c -- PPS client driver using GPIO
9 #define PPS_GPIO_NAME "pps-gpio"
19 #include <linux/pps-gpio.h>
29 int irq; /* IRQ used as PPS source */
30 struct pps_device *pps; /* PPS source device */ member
31 struct pps_source_info info; /* PPS source information */
37 unsigned int echo_active_ms; /* PPS echo active duration */
42 * Report the PPS event
59 pps_event(info->pps, &ts, PPS_CAPTUREASSERT, data); in pps_gpio_irq_handler()
63 pps_event(info->pps, &ts, PPS_CAPTURECLEAR, data); in pps_gpio_irq_handler()
[all …]
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| D | pps-ktimer.c | 3 * pps-ktimer.c -- kernel timer test client
21 static struct pps_device *pps; variable
35 pps_event(pps, &ts, PPS_CAPTUREASSERT, NULL); in pps_ktimer_event()
41 * The PPS info struct
59 dev_info(pps->dev, "ktimer PPS source unregistered\n"); in pps_ktimer_exit()
62 pps_unregister_source(pps); in pps_ktimer_exit()
67 pps = pps_register_source(&pps_ktimer_info, in pps_ktimer_init()
69 if (IS_ERR(pps)) { in pps_ktimer_init()
70 pr_err("cannot register PPS source\n"); in pps_ktimer_init()
71 return PTR_ERR(pps); in pps_ktimer_init()
[all …]
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| D | Kconfig | 3 # PPS clients configuration
6 comment "PPS clients support"
11 If you say yes here you get support for a PPS debugging client
12 which uses a kernel timer to generate the PPS signal.
15 will be called pps-ktimer.
18 tristate "PPS line discipline"
21 If you say yes here you get support for a PPS source connected
25 tristate "Parallel port PPS client"
28 If you say yes here you get support for a PPS source connected
32 tristate "PPS client using GPIO"
[all …]
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| /kernel/linux/linux-4.19/drivers/pps/clients/ |
| D | pps-ldisc.c | 2 * pps-ldisc.c -- PPS line discipline
34 struct pps_device *pps; in pps_tty_dcd_change() local
39 pps = pps_lookup_dev(tty); in pps_tty_dcd_change()
44 if (WARN_ON_ONCE(pps == NULL)) in pps_tty_dcd_change()
47 /* Now do the PPS event report */ in pps_tty_dcd_change()
48 pps_event(pps, &ts, status ? PPS_CAPTUREASSERT : in pps_tty_dcd_change()
51 dev_dbg(pps->dev, "PPS %s at %lu\n", in pps_tty_dcd_change()
62 struct pps_device *pps; in pps_tty_open() local
73 pps = pps_register_source(&info, PPS_CAPTUREBOTH | \ in pps_tty_open()
75 if (pps == NULL) { in pps_tty_open()
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| D | pps-gpio.c | 2 * pps-gpio.c -- PPS client driver using GPIO
23 #define PPS_GPIO_NAME "pps-gpio"
33 #include <linux/pps-gpio.h>
41 int irq; /* IRQ used as PPS source */
42 struct pps_device *pps; /* PPS source device */ member
43 struct pps_source_info info; /* PPS source information */
50 * Report the PPS event
67 pps_event(info->pps, &ts, PPS_CAPTUREASSERT, NULL); in pps_gpio_irq_handler()
71 pps_event(info->pps, &ts, PPS_CAPTURECLEAR, NULL); in pps_gpio_irq_handler()
146 /* initialize PPS specific parts of the bookkeeping data structure. */ in pps_gpio_probe()
[all …]
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| D | Kconfig | 2 # PPS clients configuration
5 comment "PPS clients support"
10 If you say yes here you get support for a PPS debugging client
11 which uses a kernel timer to generate the PPS signal.
14 will be called pps-ktimer.
17 tristate "PPS line discipline"
20 If you say yes here you get support for a PPS source connected
24 tristate "Parallel port PPS client"
27 If you say yes here you get support for a PPS source connected
31 tristate "PPS client using GPIO"
[all …]
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| /kernel/linux/linux-4.19/Documentation/ABI/testing/ |
| D | sysfs-pps | 1 What: /sys/class/pps/
5 The /sys/class/pps/ directory will contain files and
7 the PPS sources.
9 What: /sys/class/pps/ppsX/
13 The /sys/class/pps/ppsX/ directory is related to X-th
14 PPS source into the system. Each directory will
15 contain files to manage and control its PPS source.
17 What: /sys/class/pps/ppsX/assert
21 The /sys/class/pps/ppsX/assert file reports the assert events
29 What: /sys/class/pps/ppsX/clear
[all …]
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| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| D | sysfs-pps | 1 What: /sys/class/pps/
5 The /sys/class/pps/ directory will contain files and
7 the PPS sources.
9 What: /sys/class/pps/ppsX/
13 The /sys/class/pps/ppsX/ directory is related to X-th
14 PPS source into the system. Each directory will
15 contain files to manage and control its PPS source.
17 What: /sys/class/pps/ppsX/assert
21 The /sys/class/pps/ppsX/assert file reports the assert events
29 What: /sys/class/pps/ppsX/clear
[all …]
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| /kernel/linux/linux-5.10/drivers/gpu/drm/ |
| D | drm_dsc.c | 33 * drm_dsc_dp_pps_header_init() - Initializes the PPS Header
53 * drm_dsc_pps_payload_pack() - Populates the DSC PPS
62 * DSC source device sends a picture parameter set (PPS) containing the
64 * populates the DSC PPS struct using the DSC configuration parameters in
66 * device expects the PPS payload in big endian format for fields
80 /* PPS 0 */ in drm_dsc_pps_payload_pack()
85 /* PPS 1, 2 is 0 */ in drm_dsc_pps_payload_pack()
87 /* PPS 3 */ in drm_dsc_pps_payload_pack()
92 /* PPS 4 */ in drm_dsc_pps_payload_pack()
101 /* PPS 5 */ in drm_dsc_pps_payload_pack()
[all …]
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| /kernel/linux/linux-5.10/include/linux/ |
| D | pps_kernel.h | 3 * PPS API kernel header
11 #include <linux/pps.h>
22 /* The specific PPS source info */
26 int mode; /* PPS allowed mode */
28 void (*echo)(struct pps_device *pps,
29 int event, void *data); /* PPS echo function */
46 struct pps_kparams params; /* PPS current params */
48 __u32 assert_sequence; /* PPS assert event seq # */
49 __u32 clear_sequence; /* PPS clear event seq # */
52 int current_mode; /* PPS mode at event time */
[all …]
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| /kernel/linux/linux-4.19/include/linux/ |
| D | pps_kernel.h | 2 * PPS API kernel header
24 #include <linux/pps.h>
35 /* The specific PPS source info */
39 int mode; /* PPS allowed mode */
41 void (*echo)(struct pps_device *pps,
42 int event, void *data); /* PPS echo function */
59 struct pps_kparams params; /* PPS current params */
61 __u32 assert_sequence; /* PPS assert event seq # */
62 __u32 clear_sequence; /* PPS clear event seq # */
65 int current_mode; /* PPS mode at event time */
[all …]
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