forked from mirrors/linux
		
	Bluetooth: btrtl: Add Realtek devcoredump support
Catch debug exception from controller and driver, and trigger a devcoredump using hci devcoredump APIs. The debug exception data will be parsed in userspace. Signed-off-by: Alex Lu <alex_lu@realsil.com.cn> Signed-off-by: Hilda Wu <hildawu@realtek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
		
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						044014ce85
					
				
					 3 changed files with 205 additions and 27 deletions
				
			
		| 
						 | 
				
			
			@ -32,6 +32,8 @@
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#define RTL_ROM_LMP_8851B	0x8851
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#define RTL_CONFIG_MAGIC	0x8723ab55
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#define RTL_VSC_OP_COREDUMP	0xfcff
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#define IC_MATCH_FL_LMPSUBV	(1 << 0)
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#define IC_MATCH_FL_HCIREV	(1 << 1)
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#define IC_MATCH_FL_HCIVER	(1 << 2)
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			@ -81,6 +83,7 @@ struct id_table {
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	bool has_msft_ext;
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	char *fw_name;
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	char *cfg_name;
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	char *hw_info;
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};
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struct btrtl_device_info {
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						 | 
				
			
			@ -102,21 +105,24 @@ static const struct id_table ic_id_table[] = {
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	  .config_needed = false,
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	  .has_rom_version = false,
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	  .fw_name = "rtl_bt/rtl8723a_fw.bin",
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	  .cfg_name = NULL },
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	  .cfg_name = NULL,
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	  .hw_info = "rtl8723au" },
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	/* 8723BS */
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	{ IC_INFO(RTL_ROM_LMP_8723B, 0xb, 0x6, HCI_UART),
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	  .config_needed = true,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8723bs_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8723bs_config" },
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	  .cfg_name = "rtl_bt/rtl8723bs_config",
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	  .hw_info  = "rtl8723bs" },
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	/* 8723B */
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	{ IC_INFO(RTL_ROM_LMP_8723B, 0xb, 0x6, HCI_USB),
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	  .config_needed = false,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8723b_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8723b_config" },
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	  .cfg_name = "rtl_bt/rtl8723b_config",
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	  .hw_info  = "rtl8723bu" },
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	/* 8723CS-CG */
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	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
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						 | 
				
			
			@ -127,7 +133,8 @@ static const struct id_table ic_id_table[] = {
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	  .config_needed = true,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8723cs_cg_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8723cs_cg_config" },
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	  .cfg_name = "rtl_bt/rtl8723cs_cg_config",
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	  .hw_info  = "rtl8723cs-cg" },
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	/* 8723CS-VF */
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	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
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						 | 
				
			
			@ -138,7 +145,8 @@ static const struct id_table ic_id_table[] = {
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	  .config_needed = true,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8723cs_vf_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8723cs_vf_config" },
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	  .cfg_name = "rtl_bt/rtl8723cs_vf_config",
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	  .hw_info  = "rtl8723cs-vf" },
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	/* 8723CS-XX */
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	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
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						 | 
				
			
			@ -149,28 +157,32 @@ static const struct id_table ic_id_table[] = {
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	  .config_needed = true,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8723cs_xx_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8723cs_xx_config" },
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	  .cfg_name = "rtl_bt/rtl8723cs_xx_config",
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	  .hw_info  = "rtl8723cs" },
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	/* 8723D */
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	{ IC_INFO(RTL_ROM_LMP_8723B, 0xd, 0x8, HCI_USB),
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	  .config_needed = true,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8723d_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8723d_config" },
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	  .cfg_name = "rtl_bt/rtl8723d_config",
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	  .hw_info  = "rtl8723du" },
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	/* 8723DS */
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	{ IC_INFO(RTL_ROM_LMP_8723B, 0xd, 0x8, HCI_UART),
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	  .config_needed = true,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8723ds_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8723ds_config" },
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	  .cfg_name = "rtl_bt/rtl8723ds_config",
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	  .hw_info  = "rtl8723ds" },
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	/* 8821A */
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	{ IC_INFO(RTL_ROM_LMP_8821A, 0xa, 0x6, HCI_USB),
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	  .config_needed = false,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8821a_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8821a_config" },
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	  .cfg_name = "rtl_bt/rtl8821a_config",
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	  .hw_info  = "rtl8821au" },
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	/* 8821C */
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	{ IC_INFO(RTL_ROM_LMP_8821A, 0xc, 0x8, HCI_USB),
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						 | 
				
			
			@ -178,7 +190,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8821c_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8821c_config" },
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	  .cfg_name = "rtl_bt/rtl8821c_config",
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	  .hw_info  = "rtl8821cu" },
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	/* 8821CS */
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	{ IC_INFO(RTL_ROM_LMP_8821A, 0xc, 0x8, HCI_UART),
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			@ -186,14 +199,16 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8821cs_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8821cs_config" },
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	  .cfg_name = "rtl_bt/rtl8821cs_config",
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	  .hw_info  = "rtl8821cs" },
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	/* 8761A */
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	{ IC_INFO(RTL_ROM_LMP_8761A, 0xa, 0x6, HCI_USB),
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	  .config_needed = false,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8761a_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8761a_config" },
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	  .cfg_name = "rtl_bt/rtl8761a_config",
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	  .hw_info  = "rtl8761au" },
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	/* 8761B */
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	{ IC_INFO(RTL_ROM_LMP_8761A, 0xb, 0xa, HCI_UART),
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						 | 
				
			
			@ -201,14 +216,16 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8761b_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8761b_config" },
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	  .cfg_name = "rtl_bt/rtl8761b_config",
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	  .hw_info  = "rtl8761btv" },
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	/* 8761BU */
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	{ IC_INFO(RTL_ROM_LMP_8761A, 0xb, 0xa, HCI_USB),
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	  .config_needed = false,
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	  .has_rom_version = true,
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	  .fw_name  = "rtl_bt/rtl8761bu_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8761bu_config" },
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	  .cfg_name = "rtl_bt/rtl8761bu_config",
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	  .hw_info  = "rtl8761bu" },
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	/* 8822C with UART interface */
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	{ IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0x8, HCI_UART),
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			@ -216,7 +233,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8822cs_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8822cs_config" },
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	  .cfg_name = "rtl_bt/rtl8822cs_config",
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	  .hw_info  = "rtl8822cs" },
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	/* 8822C with UART interface */
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	{ IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0xa, HCI_UART),
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			@ -224,7 +242,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8822cs_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8822cs_config" },
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	  .cfg_name = "rtl_bt/rtl8822cs_config",
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	  .hw_info  = "rtl8822cs" },
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	/* 8822C with USB interface */
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	{ IC_INFO(RTL_ROM_LMP_8822B, 0xc, 0xa, HCI_USB),
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			@ -232,7 +251,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8822cu_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8822cu_config" },
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	  .cfg_name = "rtl_bt/rtl8822cu_config",
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	  .hw_info  = "rtl8822cu" },
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	/* 8822B */
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	{ IC_INFO(RTL_ROM_LMP_8822B, 0xb, 0x7, HCI_USB),
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			@ -240,7 +260,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8822b_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8822b_config" },
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	  .cfg_name = "rtl_bt/rtl8822b_config",
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	  .hw_info  = "rtl8822bu" },
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	/* 8852A */
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	{ IC_INFO(RTL_ROM_LMP_8852A, 0xa, 0xb, HCI_USB),
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			@ -248,7 +269,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8852au_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8852au_config" },
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	  .cfg_name = "rtl_bt/rtl8852au_config",
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	  .hw_info  = "rtl8852au" },
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	/* 8852B with UART interface */
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	{ IC_INFO(RTL_ROM_LMP_8852A, 0xb, 0xb, HCI_UART),
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			@ -256,7 +278,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8852bs_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8852bs_config" },
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	  .cfg_name = "rtl_bt/rtl8852bs_config",
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	  .hw_info  = "rtl8852bs" },
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	/* 8852B */
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	{ IC_INFO(RTL_ROM_LMP_8852A, 0xb, 0xb, HCI_USB),
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						 | 
				
			
			@ -264,7 +287,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8852bu_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8852bu_config" },
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	  .cfg_name = "rtl_bt/rtl8852bu_config",
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	  .hw_info  = "rtl8852bu" },
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	/* 8852C */
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	{ IC_INFO(RTL_ROM_LMP_8852A, 0xc, 0xc, HCI_USB),
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						 | 
				
			
			@ -272,7 +296,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = true,
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	  .fw_name  = "rtl_bt/rtl8852cu_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8852cu_config" },
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	  .cfg_name = "rtl_bt/rtl8852cu_config",
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	  .hw_info  = "rtl8852cu" },
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	/* 8851B */
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	{ IC_INFO(RTL_ROM_LMP_8851B, 0xb, 0xc, HCI_USB),
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			@ -280,7 +305,8 @@ static const struct id_table ic_id_table[] = {
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	  .has_rom_version = true,
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	  .has_msft_ext = false,
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	  .fw_name  = "rtl_bt/rtl8851bu_fw.bin",
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	  .cfg_name = "rtl_bt/rtl8851bu_config" },
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	  .cfg_name = "rtl_bt/rtl8851bu_config",
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	  .hw_info  = "rtl8851bu" },
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	};
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static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
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						 | 
				
			
			@ -590,6 +616,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
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				unsigned char **_buf)
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{
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	static const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
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	struct btrealtek_data *coredump_info = hci_get_priv(hdev);
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	struct rtl_epatch_header *epatch_info;
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	unsigned char *buf;
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	int i, len;
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			@ -705,8 +732,10 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
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	epatch_info = (struct rtl_epatch_header *)btrtl_dev->fw_data;
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	num_patches = le16_to_cpu(epatch_info->num_patches);
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	BT_DBG("fw_version=%x, num_patches=%d",
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	       le32_to_cpu(epatch_info->fw_version), num_patches);
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	coredump_info->rtl_dump.fw_version = le32_to_cpu(epatch_info->fw_version);
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	/* After the rtl_epatch_header there is a funky patch metadata section.
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	 * Assuming 2 patches, the layout is:
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			@ -903,6 +932,53 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
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	return ret;
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}
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static void btrtl_coredump(struct hci_dev *hdev)
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{
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	static const u8 param[] = { 0x00, 0x00 };
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	__hci_cmd_send(hdev, RTL_VSC_OP_COREDUMP, sizeof(param), param);
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}
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static void btrtl_dmp_hdr(struct hci_dev *hdev, struct sk_buff *skb)
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{
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	struct btrealtek_data *coredump_info = hci_get_priv(hdev);
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	char buf[80];
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	if (coredump_info->rtl_dump.controller)
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		snprintf(buf, sizeof(buf), "Controller Name: %s\n",
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			 coredump_info->rtl_dump.controller);
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	else
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		snprintf(buf, sizeof(buf), "Controller Name: Unknown\n");
 | 
			
		||||
	skb_put_data(skb, buf, strlen(buf));
 | 
			
		||||
 | 
			
		||||
	snprintf(buf, sizeof(buf), "Firmware Version: 0x%X\n",
 | 
			
		||||
		 coredump_info->rtl_dump.fw_version);
 | 
			
		||||
	skb_put_data(skb, buf, strlen(buf));
 | 
			
		||||
 | 
			
		||||
	snprintf(buf, sizeof(buf), "Driver: %s\n", coredump_info->rtl_dump.driver_name);
 | 
			
		||||
	skb_put_data(skb, buf, strlen(buf));
 | 
			
		||||
 | 
			
		||||
	snprintf(buf, sizeof(buf), "Vendor: Realtek\n");
 | 
			
		||||
	skb_put_data(skb, buf, strlen(buf));
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int btrtl_register_devcoredump_support(struct hci_dev *hdev)
 | 
			
		||||
{
 | 
			
		||||
	int err;
 | 
			
		||||
 | 
			
		||||
	err = hci_devcd_register(hdev, btrtl_coredump, btrtl_dmp_hdr, NULL);
 | 
			
		||||
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name)
 | 
			
		||||
{
 | 
			
		||||
	struct btrealtek_data *coredump_info = hci_get_priv(hdev);
 | 
			
		||||
 | 
			
		||||
	coredump_info->rtl_dump.driver_name = driver_name;
 | 
			
		||||
}
 | 
			
		||||
EXPORT_SYMBOL_GPL(btrtl_set_driver_name);
 | 
			
		||||
 | 
			
		||||
static bool rtl_has_chip_type(u16 lmp_subver)
 | 
			
		||||
{
 | 
			
		||||
	switch (lmp_subver) {
 | 
			
		||||
| 
						 | 
				
			
			@ -964,6 +1040,7 @@ EXPORT_SYMBOL_GPL(btrtl_free);
 | 
			
		|||
struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 | 
			
		||||
					   const char *postfix)
 | 
			
		||||
{
 | 
			
		||||
	struct btrealtek_data *coredump_info = hci_get_priv(hdev);
 | 
			
		||||
	struct btrtl_device_info *btrtl_dev;
 | 
			
		||||
	struct sk_buff *skb;
 | 
			
		||||
	struct hci_rp_read_local_version *resp;
 | 
			
		||||
| 
						 | 
				
			
			@ -1113,6 +1190,9 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 | 
			
		|||
	if (btrtl_dev->ic_info->has_msft_ext)
 | 
			
		||||
		hci_set_msft_opcode(hdev, 0xFCF0);
 | 
			
		||||
 | 
			
		||||
	if (btrtl_dev->ic_info)
 | 
			
		||||
		coredump_info->rtl_dump.controller = btrtl_dev->ic_info->hw_info;
 | 
			
		||||
 | 
			
		||||
	return btrtl_dev;
 | 
			
		||||
 | 
			
		||||
err_free:
 | 
			
		||||
| 
						 | 
				
			
			@ -1125,6 +1205,8 @@ EXPORT_SYMBOL_GPL(btrtl_initialize);
 | 
			
		|||
int btrtl_download_firmware(struct hci_dev *hdev,
 | 
			
		||||
			    struct btrtl_device_info *btrtl_dev)
 | 
			
		||||
{
 | 
			
		||||
	int err = 0;
 | 
			
		||||
 | 
			
		||||
	/* Match a set of subver values that correspond to stock firmware,
 | 
			
		||||
	 * which is not compatible with standard btusb.
 | 
			
		||||
	 * If matched, upload an alternative firmware that does conform to
 | 
			
		||||
| 
						 | 
				
			
			@ -1133,12 +1215,14 @@ int btrtl_download_firmware(struct hci_dev *hdev,
 | 
			
		|||
	 */
 | 
			
		||||
	if (!btrtl_dev->ic_info) {
 | 
			
		||||
		rtl_dev_info(hdev, "assuming no firmware upload needed");
 | 
			
		||||
		return 0;
 | 
			
		||||
		err = 0;
 | 
			
		||||
		goto done;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	switch (btrtl_dev->ic_info->lmp_subver) {
 | 
			
		||||
	case RTL_ROM_LMP_8723A:
 | 
			
		||||
		return btrtl_setup_rtl8723a(hdev, btrtl_dev);
 | 
			
		||||
		err = btrtl_setup_rtl8723a(hdev, btrtl_dev);
 | 
			
		||||
		break;
 | 
			
		||||
	case RTL_ROM_LMP_8723B:
 | 
			
		||||
	case RTL_ROM_LMP_8821A:
 | 
			
		||||
	case RTL_ROM_LMP_8761A:
 | 
			
		||||
| 
						 | 
				
			
			@ -1146,11 +1230,18 @@ int btrtl_download_firmware(struct hci_dev *hdev,
 | 
			
		|||
	case RTL_ROM_LMP_8852A:
 | 
			
		||||
	case RTL_ROM_LMP_8703B:
 | 
			
		||||
	case RTL_ROM_LMP_8851B:
 | 
			
		||||
		return btrtl_setup_rtl8723b(hdev, btrtl_dev);
 | 
			
		||||
		err = btrtl_setup_rtl8723b(hdev, btrtl_dev);
 | 
			
		||||
		break;
 | 
			
		||||
	default:
 | 
			
		||||
		rtl_dev_info(hdev, "assuming no firmware upload needed");
 | 
			
		||||
		return 0;
 | 
			
		||||
		break;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
done:
 | 
			
		||||
	if (!err)
 | 
			
		||||
		err = btrtl_register_devcoredump_support(hdev);
 | 
			
		||||
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
EXPORT_SYMBOL_GPL(btrtl_download_firmware);
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -109,8 +109,16 @@ enum {
 | 
			
		|||
	__REALTEK_NUM_FLAGS,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
struct rtl_dump_info {
 | 
			
		||||
	const char *driver_name;
 | 
			
		||||
	char *controller;
 | 
			
		||||
	u32  fw_version;
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
struct btrealtek_data {
 | 
			
		||||
	DECLARE_BITMAP(flags, __REALTEK_NUM_FLAGS);
 | 
			
		||||
 | 
			
		||||
	struct rtl_dump_info rtl_dump;
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
#define btrealtek_set_flag(hdev, nr)					\
 | 
			
		||||
| 
						 | 
				
			
			@ -139,6 +147,7 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
 | 
			
		|||
			    struct btrtl_device_info *btrtl_dev,
 | 
			
		||||
			    unsigned int *controller_baudrate,
 | 
			
		||||
			    u32 *device_baudrate, bool *flow_control);
 | 
			
		||||
void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name);
 | 
			
		||||
 | 
			
		||||
#else
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -182,4 +191,8 @@ static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
 | 
			
		|||
	return -ENOENT;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static inline void btrtl_set_driver_name(struct hci_dev *hdev, const char *driver_name)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#endif
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -887,10 +887,49 @@ static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 | 
			
		|||
	gpiod_set_value_cansleep(reset_gpio, 0);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#define RTK_DEVCOREDUMP_CODE_MEMDUMP		0x01
 | 
			
		||||
#define RTK_DEVCOREDUMP_CODE_HW_ERR		0x02
 | 
			
		||||
#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT	0x03
 | 
			
		||||
 | 
			
		||||
#define RTK_SUB_EVENT_CODE_COREDUMP		0x34
 | 
			
		||||
 | 
			
		||||
struct rtk_dev_coredump_hdr {
 | 
			
		||||
	u8 type;
 | 
			
		||||
	u8 code;
 | 
			
		||||
	u8 reserved[2];
 | 
			
		||||
} __packed;
 | 
			
		||||
 | 
			
		||||
static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 | 
			
		||||
		struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 | 
			
		||||
{
 | 
			
		||||
	struct sk_buff *skb;
 | 
			
		||||
 | 
			
		||||
	skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 | 
			
		||||
	if (!skb)
 | 
			
		||||
		return;
 | 
			
		||||
 | 
			
		||||
	skb_put_data(skb, hdr, sizeof(*hdr));
 | 
			
		||||
	if (len)
 | 
			
		||||
		skb_put_data(skb, buf, len);
 | 
			
		||||
 | 
			
		||||
	if (!hci_devcd_init(hdev, skb->len)) {
 | 
			
		||||
		hci_devcd_append(hdev, skb);
 | 
			
		||||
		hci_devcd_complete(hdev);
 | 
			
		||||
	} else {
 | 
			
		||||
		bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 | 
			
		||||
		kfree_skb(skb);
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 | 
			
		||||
{
 | 
			
		||||
	struct btusb_data *data = hci_get_drvdata(hdev);
 | 
			
		||||
	struct gpio_desc *reset_gpio = data->reset_gpio;
 | 
			
		||||
	struct rtk_dev_coredump_hdr hdr = {
 | 
			
		||||
		.type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
 | 
			
		||||
	};
 | 
			
		||||
 | 
			
		||||
	btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 | 
			
		||||
 | 
			
		||||
	if (++data->cmd_timeout_cnt < 5)
 | 
			
		||||
		return;
 | 
			
		||||
| 
						 | 
				
			
			@ -917,6 +956,18 @@ static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 | 
			
		|||
	gpiod_set_value_cansleep(reset_gpio, 0);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
 | 
			
		||||
{
 | 
			
		||||
	struct rtk_dev_coredump_hdr hdr = {
 | 
			
		||||
		.type = RTK_DEVCOREDUMP_CODE_HW_ERR,
 | 
			
		||||
		.code = code,
 | 
			
		||||
	};
 | 
			
		||||
 | 
			
		||||
	bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
 | 
			
		||||
 | 
			
		||||
	btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
 | 
			
		||||
{
 | 
			
		||||
	struct btusb_data *data = hci_get_drvdata(hdev);
 | 
			
		||||
| 
						 | 
				
			
			@ -2562,6 +2613,25 @@ static int btusb_setup_realtek(struct hci_dev *hdev)
 | 
			
		|||
	return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
 | 
			
		||||
{
 | 
			
		||||
	if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
 | 
			
		||||
		struct rtk_dev_coredump_hdr hdr = {
 | 
			
		||||
			.code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
 | 
			
		||||
		};
 | 
			
		||||
 | 
			
		||||
		bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
 | 
			
		||||
			skb->len);
 | 
			
		||||
 | 
			
		||||
		btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
 | 
			
		||||
		kfree_skb(skb);
 | 
			
		||||
 | 
			
		||||
		return 0;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return hci_recv_frame(hdev, skb);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* UHW CR mapping */
 | 
			
		||||
#define MTK_BT_MISC		0x70002510
 | 
			
		||||
#define MTK_BT_SUBSYS_RST	0x70002610
 | 
			
		||||
| 
						 | 
				
			
			@ -4201,6 +4271,8 @@ static int btusb_probe(struct usb_interface *intf,
 | 
			
		|||
	} else if (id->driver_info & BTUSB_REALTEK) {
 | 
			
		||||
		/* Allocate extra space for Realtek device */
 | 
			
		||||
		priv_size += sizeof(struct btrealtek_data);
 | 
			
		||||
 | 
			
		||||
		data->recv_event = btusb_recv_event_realtek;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	data->recv_acl = hci_recv_frame;
 | 
			
		||||
| 
						 | 
				
			
			@ -4364,9 +4436,11 @@ static int btusb_probe(struct usb_interface *intf,
 | 
			
		|||
 | 
			
		||||
	if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
 | 
			
		||||
	    (id->driver_info & BTUSB_REALTEK)) {
 | 
			
		||||
		btrtl_set_driver_name(hdev, btusb_driver.name);
 | 
			
		||||
		hdev->setup = btusb_setup_realtek;
 | 
			
		||||
		hdev->shutdown = btrtl_shutdown_realtek;
 | 
			
		||||
		hdev->cmd_timeout = btusb_rtl_cmd_timeout;
 | 
			
		||||
		hdev->hw_error = btusb_rtl_hw_error;
 | 
			
		||||
 | 
			
		||||
		/* Realtek devices need to set remote wakeup on auto-suspend */
 | 
			
		||||
		set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
		Loading…
	
		Reference in a new issue