52 static void validate_firmware_response(struct kim_data_s *kim_gdata)  in validate_firmware_response()  argument
54 	struct sk_buff *skb = kim_gdata->rx_skb;  in validate_firmware_response()
66 		memcpy(kim_gdata->resp_buffer,  in validate_firmware_response()
67 				kim_gdata->rx_skb->data,  in validate_firmware_response()
68 				kim_gdata->rx_skb->len);  in validate_firmware_response()
69 		kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in validate_firmware_response()
70 		kim_gdata->rx_skb = NULL;  in validate_firmware_response()
71 		kim_gdata->rx_count = 0;  in validate_firmware_response()
79 	complete_all(&kim_gdata->kim_rcvd);  in validate_firmware_response()
87 static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len)  in kim_check_data_len()  argument
89 	register int room = skb_tailroom(kim_gdata->rx_skb);  in kim_check_data_len()
94 		validate_firmware_response(kim_gdata);  in kim_check_data_len()
102 		kfree_skb(kim_gdata->rx_skb);  in kim_check_data_len()
108 		kim_gdata->rx_state = ST_W4_DATA;  in kim_check_data_len()
109 		kim_gdata->rx_count = len;  in kim_check_data_len()
117 	kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_check_data_len()
118 	kim_gdata->rx_skb = NULL;  in kim_check_data_len()
119 	kim_gdata->rx_count = 0;  in kim_check_data_len()
130 static void kim_int_recv(struct kim_data_s *kim_gdata, const u8 *ptr,  in kim_int_recv()  argument
139 		if (kim_gdata->rx_count) {  in kim_int_recv()
140 			len = min_t(unsigned int, kim_gdata->rx_count, count);  in kim_int_recv()
141 			skb_put_data(kim_gdata->rx_skb, ptr, len);  in kim_int_recv()
142 			kim_gdata->rx_count -= len;  in kim_int_recv()
146 			if (kim_gdata->rx_count)  in kim_int_recv()
150 			switch (kim_gdata->rx_state) {  in kim_int_recv()
154 				validate_firmware_response(kim_gdata);  in kim_int_recv()
155 				kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
156 				kim_gdata->rx_skb = NULL;  in kim_int_recv()
161 				(unsigned char *)&kim_gdata->rx_skb->data[1];  in kim_int_recv()
163 				kim_check_data_len(kim_gdata, *plen);  in kim_int_recv()
170 			kim_gdata->rx_state = ST_W4_HEADER;  in kim_int_recv()
171 			kim_gdata->rx_count = 2;  in kim_int_recv()
181 		kim_gdata->rx_skb =  in kim_int_recv()
183 		if (!kim_gdata->rx_skb) {  in kim_int_recv()
185 			kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
186 			kim_gdata->rx_count = 0;  in kim_int_recv()
189 		skb_reserve(kim_gdata->rx_skb, 8);  in kim_int_recv()
190 		kim_gdata->rx_skb->cb[0] = 4;  in kim_int_recv()
191 		kim_gdata->rx_skb->cb[1] = 0;  in kim_int_recv()
197 static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)  in read_local_version()  argument
205 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
206 	if (4 != st_int_write(kim_gdata->core_data, read_ver_cmd, 4)) {  in read_local_version()
212 		&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME));  in read_local_version()
217 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
224 		MAKEWORD(kim_gdata->resp_buffer[12],  in read_local_version()
225 				kim_gdata->resp_buffer[13]);  in read_local_version()
237 	kim_gdata->version.full = version;  in read_local_version()
238 	kim_gdata->version.chip = chip;  in read_local_version()
239 	kim_gdata->version.maj_ver = maj_ver;  in read_local_version()
240 	kim_gdata->version.min_ver = min_ver;  in read_local_version()
271 static long download_firmware(struct kim_data_s *kim_gdata)  in download_firmware()  argument
282 	err = read_local_version(kim_gdata, bts_scr_name);  in download_firmware()
288 	    request_firmware(&kim_gdata->fw_entry, bts_scr_name,  in download_firmware()
289 			     &kim_gdata->kim_pdev->dev);  in download_firmware()
290 	if (unlikely((err != 0) || (kim_gdata->fw_entry->data == NULL) ||  in download_firmware()
291 		     (kim_gdata->fw_entry->size == 0))) {  in download_firmware()
296 	ptr = (void *)kim_gdata->fw_entry->data;  in download_firmware()
297 	len = kim_gdata->fw_entry->size;  in download_firmware()
334 					st_get_uart_wr_room(kim_gdata->core_data);  in download_firmware()
338 					release_firmware(kim_gdata->fw_entry);  in download_firmware()
349 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
356 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
363 			err = st_int_write(kim_gdata->core_data,  in download_firmware()
367 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
378 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
385 					&kim_gdata->kim_rcvd,  in download_firmware()
390 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
393 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
409 	release_firmware(kim_gdata->fw_entry);  in download_firmware()
423 	struct kim_data_s	*kim_gdata = st_gdata->kim_data;  in st_kim_recv()  local
429 	kim_int_recv(kim_gdata, data, count);  in st_kim_recv()
439 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_complete()  local
440 	complete(&kim_gdata->ldisc_installed);  in st_kim_complete()
455 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_start()  local
458 	pdata = kim_gdata->kim_pdev->dev.platform_data;  in st_kim_start()
463 			pdata->chip_enable(kim_gdata);  in st_kim_start()
466 		gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_start()
468 		gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_start()
471 		reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_start()
473 		kim_gdata->ldisc_install = 1;  in st_kim_start()
475 		sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,  in st_kim_start()
479 			&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_start()
486 			err = st_kim_stop(kim_gdata);  in st_kim_start()
491 			err = download_firmware(kim_gdata);  in st_kim_start()
498 				err = st_kim_stop(kim_gdata);  in st_kim_start()
521 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_stop()  local
523 		kim_gdata->kim_pdev->dev.platform_data;  in st_kim_stop()
524 	struct tty_struct	*tty = kim_gdata->core_data->tty;  in st_kim_stop()
526 	reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_stop()
536 	kim_gdata->ldisc_install = 0;  in st_kim_stop()
537 	sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install");  in st_kim_stop()
541 		&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_stop()
548 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
550 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_stop()
552 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
556 		pdata->chip_disable(kim_gdata);  in st_kim_stop()
566 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in version_show()  local
567 	seq_printf(s, "%04X %d.%d.%d\n", kim_gdata->version.full,  in version_show()
568 			kim_gdata->version.chip, kim_gdata->version.maj_ver,  in version_show()
569 			kim_gdata->version.min_ver);  in version_show()
575 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in list_show()  local
576 	kim_st_list_protocols(kim_gdata->core_data, s);  in list_show()
673 	struct kim_data_s	*kim_gdata;  in st_kim_ref()  local
678 	kim_gdata = platform_get_drvdata(pdev);  in st_kim_ref()
679 	if (!kim_gdata)  in st_kim_ref()
682 	*core_data = kim_gdata->core_data;  in st_kim_ref()
700 	struct kim_data_s	*kim_gdata;  in kim_probe()  local
712 	kim_gdata = kzalloc(sizeof(struct kim_data_s), GFP_KERNEL);  in kim_probe()
713 	if (!kim_gdata) {  in kim_probe()
717 	platform_set_drvdata(pdev, kim_gdata);  in kim_probe()
719 	err = st_core_init(&kim_gdata->core_data);  in kim_probe()
726 	kim_gdata->core_data->kim_data = kim_gdata;  in kim_probe()
729 	kim_gdata->nshutdown = pdata->nshutdown_gpio;  in kim_probe()
730 	err = gpio_request(kim_gdata->nshutdown, "kim");  in kim_probe()
732 		pr_err(" gpio %d request failed ", kim_gdata->nshutdown);  in kim_probe()
737 	err = gpio_direction_output(kim_gdata->nshutdown, 0);  in kim_probe()
739 		pr_err(" unable to configure gpio %d", kim_gdata->nshutdown);  in kim_probe()
743 	kim_gdata->kim_pdev = pdev;  in kim_probe()
744 	init_completion(&kim_gdata->kim_rcvd);  in kim_probe()
745 	init_completion(&kim_gdata->ldisc_installed);  in kim_probe()
754 	strncpy(kim_gdata->dev_name, pdata->dev_name, UART_DEV_NAME_LEN);  in kim_probe()
755 	kim_gdata->flow_cntrl = pdata->flow_cntrl;  in kim_probe()
756 	kim_gdata->baud_rate = pdata->baud_rate;  in kim_probe()
762 				kim_gdata, &version_fops);  in kim_probe()
764 				kim_gdata, &list_fops);  in kim_probe()
768 	st_core_exit(kim_gdata->core_data);  in kim_probe()
771 	kfree(kim_gdata);  in kim_probe()
780 	struct kim_data_s	*kim_gdata;  in kim_remove()  local
782 	kim_gdata = platform_get_drvdata(pdev);  in kim_remove()
795 	kim_gdata->kim_pdev = NULL;  in kim_remove()
796 	st_core_exit(kim_gdata->core_data);  in kim_remove()
798 	kfree(kim_gdata);  in kim_remove()
799 	kim_gdata = NULL;  in kim_remove()