70 static void validate_firmware_response(struct kim_data_s *kim_gdata)  in validate_firmware_response()  argument
72 	struct sk_buff *skb = kim_gdata->rx_skb;  in validate_firmware_response()
83 		memcpy(kim_gdata->resp_buffer,  in validate_firmware_response()
84 				kim_gdata->rx_skb->data,  in validate_firmware_response()
85 				kim_gdata->rx_skb->len);  in validate_firmware_response()
86 		complete_all(&kim_gdata->kim_rcvd);  in validate_firmware_response()
87 		kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in validate_firmware_response()
88 		kim_gdata->rx_skb = NULL;  in validate_firmware_response()
89 		kim_gdata->rx_count = 0;  in validate_firmware_response()
97 	complete_all(&kim_gdata->kim_rcvd);  in validate_firmware_response()
104 static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len)  in kim_check_data_len()  argument
106 	register int room = skb_tailroom(kim_gdata->rx_skb);  in kim_check_data_len()
111 		validate_firmware_response(kim_gdata);  in kim_check_data_len()
118 		kfree_skb(kim_gdata->rx_skb);  in kim_check_data_len()
123 		kim_gdata->rx_state = ST_W4_DATA;  in kim_check_data_len()
124 		kim_gdata->rx_count = len;  in kim_check_data_len()
130 	kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_check_data_len()
131 	kim_gdata->rx_skb = NULL;  in kim_check_data_len()
132 	kim_gdata->rx_count = 0;  in kim_check_data_len()
143 static void kim_int_recv(struct kim_data_s *kim_gdata,  in kim_int_recv()  argument
159 		if (kim_gdata->rx_count) {  in kim_int_recv()
160 			len = min_t(unsigned int, kim_gdata->rx_count, count);  in kim_int_recv()
161 			memcpy(skb_put(kim_gdata->rx_skb, len), ptr, len);  in kim_int_recv()
162 			kim_gdata->rx_count -= len;  in kim_int_recv()
166 			if (kim_gdata->rx_count)  in kim_int_recv()
170 			switch (kim_gdata->rx_state) {  in kim_int_recv()
174 				validate_firmware_response(kim_gdata);  in kim_int_recv()
175 				kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
176 				kim_gdata->rx_skb = NULL;  in kim_int_recv()
181 				(unsigned char *)&kim_gdata->rx_skb->data[1];  in kim_int_recv()
183 				kim_check_data_len(kim_gdata, *plen);  in kim_int_recv()
190 			kim_gdata->rx_state = ST_W4_HEADER;  in kim_int_recv()
191 			kim_gdata->rx_count = 2;  in kim_int_recv()
202 		kim_gdata->rx_skb =  in kim_int_recv()
204 		if (!kim_gdata->rx_skb) {  in kim_int_recv()
206 			kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
207 			kim_gdata->rx_count = 0;  in kim_int_recv()
210 		skb_reserve(kim_gdata->rx_skb, 8);  in kim_int_recv()
211 		kim_gdata->rx_skb->cb[0] = 4;  in kim_int_recv()
212 		kim_gdata->rx_skb->cb[1] = 0;  in kim_int_recv()
218 static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)  in read_local_version()  argument
226 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
227 	if (4 != st_int_write(kim_gdata->core_data, read_ver_cmd, 4)) {  in read_local_version()
233 		&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME));  in read_local_version()
238 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
244 		MAKEWORD(kim_gdata->resp_buffer[12],  in read_local_version()
245 				kim_gdata->resp_buffer[13]);  in read_local_version()
257 	kim_gdata->version.full = version;  in read_local_version()
258 	kim_gdata->version.chip = chip;  in read_local_version()
259 	kim_gdata->version.maj_ver = maj_ver;  in read_local_version()
260 	kim_gdata->version.min_ver = min_ver;  in read_local_version()
291 static long download_firmware(struct kim_data_s *kim_gdata)  in download_firmware()  argument
302 	err = read_local_version(kim_gdata, bts_scr_name);  in download_firmware()
308 	    request_firmware(&kim_gdata->fw_entry, bts_scr_name,  in download_firmware()
309 			     &kim_gdata->kim_pdev->dev);  in download_firmware()
310 	if (unlikely((err != 0) || (kim_gdata->fw_entry->data == NULL) ||  in download_firmware()
311 		     (kim_gdata->fw_entry->size == 0))) {  in download_firmware()
316 	ptr = (void *)kim_gdata->fw_entry->data;  in download_firmware()
317 	len = kim_gdata->fw_entry->size;  in download_firmware()
351 					st_get_uart_wr_room(kim_gdata->core_data);  in download_firmware()
355 					release_firmware(kim_gdata->fw_entry);  in download_firmware()
366 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
372 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
379 			err = st_int_write(kim_gdata->core_data,  in download_firmware()
383 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
394 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
401 					&kim_gdata->kim_rcvd,  in download_firmware()
406 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
409 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
425 	release_firmware(kim_gdata->fw_entry);  in download_firmware()
439 	struct kim_data_s	*kim_gdata = st_gdata->kim_data;  in st_kim_recv()  local
444 	kim_int_recv(kim_gdata, data, count);  in st_kim_recv()
453 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_complete()  local
454 	complete(&kim_gdata->ldisc_installed);  in st_kim_complete()
469 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_start()  local
472 	if (kim_gdata->kim_pdev->dev.of_node) {  in st_kim_start()
476 		pdata = kim_gdata->kim_pdev->dev.platform_data;  in st_kim_start()
482 			pdata->chip_enable(kim_gdata);  in st_kim_start()
485 		gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_start()
487 		gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_start()
490 		reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_start()
492 		kim_gdata->ldisc_install = 1;  in st_kim_start()
494 		sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,  in st_kim_start()
498 			&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_start()
503 			err = st_kim_stop(kim_gdata);  in st_kim_start()
508 			err = download_firmware(kim_gdata);  in st_kim_start()
513 				err = st_kim_stop(kim_gdata);  in st_kim_start()
536 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_stop()  local
538 	struct tty_struct	*tty = kim_gdata->core_data->tty;  in st_kim_stop()
540 	reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_stop()
542 	if (kim_gdata->kim_pdev->dev.of_node) {  in st_kim_stop()
546 		pdata = kim_gdata->kim_pdev->dev.platform_data;  in st_kim_stop()
557 	kim_gdata->ldisc_install = 0;  in st_kim_stop()
558 	sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install");  in st_kim_stop()
562 		&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_stop()
569 	gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
571 	gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_stop()
573 	gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
577 		pdata->chip_disable(kim_gdata);  in st_kim_stop()
587 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in show_version()  local
588 	seq_printf(s, "%04X %d.%d.%d\n", kim_gdata->version.full,  in show_version()
589 			kim_gdata->version.chip, kim_gdata->version.maj_ver,  in show_version()
590 			kim_gdata->version.min_ver);  in show_version()
596 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in show_list()  local
597 	kim_st_list_protocols(kim_gdata->core_data, s);  in show_list()
694 	struct kim_data_s	*kim_gdata;  in st_kim_ref()  local
699 	kim_gdata = platform_get_drvdata(pdev);  in st_kim_ref()
700 	if (!kim_gdata)  in st_kim_ref()
703 	*core_data = kim_gdata->core_data;  in st_kim_ref()
773 	struct kim_data_s	*kim_gdata;  in kim_probe()  local
795 	kim_gdata = kzalloc(sizeof(struct kim_data_s), GFP_ATOMIC);  in kim_probe()
796 	if (!kim_gdata) {  in kim_probe()
800 	platform_set_drvdata(pdev, kim_gdata);  in kim_probe()
802 	err = st_core_init(&kim_gdata->core_data);  in kim_probe()
809 	kim_gdata->core_data->kim_data = kim_gdata;  in kim_probe()
812 	kim_gdata->nshutdown = pdata->nshutdown_gpio;  in kim_probe()
813 	err = gpio_request(kim_gdata->nshutdown, "kim");  in kim_probe()
815 		pr_err(" gpio %d request failed ", kim_gdata->nshutdown);  in kim_probe()
820 	err = gpio_direction_output(kim_gdata->nshutdown, 0);  in kim_probe()
822 		pr_err(" unable to configure gpio %d", kim_gdata->nshutdown);  in kim_probe()
827 	kim_gdata->kim_pdev = pdev;  in kim_probe()
828 	init_completion(&kim_gdata->kim_rcvd);  in kim_probe()
829 	init_completion(&kim_gdata->ldisc_installed);  in kim_probe()
838 	strncpy(kim_gdata->dev_name, pdata->dev_name, UART_DEV_NAME_LEN);  in kim_probe()
839 	kim_gdata->flow_cntrl = pdata->flow_cntrl;  in kim_probe()
840 	kim_gdata->baud_rate = pdata->baud_rate;  in kim_probe()
850 				kim_gdata, &version_debugfs_fops);  in kim_probe()
852 				kim_gdata, &list_debugfs_fops);  in kim_probe()
856 	st_core_exit(kim_gdata->core_data);  in kim_probe()
859 	kfree(kim_gdata);  in kim_probe()
868 	struct kim_data_s	*kim_gdata;  in kim_remove()  local
877 	kim_gdata = platform_get_drvdata(pdev);  in kim_remove()
889 	kim_gdata->kim_pdev = NULL;  in kim_remove()
890 	st_core_exit(kim_gdata->core_data);  in kim_remove()
892 	kfree(kim_gdata);  in kim_remove()
893 	kim_gdata = NULL;  in kim_remove()