[PATCH] Accessiblity: speakup_bns: specifying the default driver parameters among the module params

From: Osama Muhammad
Date: Sat Oct 22 2022 - 14:56:33 EST


This is an enhancement which allows to specify the default driver
parameters among the module parameters.

Adding a default variables to the speakup_bns module
allows to easily set that at boot, rather than
setting the sys variables after boot.
More details can be found here:
https://github.com/linux-speakup/speakup/issues/7

Signed-off-by: Osama Muhammad <osmtendev@xxxxxxxxx>

Reviewed-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

---
drivers/accessibility/speakup/speakup_bns.c | 36 ++++++++++++++++-----
1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/accessibility/speakup/speakup_bns.c b/drivers/accessibility/speakup/speakup_bns.c
index b8103eb117b8..60507756499c 100644
--- a/drivers/accessibility/speakup/speakup_bns.c
+++ b/drivers/accessibility/speakup/speakup_bns.c
@@ -16,14 +16,23 @@
#define SYNTH_CLEAR 0x18
#define PROCSPEECH '\r'

-static struct var_t vars[] = {
- { CAPS_START, .u.s = {"\x05\x31\x32P" } },
- { CAPS_STOP, .u.s = {"\x05\x38P" } },
- { RATE, .u.n = {"\x05%dE", 8, 1, 16, 0, 0, NULL } },
- { PITCH, .u.n = {"\x05%dP", 8, 0, 16, 0, 0, NULL } },
- { VOL, .u.n = {"\x05%dV", 8, 0, 16, 0, 0, NULL } },
- { TONE, .u.n = {"\x05%dT", 8, 0, 16, 0, 0, NULL } },
- { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
+
+enum default_vars_id {
+ CAPS_START_ID = 0, CAPS_STOP_ID,
+ RATE_ID, PITCH_ID,
+ VOL_ID, TONE_ID,
+ DIRECT_ID, V_LAST_VAR_ID,
+ NB_ID
+};
+
+static struct var_t vars[NB_ID] = {
+ [CAPS_START_ID] = { CAPS_START, .u.s = {"\x05\x31\x32P" } },
+ [CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"\x05\x38P" } },
+ [RATE_ID] = { RATE, .u.n = {"\x05%dE", 8, 1, 16, 0, 0, NULL } },
+ [PITCH_ID] = { PITCH, .u.n = {"\x05%dP", 8, 0, 16, 0, 0, NULL } },
+ [VOL_ID] = { VOL, .u.n = {"\x05%dV", 8, 0, 16, 0, 0, NULL } },
+ [TONE_ID] = { TONE, .u.n = {"\x05%dT", 8, 0, 16, 0, 0, NULL } },
+ [DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
V_LAST_VAR
};

@@ -113,10 +122,21 @@ static struct spk_synth synth_bns = {
module_param_named(ser, synth_bns.ser, int, 0444);
module_param_named(dev, synth_bns.dev_name, charp, 0444);
module_param_named(start, synth_bns.startup, short, 0444);
+module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444);
+module_param_named(pitch, vars[PITCH_ID].u.n.default_val, int, 0444);
+module_param_named(vol, vars[VOL_ID].u.n.default_val, int, 0444);
+module_param_named(tone, vars[TONE_ID].u.n.default_val, int, 0444);
+module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 0444);
+

MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
+MODULE_PARM_DESC(rate, "Set the rate variable on load.");
+MODULE_PARM_DESC(pitch, "Set the pitch variable on load.");
+MODULE_PARM_DESC(vol, "Set the vol variable on load.");
+MODULE_PARM_DESC(tone, "Set the tone variable on load.");
+MODULE_PARM_DESC(direct, "Set the direct variable on load.");

module_spk_synth(synth_bns);

--
2.25.1