Replace the various command strings by named constants.
Signed-off-by: Marc Dietrich <marvin24@xxxxxx>
---
drivers/staging/nvec/nvec.c | 53 ++++++++++++++++++++++++++++++-------
drivers/staging/nvec/nvec.h | 1 +
drivers/staging/nvec/nvec_kbd.c | 42 +++++++++++++++++------------
drivers/staging/nvec/nvec_power.c | 8 +++---
drivers/staging/nvec/nvec_ps2.c | 25 ++++++++++-------
5 files changed, 89 insertions(+), 40 deletions(-)
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 6fab02f..7555850 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -74,9 +74,14 @@ enum nvec_msg_category {
enum nvec_sleep_subcmds {
GLOBAL_EVENTS,
+ AP_PWR_DOWN,
+ AP_SUSPEND,
};
-static const unsigned char EC_GET_FIRMWARE_VERSION[2] = "\x07\x15";
+#define CNF_EVENT_REPORTING 0x01
+#define GET_FIRMWARE_VERSION 0x15
+#define LID_SWITCH BIT(1)
+#define PWR_BUTTON BIT(15)
static struct nvec_chip *nvec_power_handle;
@@ -334,6 +339,27 @@ static void nvec_toggle_global_events(struct nvec_chip *nvec, bool state)
}
/**
+ * nvec_event_mask - fill the command string with event bitfield
+ * ev: points to event command string
+ * mask: bit to insert into the event mask
+ *
+ * Configure event command expects a 32 bit bitfield which describes
+ * which events to enable. The bitfield has the following structure
+ * (from highest byte to lowest):
+ * system state bits 7-0
+ * system state bits 15-8
+ * oem system state bits 7-0
+ * oem system state bits 15-8
+ */
+static void nvec_event_mask(char *ev, u32 mask)
+{
+ ev[3] = mask >> 16 && 0xff;
+ ev[4] = mask >> 24 && 0xff;
+ ev[5] = mask >> 0 && 0xff;
+ ev[6] = mask >> 8 && 0xff;
+}
+
+/**
* nvec_request_master - Process outgoing messages
* @work: A &struct work_struct (the tx_worker member of &struct nvec_chip)
*
@@ -727,8 +753,10 @@ static void nvec_disable_i2c_slave(struct nvec_chip *nvec)
static void nvec_power_off(void)
{
+ char ap_pwr_down[] = { NVEC_SLEEP, AP_PWR_DOWN };
+
nvec_toggle_global_events(nvec_power_handle, false);
- nvec_write_async(nvec_power_handle, "\x04\x01", 2);
+ nvec_write_async(nvec_power_handle, ap_pwr_down, 2);
}
static int tegra_nvec_probe(struct platform_device *pdev)
@@ -740,6 +768,9 @@ static int tegra_nvec_probe(struct platform_device *pdev)
struct nvec_msg *msg;
struct resource *res;
void __iomem *base;
+ char get_firmware_version[] = { NVEC_CNTL, GET_FIRMWARE_VERSION },
+ unmute_speakers[] = { NVEC_OEM0, 0x10, 0x59, 0x95 },
+ enable_event[7] = { NVEC_SYS, CNF_EVENT_REPORTING, true };
nvec = devm_kzalloc(&pdev->dev, sizeof(struct nvec_chip), GFP_KERNEL);
if (nvec == NULL) {
@@ -840,8 +871,7 @@ static int tegra_nvec_probe(struct platform_device *pdev)
pm_power_off = nvec_power_off;
/* Get Firmware Version */
- msg = nvec_write_sync(nvec, EC_GET_FIRMWARE_VERSION,
- sizeof(EC_GET_FIRMWARE_VERSION));
+ msg = nvec_write_sync(nvec, get_firmware_version, 2);
if (msg) {
dev_warn(nvec->dev, "ec firmware version %02x.%02x.%02x / %02x\n",
@@ -856,13 +886,15 @@ static int tegra_nvec_probe(struct platform_device *pdev)
dev_err(nvec->dev, "error adding subdevices\n");
/* unmute speakers? */
- nvec_write_async(nvec, "\x0d\x10\x59\x95", 4);
+ nvec_write_async(nvec, unmute_speakers, 4);
/* enable lid switch event */
- nvec_write_async(nvec, "\x01\x01\x01\x00\x00\x02\x00", 7);
+ nvec_event_mask(enable_event, LID_SWITCH);
+ nvec_write_async(nvec, enable_event, 7);
/* enable power button event */
- nvec_write_async(nvec, "\x01\x01\x01\x00\x00\x80\x00", 7);
+ nvec_event_mask(enable_event, PWR_BUTTON);
+ nvec_write_async(nvec, enable_event, 7);
return 0;
}
@@ -885,13 +917,14 @@ static int nvec_suspend(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct nvec_chip *nvec = platform_get_drvdata(pdev);
struct nvec_msg *msg;
+ char ap_suspend[] = { NVEC_SLEEP, AP_SUSPEND };
dev_dbg(nvec->dev, "suspending\n");
/* keep these sync or you'll break suspend */
- msg = nvec_write_sync(nvec, EC_DISABLE_EVENT_REPORTING, 3);
- nvec_msg_free(nvec, msg);
- msg = nvec_write_sync(nvec, "\x04\x02", 2);
+ nvec_toggle_global_events(nvec, false);
+
+ msg = nvec_write_sync(nvec, ap_suspend, sizeof(ap_suspend));
nvec_msg_free(nvec, msg);
nvec_disable_i2c_slave(nvec);
diff --git a/drivers/staging/nvec/nvec.h b/drivers/staging/nvec/nvec.h
index bfcd9a9..b7a14bc 100644
--- a/drivers/staging/nvec/nvec.h
+++ b/drivers/staging/nvec/nvec.h
@@ -76,6 +76,7 @@ enum nvec_msg_type {
NVEC_KBD,
NVEC_PS2,
NVEC_CNTL,
+ NVEC_OEM0 = 0x0d,
NVEC_KB_EVT = 0x80,
NVEC_PS2_EVT,
};
diff --git a/drivers/staging/nvec/nvec_kbd.c b/drivers/staging/nvec/nvec_kbd.c
index 7cb149b..7445ce6 100644
--- a/drivers/staging/nvec/nvec_kbd.c
+++ b/drivers/staging/nvec/nvec_kbd.c
@@ -21,10 +21,14 @@
#include "nvec-keytable.h"
#include "nvec.h"
-#define ACK_KBD_EVENT {'\x05', '\xed', '\x01'}
+enum kbd_subcmds {
+ CNFG_WAKE = 3,
+ CNFG_WAKE_KEY_REPORTING,
+ SET_LEDS = 0xed,
+ ENABLE_KBD = 0xf4,
+ DISABLE_KBD,
+};
-static const char led_on[3] = "\x05\xed\x07";
-static const char led_off[3] = "\x05\xed\x00";
static unsigned char keycodes[ARRAY_SIZE(code_tab_102us)
+ ARRAY_SIZE(extcode_tab_us102)];
@@ -39,12 +43,15 @@ static struct nvec_keys keys_dev;
static void nvec_kbd_toggle_led(void)
{
+ char buf[] = { NVEC_KBD, SET_LEDS, 0 };
+
keys_dev.caps_lock = !keys_dev.caps_lock;
if (keys_dev.caps_lock)
- nvec_write_async(keys_dev.nvec, led_on, sizeof(led_on));
- else
- nvec_write_async(keys_dev.nvec, led_off, sizeof(led_off));
+ /* should be BIT(0) only, firmware bug? */
+ buf[2] = BIT(0) | BIT(1) | BIT(2);
+
+ nvec_write_async(keys_dev.nvec, buf, sizeof(buf));
}
static int nvec_keys_notifier(struct notifier_block *nb,
@@ -82,8 +89,8 @@ static int nvec_keys_notifier(struct notifier_block *nb,
static int nvec_kbd_event(struct input_dev *dev, unsigned int type,
unsigned int code, int value)
{
- unsigned char buf[] = ACK_KBD_EVENT;
struct nvec_chip *nvec = keys_dev.nvec;
+ char buf[] = { NVEC_KBD, SET_LEDS, 0 };
if (type == EV_REP)
return 0;
@@ -105,6 +112,11 @@ static int nvec_kbd_probe(struct platform_device *pdev)
struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
int i, j, err;
struct input_dev *idev;
+ char clear_leds[] = { NVEC_KBD, SET_LEDS, 0 },
+ enable_kbd[] = { NVEC_KBD, ENABLE_KBD },
+ cnfg_wake[] = { NVEC_KBD, CNFG_WAKE, true, true },
+ cnfg_wake_key_reporting[] = { NVEC_KBD, CNFG_WAKE_KEY_REPORTING,
+ true };
j = 0;
@@ -138,19 +150,15 @@ static int nvec_kbd_probe(struct platform_device *pdev)
nvec_register_notifier(nvec, &keys_dev.notifier, 0);
/* Enable keyboard */
- nvec_write_async(nvec, "\x05\xf4", 2);
+ nvec_write_async(nvec, enable_kbd, 2);
- /* keyboard reset? */
- nvec_write_async(nvec, "\x05\x03\x01\x01", 4);
- nvec_write_async(nvec, "\x05\x04\x01", 3);
- nvec_write_async(nvec, "\x06\x01\xff\x03", 4);
-/* FIXME
- wait until keyboard reset is finished
- or until we have a sync write */
- mdelay(1000);
+ /* configures wake on special keys */
+ nvec_write_async(nvec, cnfg_wake, 4);
+ /* enable wake key reporting */
+ nvec_write_async(nvec, cnfg_wake_key_reporting, 3);
/* Disable caps lock LED */
- nvec_write_async(nvec, led_off, sizeof(led_off));
+ nvec_write_async(nvec, clear_leds, sizeof(clear_leds));
return 0;
diff --git a/drivers/staging/nvec/nvec_power.c b/drivers/staging/nvec/nvec_power.c
index b7b6d54..296f7b9 100644
--- a/drivers/staging/nvec/nvec_power.c
+++ b/drivers/staging/nvec/nvec_power.c
@@ -22,6 +22,8 @@
#include "nvec.h"
+#define GET_SYSTEM_STATUS 0x00
+
struct nvec_power {
struct notifier_block notifier;
struct delayed_work poller;
@@ -111,7 +113,7 @@ static const int bat_init[] = {
static void get_bat_mfg_data(struct nvec_power *power)
{
int i;
- char buf[] = { '\x02', '\x00' };
+ char buf[] = { NVEC_BAT, SLOT_STATUS };
for (i = 0; i < ARRAY_SIZE(bat_init); i++) {
buf[1] = bat_init[i];
@@ -348,7 +350,7 @@ static int const bat_iter[] = {
static void nvec_power_poll(struct work_struct *work)
{
- char buf[] = { '\x01', '\x00' };
+ char buf[] = { NVEC_SYS, GET_SYSTEM_STATUS };
struct nvec_power *power = container_of(work, struct nvec_power,
poller.work);
@@ -361,7 +363,7 @@ static void nvec_power_poll(struct work_struct *work)
/* select a battery request function via round robin
doing it all at once seems to overload the power supply */
- buf[0] = '\x02'; /* battery */
+ buf[0] = NVEC_BAT;
buf[1] = bat_iter[counter++];
nvec_write_async(power->nvec, buf, 2);
diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index b1a5a96..aff6b9b 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -21,12 +21,11 @@
#include "nvec.h"
-#define START_STREAMING {'\x06', '\x03', '\x06'}
-#define STOP_STREAMING {'\x06', '\x04'}
-#define SEND_COMMAND {'\x06', '\x01', '\xf4', '\x01'}
+#define PACKET_SIZE 6
-#define ENABLE_MOUSE 0xf4
-#define DISABLE_MOUSE 0xf5
+#define ENABLE_MOUSE 0xf4
+#define DISABLE_MOUSE 0xf5
+#define PSMOUSE_RST 0xff
#ifdef NVEC_PS2_DEBUG
#define NVEC_PHD(str, buf, len) \
@@ -36,7 +35,12 @@
#define NVEC_PHD(str, buf, len)
#endif
-static const unsigned char MOUSE_RESET[] = {'\x06', '\x01', '\xff', '\x03'};
+enum ps2_subcmds {
+ SEND_COMMAND = 1,
+ RECEIVE_N,
+ AUTO_RECEIVE_N,
+ CANCEL_AUTO_RECEIVE,
+};
struct nvec_ps2 {
struct serio *ser_dev;
@@ -48,19 +52,19 @@ static struct nvec_ps2 ps2_dev;
static int ps2_startstreaming(struct serio *ser_dev)
{
- unsigned char buf[] = START_STREAMING;
+ unsigned char buf[] = { NVEC_PS2, AUTO_RECEIVE_N, PACKET_SIZE };
return nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
}
static void ps2_stopstreaming(struct serio *ser_dev)
{
- unsigned char buf[] = STOP_STREAMING;
+ unsigned char buf[] = { NVEC_PS2, CANCEL_AUTO_RECEIVE };
nvec_write_async(ps2_dev.nvec, buf, sizeof(buf));
}
static int ps2_sendcommand(struct serio *ser_dev, unsigned char cmd)
{
- unsigned char buf[] = SEND_COMMAND;
+ unsigned char buf[] = { NVEC_PS2, SEND_COMMAND, ENABLE_MOUSE, 1 };
buf[2] = cmd & 0xff;
@@ -100,6 +104,7 @@ static int nvec_mouse_probe(struct platform_device *pdev)
{
struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
struct serio *ser_dev;
+ char mouse_reset[] = { NVEC_PS2, SEND_COMMAND, PSMOUSE_RST, 3 };
ser_dev = devm_kzalloc(&pdev->dev, sizeof(struct serio), GFP_KERNEL);
if (ser_dev == NULL)
@@ -121,7 +126,7 @@ static int nvec_mouse_probe(struct platform_device *pdev)
serio_register_port(ser_dev);
/* mouse reset */
- nvec_write_async(nvec, MOUSE_RESET, 4);
+ nvec_write_async(nvec, mouse_reset, sizeof(mouse_reset));
return 0;
}
--
1.7.9.5
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