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// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
* usb_halinit.c
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
* Linux device driver for RTL8192SU
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#define _HCI_HAL_INIT_C_
#include "osdep_service.h"
#include "drv_types.h"
#include "usb_ops.h"
#include "usb_osintf.h"
u8 r8712_usb_hal_bus_init(struct _adapter *adapter)
{
u8 val8 = 0;
u8 ret = _SUCCESS;
int PollingCnt = 20;
struct registry_priv *registrypriv = &adapter->registrypriv;
if (registrypriv->chip_version == RTL8712_FPGA) {
val8 = 0x01;
/* switch to 80M clock */
r8712_write8(adapter, SYS_CLKR, val8);
val8 = r8712_read8(adapter, SPS1_CTRL);
val8 = val8 | 0x01;
/* enable VSPS12 LDO Macro block */
r8712_write8(adapter, SPS1_CTRL, val8);
val8 = r8712_read8(adapter, AFE_MISC);
val8 = val8 | 0x01;
/* Enable AFE Macro Block's Bandgap */
r8712_write8(adapter, AFE_MISC, val8);
val8 = r8712_read8(adapter, LDOA15_CTRL);
val8 = val8 | 0x01;
/* enable LDOA15 block */
r8712_write8(adapter, LDOA15_CTRL, val8);
val8 = r8712_read8(adapter, SPS1_CTRL);
val8 = val8 | 0x02;
/* Enable VSPS12_SW Macro Block */
r8712_write8(adapter, SPS1_CTRL, val8);
val8 = r8712_read8(adapter, AFE_MISC);
val8 = val8 | 0x02;
/* Enable AFE Macro Block's Mbias */
r8712_write8(adapter, AFE_MISC, val8);
val8 = r8712_read8(adapter, SYS_ISO_CTRL + 1);
val8 = val8 | 0x08;
/* isolate PCIe Analog 1.2V to PCIe 3.3V and PCIE Digital */
r8712_write8(adapter, SYS_ISO_CTRL + 1, val8);
val8 = r8712_read8(adapter, SYS_ISO_CTRL + 1);
val8 = val8 & 0xEF;
/* attach AFE PLL to MACTOP/BB/PCIe Digital */
r8712_write8(adapter, SYS_ISO_CTRL + 1, val8);
val8 = r8712_read8(adapter, AFE_XTAL_CTRL + 1);
val8 = val8 & 0xFB;
/* enable AFE clock */
r8712_write8(adapter, AFE_XTAL_CTRL + 1, val8);
val8 = r8712_read8(adapter, AFE_PLL_CTRL);
val8 = val8 | 0x01;
/* Enable AFE PLL Macro Block */
r8712_write8(adapter, AFE_PLL_CTRL, val8);
val8 = 0xEE;
/* release isolation AFE PLL & MD */
r8712_write8(adapter, SYS_ISO_CTRL, val8);
val8 = r8712_read8(adapter, SYS_CLKR + 1);
val8 = val8 | 0x08;
/* enable MAC clock */
r8712_write8(adapter, SYS_CLKR + 1, val8);
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
val8 = val8 | 0x08;
/* enable Core digital and enable IOREG R/W */
r8712_write8(adapter, SYS_FUNC_EN + 1, val8);
val8 = val8 | 0x80;
/* enable REG_EN */
r8712_write8(adapter, SYS_FUNC_EN + 1, val8);
val8 = r8712_read8(adapter, SYS_CLKR + 1);
val8 = (val8 | 0x80) & 0xBF;
/* switch the control path */
r8712_write8(adapter, SYS_CLKR + 1, val8);
val8 = 0xFC;
r8712_write8(adapter, CR, val8);
val8 = 0x37;
r8712_write8(adapter, CR + 1, val8);
/* reduce EndPoint & init it */
r8712_write8(adapter, 0x102500ab, r8712_read8(adapter,
0x102500ab) | BIT(6) | BIT(7));
/* consideration of power consumption - init */
r8712_write8(adapter, 0x10250008, r8712_read8(adapter,
0x10250008) & 0xfffffffb);
} else if (registrypriv->chip_version == RTL8712_1stCUT) {
/* Initialization for power on sequence, */
r8712_write8(adapter, SPS0_CTRL + 1, 0x53);
r8712_write8(adapter, SPS0_CTRL, 0x57);
/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
* Block's Mbias
*/
val8 = r8712_read8(adapter, AFE_MISC);
r8712_write8(adapter, AFE_MISC, (val8 | AFE_MISC_BGEN |
AFE_MISC_MBEN));
/* Enable LDOA15 block */
val8 = r8712_read8(adapter, LDOA15_CTRL);
r8712_write8(adapter, LDOA15_CTRL, (val8 | LDA15_EN));
val8 = r8712_read8(adapter, SPS1_CTRL);
r8712_write8(adapter, SPS1_CTRL, (val8 | SPS1_LDEN));
msleep(20);
/* Enable Switch Regulator Block */
val8 = r8712_read8(adapter, SPS1_CTRL);
r8712_write8(adapter, SPS1_CTRL, (val8 | SPS1_SWEN));
r8712_write32(adapter, SPS1_CTRL, 0x00a7b267);
val8 = r8712_read8(adapter, SYS_ISO_CTRL + 1);
r8712_write8(adapter, SYS_ISO_CTRL + 1, (val8 | 0x08));
/* Engineer Packet CP test Enable */
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
r8712_write8(adapter, SYS_FUNC_EN + 1, (val8 | 0x20));
val8 = r8712_read8(adapter, SYS_ISO_CTRL + 1);
r8712_write8(adapter, SYS_ISO_CTRL + 1, (val8 & 0x6F));
/* Enable AFE clock */
val8 = r8712_read8(adapter, AFE_XTAL_CTRL + 1);
r8712_write8(adapter, AFE_XTAL_CTRL + 1, (val8 & 0xfb));
/* Enable AFE PLL Macro Block */
val8 = r8712_read8(adapter, AFE_PLL_CTRL);
r8712_write8(adapter, AFE_PLL_CTRL, (val8 | 0x11));
/* Attach AFE PLL to MACTOP/BB/PCIe Digital */
val8 = r8712_read8(adapter, SYS_ISO_CTRL);
r8712_write8(adapter, SYS_ISO_CTRL, (val8 & 0xEE));
/* Switch to 40M clock */
val8 = r8712_read8(adapter, SYS_CLKR);
r8712_write8(adapter, SYS_CLKR, val8 & (~SYS_CLKSEL));
/* SSC Disable */
val8 = r8712_read8(adapter, SYS_CLKR);
/* Enable MAC clock */
val8 = r8712_read8(adapter, SYS_CLKR + 1);
r8712_write8(adapter, SYS_CLKR + 1, (val8 | 0x18));
/* Revised POS, */
r8712_write8(adapter, PMC_FSM, 0x02);
/* Enable Core digital and enable IOREG R/W */
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
r8712_write8(adapter, SYS_FUNC_EN + 1, (val8 | 0x08));
/* Enable REG_EN */
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
r8712_write8(adapter, SYS_FUNC_EN + 1, (val8 | 0x80));
/* Switch the control path to FW */
val8 = r8712_read8(adapter, SYS_CLKR + 1);
r8712_write8(adapter, SYS_CLKR + 1, (val8 | 0x80) & 0xBF);
r8712_write8(adapter, CR, 0xFC);
r8712_write8(adapter, CR + 1, 0x37);
/* Fix the RX FIFO issue(usb error), */
val8 = r8712_read8(adapter, 0x1025FE5c);
r8712_write8(adapter, 0x1025FE5c, (val8 | BIT(7)));
val8 = r8712_read8(adapter, 0x102500ab);
r8712_write8(adapter, 0x102500ab, (val8 | BIT(6) | BIT(7)));
/* For power save, used this in the bit file after 970621 */
val8 = r8712_read8(adapter, SYS_CLKR);
r8712_write8(adapter, SYS_CLKR, val8 & (~CPU_CLKSEL));
} else if (registrypriv->chip_version == RTL8712_2ndCUT ||
registrypriv->chip_version == RTL8712_3rdCUT) {
/* Initialization for power on sequence,
* E-Fuse leakage prevention sequence
*/
r8712_write8(adapter, 0x37, 0xb0);
msleep(20);
r8712_write8(adapter, 0x37, 0x30);
/* Set control path switch to HW control and reset Digital Core,
* CPU Core and MAC I/O to solve FW download fail when system
* from resume sate.
*/
val8 = r8712_read8(adapter, SYS_CLKR + 1);
if (val8 & 0x80) {
val8 &= 0x3f;
r8712_write8(adapter, SYS_CLKR + 1, val8);
}
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
val8 &= 0x73;
r8712_write8(adapter, SYS_FUNC_EN + 1, val8);
msleep(20);
/* Revised POS, */
/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
* Block's Mbias
*/
r8712_write8(adapter, SPS0_CTRL + 1, 0x53);
r8712_write8(adapter, SPS0_CTRL, 0x57);
val8 = r8712_read8(adapter, AFE_MISC);
/*Bandgap*/
r8712_write8(adapter, AFE_MISC, (val8 | AFE_MISC_BGEN));
r8712_write8(adapter, AFE_MISC, (val8 | AFE_MISC_BGEN |
AFE_MISC_MBEN | AFE_MISC_I32_EN));
/* Enable PLL Power (LDOA15V) */
val8 = r8712_read8(adapter, LDOA15_CTRL);
r8712_write8(adapter, LDOA15_CTRL, (val8 | LDA15_EN));
/* Enable LDOV12D block */
val8 = r8712_read8(adapter, LDOV12D_CTRL);
r8712_write8(adapter, LDOV12D_CTRL, (val8 | LDV12_EN));
val8 = r8712_read8(adapter, SYS_ISO_CTRL + 1);
r8712_write8(adapter, SYS_ISO_CTRL + 1, (val8 | 0x08));
/* Engineer Packet CP test Enable */
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
r8712_write8(adapter, SYS_FUNC_EN + 1, (val8 | 0x20));
/* Support 64k IMEM */
val8 = r8712_read8(adapter, SYS_ISO_CTRL + 1);
r8712_write8(adapter, SYS_ISO_CTRL + 1, (val8 & 0x68));
/* Enable AFE clock */
val8 = r8712_read8(adapter, AFE_XTAL_CTRL + 1);
r8712_write8(adapter, AFE_XTAL_CTRL + 1, (val8 & 0xfb));
/* Enable AFE PLL Macro Block */
val8 = r8712_read8(adapter, AFE_PLL_CTRL);
r8712_write8(adapter, AFE_PLL_CTRL, (val8 | 0x11));
/* Some sample will download fw failure. The clock will be
* stable with 500 us delay after reset the PLL
* TODO: When usleep is added to kernel, change next 3
* udelay(500) to usleep(500)
*/
udelay(500);
r8712_write8(adapter, AFE_PLL_CTRL, (val8 | 0x51));
udelay(500);
r8712_write8(adapter, AFE_PLL_CTRL, (val8 | 0x11));
udelay(500);
/* Attach AFE PLL to MACTOP/BB/PCIe Digital */
val8 = r8712_read8(adapter, SYS_ISO_CTRL);
r8712_write8(adapter, SYS_ISO_CTRL, (val8 & 0xEE));
/* Switch to 40M clock */
r8712_write8(adapter, SYS_CLKR, 0x00);
/* CPU Clock and 80M Clock SSC Disable to overcome FW download
* fail timing issue.
*/
val8 = r8712_read8(adapter, SYS_CLKR);
r8712_write8(adapter, SYS_CLKR, (val8 | 0xa0));
/* Enable MAC clock */
val8 = r8712_read8(adapter, SYS_CLKR + 1);
r8712_write8(adapter, SYS_CLKR + 1, (val8 | 0x18));
/* Revised POS, */
r8712_write8(adapter, PMC_FSM, 0x02);
/* Enable Core digital and enable IOREG R/W */
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
r8712_write8(adapter, SYS_FUNC_EN + 1, (val8 | 0x08));
/* Enable REG_EN */
val8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
r8712_write8(adapter, SYS_FUNC_EN + 1, (val8 | 0x80));
/* Switch the control path to FW */
val8 = r8712_read8(adapter, SYS_CLKR + 1);
r8712_write8(adapter, SYS_CLKR + 1, (val8 | 0x80) & 0xBF);
r8712_write8(adapter, CR, 0xFC);
r8712_write8(adapter, CR + 1, 0x37);
/* Fix the RX FIFO issue(usb error), 970410 */
val8 = r8712_read8(adapter, 0x1025FE5c);
r8712_write8(adapter, 0x1025FE5c, (val8 | BIT(7)));
/* For power save, used this in the bit file after 970621 */
val8 = r8712_read8(adapter, SYS_CLKR);
r8712_write8(adapter, SYS_CLKR, val8 & (~CPU_CLKSEL));
/* Revised for 8051 ROM code wrong operation. */
r8712_write8(adapter, 0x1025fe1c, 0x80);
/* To make sure that TxDMA can ready to download FW.
* We should reset TxDMA if IMEM RPT was not ready.
*/
do {
val8 = r8712_read8(adapter, TCR);
if ((val8 & _TXDMA_INIT_VALUE) == _TXDMA_INIT_VALUE)
break;
udelay(5); /* PlatformStallExecution(5); */
} while (PollingCnt--); /* Delay 1ms */
if (PollingCnt <= 0) {
val8 = r8712_read8(adapter, CR);
r8712_write8(adapter, CR, val8 & (~_TXDMA_EN));
udelay(2); /* PlatformStallExecution(2); */
/* Reset TxDMA */
r8712_write8(adapter, CR, val8 | _TXDMA_EN);
}
} else {
ret = _FAIL;
}
return ret;
}
unsigned int r8712_usb_inirp_init(struct _adapter *adapter)
{
u8 i;
struct recv_buf *recvbuf;
struct intf_hdl *intfhdl = &adapter->pio_queue->intf;
struct recv_priv *recvpriv = &(adapter->recvpriv);
recvpriv->ff_hwaddr = RTL8712_DMA_RX0FF; /* mapping rx fifo address */
/* issue Rx irp to receive data */
recvbuf = (struct recv_buf *)recvpriv->precv_buf;
for (i = 0; i < NR_RECVBUFF; i++) {
if (r8712_usb_read_port(intfhdl, recvpriv->ff_hwaddr, 0,
(unsigned char *)recvbuf) == false)
return _FAIL;
recvbuf++;
recvpriv->free_recv_buf_queue_cnt--;
}
return _SUCCESS;
}
unsigned int r8712_usb_inirp_deinit(struct _adapter *adapter)
{
r8712_usb_read_port_cancel(adapter);
return _SUCCESS;
}
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