61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include "params_iface.h"
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#include "drm_iface.h"
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int g_param_mono_cutoff = 32;
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int g_param_mono_invert = 0;
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int g_param_indicators = 1;
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static int set_param_u8(const char *val, const struct kernel_param *kp)
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{
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int rc, result;
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// Parse string value
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if ((rc = kstrtoint(val, 10, &result)) || (result < 0) || (result > 0xff)) {
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return -EINVAL;
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}
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rc = param_set_int(val, kp);
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// Refresh framebuffer
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(void)drm_refresh();
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return rc;
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}
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static const struct kernel_param_ops u8_param_ops = {
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.set = set_param_u8,
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.get = param_get_int,
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};
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module_param_cb(mono_cutoff, &u8_param_ops, &g_param_mono_cutoff, 0660);
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MODULE_PARM_DESC(mono_cutoff,
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"Greyscale value from 0-255 after which a mono pixel will be activated");
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module_param_cb(mono_invert, &u8_param_ops, &g_param_mono_invert, 0660);
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MODULE_PARM_DESC(mono_invert, "0 for no inversion, 1 for inversion");
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module_param_cb(indicators, &u8_param_ops, &g_param_indicators, 0660);
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MODULE_PARM_DESC(indicators, "0 for no indicators, 1 for indicators");
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int params_probe(void)
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{
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return 0;
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}
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void params_remove(void)
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{
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return;
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}
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void params_set_mono_invert(int setting)
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{
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g_param_mono_invert = setting;
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// Refresh framebuffer
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(void)drm_refresh();
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}
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