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Input: psxpad-spi - switch to using polled mode of input devices

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We have added polled mode to the normal input devices with the intent of
retiring input_polled_dev. This converts psxpad-spi driver to use the
polling mode of standard input devices and removes dependency on
INPUT_POLLDEV.

Link: https://lore.kernel.org/r/20191001220421.GA66693@dtor-ws
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2019-10-28 21:27:49 -07:00
parent 7448bfec6b
commit 055070a7d0
2 changed files with 34 additions and 31 deletions
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1
drivers/input/joystick/Kconfig
View File

@ -334,7 +334,6 @@ config JOYSTICK_MAPLE
config JOYSTICK_PSXPAD_SPI
tristate "PlayStation 1/2 joypads via SPI interface"
depends on SPI
select INPUT_POLLDEV
help
Say Y here if you wish to connect PlayStation 1/2 joypads
via SPI interface.

64
drivers/input/joystick/psxpad-spi.c
View File

@ -22,7 +22,6 @@
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/input.h>
#include <linux/input-polldev.h>
#include <linux/module.h>
#include <linux/spi/spi.h>
#include <linux/types.h>
@ -60,7 +59,7 @@ static const u8 PSX_CMD_ENABLE_MOTOR[] = {
struct psxpad {
struct spi_device *spi;
struct input_polled_dev *pdev;
struct input_dev *idev;
char phys[0x20];
bool motor1enable;
bool motor2enable;
@ -140,8 +139,7 @@ static void psxpad_set_motor_level(struct psxpad *pad,
static int psxpad_spi_play_effect(struct input_dev *idev,
void *data, struct ff_effect *effect)
{
struct input_polled_dev *pdev = input_get_drvdata(idev);
struct psxpad *pad = pdev->private;
struct psxpad *pad = input_get_drvdata(idev);
switch (effect->type) {
case FF_RUMBLE:
@ -158,10 +156,9 @@ static int psxpad_spi_init_ff(struct psxpad *pad)
{
int err;
input_set_capability(pad->pdev->input, EV_FF, FF_RUMBLE);
input_set_capability(pad->idev, EV_FF, FF_RUMBLE);
err = input_ff_create_memless(pad->pdev->input, NULL,
psxpad_spi_play_effect);
err = input_ff_create_memless(pad->idev, NULL, psxpad_spi_play_effect);
if (err) {
dev_err(&pad->spi->dev,
"input_ff_create_memless() failed: %d\n", err);
@ -189,24 +186,25 @@ static inline int psxpad_spi_init_ff(struct psxpad *pad)
}
#endif /* CONFIG_JOYSTICK_PSXPAD_SPI_FF */
static void psxpad_spi_poll_open(struct input_polled_dev *pdev)
static int psxpad_spi_poll_open(struct input_dev *input)
{
struct psxpad *pad = pdev->private;
struct psxpad *pad = input_get_drvdata(input);
pm_runtime_get_sync(&pad->spi->dev);
return 0;
}
static void psxpad_spi_poll_close(struct input_polled_dev *pdev)
static void psxpad_spi_poll_close(struct input_dev *input)
{
struct psxpad *pad = pdev->private;
struct psxpad *pad = input_get_drvdata(input);
pm_runtime_put_sync(&pad->spi->dev);
}
static void psxpad_spi_poll(struct input_polled_dev *pdev)
static void psxpad_spi_poll(struct input_dev *input)
{
struct psxpad *pad = pdev->private;
struct input_dev *input = pdev->input;
struct psxpad *pad = input_get_drvdata(input);
u8 b_rsp3, b_rsp4;
int err;
@ -284,7 +282,6 @@ static void psxpad_spi_poll(struct input_polled_dev *pdev)
static int psxpad_spi_probe(struct spi_device *spi)
{
struct psxpad *pad;
struct input_polled_dev *pdev;
struct input_dev *idev;
int err;
@ -292,31 +289,26 @@ static int psxpad_spi_probe(struct spi_device *spi)
if (!pad)
return -ENOMEM;
pdev = input_allocate_polled_device();
if (!pdev) {
idev = devm_input_allocate_device(&spi->dev);
if (!idev) {
dev_err(&spi->dev, "failed to allocate input device\n");
return -ENOMEM;
}
/* input poll device settings */
pad->pdev = pdev;
pad->idev = idev;
pad->spi = spi;
pdev->private = pad;
pdev->open = psxpad_spi_poll_open;
pdev->close = psxpad_spi_poll_close;
pdev->poll = psxpad_spi_poll;
/* poll interval is about 60fps */
pdev->poll_interval = 16;
pdev->poll_interval_min = 8;
pdev->poll_interval_max = 32;
/* input device settings */
idev = pdev->input;
input_set_drvdata(idev, pad);
idev->name = "PlayStation 1/2 joypad";
snprintf(pad->phys, sizeof(pad->phys), "%s/input", dev_name(&spi->dev));
idev->id.bustype = BUS_SPI;
idev->open = psxpad_spi_poll_open;
idev->close = psxpad_spi_poll_close;
/* key/value map settings */
input_set_abs_params(idev, ABS_X, 0, 255, 0, 0);
input_set_abs_params(idev, ABS_Y, 0, 255, 0, 0);
@ -354,11 +346,23 @@ static int psxpad_spi_probe(struct spi_device *spi)
/* pad settings */
psxpad_set_motor_level(pad, 0, 0);
err = input_setup_polling(idev, psxpad_spi_poll);
if (err) {
dev_err(&spi->dev, "failed to set up polling: %d\n", err);
return err;
}
/* poll interval is about 60fps */
input_set_poll_interval(idev, 16);
input_set_min_poll_interval(idev, 8);
input_set_max_poll_interval(idev, 32);
/* register input poll device */
err = input_register_polled_device(pdev);
err = input_register_device(idev);
if (err) {
dev_err(&spi->dev,
"failed to register input poll device: %d\n", err);
"failed to register input device: %d\n", err);
return err;
}