1 /*-
2  * Copyright (c) 2016-2017 Ilya Bakulin
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
34  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
79 …() which is defined as probe function in struct sdio_driver. http://lxr.free-electrons.com/source/…
83 …* ops_sdio_probe() then calls brcmf_sdio_probe() -- at this point it has filled in sdiodev struct …
85 …ts F1 block size to 64 and F2 to 512, not consulting the values stored in SDIO CCCR  / FBR registe…
89 …alls brcmf_sdio_probe() http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm802…
91  * Here high-level workqueues and sg tables are allocated.
96  * Then turns off PLL:  byte-write BRCMF_INIT_CLKCTL1 (0x28) ->  SBSDIO_FUNC1_CHIPCLKCSR (0x1000E)
100 …* http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c#L10…
102  *  - brcmf_sdio_buscoreprep(): force clock to ALPAvail req only:
103  *    SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_ALP_AVAIL_REQ -> SBSDIO_FUNC1_CHIPCLKCSR
106  *    SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_FORCE_ALP (0x21)-> SBSDIO_FUNC1_CHIPCLKCSR
107  * Disaable SDIO pullups:
108  * byte 0 -> SBSDIO_FUNC1_SDIOPULLUP (0x0001000f)
111  * http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c#L908
120  * http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c#L700
124 …* http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c#L10…
125  *  Bus-specific setup code is NOP for SDIO.
131 …* http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c#L36…
133  * Set card control so an SDIO card reset does a WLAN backplane reset
137 …*** Finished reading at http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm802…
140 …* http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c#L…
141  * The address to read from is written to three byte-sized registers of F1:
142  *  - SBSDIO_FUNC1_SBADDRLOW  0x1000A
143  *  - SBSDIO_FUNC1_SBADDRMID  0x1000B
144  *  - SBSDIO_FUNC1_SBADDRHIGH 0x1000C
145 …* If this is 32-bit read , a flag is set. The address is ANDed with SBSDIO_SB_OFT_ADDR_MASK which …
147 …* http://lxr.free-electrons.com/source/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c#L…
150  * 1-byte IO is done with CMD52, more is read with CMD53 with address increment (not FIFO mode).
151  * http://lxr.free-electrons.com/source/drivers/mmc/core/sdio_io.c#L458
157 /* BRCM-specific functions */
193 	bus->state = state;  in brcmf_bus_change_state()
199 	if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM ||  in brcmf_sdiod_change_state()
200 	    state == sdiodev->state)  in brcmf_sdiod_change_state()
203 	//brcmf_dbg(TRACE, "%d -> %d\n", sdiodev->state, state);  in brcmf_sdiod_change_state()
204 	switch (sdiodev->state) {  in brcmf_sdiod_change_state()
207 		brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_DOWN);  in brcmf_sdiod_change_state()
212 			brcmf_bus_change_state(sdiodev->bus_if, BRCMF_BUS_UP);  in brcmf_sdiod_change_state()
217 	sdiodev->state = state;  in brcmf_sdiod_change_state()
241 	int ret = -EINVAL;  in brcmf_sdiod_request_data()
243 	brcmf_dbg(SDIO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",  in brcmf_sdiod_request_data()
248 		return -EINVAL;  in brcmf_sdiod_request_data()
249 	func = sdiodev->func[fn];  in brcmf_sdiod_request_data()
284 		brcmf_dbg(SDIO, "failed to %s data F%d@0x%05x, err: %d\n",  in brcmf_sdiod_request_data()
296 	if (bar0 != sdiodev->sbwad) {  in brcmf_sdiod_addrprep()
301 		sdiodev->sbwad = bar0;  in brcmf_sdiod_addrprep()
317 	if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM)  in brcmf_sdiod_regrw_helper()
318 		return -ENOMEDIUM;  in brcmf_sdiod_regrw_helper()
339 	} while (ret != 0 && ret != -ENOMEDIUM &&  in brcmf_sdiod_regrw_helper()
342 	if (ret == -ENOMEDIUM)  in brcmf_sdiod_regrw_helper()
354 			brcmf_dbg(SDIO, "failed to %s data F%d@0x%05x, err: %d\n",  in brcmf_sdiod_regrw_helper()
366 	if (sdiodev->state == BRCMF_SDIOD_NOMEDIUM)  in brcmf_sdiod_set_sbaddr_window()
367 		return -ENOMEDIUM;  in brcmf_sdiod_set_sbaddr_window()
392 	brcmf_dbg(SDIO, "addr:0x%08x\n", addr);  in brcmf_sdiod_regrl()
398 	brcmf_dbg(SDIO, "data:0x%08x\n", data);  in brcmf_sdiod_regrl()
425 	const char fw_path[] = "/home/kibab/repos/fbsd-bbb/brcm-firmware/brcmfmac4330-sdio.bin";  in mmap_fw()
443 	printf("sdiotool -u <pass_dev_unit>\n");  in usage()
453  * TODO: We should add SDIO card info about at least number of
466 	sdio_func_read_cis(dev, 0, cis_addr, &ci->f[0]);  in get_sdio_card_info()
468 	       ci->f[0].man_id, ci->f[0].prod_id, ci->f[0].max_block_size);  in get_sdio_card_info()
474 		sdio_func_read_cis(dev, i, cis_addr, &ci->f[i]);  in get_sdio_card_info()
476 		       i, ci->f[i].man_id, ci->f[i].prod_id, ci->f[i].max_block_size);  in get_sdio_card_info()
477 		if (ci->f[i].man_id == 0) {  in get_sdio_card_info()
481 		ci->num_funcs++;  in get_sdio_card_info()
498 	while ((ch = getopt(argc, argv, "fu:")) != -1) {  in main()
511 	argc -= optind;  in main()
519 	/* For now, everything non-broadcom is out of the question */  in main()
538 	brcmf_dev.func[0]->dev = brcmf_dev.func[1]->dev  in main()
539 		= brcmf_dev.func[2]->dev = cam_dev;  in main()
540 	brcmf_dev.func[0]->num = 0;  in main()
541 	brcmf_dev.func[1]->num = 1;  in main()
542 	brcmf_dev.func[2]->num = 2;  in main()