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@@ -1,241 +0,0 @@
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-/*
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- * Copyright (C) 2007 Openmoko, Inc.
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- * Author: Harald Welte <[email protected]>
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- *
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- * Smedia Glamo GPIO based SPI driver
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This driver currently only implements a minimum subset of the hardware
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- * features, esp. those features that are required to drive the jbt6k74
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- * LCM controller asic in the TD028TTEC1 LCM.
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- *
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-*/
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-
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-#define DEBUG
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-#if 0
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-#include <linux/kernel.h>
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-#include <linux/init.h>
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-#include <linux/delay.h>
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-#include <linux/device.h>
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-#include <linux/spinlock.h>
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-#include <linux/workqueue.h>
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-#include <linux/platform_device.h>
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-
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-#include <linux/spi/spi.h>
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-#include <linux/spi/spi_bitbang.h>
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-#include <linux/spi/glamo.h>
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-
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-#include <linux/glamofb.h>
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-
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-#include <mach/hardware.h>
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-
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-#include "glamo-core.h"
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-#include "glamo-regs.h"
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-
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-struct glamo_spi {
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- struct spi_bitbang bitbang;
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- struct spi_master *master;
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- struct glamo_spi_info *info;
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- struct device *dev;
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-};
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-
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-static inline struct glamo_spi *to_gs(struct spi_device *spi)
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-{
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- return spi->controller_data;
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-}
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-
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-static int glamo_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
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-{
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- unsigned int bpw;
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-
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- bpw = t ? t->bits_per_word : spi->bits_per_word;
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-
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- if (bpw != 9 && bpw != 8) {
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- dev_err(&spi->dev, "invalid bits-per-word (%d)\n", bpw);
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- return -EINVAL;
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- }
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-
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- return 0;
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-}
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-
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-static void glamo_spi_chipsel(struct spi_device *spi, int value)
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-{
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-#if 0
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- struct glamo_spi *gs = to_gs(spi);
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-
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- dev_dbg(&spi->dev, "chipsel %d: spi=%p, gs=%p, info=%p, handle=%p\n",
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- value, spi, gs, gs->info, gs->info->glamofb_handle);
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-
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- glamofb_cmd_mode(gs->info->glamofb_handle, value);
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-#endif
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-}
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-
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-static int glamo_spi_txrx(struct spi_device *spi, struct spi_transfer *t)
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-{
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- struct glamo_spi *gs = to_gs(spi);
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- const u_int16_t *ui16 = (const u_int16_t *) t->tx_buf;
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- u_int16_t nine_bits;
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- int i;
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-
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- dev_dbg(&spi->dev, "txrx: tx %p, rx %p, bpw %d, len %d\n",
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- t->tx_buf, t->rx_buf, t->bits_per_word, t->len);
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-
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- if (spi->bits_per_word == 9)
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- nine_bits = (1 << 9);
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- else
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- nine_bits = 0;
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-
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- if (t->len > 3 * sizeof(u_int16_t)) {
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- dev_err(&spi->dev, "this driver doesn't support "
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- "%u sized xfers\n", t->len);
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- return -EINVAL;
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- }
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-
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- for (i = 0; i < t->len/sizeof(u_int16_t); i++) {
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- /* actually transfer the data */
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-#if 1
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- glamofb_cmd_write(gs->info->glamofb_handle,
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- GLAMO_LCD_CMD_TYPE_SERIAL | nine_bits |
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- (1 << 10) | (1 << 11) | (ui16[i] & 0x1ff));
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-#endif
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- /* FIXME: fire ?!? */
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- if (i == 0 && (ui16[i] & 0x1ff) == 0x29) {
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- dev_dbg(&spi->dev, "leaving command mode\n");
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- glamofb_cmd_mode(gs->info->glamofb_handle, 0);
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- }
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- }
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-
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- return t->len;
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-}
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-
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-static int glamo_spi_setup(struct spi_device *spi)
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-{
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- int ret;
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-
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- if (!spi->bits_per_word)
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- spi->bits_per_word = 9;
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-
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- /* FIXME: hardware can do this */
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- if (spi->mode & SPI_LSB_FIRST)
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- return -EINVAL;
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-
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- ret = glamo_spi_setupxfer(spi, NULL);
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- if (ret < 0) {
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- dev_err(&spi->dev, "setupxfer returned %d\n", ret);
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- return ret;
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- }
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-
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- dev_dbg(&spi->dev, "%s: mode %d, %u bpw\n",
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- __FUNCTION__, spi->mode, spi->bits_per_word);
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-
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- return 0;
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-}
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-
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-static int glamo_spi_probe(struct platform_device *pdev)
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-{
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- struct spi_master *master;
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- struct glamo_spi *sp;
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- int ret;
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- int i;
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-
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- master = spi_alloc_master(&pdev->dev, sizeof(struct glamo_spi));
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- if (master == NULL) {
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- dev_err(&pdev->dev, "failed to allocate spi master\n");
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- ret = -ENOMEM;
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- goto err;
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- }
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-
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- sp = spi_master_get_devdata(master);
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- memset(sp, 0, sizeof(struct glamo_spi));
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-
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- sp->master = spi_master_get(master);
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- sp->info = pdev->dev.platform_data;
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- if (!sp->info) {
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- dev_err(&pdev->dev, "can't operate without platform data\n");
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- ret = -EIO;
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- goto err_no_pdev;
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- }
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- dev_dbg(&pdev->dev, "sp->info(pdata) = %p\n", sp->info);
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-
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- sp->dev = &pdev->dev;
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-
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- platform_set_drvdata(pdev, sp);
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-
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- sp->bitbang.master = sp->master;
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- sp->bitbang.setup_transfer = glamo_spi_setupxfer;
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- sp->bitbang.chipselect = glamo_spi_chipsel;
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- sp->bitbang.txrx_bufs = glamo_spi_txrx;
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- sp->bitbang.master->setup = glamo_spi_setup;
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-
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- ret = spi_bitbang_start(&sp->bitbang);
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- if (ret)
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- goto err_no_bitbang;
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-
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- /* register the chips to go with the board */
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-
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- glamofb_cmd_mode(sp->info->glamofb_handle, 1);
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-
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- for (i = 0; i < sp->info->board_size; i++) {
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- dev_info(&pdev->dev, "registering %p: %s\n",
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- &sp->info->board_info[i],
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- sp->info->board_info[i].modalias);
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-
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- sp->info->board_info[i].controller_data = sp;
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- spi_new_device(master, sp->info->board_info + i);
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- }
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-
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- return 0;
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-
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-err_no_bitbang:
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- platform_set_drvdata(pdev, NULL);
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-err_no_pdev:
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- spi_master_put(sp->bitbang.master);
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-err:
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- return ret;
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-
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-}
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-
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-static int glamo_spi_remove(struct platform_device *pdev)
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-{
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- struct glamo_spi *sp = platform_get_drvdata(pdev);
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-
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- spi_bitbang_stop(&sp->bitbang);
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- spi_master_put(sp->bitbang.master);
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-
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- return 0;
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-}
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-
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-#define glamo_spi_suspend NULL
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-#define glamo_spi_resume NULL
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-
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-static struct platform_driver glamo_spi_drv = {
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- .probe = glamo_spi_probe,
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- .remove = glamo_spi_remove,
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- .suspend = glamo_spi_suspend,
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- .resume = glamo_spi_resume,
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- .driver = {
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- .name = "glamo-lcm-spi",
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- .owner = THIS_MODULE,
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- },
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-};
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-
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-static int __init glamo_spi_init(void)
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-{
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- return platform_driver_register(&glamo_spi_drv);
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-}
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-
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-static void __exit glamo_spi_exit(void)
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-{
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- platform_driver_unregister(&glamo_spi_drv);
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-}
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-
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-module_init(glamo_spi_init);
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-module_exit(glamo_spi_exit);
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-
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-MODULE_DESCRIPTION("Smedia Glamo 336x/337x LCM serial command SPI Driver");
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-MODULE_AUTHOR("Harald Welte <[email protected]>")
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-MODULE_LICENSE("GPL");
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-#endif
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Lars-Peter Clausen