1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* Copyright (C) 2022 Lorenzo Bianconi <lorenzo@kernel.org> */
3
4 #ifndef __MTK_WED_WO_H
5 #define __MTK_WED_WO_H
6
7 #include <linux/skbuff.h>
8 #include <linux/netdevice.h>
9
10 struct mtk_wed_hw;
11
12 struct mtk_wed_mcu_hdr {
13 /* DW0 */
14 u8 version;
15 u8 cmd;
16 __le16 length;
17
18 /* DW1 */
19 __le16 seq;
20 __le16 flag;
21
22 /* DW2 */
23 __le32 status;
24
25 /* DW3 */
26 u8 rsv[20];
27 };
28
29 struct mtk_wed_wo_log_info {
30 __le32 sn;
31 __le32 total;
32 __le32 rro;
33 __le32 mod;
34 };
35
36 enum mtk_wed_wo_event {
37 MTK_WED_WO_EVT_LOG_DUMP = 0x1,
38 MTK_WED_WO_EVT_PROFILING = 0x2,
39 MTK_WED_WO_EVT_RXCNT_INFO = 0x3,
40 };
41
42 #define MTK_WED_MODULE_ID_WO 1
43 #define MTK_FW_DL_TIMEOUT 4000000 /* us */
44 #define MTK_WOCPU_TIMEOUT 2000000 /* us */
45
46 enum {
47 MTK_WED_WARP_CMD_FLAG_RSP = BIT(0),
48 MTK_WED_WARP_CMD_FLAG_NEED_RSP = BIT(1),
49 MTK_WED_WARP_CMD_FLAG_FROM_TO_WO = BIT(2),
50 };
51
52 #define MTK_WED_WO_CPU_MCUSYS_RESET_ADDR 0x15194050
53 #define MTK_WED_WO_CPU_WO0_MCUSYS_RESET_MASK 0x20
54 #define MTK_WED_WO_CPU_WO1_MCUSYS_RESET_MASK 0x1
55
56 enum {
57 MTK_WED_WO_REGION_EMI,
58 MTK_WED_WO_REGION_ILM,
59 MTK_WED_WO_REGION_DATA,
60 MTK_WED_WO_REGION_BOOT,
61 __MTK_WED_WO_REGION_MAX,
62 };
63
64 enum mtk_wed_wo_state {
65 MTK_WED_WO_STATE_UNDEFINED,
66 MTK_WED_WO_STATE_INIT,
67 MTK_WED_WO_STATE_ENABLE,
68 MTK_WED_WO_STATE_DISABLE,
69 MTK_WED_WO_STATE_HALT,
70 MTK_WED_WO_STATE_GATING,
71 MTK_WED_WO_STATE_SER_RESET,
72 MTK_WED_WO_STATE_WF_RESET,
73 };
74
75 enum mtk_wed_wo_done_state {
76 MTK_WED_WOIF_UNDEFINED,
77 MTK_WED_WOIF_DISABLE_DONE,
78 MTK_WED_WOIF_TRIGGER_ENABLE,
79 MTK_WED_WOIF_ENABLE_DONE,
80 MTK_WED_WOIF_TRIGGER_GATING,
81 MTK_WED_WOIF_GATING_DONE,
82 MTK_WED_WOIF_TRIGGER_HALT,
83 MTK_WED_WOIF_HALT_DONE,
84 };
85
86 enum mtk_wed_dummy_cr_idx {
87 MTK_WED_DUMMY_CR_FWDL,
88 MTK_WED_DUMMY_CR_WO_STATUS,
89 };
90
91 #define MT7986_FIRMWARE_WO0 "mediatek/mt7986_wo_0.bin"
92 #define MT7986_FIRMWARE_WO1 "mediatek/mt7986_wo_1.bin"
93
94 #define MTK_WO_MCU_CFG_LS_BASE 0
95 #define MTK_WO_MCU_CFG_LS_HW_VER_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x000)
96 #define MTK_WO_MCU_CFG_LS_FW_VER_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x004)
97 #define MTK_WO_MCU_CFG_LS_CFG_DBG1_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x00c)
98 #define MTK_WO_MCU_CFG_LS_CFG_DBG2_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x010)
99 #define MTK_WO_MCU_CFG_LS_WF_MCCR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x014)
100 #define MTK_WO_MCU_CFG_LS_WF_MCCR_SET_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x018)
101 #define MTK_WO_MCU_CFG_LS_WF_MCCR_CLR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x01c)
102 #define MTK_WO_MCU_CFG_LS_WF_MCU_CFG_WM_WA_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x050)
103 #define MTK_WO_MCU_CFG_LS_WM_BOOT_ADDR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x060)
104 #define MTK_WO_MCU_CFG_LS_WA_BOOT_ADDR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x064)
105
106 #define MTK_WO_MCU_CFG_LS_WF_WM_WA_WM_CPU_RSTB_MASK BIT(5)
107 #define MTK_WO_MCU_CFG_LS_WF_WM_WA_WA_CPU_RSTB_MASK BIT(0)
108
109 #define MTK_WED_WO_RING_SIZE 256
110 #define MTK_WED_WO_CMD_LEN 1504
111
112 #define MTK_WED_WO_TXCH_NUM 0
113 #define MTK_WED_WO_RXCH_NUM 1
114 #define MTK_WED_WO_RXCH_WO_EXCEPTION 7
115
116 #define MTK_WED_WO_TXCH_INT_MASK BIT(0)
117 #define MTK_WED_WO_RXCH_INT_MASK BIT(1)
118 #define MTK_WED_WO_EXCEPTION_INT_MASK BIT(7)
119 #define MTK_WED_WO_ALL_INT_MASK (MTK_WED_WO_RXCH_INT_MASK | \
120 MTK_WED_WO_EXCEPTION_INT_MASK)
121
122 #define MTK_WED_WO_CCIF_BUSY 0x004
123 #define MTK_WED_WO_CCIF_START 0x008
124 #define MTK_WED_WO_CCIF_TCHNUM 0x00c
125 #define MTK_WED_WO_CCIF_RCHNUM 0x010
126 #define MTK_WED_WO_CCIF_RCHNUM_MASK GENMASK(7, 0)
127
128 #define MTK_WED_WO_CCIF_ACK 0x014
129 #define MTK_WED_WO_CCIF_IRQ0_MASK 0x018
130 #define MTK_WED_WO_CCIF_IRQ1_MASK 0x01c
131 #define MTK_WED_WO_CCIF_DUMMY1 0x020
132 #define MTK_WED_WO_CCIF_DUMMY2 0x024
133 #define MTK_WED_WO_CCIF_DUMMY3 0x028
134 #define MTK_WED_WO_CCIF_DUMMY4 0x02c
135 #define MTK_WED_WO_CCIF_SHADOW1 0x030
136 #define MTK_WED_WO_CCIF_SHADOW2 0x034
137 #define MTK_WED_WO_CCIF_SHADOW3 0x038
138 #define MTK_WED_WO_CCIF_SHADOW4 0x03c
139 #define MTK_WED_WO_CCIF_DUMMY5 0x050
140 #define MTK_WED_WO_CCIF_DUMMY6 0x054
141 #define MTK_WED_WO_CCIF_DUMMY7 0x058
142 #define MTK_WED_WO_CCIF_DUMMY8 0x05c
143 #define MTK_WED_WO_CCIF_SHADOW5 0x060
144 #define MTK_WED_WO_CCIF_SHADOW6 0x064
145 #define MTK_WED_WO_CCIF_SHADOW7 0x068
146 #define MTK_WED_WO_CCIF_SHADOW8 0x06c
147
148 #define MTK_WED_WO_CTL_SD_LEN1 GENMASK(13, 0)
149 #define MTK_WED_WO_CTL_LAST_SEC1 BIT(14)
150 #define MTK_WED_WO_CTL_BURST BIT(15)
151 #define MTK_WED_WO_CTL_SD_LEN0_SHIFT 16
152 #define MTK_WED_WO_CTL_SD_LEN0 GENMASK(29, 16)
153 #define MTK_WED_WO_CTL_LAST_SEC0 BIT(30)
154 #define MTK_WED_WO_CTL_DMA_DONE BIT(31)
155 #define MTK_WED_WO_INFO_WINFO GENMASK(15, 0)
156
157 struct mtk_wed_wo_memory_region {
158 const char *name;
159 void __iomem *addr;
160 phys_addr_t phy_addr;
161 u32 size;
162 bool shared:1;
163 bool consumed:1;
164 };
165
166 struct mtk_wed_fw_region {
167 __le32 decomp_crc;
168 __le32 decomp_len;
169 __le32 decomp_blk_sz;
170 u8 rsv0[4];
171 __le32 addr;
172 __le32 len;
173 u8 feature_set;
174 u8 rsv1[15];
175 } __packed;
176
177 struct mtk_wed_fw_trailer {
178 u8 chip_id;
179 u8 eco_code;
180 u8 num_region;
181 u8 format_ver;
182 u8 format_flag;
183 u8 rsv[2];
184 char fw_ver[10];
185 char build_date[15];
186 u32 crc;
187 };
188
189 struct mtk_wed_wo_queue_regs {
190 u32 desc_base;
191 u32 ring_size;
192 u32 cpu_idx;
193 u32 dma_idx;
194 };
195
196 struct mtk_wed_wo_queue_desc {
197 __le32 buf0;
198 __le32 ctrl;
199 __le32 buf1;
200 __le32 info;
201 __le32 reserved[4];
202 } __packed __aligned(32);
203
204 struct mtk_wed_wo_queue_entry {
205 dma_addr_t addr;
206 void *buf;
207 u32 len;
208 };
209
210 struct mtk_wed_wo_queue {
211 struct mtk_wed_wo_queue_regs regs;
212
213 struct page_frag_cache cache;
214
215 struct mtk_wed_wo_queue_desc *desc;
216 dma_addr_t desc_dma;
217
218 struct mtk_wed_wo_queue_entry *entry;
219
220 u16 head;
221 u16 tail;
222 int n_desc;
223 int queued;
224 int buf_size;
225
226 };
227
228 struct mtk_wed_wo {
229 struct mtk_wed_hw *hw;
230 struct mtk_wed_wo_memory_region boot;
231
232 struct mtk_wed_wo_queue q_tx;
233 struct mtk_wed_wo_queue q_rx;
234
235 struct {
236 struct mutex mutex;
237 int timeout;
238 u16 seq;
239
240 struct sk_buff_head res_q;
241 wait_queue_head_t wait;
242 } mcu;
243
244 struct {
245 struct regmap *regs;
246
247 spinlock_t lock;
248 struct tasklet_struct irq_tasklet;
249 int irq;
250 u32 irq_mask;
251 } mmio;
252 };
253
254 static inline int
mtk_wed_mcu_check_msg(struct mtk_wed_wo * wo,struct sk_buff * skb)255 mtk_wed_mcu_check_msg(struct mtk_wed_wo *wo, struct sk_buff *skb)
256 {
257 struct mtk_wed_mcu_hdr *hdr = (struct mtk_wed_mcu_hdr *)skb->data;
258
259 if (hdr->version)
260 return -EINVAL;
261
262 if (skb->len < sizeof(*hdr) || skb->len != le16_to_cpu(hdr->length))
263 return -EINVAL;
264
265 return 0;
266 }
267
268 void mtk_wed_mcu_rx_event(struct mtk_wed_wo *wo, struct sk_buff *skb);
269 void mtk_wed_mcu_rx_unsolicited_event(struct mtk_wed_wo *wo,
270 struct sk_buff *skb);
271 int mtk_wed_mcu_send_msg(struct mtk_wed_wo *wo, int id, int cmd,
272 const void *data, int len, bool wait_resp);
273 int mtk_wed_mcu_msg_update(struct mtk_wed_device *dev, int id, void *data,
274 int len);
275 int mtk_wed_mcu_init(struct mtk_wed_wo *wo);
276 int mtk_wed_wo_init(struct mtk_wed_hw *hw);
277 void mtk_wed_wo_deinit(struct mtk_wed_hw *hw);
278 int mtk_wed_wo_queue_tx_skb(struct mtk_wed_wo *dev, struct mtk_wed_wo_queue *q,
279 struct sk_buff *skb);
280
281 #endif /* __MTK_WED_WO_H */
282