diff options
Diffstat (limited to 'mwl_fwdl.c')
| -rw-r--r-- | mwl_fwdl.c | 63 |
1 files changed, 37 insertions, 26 deletions
@@ -64,18 +64,21 @@ int mwl_fwdl_download_firmware(struct ieee80211_hw *hw) mwl_fwcmd_reset(hw); - /* FW before jumping to boot rom, it will enable PCIe transaction retry, wait for boot code to stop it. - */ + /* FW before jumping to boot rom, it will enable PCIe transaction retry, + * wait for boot code to stop it. + */ WL_MSEC_SLEEP(FW_CHECK_MSECS); - writel(MACREG_A2HRIC_BIT_MASK, priv->iobase1 + MACREG_REG_A2H_INTERRUPT_CLEAR_SEL); + writel(MACREG_A2HRIC_BIT_MASK, + priv->iobase1 + MACREG_REG_A2H_INTERRUPT_CLEAR_SEL); writel(0x00, priv->iobase1 + MACREG_REG_A2H_INTERRUPT_CAUSE); writel(0x00, priv->iobase1 + MACREG_REG_A2H_INTERRUPT_MASK); - writel(MACREG_A2HRIC_BIT_MASK, priv->iobase1 + MACREG_REG_A2H_INTERRUPT_STATUS_MASK); + writel(MACREG_A2HRIC_BIT_MASK, + priv->iobase1 + MACREG_REG_A2H_INTERRUPT_STATUS_MASK); /* this routine interacts with SC2 bootrom to download firmware binary - * to the device. After DMA'd to SC2, the firmware could be deflated to reside - * on its respective blocks such as ITCM, DTCM, SQRAM, + * to the device. After DMA'd to SC2, the firmware could be deflated to + * reside on its respective blocks such as ITCM, DTCM, SQRAM, * (or even DDR, AFTER DDR is init'd before fw download */ WLDBG_PRINT("fw download start 88"); @@ -86,7 +89,8 @@ int mwl_fwdl_download_firmware(struct ieee80211_hw *hw) /* make sure SCRATCH2 C40 is clear, in case we are too quick */ - while (readl(priv->iobase1 + 0xc40) == 0); + while (readl(priv->iobase1 + 0xc40) == 0) + ; while (size_fw_downloaded < fw->size) { len = readl(priv->iobase1 + 0xc40); @@ -94,21 +98,24 @@ int mwl_fwdl_download_firmware(struct ieee80211_hw *hw) if (!len) break; - /* this copies the next chunk of fw binary to be delivered - */ - memcpy((char *)&priv->pcmd_buf[0], (fw->data + size_fw_downloaded), len); + /* this copies the next chunk of fw binary to be delivered */ + memcpy((char *)&priv->pcmd_buf[0], + (fw->data + size_fw_downloaded), len); /* this function writes pdata to c10, then write 2 to c18 */ mwl_fwdl_trig_pcicmd_bootcode(priv); - curr_iteration = FW_MAX_NUM_CHECKS; /* this is arbitrary per your platform; we use 0xffff */ + /* this is arbitrary per your platform; we use 0xffff */ + curr_iteration = FW_MAX_NUM_CHECKS; - /* NOTE: the following back to back checks on C1C is time sensitive, hence - * may need to be tweaked dependent on host processor. Time for SC2 to go from - * the write of event 2 to C1C == 2 is ~1300 nSec. Hence the checkings on host - * has to consider how efficient your code can be to meet this timing, or you - * can alternatively tweak this routines to fit your platform + /* NOTE: the following back to back checks on C1C is time + * sensitive, hence may need to be tweaked dependent on host + * processor. Time for SC2 to go from the write of event 2 to + * C1C == 2 is ~1300 nSec. Hence the checkings on host has to + * consider how efficient your code can be to meet this timing, + * or you can alternatively tweak this routines to fit your + * platform */ do { int_code = readl(priv->iobase1 + 0xc1c); @@ -119,16 +126,18 @@ int mwl_fwdl_download_firmware(struct ieee80211_hw *hw) do { int_code = readl(priv->iobase1 + 0xc1c); - if ((int_code & MACREG_H2ARIC_BIT_DOOR_BELL) != MACREG_H2ARIC_BIT_DOOR_BELL) + if ((int_code & MACREG_H2ARIC_BIT_DOOR_BELL) != + MACREG_H2ARIC_BIT_DOOR_BELL) break; curr_iteration--; } while (curr_iteration); if (curr_iteration == 0) { - /* This limited loop check allows you to exit gracefully without locking up - * your entire system just because fw download failed + /* This limited loop check allows you to exit gracefully + * without locking up your entire system just because fw + * download failed */ - WLDBG_PRINT("Exhausted curr_iteration during fw download"); + WLDBG_PRINT("Exhausted curr_iteration for fw download"); goto err_download; } @@ -139,9 +148,10 @@ int mwl_fwdl_download_firmware(struct ieee80211_hw *hw) (int)fw->size, size_fw_downloaded, curr_iteration); /* Now firware is downloaded successfully, so this part is to check - * whether fw can properly execute to an extent that write back signature - * to indicate its readiness to the host. NOTE: if your downloaded fw crashes, - * this signature checking will fail. This part is similar as SC1 + * whether fw can properly execute to an extent that write back + * signature to indicate its readiness to the host. NOTE: if your + * downloaded fw crashes, this signature checking will fail. This + * part is similar as SC1 */ writew(0x00, &priv->pcmd_buf[1]); mwl_fwdl_trig_pcicmd(priv); @@ -153,14 +163,15 @@ int mwl_fwdl_download_firmware(struct ieee80211_hw *hw) int_code = readl(priv->iobase1 + MACREG_REG_INT_CODE); if (!(curr_iteration % 0xff)) WLDBG_PRINT("%x;", int_code); - } while ((curr_iteration) && (int_code != HOSTCMD_SOFTAP_FWRDY_SIGNATURE)); + } while ((curr_iteration) && + (int_code != HOSTCMD_SOFTAP_FWRDY_SIGNATURE)); if (curr_iteration == 0) { - WLDBG_PRINT("Exhausted curr_iteration waiting for fw signature; firmware seems failed to operate"); + WLDBG_PRINT("Exhausted curr_iteration for fw signature"); goto err_download; } - WLDBG_PRINT("complete"); + WLDBG_PRINT("complete"); writel(0x00, priv->iobase1 + MACREG_REG_INT_CODE); WLDBG_EXIT(DBG_LEVEL_1); |