[mirror_ubuntu-zesty-kernel.git] / drivers / staging / rtl8712 / usb_halinit.c

/******************************************************************************
 * usb_halinit.c
 *
 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
 * Linux device driver for RTL8192SU
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * 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 *padapter)
{
	u8 val8 = 0;
	u8 ret = _SUCCESS;
	int PollingCnt = 20;
	struct registry_priv *pregistrypriv = &padapter->registrypriv;

	if (pregistrypriv->chip_version == RTL8712_FPGA) {
		val8 = 0x01;
		/* switch to 80M clock */
		r8712_write8(padapter, SYS_CLKR, val8);
		val8 = r8712_read8(padapter, SPS1_CTRL);
		val8 = val8 | 0x01;
		/* enable VSPS12 LDO Macro block */
		r8712_write8(padapter, SPS1_CTRL, val8);
		val8 = r8712_read8(padapter, AFE_MISC);
		val8 = val8 | 0x01;
		/* Enable AFE Macro Block's Bandgap */
		r8712_write8(padapter, AFE_MISC, val8);
		val8 = r8712_read8(padapter, LDOA15_CTRL);
		val8 = val8 | 0x01;
		/* enable LDOA15 block */
		r8712_write8(padapter, LDOA15_CTRL, val8);
		val8 = r8712_read8(padapter, SPS1_CTRL);
		val8 = val8 | 0x02;
		/* Enable VSPS12_SW Macro Block */
		r8712_write8(padapter, SPS1_CTRL, val8);
		val8 = r8712_read8(padapter, AFE_MISC);
		val8 = val8 | 0x02;
		/* Enable AFE Macro Block's Mbias */
		r8712_write8(padapter, AFE_MISC, val8);
		val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
		val8 = val8 | 0x08;
		/* isolate PCIe Analog 1.2V to PCIe 3.3V and PCIE Digital */
		r8712_write8(padapter, SYS_ISO_CTRL + 1, val8);
		val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
		val8 = val8 & 0xEF;
		/* attatch AFE PLL to MACTOP/BB/PCIe Digital */
		r8712_write8(padapter, SYS_ISO_CTRL + 1, val8);
		val8 = r8712_read8(padapter, AFE_XTAL_CTRL + 1);
		val8 = val8 & 0xFB;
		/* enable AFE clock */
		r8712_write8(padapter, AFE_XTAL_CTRL + 1, val8);
		val8 = r8712_read8(padapter, AFE_PLL_CTRL);
		val8 = val8 | 0x01;
		/* Enable AFE PLL Macro Block */
		r8712_write8(padapter, AFE_PLL_CTRL, val8);
		val8 = 0xEE;
		/* release isolation AFE PLL & MD */
		r8712_write8(padapter, SYS_ISO_CTRL, val8);
		val8 = r8712_read8(padapter, SYS_CLKR + 1);
		val8 = val8 | 0x08;
		/* enable MAC clock */
		r8712_write8(padapter, SYS_CLKR + 1, val8);
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		val8 = val8 | 0x08;
		/* enable Core digital and enable IOREG R/W */
		r8712_write8(padapter, SYS_FUNC_EN + 1, val8);
		val8 = val8 | 0x80;
		/* enable REG_EN */
		r8712_write8(padapter, SYS_FUNC_EN + 1, val8);
		val8 = r8712_read8(padapter, SYS_CLKR + 1);
		val8 = (val8 | 0x80) & 0xBF;
		/* switch the control path */
		r8712_write8(padapter, SYS_CLKR + 1, val8);
		val8 = 0xFC;
		r8712_write8(padapter, CR, val8);
		val8 = 0x37;
		r8712_write8(padapter, CR + 1, val8);
		/* reduce EndPoint & init it */
		r8712_write8(padapter, 0x102500ab, r8712_read8(padapter,
			     0x102500ab) | BIT(6) | BIT(7));
		/* consideration of power consumption - init */
		r8712_write8(padapter, 0x10250008, r8712_read8(padapter,
			     0x10250008) & 0xfffffffb);
	} else if (pregistrypriv->chip_version == RTL8712_1stCUT) {
		/* Initialization for power on sequence, */
		r8712_write8(padapter, SPS0_CTRL + 1, 0x53);
		r8712_write8(padapter, SPS0_CTRL, 0x57);
		/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
		 * Block's Mbias
		 */
		val8 = r8712_read8(padapter, AFE_MISC);
		r8712_write8(padapter, AFE_MISC, (val8 | AFE_MISC_BGEN |
			     AFE_MISC_MBEN));
		/* Enable LDOA15 block */
		val8 = r8712_read8(padapter, LDOA15_CTRL);
		r8712_write8(padapter, LDOA15_CTRL, (val8 | LDA15_EN));
		val8 = r8712_read8(padapter, SPS1_CTRL);
		r8712_write8(padapter, SPS1_CTRL, (val8 | SPS1_LDEN));
		msleep(20);
		/* Enable Switch Regulator Block */
		val8 = r8712_read8(padapter, SPS1_CTRL);
		r8712_write8(padapter, SPS1_CTRL, (val8 | SPS1_SWEN));
		r8712_write32(padapter, SPS1_CTRL, 0x00a7b267);
		val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
		r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 | 0x08));
		/* Engineer Packet CP test Enable */
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 | 0x20));
		val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
		r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 & 0x6F));
		/* Enable AFE clock */
		val8 = r8712_read8(padapter, AFE_XTAL_CTRL + 1);
		r8712_write8(padapter, AFE_XTAL_CTRL + 1, (val8 & 0xfb));
		/* Enable AFE PLL Macro Block */
		val8 = r8712_read8(padapter, AFE_PLL_CTRL);
		r8712_write8(padapter, AFE_PLL_CTRL, (val8 | 0x11));
		/* Attatch AFE PLL to MACTOP/BB/PCIe Digital */
		val8 = r8712_read8(padapter, SYS_ISO_CTRL);
		r8712_write8(padapter, SYS_ISO_CTRL, (val8 & 0xEE));
		/* Switch to 40M clock */
		val8 = r8712_read8(padapter, SYS_CLKR);
		r8712_write8(padapter, SYS_CLKR, val8 & (~SYS_CLKSEL));
		/* SSC Disable */
		val8 = r8712_read8(padapter, SYS_CLKR);
		/* Enable MAC clock */
		val8 = r8712_read8(padapter, SYS_CLKR + 1);
		r8712_write8(padapter, SYS_CLKR + 1, (val8 | 0x18));
		/* Revised POS, */
		r8712_write8(padapter, PMC_FSM, 0x02);
		/* Enable Core digital and enable IOREG R/W */
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 | 0x08));
		/* Enable REG_EN */
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 | 0x80));
		/* Switch the control path to FW */
		val8 = r8712_read8(padapter, SYS_CLKR + 1);
		r8712_write8(padapter, SYS_CLKR + 1, (val8 | 0x80) & 0xBF);
		r8712_write8(padapter, CR, 0xFC);
		r8712_write8(padapter, CR + 1, 0x37);
		/* Fix the RX FIFO issue(usb error), */
		val8 = r8712_read8(padapter, 0x1025FE5c);
		r8712_write8(padapter, 0x1025FE5c, (val8|BIT(7)));
		val8 = r8712_read8(padapter, 0x102500ab);
		r8712_write8(padapter, 0x102500ab, (val8|BIT(6)|BIT(7)));
		/* For power save, used this in the bit file after 970621 */
		val8 = r8712_read8(padapter, SYS_CLKR);
		r8712_write8(padapter, SYS_CLKR, val8&(~CPU_CLKSEL));
	} else if (pregistrypriv->chip_version == RTL8712_2ndCUT ||
		  pregistrypriv->chip_version == RTL8712_3rdCUT) {
		/* Initialization for power on sequence,
		 * E-Fuse leakage prevention sequence
		 */
		r8712_write8(padapter, 0x37, 0xb0);
		msleep(20);
		r8712_write8(padapter, 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(padapter, SYS_CLKR + 1);
		if (val8 & 0x80) {
			val8 &= 0x3f;
			r8712_write8(padapter, SYS_CLKR + 1, val8);
		}
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		val8 &= 0x73;
		r8712_write8(padapter, SYS_FUNC_EN + 1, val8);
		msleep(20);
		/* Revised POS, */
		/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
		 * Block's Mbias */
		r8712_write8(padapter, SPS0_CTRL + 1, 0x53);
		r8712_write8(padapter, SPS0_CTRL, 0x57);
		val8 = r8712_read8(padapter, AFE_MISC);
		/*Bandgap*/
		r8712_write8(padapter, AFE_MISC, (val8 | AFE_MISC_BGEN));
		r8712_write8(padapter, AFE_MISC, (val8 | AFE_MISC_BGEN |
			     AFE_MISC_MBEN | AFE_MISC_I32_EN));
		/* Enable PLL Power (LDOA15V) */
		val8 = r8712_read8(padapter, LDOA15_CTRL);
		r8712_write8(padapter, LDOA15_CTRL, (val8 | LDA15_EN));
		/* Enable LDOV12D block */
		val8 = r8712_read8(padapter, LDOV12D_CTRL);
		r8712_write8(padapter, LDOV12D_CTRL, (val8 | LDV12_EN));
		val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
		r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 | 0x08));
		/* Engineer Packet CP test Enable */
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 | 0x20));
		/* Support 64k IMEM */
		val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
		r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 & 0x68));
		/* Enable AFE clock */
		val8 = r8712_read8(padapter, AFE_XTAL_CTRL + 1);
		r8712_write8(padapter, AFE_XTAL_CTRL + 1, (val8 & 0xfb));
		/* Enable AFE PLL Macro Block */
		val8 = r8712_read8(padapter, AFE_PLL_CTRL);
		r8712_write8(padapter, 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(padapter, AFE_PLL_CTRL, (val8 | 0x51));
		udelay(500);
		r8712_write8(padapter, AFE_PLL_CTRL, (val8 | 0x11));
		udelay(500);
		/* Attatch AFE PLL to MACTOP/BB/PCIe Digital */
		val8 = r8712_read8(padapter, SYS_ISO_CTRL);
		r8712_write8(padapter, SYS_ISO_CTRL, (val8 & 0xEE));
		/* Switch to 40M clock */
		r8712_write8(padapter, SYS_CLKR, 0x00);
		/* CPU Clock and 80M Clock SSC Disable to overcome FW download
		 * fail timing issue.
		 */
		val8 = r8712_read8(padapter, SYS_CLKR);
		r8712_write8(padapter, SYS_CLKR, (val8 | 0xa0));
		/* Enable MAC clock */
		val8 = r8712_read8(padapter, SYS_CLKR + 1);
		r8712_write8(padapter, SYS_CLKR + 1, (val8 | 0x18));
		/* Revised POS, */
		r8712_write8(padapter, PMC_FSM, 0x02);
		/* Enable Core digital and enable IOREG R/W */
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 | 0x08));
		/* Enable REG_EN */
		val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
		r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 | 0x80));
		/* Switch the control path to FW */
		val8 = r8712_read8(padapter, SYS_CLKR + 1);
		r8712_write8(padapter, SYS_CLKR + 1, (val8 | 0x80) & 0xBF);
		r8712_write8(padapter, CR, 0xFC);
		r8712_write8(padapter, CR + 1, 0x37);
		/* Fix the RX FIFO issue(usb error), 970410 */
		val8 = r8712_read8(padapter, 0x1025FE5c);
		r8712_write8(padapter, 0x1025FE5c, (val8 | BIT(7)));
		/* For power save, used this in the bit file after 970621 */
		val8 = r8712_read8(padapter, SYS_CLKR);
		r8712_write8(padapter, SYS_CLKR, val8 & (~CPU_CLKSEL));
		/* Revised for 8051 ROM code wrong operation. */
		r8712_write8(padapter, 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(padapter, TCR);
			if ((val8 & _TXDMA_INIT_VALUE) == _TXDMA_INIT_VALUE)
				break;
			udelay(5); /* PlatformStallExecution(5); */
		} while (PollingCnt--);	/* Delay 1ms */

		if (PollingCnt <= 0) {
			val8 = r8712_read8(padapter, CR);
			r8712_write8(padapter, CR, val8&(~_TXDMA_EN));
			udelay(2); /* PlatformStallExecution(2); */
			/* Reset TxDMA */
			r8712_write8(padapter, CR, val8|_TXDMA_EN);
		}
	} else
		ret = _FAIL;
	return ret;
}

unsigned int r8712_usb_inirp_init(struct _adapter *padapter)
{
	u8 i;
	struct recv_buf *precvbuf;
	struct intf_hdl *pintfhdl = &padapter->pio_queue->intf;
	struct recv_priv *precvpriv = &(padapter->recvpriv);

	precvpriv->ff_hwaddr = RTL8712_DMA_RX0FF; /* mapping rx fifo address */
	/* issue Rx irp to receive data */
	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
	for (i = 0; i < NR_RECVBUFF; i++) {
		if (r8712_usb_read_port(pintfhdl, precvpriv->ff_hwaddr, 0,
		   (unsigned char *)precvbuf) == false)
			return _FAIL;
		precvbuf++;
		precvpriv->free_recv_buf_queue_cnt--;
	}
	return _SUCCESS;
}

unsigned int r8712_usb_inirp_deinit(struct _adapter *padapter)
{
	r8712_usb_read_port_cancel(padapter);
	return _SUCCESS;
}
Commit	Line	Data
2865d42c LF	1	/******************************************************************************
	2	* usb_halinit.c
	3	*
	4	* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
	5	* Linux device driver for RTL8192SU
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of version 2 of the GNU General Public License as
	9	* published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but WITHOUT
	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	14	* more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along with
	17	* this program; if not, write to the Free Software Foundation, Inc.,
	18	* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
	19	*
	20	* Modifications for inclusion into the Linux staging tree are
	21	* Copyright(c) 2010 Larry Finger. All rights reserved.
	22	*
	23	* Contact information:
	24	* WLAN FAE <wlanfae@realtek.com>
	25	* Larry Finger <Larry.Finger@lwfinger.net>
	26	*
	27	******************************************************************************/
	28
	29	#define _HCI_HAL_INIT_C_
	30
	31	#include "osdep_service.h"
	32	#include "drv_types.h"
	33	#include "usb_ops.h"
	34	#include "usb_osintf.h"
	35
	36	u8 r8712_usb_hal_bus_init(struct _adapter *padapter)
	37	{
	38	u8 val8 = 0;
	39	u8 ret = _SUCCESS;
83285535	40	int PollingCnt = 20;
2865d42c LF	41	struct registry_priv *pregistrypriv = &padapter->registrypriv;
	42
	43	if (pregistrypriv->chip_version == RTL8712_FPGA) {
	44	val8 = 0x01;
	45	/* switch to 80M clock */
	46	r8712_write8(padapter, SYS_CLKR, val8);
	47	val8 = r8712_read8(padapter, SPS1_CTRL);
	48	val8 = val8 \| 0x01;
	49	/* enable VSPS12 LDO Macro block */
	50	r8712_write8(padapter, SPS1_CTRL, val8);
	51	val8 = r8712_read8(padapter, AFE_MISC);
	52	val8 = val8 \| 0x01;
	53	/* Enable AFE Macro Block's Bandgap */
	54	r8712_write8(padapter, AFE_MISC, val8);
	55	val8 = r8712_read8(padapter, LDOA15_CTRL);
	56	val8 = val8 \| 0x01;
	57	/* enable LDOA15 block */
	58	r8712_write8(padapter, LDOA15_CTRL, val8);
	59	val8 = r8712_read8(padapter, SPS1_CTRL);
	60	val8 = val8 \| 0x02;
	61	/* Enable VSPS12_SW Macro Block */
	62	r8712_write8(padapter, SPS1_CTRL, val8);
	63	val8 = r8712_read8(padapter, AFE_MISC);
	64	val8 = val8 \| 0x02;
	65	/* Enable AFE Macro Block's Mbias */
	66	r8712_write8(padapter, AFE_MISC, val8);
	67	val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
	68	val8 = val8 \| 0x08;
	69	/* isolate PCIe Analog 1.2V to PCIe 3.3V and PCIE Digital */
	70	r8712_write8(padapter, SYS_ISO_CTRL + 1, val8);
	71	val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
	72	val8 = val8 & 0xEF;
	73	/* attatch AFE PLL to MACTOP/BB/PCIe Digital */
	74	r8712_write8(padapter, SYS_ISO_CTRL + 1, val8);
	75	val8 = r8712_read8(padapter, AFE_XTAL_CTRL + 1);
	76	val8 = val8 & 0xFB;
	77	/* enable AFE clock */
	78	r8712_write8(padapter, AFE_XTAL_CTRL + 1, val8);
	79	val8 = r8712_read8(padapter, AFE_PLL_CTRL);
	80	val8 = val8 \| 0x01;
	81	/* Enable AFE PLL Macro Block */
	82	r8712_write8(padapter, AFE_PLL_CTRL, val8);
	83	val8 = 0xEE;
	84	/* release isolation AFE PLL & MD */
	85	r8712_write8(padapter, SYS_ISO_CTRL, val8);
	86	val8 = r8712_read8(padapter, SYS_CLKR + 1);
	87	val8 = val8 \| 0x08;
	88	/* enable MAC clock */
	89	r8712_write8(padapter, SYS_CLKR + 1, val8);
	90	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
	91	val8 = val8 \| 0x08;
	92	/* enable Core digital and enable IOREG R/W */
	93	r8712_write8(padapter, SYS_FUNC_EN + 1, val8);
	94	val8 = val8 \| 0x80;
	95	/* enable REG_EN */
	96	r8712_write8(padapter, SYS_FUNC_EN + 1, val8);
	97	val8 = r8712_read8(padapter, SYS_CLKR + 1);
	98	val8 = (val8 \| 0x80) & 0xBF;
	99	/* switch the control path */
	100	r8712_write8(padapter, SYS_CLKR + 1, val8);
	101	val8 = 0xFC;
	102	r8712_write8(padapter, CR, val8);
	103	val8 = 0x37;
	104	r8712_write8(padapter, CR + 1, val8);
105	/* reduce EndPoint & init it */
106	r8712_write8(padapter, 0x102500ab, r8712_read8(padapter,
107	0x102500ab) \| BIT(6) \| BIT(7));
108	/* consideration of power consumption - init */
109	r8712_write8(padapter, 0x10250008, r8712_read8(padapter,
110	0x10250008) & 0xfffffffb);
111	} else if (pregistrypriv->chip_version == RTL8712_1stCUT) {
112	/* Initialization for power on sequence, */
113	r8712_write8(padapter, SPS0_CTRL + 1, 0x53);
114	r8712_write8(padapter, SPS0_CTRL, 0x57);
25985edc	115	/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
2865d42c LF	116	* Block's Mbias
	117	*/
	118	val8 = r8712_read8(padapter, AFE_MISC);
	119	r8712_write8(padapter, AFE_MISC, (val8 \| AFE_MISC_BGEN \|
	120	AFE_MISC_MBEN));
	121	/* Enable LDOA15 block */
	122	val8 = r8712_read8(padapter, LDOA15_CTRL);
	123	r8712_write8(padapter, LDOA15_CTRL, (val8 \| LDA15_EN));
	124	val8 = r8712_read8(padapter, SPS1_CTRL);
	125	r8712_write8(padapter, SPS1_CTRL, (val8 \| SPS1_LDEN));
	126	msleep(20);
	127	/* Enable Switch Regulator Block */
	128	val8 = r8712_read8(padapter, SPS1_CTRL);
	129	r8712_write8(padapter, SPS1_CTRL, (val8 \| SPS1_SWEN));
	130	r8712_write32(padapter, SPS1_CTRL, 0x00a7b267);
	131	val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
	132	r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 \| 0x08));
	133	/* Engineer Packet CP test Enable */
	134	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
	135	r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 \| 0x20));
	136	val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
	137	r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 & 0x6F));
	138	/* Enable AFE clock */
	139	val8 = r8712_read8(padapter, AFE_XTAL_CTRL + 1);
	140	r8712_write8(padapter, AFE_XTAL_CTRL + 1, (val8 & 0xfb));
	141	/* Enable AFE PLL Macro Block */
	142	val8 = r8712_read8(padapter, AFE_PLL_CTRL);
	143	r8712_write8(padapter, AFE_PLL_CTRL, (val8 \| 0x11));
	144	/* Attatch AFE PLL to MACTOP/BB/PCIe Digital */
	145	val8 = r8712_read8(padapter, SYS_ISO_CTRL);
	146	r8712_write8(padapter, SYS_ISO_CTRL, (val8 & 0xEE));
	147	/* Switch to 40M clock */
	148	val8 = r8712_read8(padapter, SYS_CLKR);
	149	r8712_write8(padapter, SYS_CLKR, val8 & (~SYS_CLKSEL));
	150	/* SSC Disable */
	151	val8 = r8712_read8(padapter, SYS_CLKR);
	152	/* Enable MAC clock */
	153	val8 = r8712_read8(padapter, SYS_CLKR + 1);
	154	r8712_write8(padapter, SYS_CLKR + 1, (val8 \| 0x18));
	155	/* Revised POS, */
	156	r8712_write8(padapter, PMC_FSM, 0x02);
	157	/* Enable Core digital and enable IOREG R/W */
	158	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
	159	r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 \| 0x08));
	160	/* Enable REG_EN */
	161	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
	162	r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 \| 0x80));
	163	/* Switch the control path to FW */
	164	val8 = r8712_read8(padapter, SYS_CLKR + 1);
	165	r8712_write8(padapter, SYS_CLKR + 1, (val8 \| 0x80) & 0xBF);
	166	r8712_write8(padapter, CR, 0xFC);
	167	r8712_write8(padapter, CR + 1, 0x37);
	168	/* Fix the RX FIFO issue(usb error), */
	169	val8 = r8712_read8(padapter, 0x1025FE5c);
	170	r8712_write8(padapter, 0x1025FE5c, (val8\|BIT(7)));
	171	val8 = r8712_read8(padapter, 0x102500ab);
	172	r8712_write8(padapter, 0x102500ab, (val8\|BIT(6)\|BIT(7)));
	173	/* For power save, used this in the bit file after 970621 */
	174	val8 = r8712_read8(padapter, SYS_CLKR);
	175	r8712_write8(padapter, SYS_CLKR, val8&(~CPU_CLKSEL));
	176	} else if (pregistrypriv->chip_version == RTL8712_2ndCUT \|\|
	177	pregistrypriv->chip_version == RTL8712_3rdCUT) {
	178	/* Initialization for power on sequence,
	179	* E-Fuse leakage prevention sequence
180	*/
181	r8712_write8(padapter, 0x37, 0xb0);
182	msleep(20);
183	r8712_write8(padapter, 0x37, 0x30);
184	/* Set control path switch to HW control and reset Digital Core,
185	* CPU Core and MAC I/O to solve FW download fail when system
186	* from resume sate.
187	*/
188	val8 = r8712_read8(padapter, SYS_CLKR + 1);
189	if (val8 & 0x80) {
190	val8 &= 0x3f;
191	r8712_write8(padapter, SYS_CLKR + 1, val8);
192	}
193	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
194	val8 &= 0x73;
195	r8712_write8(padapter, SYS_FUNC_EN + 1, val8);
196	msleep(20);
197	/* Revised POS, */
198	/* Enable AFE Macro Block's Bandgap and Enable AFE Macro
199	* Block's Mbias */
200	r8712_write8(padapter, SPS0_CTRL + 1, 0x53);
201	r8712_write8(padapter, SPS0_CTRL, 0x57);
202	val8 = r8712_read8(padapter, AFE_MISC);
203	/Bandgap/
204	r8712_write8(padapter, AFE_MISC, (val8 \| AFE_MISC_BGEN));
205	r8712_write8(padapter, AFE_MISC, (val8 \| AFE_MISC_BGEN \|
206	AFE_MISC_MBEN \| AFE_MISC_I32_EN));
207	/* Enable PLL Power (LDOA15V) */
208	val8 = r8712_read8(padapter, LDOA15_CTRL);
209	r8712_write8(padapter, LDOA15_CTRL, (val8 \| LDA15_EN));
210	/* Enable LDOV12D block */
211	val8 = r8712_read8(padapter, LDOV12D_CTRL);
212	r8712_write8(padapter, LDOV12D_CTRL, (val8 \| LDV12_EN));
213	val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
214	r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 \| 0x08));
215	/* Engineer Packet CP test Enable */
216	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
217	r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 \| 0x20));
218	/* Support 64k IMEM */
219	val8 = r8712_read8(padapter, SYS_ISO_CTRL + 1);
220	r8712_write8(padapter, SYS_ISO_CTRL + 1, (val8 & 0x68));
221	/* Enable AFE clock */
222	val8 = r8712_read8(padapter, AFE_XTAL_CTRL + 1);
223	r8712_write8(padapter, AFE_XTAL_CTRL + 1, (val8 & 0xfb));
224	/* Enable AFE PLL Macro Block */
225	val8 = r8712_read8(padapter, AFE_PLL_CTRL);
226	r8712_write8(padapter, AFE_PLL_CTRL, (val8 \| 0x11));
227	/* Some sample will download fw failure. The clock will be
228	* stable with 500 us delay after reset the PLL
229	* TODO: When usleep is added to kernel, change next 3
230	* udelay(500) to usleep(500)
231	*/
232	udelay(500);
233	r8712_write8(padapter, AFE_PLL_CTRL, (val8 \| 0x51));
234	udelay(500);
235	r8712_write8(padapter, AFE_PLL_CTRL, (val8 \| 0x11));
236	udelay(500);
237	/* Attatch AFE PLL to MACTOP/BB/PCIe Digital */
238	val8 = r8712_read8(padapter, SYS_ISO_CTRL);
239	r8712_write8(padapter, SYS_ISO_CTRL, (val8 & 0xEE));
240	/* Switch to 40M clock */
241	r8712_write8(padapter, SYS_CLKR, 0x00);
242	/* CPU Clock and 80M Clock SSC Disable to overcome FW download
243	* fail timing issue.
244	*/
245	val8 = r8712_read8(padapter, SYS_CLKR);
246	r8712_write8(padapter, SYS_CLKR, (val8 \| 0xa0));
247	/* Enable MAC clock */
248	val8 = r8712_read8(padapter, SYS_CLKR + 1);
249	r8712_write8(padapter, SYS_CLKR + 1, (val8 \| 0x18));
250	/* Revised POS, */
251	r8712_write8(padapter, PMC_FSM, 0x02);
252	/* Enable Core digital and enable IOREG R/W */
253	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
254	r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 \| 0x08));
255	/* Enable REG_EN */
256	val8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
257	r8712_write8(padapter, SYS_FUNC_EN + 1, (val8 \| 0x80));
258	/* Switch the control path to FW */
259	val8 = r8712_read8(padapter, SYS_CLKR + 1);
260	r8712_write8(padapter, SYS_CLKR + 1, (val8 \| 0x80) & 0xBF);
261	r8712_write8(padapter, CR, 0xFC);
262	r8712_write8(padapter, CR + 1, 0x37);
263	/* Fix the RX FIFO issue(usb error), 970410 */
264	val8 = r8712_read8(padapter, 0x1025FE5c);
265	r8712_write8(padapter, 0x1025FE5c, (val8 \| BIT(7)));
266	/* For power save, used this in the bit file after 970621 */
267	val8 = r8712_read8(padapter, SYS_CLKR);
268	r8712_write8(padapter, SYS_CLKR, val8 & (~CPU_CLKSEL));
269	/* Revised for 8051 ROM code wrong operation. */
270	r8712_write8(padapter, 0x1025fe1c, 0x80);
271	/* To make sure that TxDMA can ready to download FW.
272	* We should reset TxDMA if IMEM RPT was not ready.
273	*/
274	do {
275	val8 = r8712_read8(padapter, TCR);
276	if ((val8 & _TXDMA_INIT_VALUE) == _TXDMA_INIT_VALUE)
277	break;
278	udelay(5); /* PlatformStallExecution(5); */
279	} while (PollingCnt--); /* Delay 1ms */
280
281	if (PollingCnt <= 0) {
282	val8 = r8712_read8(padapter, CR);
283	r8712_write8(padapter, CR, val8&(~_TXDMA_EN));
284	udelay(2); /* PlatformStallExecution(2); */
285	/* Reset TxDMA */
286	r8712_write8(padapter, CR, val8\|_TXDMA_EN);
287	}
288	} else
289	ret = _FAIL;
290	return ret;
291	}
292
293	unsigned int r8712_usb_inirp_init(struct _adapter *padapter)
294	{
295	u8 i;
296	struct recv_buf *precvbuf;
297	struct intf_hdl *pintfhdl = &padapter->pio_queue->intf;
298	struct recv_priv *precvpriv = &(padapter->recvpriv);
299
300	precvpriv->ff_hwaddr = RTL8712_DMA_RX0FF; /* mapping rx fifo address */
301	/* issue Rx irp to receive data */
302	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
303	for (i = 0; i < NR_RECVBUFF; i++) {
304	if (r8712_usb_read_port(pintfhdl, precvpriv->ff_hwaddr, 0,
305	(unsigned char *)precvbuf) == false)
306	return _FAIL;
307	precvbuf++;
308	precvpriv->free_recv_buf_queue_cnt--;
309	}
310	return _SUCCESS;
311	}
312
313	unsigned int r8712_usb_inirp_deinit(struct _adapter *padapter)
314	{
315	r8712_usb_read_port_cancel(padapter);
316	return _SUCCESS;
317	}