![Mauro Carvalho Chehab](/assets/img/avatar_default.png)
Remove #ifse against older kernel versions; Remove codes marked with #if 0; Remove #if 1 Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
435 lines
13 KiB
C
435 lines
13 KiB
C
/**************************************************************************************************
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* Procedure: Init boot code/firmware code/data session
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*
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* Description: This routine will intialize firmware. If any error occurs during the initialization
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* process, the routine shall terminate immediately and return fail.
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* NIC driver should call NdisOpenFile only from MiniportInitialize.
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*
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* Arguments: The pointer of the adapter
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* Returns:
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* NDIS_STATUS_FAILURE - the following initialization process should be terminated
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* NDIS_STATUS_SUCCESS - if firmware initialization process success
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**************************************************************************************************/
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//#include "ieee80211.h"
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#include "r8192U.h"
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#include "r8192U_hw.h"
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#include "r819xU_firmware_img.h"
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#include "r819xU_firmware.h"
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#include <linux/firmware.h>
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void firmware_init_param(struct net_device *dev)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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rt_firmware *pfirmware = priv->pFirmware;
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pfirmware->cmdpacket_frag_thresold = GET_COMMAND_PACKET_FRAG_THRESHOLD(MAX_TRANSMIT_BUFFER_SIZE);
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}
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/*
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* segment the img and use the ptr and length to remember info on each segment
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*
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*/
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bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, u32 buffer_len)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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bool rt_status = true;
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u16 frag_threshold;
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u16 frag_length, frag_offset = 0;
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//u16 total_size;
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int i;
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rt_firmware *pfirmware = priv->pFirmware;
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struct sk_buff *skb;
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unsigned char *seg_ptr;
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cb_desc *tcb_desc;
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u8 bLastIniPkt;
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firmware_init_param(dev);
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//Fragmentation might be required
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frag_threshold = pfirmware->cmdpacket_frag_thresold;
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do {
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if((buffer_len - frag_offset) > frag_threshold) {
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frag_length = frag_threshold ;
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bLastIniPkt = 0;
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} else {
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frag_length = buffer_len - frag_offset;
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bLastIniPkt = 1;
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}
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/* Allocate skb buffer to contain firmware info and tx descriptor info
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* add 4 to avoid packet appending overflow.
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* */
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#ifdef RTL8192U
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skb = dev_alloc_skb(USB_HWDESC_HEADER_LEN + frag_length + 4);
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#else
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skb = dev_alloc_skb(frag_length + 4);
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#endif
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memcpy((unsigned char *)(skb->cb),&dev,sizeof(dev));
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tcb_desc = (cb_desc*)(skb->cb + MAX_DEV_ADDR_SIZE);
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tcb_desc->queue_index = TXCMD_QUEUE;
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tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT;
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tcb_desc->bLastIniPkt = bLastIniPkt;
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#ifdef RTL8192U
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skb_reserve(skb, USB_HWDESC_HEADER_LEN);
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#endif
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seg_ptr = skb->data;
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/*
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* Transform from little endian to big endian
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* and pending zero
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*/
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for(i=0 ; i < frag_length; i+=4) {
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*seg_ptr++ = ((i+0)<frag_length)?code_virtual_address[i+3]:0;
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*seg_ptr++ = ((i+1)<frag_length)?code_virtual_address[i+2]:0;
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*seg_ptr++ = ((i+2)<frag_length)?code_virtual_address[i+1]:0;
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*seg_ptr++ = ((i+3)<frag_length)?code_virtual_address[i+0]:0;
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}
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tcb_desc->txbuf_size= (u16)i;
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skb_put(skb, i);
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if(!priv->ieee80211->check_nic_enough_desc(dev,tcb_desc->queue_index)||
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(!skb_queue_empty(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index]))||\
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(priv->ieee80211->queue_stop) ) {
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RT_TRACE(COMP_FIRMWARE,"=====================================================> tx full!\n");
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skb_queue_tail(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index], skb);
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} else {
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priv->ieee80211->softmac_hard_start_xmit(skb,dev);
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}
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code_virtual_address += frag_length;
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frag_offset += frag_length;
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}while(frag_offset < buffer_len);
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return rt_status;
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}
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bool
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fwSendNullPacket(
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struct net_device *dev,
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u32 Length
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)
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{
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bool rtStatus = true;
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struct r8192_priv *priv = ieee80211_priv(dev);
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struct sk_buff *skb;
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cb_desc *tcb_desc;
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unsigned char *ptr_buf;
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bool bLastInitPacket = false;
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//PlatformAcquireSpinLock(Adapter, RT_TX_SPINLOCK);
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//Get TCB and local buffer from common pool. (It is shared by CmdQ, MgntQ, and USB coalesce DataQ)
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skb = dev_alloc_skb(Length+ 4);
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memcpy((unsigned char *)(skb->cb),&dev,sizeof(dev));
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tcb_desc = (cb_desc*)(skb->cb + MAX_DEV_ADDR_SIZE);
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tcb_desc->queue_index = TXCMD_QUEUE;
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tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT;
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tcb_desc->bLastIniPkt = bLastInitPacket;
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ptr_buf = skb_put(skb, Length);
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memset(ptr_buf,0,Length);
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tcb_desc->txbuf_size= (u16)Length;
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if(!priv->ieee80211->check_nic_enough_desc(dev,tcb_desc->queue_index)||
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(!skb_queue_empty(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index]))||\
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(priv->ieee80211->queue_stop) ) {
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RT_TRACE(COMP_FIRMWARE,"===================NULL packet==================================> tx full!\n");
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skb_queue_tail(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index], skb);
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} else {
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priv->ieee80211->softmac_hard_start_xmit(skb,dev);
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}
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//PlatformReleaseSpinLock(Adapter, RT_TX_SPINLOCK);
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return rtStatus;
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}
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//-----------------------------------------------------------------------------
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// Procedure: Check whether main code is download OK. If OK, turn on CPU
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//
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// Description: CPU register locates in different page against general register.
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// Switch to CPU register in the begin and switch back before return
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//
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//
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// Arguments: The pointer of the adapter
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//
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// Returns:
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// NDIS_STATUS_FAILURE - the following initialization process should be terminated
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// NDIS_STATUS_SUCCESS - if firmware initialization process success
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//-----------------------------------------------------------------------------
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bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)
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{
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bool rt_status = true;
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int check_putcodeOK_time = 200000, check_bootOk_time = 200000;
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u32 CPU_status = 0;
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/* Check whether put code OK */
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do {
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CPU_status = read_nic_dword(dev, CPU_GEN);
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if(CPU_status&CPU_GEN_PUT_CODE_OK)
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break;
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}while(check_putcodeOK_time--);
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if(!(CPU_status&CPU_GEN_PUT_CODE_OK)) {
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RT_TRACE(COMP_ERR, "Download Firmware: Put code fail!\n");
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goto CPUCheckMainCodeOKAndTurnOnCPU_Fail;
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} else {
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RT_TRACE(COMP_FIRMWARE, "Download Firmware: Put code ok!\n");
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}
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/* Turn On CPU */
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CPU_status = read_nic_dword(dev, CPU_GEN);
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write_nic_byte(dev, CPU_GEN, (u8)((CPU_status|CPU_GEN_PWR_STB_CPU)&0xff));
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mdelay(1000);
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/* Check whether CPU boot OK */
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do {
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CPU_status = read_nic_dword(dev, CPU_GEN);
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if(CPU_status&CPU_GEN_BOOT_RDY)
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break;
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}while(check_bootOk_time--);
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if(!(CPU_status&CPU_GEN_BOOT_RDY)) {
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goto CPUCheckMainCodeOKAndTurnOnCPU_Fail;
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} else {
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RT_TRACE(COMP_FIRMWARE, "Download Firmware: Boot ready!\n");
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}
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return rt_status;
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CPUCheckMainCodeOKAndTurnOnCPU_Fail:
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RT_TRACE(COMP_ERR, "ERR in %s()\n", __FUNCTION__);
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rt_status = FALSE;
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return rt_status;
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}
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bool CPUcheck_firmware_ready(struct net_device *dev)
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{
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bool rt_status = true;
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int check_time = 200000;
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u32 CPU_status = 0;
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/* Check Firmware Ready */
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do {
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CPU_status = read_nic_dword(dev, CPU_GEN);
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if(CPU_status&CPU_GEN_FIRM_RDY)
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break;
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}while(check_time--);
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if(!(CPU_status&CPU_GEN_FIRM_RDY))
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goto CPUCheckFirmwareReady_Fail;
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else
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RT_TRACE(COMP_FIRMWARE, "Download Firmware: Firmware ready!\n");
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return rt_status;
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CPUCheckFirmwareReady_Fail:
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RT_TRACE(COMP_ERR, "ERR in %s()\n", __FUNCTION__);
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rt_status = false;
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return rt_status;
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}
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bool init_firmware(struct net_device *dev)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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bool rt_status = TRUE;
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u8 *firmware_img_buf[3] = { &rtl8190_fwboot_array[0],
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&rtl8190_fwmain_array[0],
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&rtl8190_fwdata_array[0]};
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u32 firmware_img_len[3] = { sizeof(rtl8190_fwboot_array),
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sizeof(rtl8190_fwmain_array),
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sizeof(rtl8190_fwdata_array)};
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u32 file_length = 0;
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u8 *mapped_file = NULL;
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u32 init_step = 0;
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opt_rst_type_e rst_opt = OPT_SYSTEM_RESET;
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firmware_init_step_e starting_state = FW_INIT_STEP0_BOOT;
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rt_firmware *pfirmware = priv->pFirmware;
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const struct firmware *fw_entry;
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const char *fw_name[3] = { "RTL8192U/boot.img",
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"RTL8192U/main.img",
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"RTL8192U/data.img"};
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int rc;
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RT_TRACE(COMP_FIRMWARE, " PlatformInitFirmware()==>\n");
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if (pfirmware->firmware_status == FW_STATUS_0_INIT ) {
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/* it is called by reset */
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rst_opt = OPT_SYSTEM_RESET;
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starting_state = FW_INIT_STEP0_BOOT;
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// TODO: system reset
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}else if(pfirmware->firmware_status == FW_STATUS_5_READY) {
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/* it is called by Initialize */
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rst_opt = OPT_FIRMWARE_RESET;
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starting_state = FW_INIT_STEP2_DATA;
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}else {
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RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined firmware state\n");
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}
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/*
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* Download boot, main, and data image for System reset.
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* Download data image for firmware reseta
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*/
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priv->firmware_source = FW_SOURCE_IMG_FILE;
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for(init_step = starting_state; init_step <= FW_INIT_STEP2_DATA; init_step++) {
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/*
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* Open Image file, and map file to contineous memory if open file success.
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* or read image file from array. Default load from IMG file
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*/
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if(rst_opt == OPT_SYSTEM_RESET) {
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switch(priv->firmware_source) {
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case FW_SOURCE_IMG_FILE:
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rc = request_firmware(&fw_entry, fw_name[init_step],&priv->udev->dev);
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if(rc < 0 ) {
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RT_TRACE(COMP_ERR, "request firmware fail!\n");
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goto download_firmware_fail;
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}
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if(fw_entry->size > sizeof(pfirmware->firmware_buf)) {
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RT_TRACE(COMP_ERR, "img file size exceed the container buffer fail!\n");
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goto download_firmware_fail;
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}
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if(init_step != FW_INIT_STEP1_MAIN) {
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memcpy(pfirmware->firmware_buf,fw_entry->data,fw_entry->size);
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mapped_file = pfirmware->firmware_buf;
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file_length = fw_entry->size;
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} else {
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#ifdef RTL8190P
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memcpy(pfirmware->firmware_buf,fw_entry->data,fw_entry->size);
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mapped_file = pfirmware->firmware_buf;
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file_length = fw_entry->size;
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#else
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memset(pfirmware->firmware_buf,0,128);
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memcpy(&pfirmware->firmware_buf[128],fw_entry->data,fw_entry->size);
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mapped_file = pfirmware->firmware_buf;
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file_length = fw_entry->size + 128;
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#endif
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}
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pfirmware->firmware_buf_size = file_length;
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break;
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case FW_SOURCE_HEADER_FILE:
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mapped_file = firmware_img_buf[init_step];
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file_length = firmware_img_len[init_step];
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if(init_step == FW_INIT_STEP2_DATA) {
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memcpy(pfirmware->firmware_buf, mapped_file, file_length);
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pfirmware->firmware_buf_size = file_length;
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}
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break;
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default:
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break;
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}
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}else if(rst_opt == OPT_FIRMWARE_RESET ) {
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/* we only need to download data.img here */
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mapped_file = pfirmware->firmware_buf;
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file_length = pfirmware->firmware_buf_size;
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}
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/* Download image file */
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/* The firmware download process is just as following,
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* 1. that is each packet will be segmented and inserted to the wait queue.
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* 2. each packet segment will be put in the skb_buff packet.
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* 3. each skb_buff packet data content will already include the firmware info
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* and Tx descriptor info
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* */
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rt_status = fw_download_code(dev,mapped_file,file_length);
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if(rst_opt == OPT_SYSTEM_RESET) {
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release_firmware(fw_entry);
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}
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if(rt_status != TRUE) {
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goto download_firmware_fail;
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}
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switch(init_step) {
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case FW_INIT_STEP0_BOOT:
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/* Download boot
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* initialize command descriptor.
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* will set polling bit when firmware code is also configured
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*/
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pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE;
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#ifdef RTL8190P
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// To initialize IMEM, CPU move code from 0x80000080, hence, we send 0x80 byte packet
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rt_status = fwSendNullPacket(dev, RTL8190_CPU_START_OFFSET);
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if(rt_status != true)
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{
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RT_TRACE(COMP_INIT, "fwSendNullPacket() fail ! \n");
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goto download_firmware_fail;
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}
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#endif
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//mdelay(1000);
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/*
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* To initialize IMEM, CPU move code from 0x80000080,
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* hence, we send 0x80 byte packet
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*/
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break;
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case FW_INIT_STEP1_MAIN:
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/* Download firmware code. Wait until Boot Ready and Turn on CPU */
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pfirmware->firmware_status = FW_STATUS_2_MOVE_MAIN_CODE;
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/* Check Put Code OK and Turn On CPU */
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rt_status = CPUcheck_maincodeok_turnonCPU(dev);
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if(rt_status != TRUE) {
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RT_TRACE(COMP_ERR, "CPUcheck_maincodeok_turnonCPU fail!\n");
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goto download_firmware_fail;
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}
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pfirmware->firmware_status = FW_STATUS_3_TURNON_CPU;
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break;
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case FW_INIT_STEP2_DATA:
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/* download initial data code */
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pfirmware->firmware_status = FW_STATUS_4_MOVE_DATA_CODE;
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mdelay(1);
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rt_status = CPUcheck_firmware_ready(dev);
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if(rt_status != TRUE) {
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RT_TRACE(COMP_ERR, "CPUcheck_firmware_ready fail(%d)!\n",rt_status);
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goto download_firmware_fail;
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}
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/* wait until data code is initialized ready.*/
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pfirmware->firmware_status = FW_STATUS_5_READY;
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break;
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}
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}
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RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n");
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//assert(pfirmware->firmware_status == FW_STATUS_5_READY, ("Firmware Download Fail\n"));
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return rt_status;
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download_firmware_fail:
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RT_TRACE(COMP_ERR, "ERR in %s()\n", __FUNCTION__);
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rt_status = FALSE;
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return rt_status;
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}
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