From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver

---
 kernel/drivers/media/pci/smipcie/smipcie-ir.c |  168 ++++++++++++++++++++-----------------------------------
 1 files changed, 61 insertions(+), 107 deletions(-)

diff --git a/kernel/drivers/media/pci/smipcie/smipcie-ir.c b/kernel/drivers/media/pci/smipcie/smipcie-ir.c
index c5595af..c0604d9 100644
--- a/kernel/drivers/media/pci/smipcie/smipcie-ir.c
+++ b/kernel/drivers/media/pci/smipcie/smipcie-ir.c
@@ -1,20 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * SMI PCIe driver for DVBSky cards.
  *
  * Copyright (C) 2014 Max nibble <nibble.max@gmail.com>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
  */
 
 #include "smipcie.h"
+
+#define SMI_SAMPLE_PERIOD 83
+#define SMI_SAMPLE_IDLEMIN (10000 / SMI_SAMPLE_PERIOD)
 
 static void smi_ir_enableInterrupt(struct smi_rc *ir)
 {
@@ -42,114 +36,69 @@
 	struct smi_dev *dev = ir->dev;
 
 	smi_ir_disableInterrupt(ir);
-	smi_clear(IR_Init_Reg, 0x80);
+	smi_clear(IR_Init_Reg, rbIRen);
 }
 
-#define BITS_PER_COMMAND 14
-#define GROUPS_PER_BIT 2
-#define IR_RC5_MIN_BIT 36
-#define IR_RC5_MAX_BIT 52
-static u32 smi_decode_rc5(u8 *pData, u8 size)
+static void smi_raw_process(struct rc_dev *rc_dev, const u8 *buffer,
+			    const u8 length)
 {
-	u8 index, current_bit, bit_count;
-	u8 group_array[BITS_PER_COMMAND * GROUPS_PER_BIT + 4];
-	u8 group_index = 0;
-	u32 command = 0xFFFFFFFF;
+	struct ir_raw_event rawir = {};
+	int cnt;
 
-	group_array[group_index++] = 1;
-
-	for (index = 0; index < size; index++) {
-
-		current_bit = (pData[index] & 0x80) ? 1 : 0;
-		bit_count = pData[index] & 0x7f;
-
-		if ((current_bit == 1) && (bit_count >= 2*IR_RC5_MAX_BIT + 1)) {
-			goto process_code;
-		} else if ((bit_count >= IR_RC5_MIN_BIT) &&
-			   (bit_count <= IR_RC5_MAX_BIT)) {
-				group_array[group_index++] = current_bit;
-		} else if ((bit_count > IR_RC5_MAX_BIT) &&
-			   (bit_count <= 2*IR_RC5_MAX_BIT)) {
-				group_array[group_index++] = current_bit;
-				group_array[group_index++] = current_bit;
-		} else {
-			goto invalid_timing;
-		}
-		if (group_index >= BITS_PER_COMMAND*GROUPS_PER_BIT)
-			goto process_code;
-
-		if ((group_index == BITS_PER_COMMAND*GROUPS_PER_BIT - 1)
-		    && (group_array[group_index-1] == 0)) {
-			group_array[group_index++] = 1;
-			goto process_code;
+	for (cnt = 0; cnt < length; cnt++) {
+		if (buffer[cnt] & 0x7f) {
+			rawir.pulse = (buffer[cnt] & 0x80) == 0;
+			rawir.duration = ((buffer[cnt] & 0x7f) +
+					 (rawir.pulse ? 0 : -1)) *
+					 rc_dev->rx_resolution;
+			ir_raw_event_store_with_filter(rc_dev, &rawir);
 		}
 	}
-
-process_code:
-	if (group_index == (BITS_PER_COMMAND*GROUPS_PER_BIT-1))
-		group_array[group_index++] = 1;
-
-	if (group_index == BITS_PER_COMMAND*GROUPS_PER_BIT) {
-		command = 0;
-		for (index = 0; index < (BITS_PER_COMMAND*GROUPS_PER_BIT);
-		     index = index + 2) {
-			if ((group_array[index] == 1) &&
-			    (group_array[index+1] == 0)) {
-				command |= (1 << (BITS_PER_COMMAND -
-						   (index/2) - 1));
-			} else if ((group_array[index] == 0) &&
-				   (group_array[index+1] == 1)) {
-				/* */
-			} else {
-				command = 0xFFFFFFFF;
-				goto invalid_timing;
-			}
-		}
-	}
-
-invalid_timing:
-	return command;
 }
 
-static void smi_ir_decode(struct work_struct *work)
+static void smi_ir_decode(struct smi_rc *ir)
 {
-	struct smi_rc *ir = container_of(work, struct smi_rc, work);
 	struct smi_dev *dev = ir->dev;
 	struct rc_dev *rc_dev = ir->rc_dev;
-	u32 dwIRControl, dwIRData, dwIRCode, scancode;
-	u8 index, ucIRCount, readLoop, rc5_command, rc5_system, toggle;
+	u32 control, data;
+	u8 index, ir_count, read_loop;
 
-	dwIRControl = smi_read(IR_Init_Reg);
-	if (dwIRControl & rbIRVld) {
-		ucIRCount = (u8) smi_read(IR_Data_Cnt);
+	control = smi_read(IR_Init_Reg);
 
-		if (ucIRCount < 4)
-			goto end_ir_decode;
+	dev_dbg(&rc_dev->dev, "ircontrol: 0x%08x\n", control);
 
-		readLoop = ucIRCount/4;
-		if (ucIRCount % 4)
-			readLoop += 1;
-		for (index = 0; index < readLoop; index++) {
-			dwIRData = smi_read(IR_DATA_BUFFER_BASE + (index*4));
+	if (control & rbIRVld) {
+		ir_count = (u8)smi_read(IR_Data_Cnt);
 
-			ir->irData[index*4 + 0] = (u8)(dwIRData);
-			ir->irData[index*4 + 1] = (u8)(dwIRData >> 8);
-			ir->irData[index*4 + 2] = (u8)(dwIRData >> 16);
-			ir->irData[index*4 + 3] = (u8)(dwIRData >> 24);
+		dev_dbg(&rc_dev->dev, "ircount %d\n", ir_count);
+
+		read_loop = ir_count / 4;
+		if (ir_count % 4)
+			read_loop += 1;
+		for (index = 0; index < read_loop; index++) {
+			data = smi_read(IR_DATA_BUFFER_BASE + (index * 4));
+			dev_dbg(&rc_dev->dev, "IRData 0x%08x\n", data);
+
+			ir->irData[index * 4 + 0] = (u8)(data);
+			ir->irData[index * 4 + 1] = (u8)(data >> 8);
+			ir->irData[index * 4 + 2] = (u8)(data >> 16);
+			ir->irData[index * 4 + 3] = (u8)(data >> 24);
 		}
-		dwIRCode = smi_decode_rc5(ir->irData, ucIRCount);
-
-		if (dwIRCode != 0xFFFFFFFF) {
-			rc5_command = dwIRCode & 0x3F;
-			rc5_system = (dwIRCode & 0x7C0) >> 6;
-			toggle = (dwIRCode & 0x800) ? 1 : 0;
-			scancode = rc5_system << 8 | rc5_command;
-			rc_keydown(rc_dev, RC_PROTO_RC5, scancode, toggle);
-		}
+		smi_raw_process(rc_dev, ir->irData, ir_count);
 	}
-end_ir_decode:
-	smi_set(IR_Init_Reg, 0x04);
-	smi_ir_enableInterrupt(ir);
+
+	if (control & rbIRhighidle) {
+		struct ir_raw_event rawir = {};
+
+		dev_dbg(&rc_dev->dev, "high idle\n");
+
+		rawir.pulse = 0;
+		rawir.duration = SMI_SAMPLE_PERIOD * SMI_SAMPLE_IDLEMIN;
+		ir_raw_event_store_with_filter(rc_dev, &rawir);
+	}
+
+	smi_set(IR_Init_Reg, rbIRVld);
+	ir_raw_event_handle(rc_dev);
 }
 
 /* ir functions call by main driver.*/
@@ -160,7 +109,8 @@
 	if (int_status & IR_X_INT) {
 		smi_ir_disableInterrupt(ir);
 		smi_ir_clearInterrupt(ir);
-		schedule_work(&ir->work);
+		smi_ir_decode(ir);
+		smi_ir_enableInterrupt(ir);
 		handled = 1;
 	}
 	return handled;
@@ -170,9 +120,11 @@
 {
 	struct smi_dev *dev = ir->dev;
 
-	smi_write(IR_Idle_Cnt_Low, 0x00140070);
+	smi_write(IR_Idle_Cnt_Low,
+		  (((SMI_SAMPLE_PERIOD - 1) & 0xFFFF) << 16) |
+		  (SMI_SAMPLE_IDLEMIN & 0xFFFF));
 	msleep(20);
-	smi_set(IR_Init_Reg, 0x90);
+	smi_set(IR_Init_Reg, rbIRen | rbIRhighidle);
 
 	smi_ir_enableInterrupt(ir);
 }
@@ -183,7 +135,7 @@
 	struct rc_dev *rc_dev;
 	struct smi_rc *ir = &dev->ir;
 
-	rc_dev = rc_allocate_device(RC_DRIVER_SCANCODE);
+	rc_dev = rc_allocate_device(RC_DRIVER_IR_RAW);
 	if (!rc_dev)
 		return -ENOMEM;
 
@@ -193,6 +145,7 @@
 	snprintf(ir->input_phys, sizeof(ir->input_phys), "pci-%s/ir0",
 		 pci_name(dev->pci_dev));
 
+	rc_dev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
 	rc_dev->driver_name = "SMI_PCIe";
 	rc_dev->input_phys = ir->input_phys;
 	rc_dev->device_name = ir->device_name;
@@ -203,11 +156,12 @@
 	rc_dev->dev.parent = &dev->pci_dev->dev;
 
 	rc_dev->map_name = dev->info->rc_map;
+	rc_dev->timeout = SMI_SAMPLE_PERIOD * SMI_SAMPLE_IDLEMIN;
+	rc_dev->rx_resolution = SMI_SAMPLE_PERIOD;
 
 	ir->rc_dev = rc_dev;
 	ir->dev = dev;
 
-	INIT_WORK(&ir->work, smi_ir_decode);
 	smi_ir_disableInterrupt(ir);
 
 	ret = rc_register_device(rc_dev);
@@ -225,7 +179,7 @@
 	struct smi_rc *ir = &dev->ir;
 	struct rc_dev *rc_dev = ir->rc_dev;
 
-	smi_ir_stop(ir);
 	rc_unregister_device(rc_dev);
+	smi_ir_stop(ir);
 	ir->rc_dev = NULL;
 }

--
Gitblit v1.6.2