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Commit 96ed5846 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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Staging: rtl8192e: coding style cleanups on r819xE_firmware.c 



This cleans up everything but a few 80 column issues in the
r819xE_firmware.c file.

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 5bf30d96

drivers/staging/rtl8192e/r819xE_firmware.c

+160 −169
Original line number Diff line number Diff line 
/**************************************************************************************************

/*

 * Procedure:    Init boot code/firmware code/data session

 *

 * Description: This routine will intialize firmware. If any error occurs during the initialization

 * 		process, the routine shall terminate immediately and return fail.

 *		NIC driver should call NdisOpenFile only from MiniportInitialize.

 * Description: This routine will intialize firmware. If any error occurs

 *		during the initialization process, the routine shall terminate

 *		immediately and return fail.  NIC driver should call

 *		NdisOpenFile only from MiniportInitialize.

 *

 * Arguments:   The pointer of the adapter



 * Returns:

 *        NDIS_STATUS_FAILURE - the following initialization process should be terminated

 *        NDIS_STATUS_SUCCESS - if firmware initialization process success

**************************************************************************************************/

//#include "ieee80211.h"

 *		NDIS_STATUS_FAILURE - the following initialization process

 *				      should be terminated

 *		NDIS_STATUS_SUCCESS - if firmware initialization process

 *				      success

 */

#include "r8192E.h"

#include "r8192E_hw.h"

#include <linux/firmware.h>
@@ -19,36 +21,36 @@ 
/* It should be double word alignment */

#define GET_COMMAND_PACKET_FRAG_THRESHOLD(v)	(4 * (v / 4) - 8)



typedef enum _firmware_init_step{

enum firmware_init_step {

	FW_INIT_STEP0_BOOT = 0,

	FW_INIT_STEP1_MAIN = 1,

	FW_INIT_STEP2_DATA = 2,

}firmware_init_step_e;

};



typedef enum _opt_rst_type{

enum opt_rst_type {

	OPT_SYSTEM_RESET = 0,

	OPT_FIRMWARE_RESET = 1,

}opt_rst_type_e;

};



void firmware_init_param(struct net_device *dev)

{

	struct r8192_priv *priv = ieee80211_priv(dev);

	rt_firmware *pfirmware = priv->pFirmware;



	pfirmware->cmdpacket_frag_thresold = GET_COMMAND_PACKET_FRAG_THRESHOLD(MAX_TRANSMIT_BUFFER_SIZE);

	pfirmware->cmdpacket_frag_thresold =

		GET_COMMAND_PACKET_FRAG_THRESHOLD(MAX_TRANSMIT_BUFFER_SIZE);

}



/*

 * segment the img and use the ptr and length to remember info on each segment

 *

 */

static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, u32 buffer_len)

static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,

			     u32 buffer_len)

{

	struct r8192_priv   *priv = ieee80211_priv(dev);

	bool 		    rt_status = true;

	u16		    frag_threshold;

	u16		    frag_length, frag_offset = 0;

	//u16		    total_size;

	int		    i;



	rt_firmware	    *pfirmware = priv->pFirmware;
@@ -58,23 +60,22 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, u 
	u8                  bLastIniPkt;



	firmware_init_param(dev);

	//Fragmentation might be required



	/* Fragmentation might be required */

	frag_threshold = pfirmware->cmdpacket_frag_thresold;

	do {

		if ((buffer_len - frag_offset) > frag_threshold) {

			frag_length = frag_threshold ;

			bLastIniPkt = 0;



		} else {

			frag_length = buffer_len - frag_offset;

			bLastIniPkt = 1;



		}



		/* Allocate skb buffer to contain firmware info and tx descriptor info

		 * add 4 to avoid packet appending overflow.

		 * */

		//skb  = dev_alloc_skb(USB_HWDESC_HEADER_LEN + frag_length + 4);

		/*

		 * Allocate skb buffer to contain firmware info and tx

		 * descriptor info add 4 to avoid packet appending overflow.

		 */

		skb  = dev_alloc_skb(frag_length + 4);

		memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));

		tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
@@ -82,11 +83,10 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, u 
		tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT;

		tcb_desc->bLastIniPkt = bLastIniPkt;



		//skb_reserve(skb, USB_HWDESC_HEADER_LEN);

		seg_ptr = skb->data;



		/*

		 * Transform from little endian to big endian

                 * and pending  zero

		 * Transform from little endian to big endian and pending zero

		 */

		for (i = 0; i < frag_length; i += 4) {

			*seg_ptr++ = ((i+0) < frag_length) ? code_virtual_address[i+3] : 0;
@@ -106,23 +106,25 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, u 
	return rt_status;

}



//-----------------------------------------------------------------------------

// Procedure:    Check whether main code is download OK. If OK, turn on CPU

//

// Description:   CPU register locates in different page against general register.

//			    Switch to CPU register in the begin and switch back before return

//

//

// Arguments:   The pointer of the adapter

//

// Returns:

//        NDIS_STATUS_FAILURE - the following initialization process should be terminated

//        NDIS_STATUS_SUCCESS - if firmware initialization process success

//-----------------------------------------------------------------------------

/*

 * Procedure:    Check whether main code is download OK. If OK, turn on CPU

 *

 * Description:   CPU register locates in different page against general

 *		  register.  Switch to CPU register in the begin and switch

 *		  back before return

 *

 * Arguments:   The pointer of the adapter

 *

 * Returns:

 *	NDIS_STATUS_FAILURE - the following initialization process should be

 *			      terminated

 *	NDIS_STATUS_SUCCESS - if firmware initialization process success

 */

static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)

{

	bool rt_status = true;

	int		check_putcodeOK_time = 200000, check_bootOk_time = 200000;

	int check_putcodeOK_time = 200000;

	int check_bootOk_time = 200000;

	u32 CPU_status = 0;



	/* Check whether put code OK */
@@ -143,7 +145,8 @@ static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev) 


	/* Turn On CPU */

	CPU_status = read_nic_dword(dev, CPU_GEN);

	write_nic_byte(dev, CPU_GEN, (u8)((CPU_status|CPU_GEN_PWR_STB_CPU)&0xff));

	write_nic_byte(dev, CPU_GEN,

		       (u8)((CPU_status | CPU_GEN_PWR_STB_CPU) & 0xff));

	mdelay(1);



	/* Check whether CPU boot OK */
@@ -154,16 +157,15 @@ static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev) 
			break;

	} while (check_bootOk_time--);



	if(!(CPU_status&CPU_GEN_BOOT_RDY)) {

	if (!(CPU_status & CPU_GEN_BOOT_RDY))

		goto CPUCheckMainCodeOKAndTurnOnCPU_Fail;

	} else {

	else

		RT_TRACE(COMP_FIRMWARE, "Download Firmware: Boot ready!\n");

	}



	return rt_status;



CPUCheckMainCodeOKAndTurnOnCPU_Fail:

	RT_TRACE(COMP_ERR, "ERR in %s()\n", __FUNCTION__);

	RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);

	rt_status = FALSE;

	return rt_status;

}
@@ -192,7 +194,7 @@ static bool CPUcheck_firmware_ready(struct net_device *dev) 
	return rt_status;



CPUCheckFirmwareReady_Fail:

	RT_TRACE(COMP_ERR, "ERR in %s()\n", __FUNCTION__);

	RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);

	rt_status = false;

	return rt_status;
@@ -205,8 +207,8 @@ bool init_firmware(struct net_device *dev) 
	u32			file_length = 0;

	u8			*mapped_file = NULL;

	u32			init_step = 0;

	opt_rst_type_e	rst_opt = OPT_SYSTEM_RESET;

	firmware_init_step_e 	starting_state = FW_INIT_STEP0_BOOT;

	enum opt_rst_type	rst_opt = OPT_SYSTEM_RESET;

	enum firmware_init_step	starting_state = FW_INIT_STEP0_BOOT;



	rt_firmware		*pfirmware = priv->pFirmware;

	const struct firmware 	*fw_entry;
@@ -221,30 +223,27 @@ bool init_firmware(struct net_device *dev) 
		/* it is called by reset */

		rst_opt = OPT_SYSTEM_RESET;

		starting_state = FW_INIT_STEP0_BOOT;

		// TODO: system reset

		/* TODO: system reset */



	} else if (pfirmware->firmware_status == FW_STATUS_5_READY) {

		/* it is called by Initialize */

		rst_opt = OPT_FIRMWARE_RESET;

		starting_state = FW_INIT_STEP2_DATA;

	} else {

		 RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined firmware state\n");

		RT_TRACE(COMP_FIRMWARE,

			"PlatformInitFirmware: undefined firmware state\n");

	}



	/*

	 * Download boot, main, and data image for System reset.

	 * Download data image for firmware reseta

	 */

	priv->firmware_source = FW_SOURCE_IMG_FILE;

	for (init_step = starting_state; init_step <= FW_INIT_STEP2_DATA; init_step++) {

		/*

		 * Open Image file, and map file to contineous memory if open file success.

		 * or read image file from array. Default load from IMG file

		 */

		if (rst_opt == OPT_SYSTEM_RESET) {

			switch(priv->firmware_source) {

				case FW_SOURCE_IMG_FILE:

				{

			if (pfirmware->firmware_buf_size[init_step] == 0) {

				rc = request_firmware(&fw_entry, fw_name[init_step], &priv->pdev->dev);

				if (rc < 0) {
@@ -264,25 +263,14 @@ bool init_firmware(struct net_device *dev) 
				} else {

					memset(pfirmware->firmware_buf[init_step], 0, 128);

					memcpy(&pfirmware->firmware_buf[init_step][128], fw_entry->data, fw_entry->size);

							//mapped_file = pfirmware->firmware_buf[init_step];

					pfirmware->firmware_buf_size[init_step] = fw_entry->size+128;

							//file_length = fw_entry->size + 128;

				}

						//pfirmware->firmware_buf_size = file_length;



						if(rst_opt == OPT_SYSTEM_RESET) {

				if (rst_opt == OPT_SYSTEM_RESET)

					release_firmware(fw_entry);

			}

					}

			mapped_file = pfirmware->firmware_buf[init_step];

			file_length = pfirmware->firmware_buf_size[init_step];

					break;

				}

				default:

					break;

			}





		} else if (rst_opt == OPT_FIRMWARE_RESET) {

			/* we only need to download data.img here */

			mapped_file = pfirmware->firmware_buf[init_step];
@@ -291,24 +279,25 @@ bool init_firmware(struct net_device *dev) 


		/* Download image file */

		/* The firmware download process is just as following,

		 * 1. that is each packet will be segmented and inserted to the wait queue.

		 * 1. that is each packet will be segmented and inserted to the

		 *    wait queue.

		 * 2. each packet segment will be put in the skb_buff packet.

		 * 3. each skb_buff packet data content will already include the firmware info

		 *   and Tx descriptor info

		 * */

		 * 3. each skb_buff packet data content will already include

		 *    the firmware info and Tx descriptor info

		 */

		rt_status = fw_download_code(dev, mapped_file, file_length);

		if(rt_status != TRUE) {

		if (rt_status != TRUE)

			goto download_firmware_fail;

		}



		switch (init_step) {

		case FW_INIT_STEP0_BOOT:

			/* Download boot

			 * initialize command descriptor.

				 * will set polling bit when firmware code is also configured

			 * will set polling bit when firmware code is also

			 * configured

			 */

			pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE;

				//mdelay(1000);

			/* mdelay(1000); */

			/*

			 * To initialize IMEM, CPU move code  from 0x80000080,

			 * hence, we send 0x80 byte packet
@@ -316,13 +305,15 @@ bool init_firmware(struct net_device *dev) 
			break;



		case FW_INIT_STEP1_MAIN:

				/* Download firmware code. Wait until Boot Ready and Turn on CPU */

			/* Download firmware code.

			 * Wait until Boot Ready and Turn on CPU */

			pfirmware->firmware_status = FW_STATUS_2_MOVE_MAIN_CODE;



			/* Check Put Code OK and Turn On CPU */

			rt_status = CPUcheck_maincodeok_turnonCPU(dev);

			if (rt_status != TRUE) {

					RT_TRACE(COMP_FIRMWARE, "CPUcheck_maincodeok_turnonCPU fail!\n");

				RT_TRACE(COMP_FIRMWARE,

					"CPUcheck_maincodeok_turnonCPU fail!\n");

				goto download_firmware_fail;

			}
@@ -336,7 +327,9 @@ bool init_firmware(struct net_device *dev) 


			rt_status = CPUcheck_firmware_ready(dev);

			if (rt_status != TRUE) {

					RT_TRACE(COMP_FIRMWARE, "CPUcheck_firmware_ready fail(%d)!\n",rt_status);

				RT_TRACE(COMP_FIRMWARE,

					"CPUcheck_firmware_ready fail(%d)!\n",

					rt_status);

				goto download_firmware_fail;

			}
@@ -347,12 +340,10 @@ bool init_firmware(struct net_device *dev) 
	}



	RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n");

	//assert(pfirmware->firmware_status == FW_STATUS_5_READY, ("Firmware Download Fail\n"));



	return rt_status;



download_firmware_fail:

	RT_TRACE(COMP_ERR, "ERR in %s()\n", __FUNCTION__);

	RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);

	rt_status = FALSE;

	return rt_status;