1 /******************************************************************************
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 * Linux device driver for RTL8192SU
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.
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
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
20 * Modifications for inclusion into the Linux staging tree are
21 * Copyright(c) 2010 Larry Finger. All rights reserved.
23 * Contact information:
24 * WLAN FAE <wlanfae@realtek.com>.
25 * Larry Finger <Larry.Finger@lwfinger.net>
27 ******************************************************************************/
31 #include "osdep_service.h"
32 #include "drv_types.h"
33 #include "rtl871x_byteorder.h"
34 #include "usb_osintf.h"
36 #define FWBUFF_ALIGN_SZ 512
37 #define MAX_DUMP_FWSZ 49152 /*default = 49152 (48k)*/
39 static u32 rtl871x_open_fw(struct _adapter *padapter, void **pphfwfile_hdl,
40 const u8 **ppmappedfw)
43 const char firmware_file[] = "rtlwifi/rtl8712u.bin";
44 const struct firmware **praw = (const struct firmware **)
46 struct dvobj_priv *pdvobjpriv = (struct dvobj_priv *)
47 (&padapter->dvobjpriv);
48 struct usb_device *pusbdev = pdvobjpriv->pusbdev;
50 printk(KERN_INFO "r8712u: Loading firmware from \"%s\"\n",
52 rc = request_firmware(praw, firmware_file, &pusbdev->dev);
54 printk(KERN_ERR "r8712u: Unable to load firmware\n");
55 printk(KERN_ERR "r8712u: Install latest linux-firmware\n");
58 *ppmappedfw = (u8 *)((*praw)->data);
61 MODULE_FIRMWARE("rtlwifi/rtl8712u.bin");
63 static void fill_fwpriv(struct _adapter *padapter, struct fw_priv *pfwpriv)
65 struct dvobj_priv *pdvobj = (struct dvobj_priv *)&padapter->dvobjpriv;
66 struct registry_priv *pregpriv = &padapter->registrypriv;
68 memset(pfwpriv, 0, sizeof(struct fw_priv));
69 /* todo: check if needs endian conversion */
70 pfwpriv->hci_sel = RTL8712_HCI_TYPE_72USB;
71 pfwpriv->usb_ep_num = (u8)pdvobj->nr_endpoint;
72 pfwpriv->bw_40MHz_en = pregpriv->cbw40_enable;
73 switch (pregpriv->rf_config) {
75 pfwpriv->rf_config = RTL8712_RFC_1T1R;
78 pfwpriv->rf_config = RTL8712_RFC_2T2R;
82 pfwpriv->rf_config = RTL8712_RFC_1T2R;
84 pfwpriv->mp_mode = (pregpriv->mp_mode == 1) ? 1 : 0;
85 pfwpriv->vcsType = pregpriv->vrtl_carrier_sense; /* 0:off 1:on 2:auto */
86 pfwpriv->vcsMode = pregpriv->vcs_type; /* 1:RTS/CTS 2:CTS to self */
87 /* default enable turboMode */
88 pfwpriv->turboMode = ((pregpriv->wifi_test == 1) ? 0 : 1);
89 pfwpriv->lowPowerMode = pregpriv->low_power;
92 static void update_fwhdr(struct fw_hdr *pfwhdr, const u8 *pmappedfw)
94 pfwhdr->signature = le16_to_cpu(*(u16 *)pmappedfw);
95 pfwhdr->version = le16_to_cpu(*(u16 *)(pmappedfw+2));
96 /* define the size of boot loader */
97 pfwhdr->dmem_size = le32_to_cpu(*(uint *)(pmappedfw+4));
98 /* define the size of FW in IMEM */
99 pfwhdr->img_IMEM_size = le32_to_cpu(*(uint *)(pmappedfw+8));
100 /* define the size of FW in SRAM */
101 pfwhdr->img_SRAM_size = le32_to_cpu(*(uint *)(pmappedfw+12));
102 /* define the size of DMEM variable */
103 pfwhdr->fw_priv_sz = le32_to_cpu(*(uint *)(pmappedfw+16));
106 static u8 chk_fwhdr(struct fw_hdr *pfwhdr, u32 ulfilelength)
111 /* check signature */
112 if ((pfwhdr->signature != 0x8712) && (pfwhdr->signature != 0x8192))
114 /* check interface */
115 intf = (u8)((pfwhdr->version&0x3000) >> 12);
117 rfconf = (u8)((pfwhdr->version&0xC000) >> 14);
118 /* check fw_priv_sze & sizeof(struct fw_priv) */
119 if (pfwhdr->fw_priv_sz != sizeof(struct fw_priv))
121 /* check fw_sz & image_fw_sz */
122 fwhdrsz = FIELD_OFFSET(struct fw_hdr, fwpriv) + pfwhdr->fw_priv_sz;
123 fw_sz = fwhdrsz + pfwhdr->img_IMEM_size + pfwhdr->img_SRAM_size +
125 if (fw_sz != ulfilelength)
130 static u8 rtl8712_dl_fw(struct _adapter *padapter)
135 u32 maxlen = 0, tmp32; /* for compare usage */
136 uint dump_imem_sz, imem_sz, dump_emem_sz, emem_sz; /* max = 49152; */
138 u32 ulfilelength; /* FW file size */
139 void *phfwfile_hdl = NULL;
140 const u8 *pmappedfw = NULL;
141 u8 *ptmpchar = NULL, *ppayload, *ptr;
142 struct tx_desc *ptx_desc;
143 u32 txdscp_sz = sizeof(struct tx_desc);
145 ulfilelength = rtl871x_open_fw(padapter, &phfwfile_hdl, &pmappedfw);
146 if (pmappedfw && (ulfilelength > 0)) {
147 update_fwhdr(&fwhdr, pmappedfw);
148 if (chk_fwhdr(&fwhdr, ulfilelength) == _FAIL)
150 fill_fwpriv(padapter, &fwhdr.fwpriv);
151 /* firmware check ok */
152 maxlen = (fwhdr.img_IMEM_size > fwhdr.img_SRAM_size) ?
153 fwhdr.img_IMEM_size : fwhdr.img_SRAM_size;
155 ptmpchar = _malloc(maxlen + FWBUFF_ALIGN_SZ);
156 if (ptmpchar == NULL)
159 ptx_desc = (struct tx_desc *)(ptmpchar + FWBUFF_ALIGN_SZ -
160 ((addr_t)(ptmpchar) & (FWBUFF_ALIGN_SZ - 1)));
161 ppayload = (u8 *)(ptx_desc) + txdscp_sz;
162 ptr = (u8 *)pmappedfw + FIELD_OFFSET(struct fw_hdr, fwpriv) +
164 /* Download FirmWare */
165 /* 1. determine IMEM code size and Load IMEM Code Section */
166 imem_sz = fwhdr.img_IMEM_size;
168 memset(ptx_desc, 0, TXDESC_SIZE);
169 if (imem_sz > MAX_DUMP_FWSZ/*49152*/)
170 dump_imem_sz = MAX_DUMP_FWSZ;
172 dump_imem_sz = imem_sz;
173 ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
175 ptx_desc->txdw0 |= cpu_to_le32(dump_imem_sz &
177 memcpy(ppayload, ptr, dump_imem_sz);
178 r8712_write_mem(padapter, RTL8712_DMA_VOQ,
179 dump_imem_sz + TXDESC_SIZE,
182 imem_sz -= dump_imem_sz;
183 } while (imem_sz > 0);
185 tmp16 = r8712_read16(padapter, TCR);
186 while (((tmp16 & _IMEM_CODE_DONE) == 0) && (i > 0)) {
188 tmp16 = r8712_read16(padapter, TCR);
191 if (i == 0 || (tmp16 & _IMEM_CHK_RPT) == 0)
194 /* 2.Download EMEM code size and Load EMEM Code Section */
195 emem_sz = fwhdr.img_SRAM_size;
197 memset(ptx_desc, 0, TXDESC_SIZE);
198 if (emem_sz > MAX_DUMP_FWSZ) /* max=48k */
199 dump_emem_sz = MAX_DUMP_FWSZ;
201 dump_emem_sz = emem_sz;
202 ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
204 ptx_desc->txdw0 |= cpu_to_le32(dump_emem_sz &
206 memcpy(ppayload, ptr, dump_emem_sz);
207 r8712_write_mem(padapter, RTL8712_DMA_VOQ,
208 dump_emem_sz+TXDESC_SIZE, (u8 *)ptx_desc);
210 emem_sz -= dump_emem_sz;
211 } while (emem_sz > 0);
213 tmp16 = r8712_read16(padapter, TCR);
214 while (((tmp16 & _EMEM_CODE_DONE) == 0) && (i > 0)) {
216 tmp16 = r8712_read16(padapter, TCR);
219 if (i == 0 || (tmp16 & _EMEM_CHK_RPT) == 0)
223 tmp8 = r8712_read8(padapter, SYS_CLKR);
224 r8712_write8(padapter, SYS_CLKR, tmp8|BIT(2));
225 tmp8_a = r8712_read8(padapter, SYS_CLKR);
226 if (tmp8_a != (tmp8|BIT(2)))
229 tmp8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
230 r8712_write8(padapter, SYS_FUNC_EN+1, tmp8|BIT(2));
231 tmp8_a = r8712_read8(padapter, SYS_FUNC_EN + 1);
232 if (tmp8_a != (tmp8|BIT(2)))
235 tmp32 = r8712_read32(padapter, TCR);
237 /* 4.polling IMEM Ready */
239 tmp16 = r8712_read16(padapter, TCR);
240 while (((tmp16 & _IMEM_RDY) == 0) && (i > 0)) {
242 tmp16 = r8712_read16(padapter, TCR);
246 r8712_write16(padapter, 0x10250348, 0xc000);
247 r8712_write16(padapter, 0x10250348, 0xc001);
248 r8712_write16(padapter, 0x10250348, 0x2000);
249 r8712_write16(padapter, 0x10250348, 0x2001);
250 r8712_write16(padapter, 0x10250348, 0x2002);
251 r8712_write16(padapter, 0x10250348, 0x2003);
254 /* 5.Download DMEM code size and Load EMEM Code Section */
255 memset(ptx_desc, 0, TXDESC_SIZE);
256 ptx_desc->txdw0 |= cpu_to_le32(fwhdr.fw_priv_sz&0x0000ffff);
257 ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
258 memcpy(ppayload, &fwhdr.fwpriv, fwhdr.fw_priv_sz);
259 r8712_write_mem(padapter, RTL8712_DMA_VOQ,
260 fwhdr.fw_priv_sz + TXDESC_SIZE, (u8 *)ptx_desc);
262 /* polling dmem code done */
264 tmp16 = r8712_read16(padapter, TCR);
265 while (((tmp16 & _DMEM_CODE_DONE) == 0) && (i > 0)) {
267 tmp16 = r8712_read16(padapter, TCR);
273 tmp8 = r8712_read8(padapter, 0x1025000A);
274 if (tmp8 & BIT(4)) /* When boot from EEPROM,
275 & FW need more time to read EEPROM */
277 else /* boot from EFUSE */
279 tmp16 = r8712_read16(padapter, TCR);
280 while (((tmp16 & _FWRDY) == 0) && (i > 0)) {
282 tmp16 = r8712_read16(padapter, TCR);
296 uint rtl8712_hal_init(struct _adapter *padapter)
301 /* r8712 firmware download */
302 if (rtl8712_dl_fw(padapter) != _SUCCESS)
305 printk(KERN_INFO "r8712u: 1 RCR=0x%x\n", r8712_read32(padapter, RCR));
306 val32 = r8712_read32(padapter, RCR);
307 r8712_write32(padapter, RCR, (val32 | BIT(26))); /* Enable RX TCP
309 printk(KERN_INFO "r8712u: 2 RCR=0x%x\n", r8712_read32(padapter, RCR));
310 val32 = r8712_read32(padapter, RCR);
311 r8712_write32(padapter, RCR, (val32|BIT(25))); /* Append PHY status */
313 val32 = r8712_read32(padapter, 0x10250040);
314 r8712_write32(padapter, 0x10250040, (val32&0x00FFFFFF));
315 /* for usb rx aggregation */
316 r8712_write8(padapter, 0x102500B5, r8712_read8(padapter, 0x102500B5) |
317 BIT(0)); /* page = 128bytes */
318 r8712_write8(padapter, 0x102500BD, r8712_read8(padapter, 0x102500BD) |
319 BIT(7)); /* enable usb rx aggregation */
320 r8712_write8(padapter, 0x102500D9, 1); /* TH=1 => means that invalidate
321 * usb rx aggregation */
322 r8712_write8(padapter, 0x1025FE5B, 0x04); /* 1.7ms/4 */
323 /* Fix the RX FIFO issue(USB error) */
324 r8712_write8(padapter, 0x1025fe5C, r8712_read8(padapter, 0x1025fe5C)
326 for (i = 0; i < 6; i++)
327 padapter->eeprompriv.mac_addr[i] = r8712_read8(padapter,
332 uint rtl8712_hal_deinit(struct _adapter *padapter)
334 r8712_write8(padapter, RF_CTRL, 0x00);
338 r8712_write8(padapter, SYS_CLKR+1, 0x38); /* Switch Control Path */
339 r8712_write8(padapter, SYS_FUNC_EN+1, 0x70);
340 r8712_write8(padapter, PMC_FSM, 0x06); /* Enable Loader Data Keep */
341 r8712_write8(padapter, SYS_ISO_CTRL, 0xF9); /* Isolation signals from
343 r8712_write8(padapter, SYS_ISO_CTRL+1, 0xe8); /* Enable EFUSE 1.2V */
344 r8712_write8(padapter, AFE_PLL_CTRL, 0x00); /* Disable AFE PLL. */
345 r8712_write8(padapter, LDOA15_CTRL, 0x54); /* Disable A15V */
346 r8712_write8(padapter, SYS_FUNC_EN+1, 0x50); /* Disable E-Fuse 1.2V */
347 r8712_write8(padapter, LDOV12D_CTRL, 0x24); /* Disable LDO12(for CE) */
348 r8712_write8(padapter, AFE_MISC, 0x30); /* Disable AFE BG&MB */
349 /* Option for Disable 1.6V LDO. */
350 r8712_write8(padapter, SPS0_CTRL, 0x56); /* Disable 1.6V LDO */
351 r8712_write8(padapter, SPS0_CTRL+1, 0x43); /* Set SW PFM */
355 uint rtl871x_hal_init(struct _adapter *padapter)
357 padapter->hw_init_completed = false;
358 if (padapter->halpriv.hal_bus_init == NULL)
361 if (padapter->halpriv.hal_bus_init(padapter) != _SUCCESS)
364 if (rtl8712_hal_init(padapter) == _SUCCESS)
365 padapter->hw_init_completed = true;
367 padapter->hw_init_completed = false;