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,  in kim_int_recv()  argument
146 		if (kim_gdata->rx_count) {  in kim_int_recv()
147 			len = min_t(unsigned int, kim_gdata->rx_count, count);  in kim_int_recv()
148 			skb_put_data(kim_gdata->rx_skb, ptr, len);  in kim_int_recv()
149 			kim_gdata->rx_count -= len;  in kim_int_recv()
153 			if (kim_gdata->rx_count)  in kim_int_recv()
157 			switch (kim_gdata->rx_state) {  in kim_int_recv()
161 				validate_firmware_response(kim_gdata);  in kim_int_recv()
162 				kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
163 				kim_gdata->rx_skb = NULL;  in kim_int_recv()
168 				(unsigned char *)&kim_gdata->rx_skb->data[1];  in kim_int_recv()
170 				kim_check_data_len(kim_gdata, *plen);  in kim_int_recv()
177 			kim_gdata->rx_state = ST_W4_HEADER;  in kim_int_recv()
178 			kim_gdata->rx_count = 2;  in kim_int_recv()
188 		kim_gdata->rx_skb =  in kim_int_recv()
190 		if (!kim_gdata->rx_skb) {  in kim_int_recv()
192 			kim_gdata->rx_state = ST_W4_PACKET_TYPE;  in kim_int_recv()
193 			kim_gdata->rx_count = 0;  in kim_int_recv()
196 		skb_reserve(kim_gdata->rx_skb, 8);  in kim_int_recv()
197 		kim_gdata->rx_skb->cb[0] = 4;  in kim_int_recv()
198 		kim_gdata->rx_skb->cb[1] = 0;  in kim_int_recv()
204 static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)  in read_local_version()  argument
212 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
213 	if (4 != st_int_write(kim_gdata->core_data, read_ver_cmd, 4)) {  in read_local_version()
219 		&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME));  in read_local_version()
224 	reinit_completion(&kim_gdata->kim_rcvd);  in read_local_version()
231 		MAKEWORD(kim_gdata->resp_buffer[12],  in read_local_version()
232 				kim_gdata->resp_buffer[13]);  in read_local_version()
244 	kim_gdata->version.full = version;  in read_local_version()
245 	kim_gdata->version.chip = chip;  in read_local_version()
246 	kim_gdata->version.maj_ver = maj_ver;  in read_local_version()
247 	kim_gdata->version.min_ver = min_ver;  in read_local_version()
278 static long download_firmware(struct kim_data_s *kim_gdata)  in download_firmware()  argument
289 	err = read_local_version(kim_gdata, bts_scr_name);  in download_firmware()
295 	    request_firmware(&kim_gdata->fw_entry, bts_scr_name,  in download_firmware()
296 			     &kim_gdata->kim_pdev->dev);  in download_firmware()
297 	if (unlikely((err != 0) || (kim_gdata->fw_entry->data == NULL) ||  in download_firmware()
298 		     (kim_gdata->fw_entry->size == 0))) {  in download_firmware()
303 	ptr = (void *)kim_gdata->fw_entry->data;  in download_firmware()
304 	len = kim_gdata->fw_entry->size;  in download_firmware()
341 					st_get_uart_wr_room(kim_gdata->core_data);  in download_firmware()
345 					release_firmware(kim_gdata->fw_entry);  in download_firmware()
356 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
363 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
370 			err = st_int_write(kim_gdata->core_data,  in download_firmware()
374 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
385 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
392 					&kim_gdata->kim_rcvd,  in download_firmware()
397 				release_firmware(kim_gdata->fw_entry);  in download_firmware()
400 			reinit_completion(&kim_gdata->kim_rcvd);  in download_firmware()
416 	release_firmware(kim_gdata->fw_entry);  in download_firmware()
430 	struct kim_data_s	*kim_gdata = st_gdata->kim_data;  in st_kim_recv()  local
436 	kim_int_recv(kim_gdata, data, count);  in st_kim_recv()
446 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_complete()  local
447 	complete(&kim_gdata->ldisc_installed);  in st_kim_complete()
462 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_start()  local
465 	pdata = kim_gdata->kim_pdev->dev.platform_data;  in st_kim_start()
470 			pdata->chip_enable(kim_gdata);  in st_kim_start()
473 		gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_start()
475 		gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_start()
478 		reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_start()
480 		kim_gdata->ldisc_install = 1;  in st_kim_start()
482 		sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,  in st_kim_start()
486 			&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_start()
493 			err = st_kim_stop(kim_gdata);  in st_kim_start()
498 			err = download_firmware(kim_gdata);  in st_kim_start()
505 				err = st_kim_stop(kim_gdata);  in st_kim_start()
528 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;  in st_kim_stop()  local
530 		kim_gdata->kim_pdev->dev.platform_data;  in st_kim_stop()
531 	struct tty_struct	*tty = kim_gdata->core_data->tty;  in st_kim_stop()
533 	reinit_completion(&kim_gdata->ldisc_installed);  in st_kim_stop()
543 	kim_gdata->ldisc_install = 0;  in st_kim_stop()
544 	sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install");  in st_kim_stop()
548 		&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));  in st_kim_stop()
555 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
557 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_HIGH);  in st_kim_stop()
559 	gpio_set_value_cansleep(kim_gdata->nshutdown, GPIO_LOW);  in st_kim_stop()
563 		pdata->chip_disable(kim_gdata);  in st_kim_stop()
573 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in version_show()  local
574 	seq_printf(s, "%04X %d.%d.%d\n", kim_gdata->version.full,  in version_show()
575 			kim_gdata->version.chip, kim_gdata->version.maj_ver,  in version_show()
576 			kim_gdata->version.min_ver);  in version_show()
582 	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;  in list_show()  local
583 	kim_st_list_protocols(kim_gdata->core_data, s);  in list_show()
680 	struct kim_data_s	*kim_gdata;  in st_kim_ref()  local
685 	kim_gdata = platform_get_drvdata(pdev);  in st_kim_ref()
686 	if (!kim_gdata)  in st_kim_ref()
689 	*core_data = kim_gdata->core_data;  in st_kim_ref()
707 	struct kim_data_s	*kim_gdata;  in kim_probe()  local
719 	kim_gdata = kzalloc(sizeof(struct kim_data_s), GFP_KERNEL);  in kim_probe()
720 	if (!kim_gdata) {  in kim_probe()
724 	platform_set_drvdata(pdev, kim_gdata);  in kim_probe()
726 	err = st_core_init(&kim_gdata->core_data);  in kim_probe()
733 	kim_gdata->core_data->kim_data = kim_gdata;  in kim_probe()
736 	kim_gdata->nshutdown = pdata->nshutdown_gpio;  in kim_probe()
737 	err = gpio_request(kim_gdata->nshutdown, "kim");  in kim_probe()
739 		pr_err(" gpio %d request failed ", kim_gdata->nshutdown);  in kim_probe()
744 	err = gpio_direction_output(kim_gdata->nshutdown, 0);  in kim_probe()
746 		pr_err(" unable to configure gpio %d", kim_gdata->nshutdown);  in kim_probe()
750 	kim_gdata->kim_pdev = pdev;  in kim_probe()
751 	init_completion(&kim_gdata->kim_rcvd);  in kim_probe()
752 	init_completion(&kim_gdata->ldisc_installed);  in kim_probe()
761 	strncpy(kim_gdata->dev_name, pdata->dev_name, UART_DEV_NAME_LEN);  in kim_probe()
762 	kim_gdata->flow_cntrl = pdata->flow_cntrl;  in kim_probe()
763 	kim_gdata->baud_rate = pdata->baud_rate;  in kim_probe()
769 				kim_gdata, &version_fops);  in kim_probe()
771 				kim_gdata, &list_fops);  in kim_probe()
775 	st_core_exit(kim_gdata->core_data);  in kim_probe()
778 	kfree(kim_gdata);  in kim_probe()
787 	struct kim_data_s	*kim_gdata;  in kim_remove()  local
789 	kim_gdata = platform_get_drvdata(pdev);  in kim_remove()
802 	kim_gdata->kim_pdev = NULL;  in kim_remove()
803 	st_core_exit(kim_gdata->core_data);  in kim_remove()
805 	kfree(kim_gdata);  in kim_remove()
806 	kim_gdata = NULL;  in kim_remove()