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patch #10031: linuxspi: Support GPIO uAPI v2 

Submitted by Alex Sverdlin:
* linuxspi.c (linuxspi_reset_mcu, linuxspi_open): Since Linux
v5.10 GPIO ABI Version 1 is optional and depends on
CONFIG_GPIO_CDEV_V1.




git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1495 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch 2021-11-27 15:51:24 +00:00
parent bd4f46b1ff
commit 18fe8ef834
3 changed files with 40 additions and 2 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2021-11-27 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Submitted by Alex Sverdlin:
patch #10031: linuxspi: Support GPIO uAPI v2
* linuxspi.c (linuxspi_reset_mcu, linuxspi_open): Since Linux
v5.10 GPIO ABI Version 1 is optional and depends on
CONFIG_GPIO_CDEV_V1.
2021-11-27 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Submitted by Alex Sverdlin:

1
NEWS
View File

@ -121,6 +121,7 @@ Current:
patch #10028: linuxspi: close() only when necessary
patch #10029: linuxspi: Report GPIO_GET_LINEHANDLE_IOCTL errors
patch #10030: linuxspi: Support inverted GPIO pin
patch #10031: linuxspi: Support GPIO uAPI v2
* Internals:
- New avrdude.conf keyword "family_id", used to verify SIB attributes

33
linuxspi.c
View File

@ -109,6 +109,16 @@ static int linuxspi_reset_mcu(PROGRAMMER *pgm, bool active)
*/
data.values[0] = active ^ !(pgm->pinno[PIN_AVR_RESET] & PIN_INVERSE);
ret = ioctl(fd_linehandle, GPIOHANDLE_SET_LINE_VALUES_IOCTL, &data);
#ifdef GPIO_V2_LINE_SET_VALUES_IOCTL
if (ret == -1) {
struct gpio_v2_line_values val;
val.mask = 1;
val.bits = active ^ !(pgm->pinno[PIN_AVR_RESET] & PIN_INVERSE);
ret = ioctl(fd_linehandle, GPIO_V2_LINE_SET_VALUES_IOCTL, &val);
}
#endif
if (ret == -1) {
ret = -errno;
avrdude_message(MSG_INFO, "%s error: Unable to set GPIO line %d value\n",
@ -169,6 +179,27 @@ static int linuxspi_open(PROGRAMMER *pgm, char *port)
req.flags = GPIOHANDLE_REQUEST_OUTPUT;
ret = ioctl(fd_gpiochip, GPIO_GET_LINEHANDLE_IOCTL, &req);
if (ret != -1)
fd_linehandle = req.fd;
#ifdef GPIO_V2_GET_LINE_IOCTL
if (ret == -1) {
struct gpio_v2_line_request reqv2;
memset(&reqv2, 0, sizeof(reqv2));
reqv2.offsets[0] = pgm->pinno[PIN_AVR_RESET] & ~PIN_INVERSE;
strncpy(reqv2.consumer, progname, sizeof(reqv2.consumer) - 1);
reqv2.config.flags = GPIO_V2_LINE_FLAG_OUTPUT;
reqv2.config.num_attrs = 1;
reqv2.config.attrs[0].attr.id = GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES;
reqv2.config.attrs[0].attr.values = !!(pgm->pinno[PIN_AVR_RESET] & PIN_INVERSE);
reqv2.config.attrs[0].mask = 1;
reqv2.num_lines = 1;
ret = ioctl(fd_gpiochip, GPIO_V2_GET_LINE_IOCTL, &reqv2);
if (ret != -1)
fd_linehandle = reqv2.fd;
}
#endif
if (ret == -1) {
ret = -errno;
avrdude_message(MSG_INFO, "%s error: Unable to get GPIO line %d\n",
@ -176,8 +207,6 @@ static int linuxspi_open(PROGRAMMER *pgm, char *port)
goto close_gpiochip;
}
fd_linehandle = req.fd;
ret = linuxspi_reset_mcu(pgm, true);
if (ret)
goto close_out;